JPH07287749A - Map display device and method for processing picture - Google Patents

Abstract

PURPOSE:To quickly connect and display an adjacent map by the use of a computer system and to display a road always in a horizontal direction so as to easily observe it. CONSTITUTION:Differently from map image data for displaying a map, an interception piece vector table is provided in an interception piece at the boundary of an adjacent map, and when a required map is specified, an interception piece vector corresponding to the map is retrieved and extracted and map image data 12, 13 are mutually connected through the interception piece vector. On the other hand, a center axis vector table passing through the center of a road is prepared, and a center axis vector corresponding to the map is retrieved and the center axis vector is always kept horizontal on the center of a screen to be displayed always horizontally even at the time of scroll.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a map display device in which maps of roads, railways, houses, etc. are stored as a database and displayed and managed using a computer system. In particular, when managing continuous equipment on topography such as roads and railways, it is possible to display continuously. The present invention also relates to a processing method of connecting and displaying drawings and other images other than maps.

[0002]

2. Description of the Related Art A map display device inputs and manages these maps as raster data by an image scanner in order to manage various maps on a computer.
The input raster data is continuously displayed on a CRT or the like on a computer.

FIG. 49 is a diagram showing a process of a conventional map search device disclosed in, for example, Japanese Patent Laid-Open No. 1-211074. FIG. 49 shows an example in which a magnetic disk device is used as the rewritable storage means and an optical disk device is used as the non-rewritable storage means. In FIG. 49, the map search device is composed of an optical disk device 4 which is a first storage device for storing compression-coded fixed map information, and a device for reading the contents of the optical disk device 4 and decompressing the code to perform image processing. An image processor 3, a keyboard 5 connected to the image processor 3, and a monitor 1 which is means for displaying the output of the image processor 3.
Is equipped with. FIG. 50 is a diagram showing the relationship between the map information and vector information of this map search device.

In FIG. 49, the map information is stored in the optical disk device 4 in a disk compression encoded form, and the information such as road construction information is stored in the magnetic disk device 2 as vector information. FIG. 50 shows the map information and the magnetic disk device 2 stored in the optical disk device 4 shown in FIG.
In the figure showing the relationship with the vector information stored in the disk, the map information is disk compression-coded in units of partial images A1, A2, B1, B2, ... And is stored on the optical disk. The position of the partial image B2 is represented by the distances x1 and y1 from the lower left of the partial image to the origin. The vector information is represented by distances x2 and y2 from the origin.

The image processor 3 reads out the disk-compression-coded map information from the optical disk device 4 according to the address information input from the keyboard 5, decodes it, and writes it in the image memory in the image processor 3. At the same time, the vector information of the area corresponding to the partial image of the map information is read from the magnetic disk device 2, and as a result, it is combined with the map information on the image memory and displayed on the monitor 1. At this time, the map information and the vector information are combined in the form shown in FIG.

[0006]

Since the conventional image map display device performs the above-mentioned processing, (1) the map is displayed in a predetermined direction and the road at the center is displayed horizontally. , The map cannot be displayed with the specified direction (for example, north). (2) Each page of the map has a uniform size (the same reduction scale),
Maps cannot be displayed continuously unless they are orthogonal. (3) The map cannot be displayed along a continuous target object such as a road or railway by rotating the map at an arbitrary angle. (4) Each time the map is displayed, the process of reading the map image data occurs, and the reading speed is slow. (5) When the map scroll processing is performed, the display speed is slow because the map synthesis processing is performed again as the display position of the map is moved. (6) The map and the vector data are managed in the same coordinate system, and when inputting an image, it is necessary to process a document and the like, which increases the input cost. There was such a problem.

The present invention has been made to solve the above problems. A first object is to obtain a map display device capable of displaying a map in a specified direction or direction. A second object is to obtain a map display device capable of continuously displaying a map, even if the pages of the map are not of uniform size and are orthogonal or non-orthogonal.

A third object of the present invention is to obtain a map display device thus created, which is capable of performing a map scrolling process for moving the display position of the map at high speed. A fourth object is to provide a map display device having a function of displaying vector data on a displayed map so as to be superimposed on image data and drawing a vector. A fifth object is to provide an image processing method which is applied to images such as drawings other than maps.

[0009]

A map display device according to claim 1 of the present invention is a system including a CPU, an input device, a storage device, and a display monitor, and a plurality of maps are each provided. First storage means for storing it as map image data, and second storage means for storing each piece of map image data as position information representing consecutive positions on a predetermined line on the map.
When a desired map is designated by the storage means, the designated map image data is extracted from the first storage means and displayed, and the display center of the displayed map is designated. The above-mentioned map information is extracted from the second storage means in the vicinity of the displayed display center, the direction of the line connecting the position information is recognized, and the extracted direction is set to a predetermined angle. Second display means for rotating the data and displaying the map of the designated display center from the rotated map image data.

A map display device according to a second aspect of the present invention is the map display device according to the first aspect, wherein when the display center of the displayed map is designated, a line connecting the positional information of the designated neighborhood is displayed. A means for recognizing a direction, a means for calculating coordinates of a rectangle displayed on the screen, a means for rotating the calculated rectangle coordinates so as to match the inclination of the recognized line direction, and a rotational coordinate thereof, a rotated screen display rectangle. Means for moving and superimposing the rotated screen display rectangle on the map image data so that the center coordinates of the map image data overlap the display center of the map image data, and circumscribing the rotated screen display rectangle on the map image data. In addition, means for calculating a rectangle without inclination and extracting map image data in this rectangle, the above-mentioned rotation on the extracted map image data of the rectangle. Means for rotating the rectangular map image data as described above extraction to screen rectangle gradient is eliminated, and has a means for displaying the screen display rectangular portion of the rotated map image data.

A map display device according to a third aspect of the present invention is a system including a CPU, an input device, a storage device, and a display monitor, and stores a plurality of maps as map image data. When the first storage means, the third storage means for storing the orientation information indicating the orientation on the map for each map image data, the desired map is designated, and the orientation of the designated map is designated, The map image data corresponding to the specified map is extracted from the first storage unit, the orientation information of the specified map is extracted from the third storage unit, and the extracted map image data is extracted according to the extracted orientation. It is provided with display means adapted to rotate and display.

According to a fourth aspect of the present invention, in the map display apparatus according to the third aspect, when the display means designates a desired map, the designated map image data is extracted from the first storage means and displayed. Means for specifying the display center of the displayed map and specifying the orientation of the specified map, the map image data corresponding to the specified map is extracted from the first storage means, and Means for extracting the orientation information of the designated map from the third storage means, calculating the coordinates of the rectangle to be displayed on the screen,
A means for rotating the calculated rectangular coordinates so as to match the specified orientation and calculating the rotated coordinates, the rotated screen display so that the center coordinates of the rotated screen display rectangle overlap the display center of the map image data. Means for moving and superimposing a rectangle on the map image data, circumscribing the rotated screen display rectangle on the map image data, and calculating a rectangle without inclination, and extracting the map image data within this rectangle Means for rotating the extracted rectangular map image data so that the rotated screen display rectangle on the map image data in the extracted rectangle is in a position according to the specified orientation, and the rotated map image It has means for displaying the above-mentioned screen display rectangular portion of the data.

A map display device according to a fifth aspect of the present invention is a system including a CPU, an input device, a storage device, and a display monitor, and stores a plurality of maps as map image data. A first storage means, a second storage means for storing each map image data as position information indicating a continuous position on a predetermined line on the map, and an orientation indicating an orientation on the map for each map image data. Third storage means for storing information, first display means for extracting and displaying the designated map image data from the first storage means when a desired map is designated, and display of the displayed map When the center is designated, the position information in the vicinity of the designated display center is extracted from the second storage means, the direction of the line connecting the position information is recognized, and the recognized direction is a predetermined angle. And processing means for rotating the extracted map image data so that the map image data corresponding to the extracted position information comes to the center of the screen, and the orientation information corresponding to the map image data is displayed at the first position. Second display means for extracting the azimuth information corresponding to the designated map image data from the storage means of No. 3 and displaying the azimuth information.

A map display device according to claim 6 of the present invention is a system including a CPU, an input device, a storage device, and a display monitor, and a plurality of maps obtained by dividing one map are respectively provided. First storage means for storing as map image data, fourth storage means for storing slice information in which the positions of slices connecting adjacent maps are associated with each other, and desired ones adjacent to each other from the first storage means. The plurality of map image data are extracted, the segment information of the extracted map image data is extracted from the fourth storage means, and the plurality of map image data adjacent to each other are connected via the extracted segment. A map connecting means for displaying the connected map image data is provided.

According to a seventh aspect of the present invention, in the map display apparatus according to the sixth aspect, when the map connecting means designates a desired map, the designated map image data is extracted from the first storing means, and Means for extracting slice information corresponding to the extracted map image data from the fourth storage means, and extracting adjacent map image data from the first storage means from the extracted storage information, the extracted map image data The space is connected based on the above-mentioned segment information, and the connected map image data is displayed.

A map display device according to claim 8 of the present invention is a system including a CPU, an input device, a storage device, and a display monitor, and a plurality of maps obtained by dividing one map are provided. The first storage means for storing as map image data, the second storage means for storing for each map image data as position information indicating a continuous position on a predetermined line on the map, and adjacent maps are connected. Fourth storage means for storing slice information in which slice positions are associated with each other, display means for extracting and displaying the designated map image data from the first storage means when a desired map is designated, and this display When the display center on the designated map is designated, the position information in the vicinity of the designated display center is extracted from the second storage means, the direction of the line connecting the position information is recognized, and this recognition is performed. The means for rotating the extracted map image data so that the direction becomes a predetermined angle, and the designation of the display center on the displayed map, the designated display center as a display screen, and the section within the display screen. Means for extracting information from the fourth storage means, means for extracting adjacent map image data based on the extracted slice information, and adjacent map image data extracted for the rotated map image data. And a means for displaying a map that is the display center by connecting the sections via the section information.

A map display device according to a ninth aspect of the present invention is a system including a CPU, an input device, a storage device, and a display monitor, and a plurality of maps obtained by dividing one map are provided. The first storage means for storing as map image data, the second storage means for storing for each map image data as position information indicating a continuous position on a predetermined line on the map, and adjacent maps are connected. Fourth storage means for storing the slice information in which the positions of the slices are associated with each other, display means for extracting and displaying the designated map image data from the first storage means when a desired map is designated, and the map. When the means for extracting the segment information included in the screen display rectangle on the image data and the display center on the displayed map are specified, the direction of the line connecting the specified nearby position information is determined. And a means for calculating the coordinates of the rectangle displayed on the screen, rotating the calculated rectangle coordinates so as to match the inclination of the recognized direction, and calculating the rotation coordinates thereof, and the means for calculating the rotated screen display rectangle. A means for moving and superimposing the rotated screen display rectangle on the map image data so that the center coordinates overlap the display center of the map image data, and the rotated screen display rectangle on the map image data. A means for dividing by the segment information, circumscribing a screen display quadrangle formed on the opposite side of the map adjacent to this divided portion, and calculating a rectangle without inclination, and extracting map image data in this rectangle. , The map image data in the extracted rectangle is removed so that the screen display rectangle on the map image data in the extracted rectangle is not tilted. And means for rolling,
Means for clearing the side where the adjacent maps of the section of the screen display quadrangle in the rotated rectangle are connected, and extracting the adjacent map image data from the section information,
A means for obtaining a screen display quadrangle to be displayed adjacently from the section of the map image data, a means for circumscribing the screen display quadrangle on the map image data, and a rectangle without inclination, and a means for calculating the inside of the rectangle. Means for rotating the map image data in the rectangle so that the screen display quadrangle is not inclined, and means for clearing the side of the section of the screen display quadrangle in the rotated rectangle to which the adjacent maps are connected. And a means for displaying a continuous map by superimposing the map image data of the remaining cleared screen display quadrangle on both sides.

A map display device according to a tenth aspect of the present invention is a system including a CPU, an input device, a storage device, and a display monitor, and stores a plurality of maps as map image data. The first storage means, the third storage means for storing the orientation information indicating the orientation on the map for each map image data, and the section information in which the positions of the sections connecting the adjacent maps are associated with each other are stored. When the fourth storage means and the desired map are designated and the orientation of the designated map is designated, the map image data corresponding to the designated map is extracted from the first storage means and designated. Display means for extracting the orientation information of the map from the third storage means, and displaying the extracted map image data according to the extracted orientation, and the displayed map image. Section information corresponding to the data is extracted from the fourth storage unit, adjacent map image data is extracted from the extracted section information from the first storage unit, and the section information is set between the extracted map image data. It is provided with map connecting means for connecting based on this and displaying the connected map image data.

A map display device according to an eleventh aspect of the present invention is a system including a CPU, an input device, a storage device, and a display monitor, and a plurality of maps obtained by dividing one map are provided. The first storage means for storing the map image data, the third storage means for storing the orientation information indicating the orientation on the map for each map image data, and the position of the segment connecting the adjacent maps are associated with each other. The fourth storage means for storing the section information, the display means for extracting and displaying the designated map image data from the first storage means when a desired map is designated, and the orientation of the designated map. When the designation is made, a means for extracting the orientation information corresponding to the designated orientation from the third storage means and the coordinates of the rectangle displayed on the screen are calculated, and the calculated rectangle coordinates are assigned to the designated orientation. By specifying the means for calculating the rotation coordinates by rotating so as to match the display center on the displayed map, the rotation is performed so that the center coordinates of the rotated screen display rectangle overlap the display center of the map image data. Means for moving and superimposing the screen display rectangle on the map image data, and means for extracting section information included in the screen display rectangle on the map image data,
The rotated screen display rectangle on the map image data is divided by the segment information, and the divided portion circumscribes a screen display rectangle formed on the opposite side of the adjacent map,
In addition, a means for calculating a rectangle without inclination and extracting map image data in this rectangle, and the screen display rectangle on the map image data in the extracted rectangle are positioned so as to follow the designated direction. A means for rotating the map image data in the extracted rectangle, a means for clearing the side of the section of the screen display quadrangle in the rotated rectangle to which the adjacent maps are connected, and an adjacent map from the section information. A means for extracting the image data and obtaining a screen display quadrangle to be displayed adjacently from the section of the map image data, and a rectangle circumscribing the screen display quadrangle on the map image data and having no inclination. Means and a map image in the extracted rectangle so that the screen display rectangle in the rectangle is located according to the specified orientation. The means for rotating the data, the means for clearing the side of the section of the screen display quadrangle in the rotated rectangle to which the adjacent map is connected, and the map image data of the remaining cleared screen display quadrangle are both. And a means for displaying a continuous map by superimposing the sections.

According to a twelfth aspect of the present invention, in the map display device according to any one of the first, second, fifth, eighth and ninth aspects, when the screen is scrolled, along a direction of a line connecting the positional information. A scroll processing means for moving the screen is provided.

According to a thirteenth aspect of the present invention, in the map display apparatus according to any one of the first, second, fifth, eighth and ninth aspects, when the screen is scrolled, the screen is prevented from rotating. At the same time, scroll processing means is provided for moving the screen so that the portion on the line connecting the above-mentioned position information is always near the display center.

A map display device according to a fourteenth aspect of the present invention is the map display device according to any one of the first, second, fifth, eighth, ninth, twelve and thirteenth aspects, wherein the map image data includes a plurality of map data such as roads and railways. The image data is linear or band-shaped image data extending over the map image data, and the position information is a plurality of vectors continuous along the linear or band-shaped image data.

According to a fifteenth aspect of the present invention, in the map display device according to any one of the sixth to eleventh aspects, the intercept information stored in the fourth storage means is a intercept vector, and the length of the intercept vector. Is set to a length according to the reduction scale of the corresponding map image data, and when connecting the adjacent map image data, reduction and expansion are performed according to the ratio of the lengths of the corresponding intercept vectors, and the reduction scales are made the same and are connected. A connecting means is provided.

According to a sixteenth aspect of the present invention, in the map display device according to any one of the first to fifteenth aspects, a memory buffer is provided and the map image data stored in the first storage means is temporarily stored in the memory buffer. Read to
A means for reading out the map image data on the memory buffer in accordance with the map display processing is provided.

According to a seventeenth aspect of the present invention, in the map display device according to any one of the first to sixteenth aspects, when the screen is scrolled, a common portion of the screen currently displayed and the screen to be moved is calculated. A scroll processing means is provided for transferring the map image data of the common portion to the display position after the movement and adding an additional portion other than the common portion for scrolling.

A map display device according to an eighteenth aspect of the present invention is the map display device according to any one of the sixth through tenth aspects, further comprising a vector drawing means for performing vector drawing on the maps connected through the sections. is there.

According to a nineteenth aspect of the present invention, in the map display apparatus according to the eighteenth aspect, a fifth storage means for storing the drawn vector data in association with the corresponding map image data is provided, and the drawn vector data is stored. When crossing a section, a processing unit is provided for dividing the section and associating it with the corresponding map image data and storing it in the fifth storage unit.

A map display device according to a twentieth aspect of the present invention is the map display device according to the eighteenth or nineteenth aspect, further comprising a sixth storage means for storing information relating to the drawn vector. The display means is provided for displaying the related information from the sixth storage means on the screen when the vector drawn in (3) is designated.

In the image processing method according to the twenty-first aspect of the present invention, a database that stores image data of images to be connected to each other and section information that associates positions of sections that connect adjacent images are stored. A database is provided, an image to be displayed is extracted from the database, the slice information corresponding to the image is extracted, and the images are connected via the slice information.

An image processing method according to a twenty-second aspect of the present invention is directed to a database storing image data of images to be connected to each other, and a position representing a continuous position on a predetermined line in the image for each of the image data. With a database that stores information, while extracting the image to be displayed from the database, extracting the position information corresponding to this image, when displaying the image of the image data,
The direction of the line connecting the position information is determined, and the image is displayed in the direction based on this determination direction.

An image processing method according to a twenty-third aspect of the present invention stores a database that stores image data of images to be connected to each other and section information that associates positions of sections that connect adjacent images. It has a database and a database that stores position information representing successive positions on a predetermined line in an image for each of the image data, extracts an image to be displayed from the database, and also corresponds to the image. The slice information and the position information are extracted, the images are connected through the slice information, the direction of the line connecting the position information is determined by the connected image, and the connection is performed in the direction based on the determination direction. The displayed image is displayed.

[0032]

In the map display device according to the first aspect of the present invention, a plurality of maps are respectively stored as map image data in the first storage means, and a predetermined map on each map is stored in the second storage means. Is stored as position information representing consecutive positions on the line, and when the desired map is designated by the first display means, the designated map image data is extracted from the first storage means and displayed, and the second display is displayed. When the display center of the displayed map is designated, the means extracts position information in the vicinity of the designated display center from the second storage means, recognizes the direction of the line connecting the position information, and recognizes this. The extracted map image data is rotated so that the direction becomes a predetermined angle, and the map of the display center designated from the rotated map image data is displayed.

A map display device according to a second aspect of the present invention is the map display device according to the first aspect, wherein when the display center of the displayed map is designated, a line connecting the positional information of the designated neighborhood is displayed. Recognize the direction, calculate the coordinates of the rectangle to be displayed on the screen, rotate the calculated rectangle coordinates to match the inclination of the recognized line direction, calculate the rotation coordinates, and calculate the center coordinates of the rotated screen display rectangle. Move the rotated screen display rectangle on the map image data so that it overlaps with the display center of the map image data, and superimpose it, and circumscribe the rotated screen display rectangle on the map image data, and calculate a non-tilted rectangle. Then, the map image data in this rectangle is extracted, and the extracted rectangular map image is eliminated so that the tilt of the rotated screen display rectangle on this extracted rectangle map image data is eliminated. Rotating the Jideta, a screen display rectangular portion of the map image data this rotation.

In the map display device according to claim 3 of the present invention, a plurality of maps are respectively stored as map image data in the first storage means, and the orientation on the map is stored for each map image data in the third storage means. When a desired map is designated by the display means and the orientation of the designated map is designated by the display means, map image data corresponding to the designated map is extracted from the first storage means. ,
The orientation information of the designated map is extracted from the third storage means,
The extracted map image data is rotated and displayed according to the extracted orientation.

According to a fourth aspect of the present invention, in the map display apparatus according to the third aspect, when the display means designates a desired map, the designated map image data is extracted from the first storage means and displayed. When the display center of the displayed map is specified and the orientation of the specified map is specified, the map image data corresponding to the specified map is extracted from the first storage means and the specified map The azimuth information is extracted from the third storage means, the coordinates of the rectangle displayed on the screen are calculated, the calculated rectangle coordinates are rotated so as to match the specified azimuth, and the rotation coordinates are calculated.
Move the rotated screen display rectangle over the map image data so that the center coordinates of the rotated screen display rectangle overlap with the display center of the map image data, and circumscribe the rotated screen display rectangle over the map image data. ,and,
A means for calculating a rectangle without inclination and extracting map image data in this rectangle, a rectangle extracted so that the rotated screen display rectangle on the map image data in this extracted rectangle will be in the position according to the specified orientation. The map image data is rotated, and the screen display rectangular portion of the rotated map image data is displayed.

In the map display device according to the fifth aspect of the present invention, the first storage means stores a plurality of maps as map image data, and the second storage means stores a predetermined map image data for each map image data. If the desired map is designated on the first display means, the third storage means stores the orientation information indicating the orientation on the map for each map image data. When the designated map image data is extracted from the first storage means and displayed, and the processing means designates the display center of the displayed map,
The position information in the vicinity of the designated display center is extracted from the second storage means, the direction of the line connecting the position information is recognized, and the extracted map image data is arranged so that the recognized direction becomes a predetermined angle. The map is rotated and displayed on the second display means so that the map image data corresponding to the extracted position information comes to the center of the screen, and the orientation information corresponding to this map image data is designated from the third storage means. The direction information corresponding to the image data is extracted and the direction is displayed.

According to a sixth aspect of the present invention, in the map display device, a plurality of maps obtained by dividing one map by the first storage means are stored as map image data, respectively. The slice information that associates the positions of the slices that connect to each other is stored, and the desired multiple pieces of map image data that are adjacent to each other are extracted from the first storage unit by the map connecting unit, and the slice information of the extracted map image data is stored. A plurality of map image data that are extracted from the fourth storage means and are adjacent to each other via the extracted slice are connected, and the connected map image data are displayed.

According to a seventh aspect of the present invention, in the map display apparatus according to the sixth aspect, when a desired map is designated, the designated map image data is extracted from the first storage means and the extracted map is extracted. The slice information corresponding to the image data is extracted from the fourth storage means, the adjacent map image data is extracted from the extracted slice information from the first storage means, and the space between the extracted map image data is based on the slice information. And the linked map image data is displayed.

In the map display device according to claim 8 of the present invention, a plurality of maps obtained by dividing one map by the first storage means are respectively stored as map image data, and each map image data is stored by the second storage means. Each of them is stored as position information representing a continuous position on a predetermined line on the map, and the fourth storage means stores the section information in which the positions of the sections connecting the adjacent maps are associated with each other. When the map is designated, the designated map image data is extracted from the first storage means and displayed, and when the display center on the displayed map is designated, the position information in the vicinity of the designated display center is displayed. The map image data extracted from the second storage means, the direction of the line connecting the position information is recognized, and the extracted map image data is rotated so that the recognized direction becomes a predetermined angle. A constant, as the display screen the specified display center sections information in the display screen 4
From the storage means, the adjacent map image data is extracted based on the extracted slice information, and the rotated map image data is connected to the extracted adjacent map image data via the slice information, and the display center is displayed. And display the map.

In the map display device according to claim 9 of the present invention, a plurality of maps obtained by dividing one map by the first storage means are respectively stored as map image data, and each map image data is stored by the second storage means. Each of them is stored as position information representing a continuous position on a predetermined line on the map, and the fourth storage means stores the section information in which the positions of the sections connecting the adjacent maps are associated with each other. When the map is designated, the designated map image data is extracted and displayed from the first storage means, the segment information included in the screen display rectangle on the map image data is extracted, and the display center on the displayed map is extracted. If you specify, the direction of the line connecting the specified nearby position information is recognized, the coordinates of the rectangle displayed on the screen are calculated, and the calculated rectangular coordinates are rotated to match the inclination of the recognized direction. Calculate the rotation coordinates of, and move the rotated screen display rectangle over the map image data so that the center coordinates of the rotated screen display rectangle overlap with the display center of the map image data. The screen display rectangle is divided by the segment information, and the screen display rectangle that is formed on the opposite side of the map adjacent to this divided portion is circumscribed, and a rectangle without inclination is calculated,
The map image data in this rectangle is extracted, and the means for rotating the map image data in the extracted rectangle to eliminate the inclination of the screen display rectangle on the map image data in this extracted rectangle, and the Clear the side where adjacent maps of the screen display quadrangle are connected, extract the adjacent map image data from the section information, and obtain the screen display quadrature that displays adjacently from this map image data section. A rectangle that circumscribes the screen display rectangle on the map image data and has no tilt is calculated, and the map image data in the rectangle is rotated so that the screen display rectangle in this rectangle is not tilted. Clear the side of the screen display quadrangle in which the adjacent maps are connected and clear the remaining screen display quadrangle map image Show map consecutive superimposed data each other in sections of both.

A map display device according to a tenth aspect of the present invention stores a plurality of maps as map image data in the first storage means, and stores a map orientation for each map image data in the third storage means. Is stored in the fourth storage means, and the section information in which the positions of the sections connecting the adjacent maps are associated with each other is stored in the fourth storage means. When the orientation of the map is designated, the map image data corresponding to the designated map is extracted from the first storage means, the orientation information of the designated map is extracted from the third storage means, and extracted according to the extracted orientation. The map image data is displayed, the segment information corresponding to the displayed map image data is extracted from the fourth storage unit by the map connecting unit, and the segment information is adjacent from the extracted segment information. FIG image data extracted from the first storage means, connected on the basis of the between the extracted map image data to intercept information, and displays the map image data this connection.

A map display device according to claim 11 of the present invention stores a plurality of maps obtained by dividing one map as map image data by the first storage means, and stores each map image data by the third storage means. The orientation information indicating the orientation on the map is stored for each, and the section information in which the positions of the sections connecting the adjacent maps are associated with each other is stored in the fourth storage unit, and when the desired map is designated on the display unit, the section information is stored. When the designated map image data is extracted from the first storage means and displayed and the orientation of the designated map is designated, the orientation information corresponding to this designated orientation is extracted from the third storage means and displayed on the screen. Calculate the coordinates of the rectangle to be rotated, rotate the calculated rectangle coordinates to match the specified orientation, and calculate the rotation coordinates,
When the display center on the displayed map is specified, the rotated screen display rectangle is moved and superimposed on the map image data so that the center coordinates of the rotated screen display rectangle overlap with the display center of the map image data. The segment information included in the screen display rectangle on the data is extracted, the rotated screen display rectangle on the map image data is divided by the segment information, and the screen formed on the opposite side of the adjacent map in this divided part A rectangle that circumscribes the display rectangle and has no inclination is calculated, the map image data in this rectangle is extracted, and the screen display rectangle on the map image data in this extracted rectangle is placed at the position according to the specified direction. The map image data in the extracted rectangle is rotated, and the side where the adjacent maps of the section of the screen display rectangle in this rotated rectangle are connected. Clear, extract adjacent map image data from the slice information, obtain a screen display rectangle that displays adjacently from the slice of this map image data, circumscribe the screen display rectangle on this map image data, and A rectangle without tilt is calculated, the map image data in the extracted rectangle is rotated so that the screen display rectangle in this rectangle is in the position according to the specified orientation, and the segment of the screen display rectangle in this rotated rectangle is rotated. The side where adjacent maps are connected is cleared, and the remaining clear screen display quadrangle map image data are overlapped with each other's sections to display a continuous map.

According to a twelfth aspect of the present invention, in the map display device according to any one of the first, second, fifth, eighth and ninth aspects, when the screen is scrolled by the scroll processing means,
Move the screen along the direction of the line connecting the position information.

According to a thirteenth aspect of the present invention, in the map display apparatus according to any one of the first, second, fifth, eighth and ninth aspects, when the screen is scrolled by the scroll processing means, the screen is rotated. The screen is moved so that the portion on the line connecting the position information is always near the display center.

A map display device according to a fourteenth aspect of the present invention is the map display device according to any one of the first, second, fifth, eighth, ninth, twelve and thirteenth aspects, wherein the map image data includes a plurality of roads, railways and the like. The image data is linear or band-shaped image data over the map image data, and the position information is a plurality of vectors continuous along the linear or band-shaped image data.

According to a fifteenth aspect of the present invention, in the map display device according to any one of the sixth to eleventh aspects, the intercept information stored in the fourth storage means is a intercept vector, and the length of the intercept vector. Is set to the length corresponding to the reduction scale of the corresponding map image data, and when connecting the adjacent map image data by the connecting means, the scale is made the same by reducing / enlarging according to the ratio of the length of the corresponding intercept vector. To connect.

According to a sixteenth aspect of the present invention, in the map display device according to any one of the first to fifteenth aspects, a memory buffer is provided and the map image data stored in the first storage means is temporarily stored in the memory buffer. The map image data on the memory buffer is read and read according to the map display process.

According to a seventeenth aspect of the present invention, in the map display device according to any one of the first to sixteenth aspects, when the scroll processing means scrolls the screen, the screen currently displayed and the screen to be moved are common. A part is calculated, the map image data of this common part is transferred to the display position after the movement, and an additional part other than the common part is added and scrolled.

A map display device according to an eighteenth aspect of the present invention is the map display device according to any one of the sixth to tenth aspects, in which the vector drawing is performed on the maps connected through the sections by the drawing means.

According to a nineteenth aspect of the present invention, in the map display apparatus according to the eighteenth aspect, the vector data drawn by the fifth storage means is stored in association with the corresponding map image data, and the drawn vector data is a section. When straddling, the processing means divides the segment and stores it in the fifth storage means in association with the corresponding map image data.

A map display device according to a twentieth aspect of the present invention is the map display device according to the eighteenth or nineteenth aspect, which stores information relating to the vector created by the sixth storage means and is displayed on the screen by the display means. When the vector drawn above is designated, the related information is displayed on the screen from the sixth storage means.

An image processing method according to claim 21 of the present invention extracts an image to be displayed from a database, and
The slice information corresponding to this image is extracted, and the images are connected via the slice information.

The image processing method according to claim 22 of the present invention extracts an image to be displayed from the database and
When the position information corresponding to this image is extracted and the image of the image data is displayed, the direction of the line connecting the position information is determined, and the image is displayed in the direction based on this determination direction.

An image processing method according to claim 23 of the present invention extracts an image to be displayed from a database and
The slice information and the position information corresponding to this image are extracted, the images are connected via the slice information, the direction of the line connecting the position information on the connected images is determined, and the direction based on this determination direction Display images linked with.

[0055]

【Example】

Example 1. The system (hardware) configuration used in this embodiment is an ordinary desktop computer system with a CRT, and does not require special hardware or special system software. An example is shown in FIG.

In FIG. 1, 1 is a monitor (CRT) for displaying a map, 5 is a keyboard, and other input devices such as a mouse may be used. Reference numeral 6 is an image scanner for inputting a map document as raster data, 7 is a central processing unit (CPU) for performing various processing and calculation processing of a map, and 8 is a memory, mainly a RAM. Reference numeral 9 denotes an auxiliary recording device for storing map image data, vector data, software, etc., which uses a magnetic disk device, an optical disk device, a magneto-optical disk device, or the like. The memory 8 and the auxiliary recording device 9 form a storage unit. Note that this configuration is used not only in this embodiment but also in the following embodiments.

There are image data and vector data which are the basis of joining for performing map management, and joining data indicating connection. The data used in this process will be described with reference to FIG. The data numbers indicate the numbers in the figure. This data is commonly used in all the examples.

1. Map image data This is an image file input by the image scanner for each map page. In the case of a map, it is often the case that all cannot be described on one page, and therefore it often covers several pages to several tens of pages. This map image data is stored in the auxiliary recording device 9 as the first storage means.

2. Vector data 21 Center axis vector (positional information) Basic axis vector for each map page, which is represented as a center line vector. This vector is represented by a continuous polyline. FIG. 2 shows a vector on the center line of the road. Further, this vector may be position information that represents positions continuously on a predetermined line at arbitrary intervals.
On a highway, etc., usually, a vector is continuously expressed on a single line, but when a road branches or intersects, it is provided along the road. This central axis vector (position information) is stored in the auxiliary recording device 9 as the second storage means using the vector database. The center axis vector may be position information equivalent to this. For example, position data provided along both sides of the target road, or coordinates scattered on the center line of the road is used as the position information. In other words, it may be position information representing continuous positions on a predetermined line on a map such as a road.

22 Section Vector Data (Section Information) A continuous map is divided for each page, and the section divided from the adjacent map is a section, and the position of this section is represented by a vector. Normally, a plurality of intercept vectors (such as both ends of a road) are used for one map. This vector is represented by a single vector line. This intercept vector data is stored in the intercept data table shown in FIG. 3 in the vector database in which only the connection information of the intercepts is attached to each vector with an individual ID (intercept 1, intercept 2, etc.). The intercept vector data may be equivalent intercept information.
For example, the vector is represented by the coordinates of two points and its direction, but it may be displayed by three or more points. In the case of three or more points, it can be applied to not only a straight line segment but also a segment such as a broken line or a curved line.

23 azimuth vector (azimuth information) This is represented by a vector quantity representing the azimuth (east, west, north, north, etc.) of the map. This azimuth vector is stored in the auxiliary recording device 9 as the third storage means using the vector database. The azimuth vector may be azimuth information equivalent to this. For example, north, south, east, west, etc. are represented by the coordinates of four points.

3. Section Vector Table (illustrated in FIG. 3) 31 Link source section vector and link destination section vector In FIG. 3, “section 1” and “section 2” are linked.
This intercept vector table is stored in the auxiliary recording device 9 as the fourth storage means.

4. Intersection data file (illustrated in FIG. 4) In FIG. 4, the coordinates x1, y1 and x2, y2 of "intersection 1" are used, and when the intercept vector table is referred to, the intercept data file is used for the intercept. Output a vector. This table is stored in the auxiliary recording device 9.

In this embodiment, "display processing without adjacent display of map" will be described. In addition, here, a case is shown in which a map is displayed parallel to the central axis vector.

(1) A map to be displayed is designated and displayed on the screen. When a desired map is designated by the keyboard 5 or mouse, the CPU 7 searches the map image data stored in the first storage means in the auxiliary recording device 9, extracts the desired map image data, and stores it in the memory 8. Write (transcribe). The map image data of this memory 8 is monitored 1
To display. In this case, it may be transferred to the auxiliary recording device 9 instead of being transferred to the memory 8, but the processing speed becomes slow. Therefore, when the map image data is once read from the auxiliary recording device 9, it is better to transfer it to the memory 8 and perform the subsequent image processing. This description is also processed on the memory 8. Since the memory 8 and the auxiliary recording device 9 form the storage means as described above, the storage means is used regardless of which one is used, and operations other than the processing speed do not change. (Hereinafter, the operations of the hardware such as the CPU 7, the monitor 1, and the auxiliary recording device 9 are omitted for the sake of easy understanding.)

(2) Designate a position (point) as the display center on the map displayed on the screen. The display center P on FIG. 5 is designated. (3) A central axis vector within the range of the screen display size is searched centering on the display point. The central axis vector 21 of FIG. 5 is searched. (4) The inclination of the central axis vector closest to the retrieved display center is set as the inclination of the map. The inclination of the central axis vector 21 closest to the display center P in FIG. 5 is taken as the inclination of the map. (Although not shown, the inclination from the horizontal is θ.)

(5) On the other hand, the map rectangle to be displayed is calculated from the center point and the inclination of the map. This is performed by using a part other than a part of the map image data of the memory 8, and the display screen sizes of FIG. 6 are P1, P2, P3, P4.
And the coordinates Q1, Q2, Q3, Q4 rotated according to the inclination (θ) of the map in FIG. 7 are obtained. Center coordinates (px, py), display rectangle size (2wx, 2wy), coordinates before rotation processing are P1 (px + wx, py + wy), P2 (px + wx, py-wy),
P3 (px-wx, py-wy), P4 (px-wx, py + wy)
Next to

The coordinates after the θ angle rotation are Q1 (px + wx * cosθ−wy * sinθ, py + wx * sinθ + wy
* Cosθ) Q2 (px + wx * cosθ + wy * sinθ, py + wx * sinθ−wy
* Cosθ) Q3 (px-wx * cosθ + wy * sinθ, py-wx * sinθ-wy
* Cosθ) Q4 (px-wx * cosθ-wy * sinθ, py-wx * sinθ + wy
* Cos θ) (Fig. 7) (6) The screen display rectangle is superimposed on the coordinates on the map image. (FIG. 8) The center (px, py) of this display screen is moved in parallel so as to match the display center P on the map image, and the coordinates of the display screen are obtained. That is, the screen display rectangle of FIG. 7 is superimposed on the map of FIG.

(7) A rectangle circumscribing the displayed map rectangle is calculated. (FIG. 9) As shown in FIG. 9, the coordinates of the circumscribed rectangle are obtained by taking the maximum value and the minimum value of the coordinate values of each vertex. If the circumscribing rectangles are R1, R2, R3, and R4, then R1 (maxx, maxy), R2 (maxx, miny) R3 (minx, miny), and R4 (minx, maxy) are obtained.

(8) The map image data is transcribed in the size of the circumscribed rectangle. (FIG. 10) By transcribing into the memory 8 in the size of this circumscribed rectangle, the data amount of the map image data becomes very small and the processing speed becomes very fast. Further, the image processing is simplified by cutting out the map image data in a rectangular shape, and subsequent rotation processing and the like can be easily performed. Of course, the screen display rectangle may be cut out and extracted, but the transfer processing is large and the processing becomes slow.

(9) The transferred image data is rotated according to the center point and the inclination of the map. (FIG. 11) Rotate by an angle θ so that the screen display rectangle is upright without inclination. (10) The screen display rectangular map image data is extracted, transcribed, and displayed on the screen. (FIG. 12) The map image data of the upright screen display rectangle is stored in the memory 8.
It is extracted and transcribed to another part of, and displayed on the screen of the monitor 1.

The desired map can be displayed as described above, but since the actual processing is performed using the computer system, it can be displayed with almost no waiting time.
Further, the target designated display position is displayed in the vicinity of the center of the screen, and the display screen is displayed with the directions of the central axis vectors being parallel, so that an easy-to-see map is displayed.

Although the case where the central axis vectors are parallel is shown here, even if the road runs in the vertical direction of the screen, it can be made horizontal so that it can be seen easily. If you want to display vertically instead of horizontally, it is easy to set the condition (instruction from keyboard etc. or initial setting) so that the center axis vector in the vicinity of the display center becomes vertical when the display center is specified. The map can be displayed vertically on the. Similarly, when there is a road in an oblique direction, the road can be displayed at any angle such as the horizontal direction, the oblique direction, and the vertical direction. When the desired map is set to have a predetermined display direction in this way, the map can be displayed in the display direction according to the setting.

Example 2. In this embodiment, as in the above-described embodiment, "display processing without adjacent display of map" will be described. However, since the rectangle circumscribing the screen display rectangle is not used for clipping, the processing speed becomes slower, but the map can be displayed with the direction of the central axis vector being the designated direction. Here, the case where a map is displayed parallel to the central axis vector is shown.

(1) A map to be displayed is designated and displayed on the screen. (2) On the map displayed on the screen, the position (point) that becomes the display center P is designated. (FIG. 13) (3) A central axis vector in the display size range is searched centering on the display point. The central axis vector 21 of FIG. 13 is searched.

(4) The inclination of the central axis vector closest to the retrieved display center is used as the inclination of the map. (FIG. 13) The inclination of the central axis vector 21 closest to the display center P of FIG. 5 is set as the inclination of the map. (Although not shown, the inclination from the horizontal is θ.) The above (1) to (4) are the same as in the first embodiment.

(5) The map image data is rotated about the display center P so that the central axis vector 21 becomes horizontal. (FIG. 14) In this case, since the image data is not cut out in a rectangular shape as in the first embodiment, the processing speed becomes slow. (6) On the other hand, the map rectangle to be displayed is calculated from the center point. (FIG. 15) This is performed by using a portion other than the portion of the map image data of the memory 8, and the display screen size of FIG. 15 is the display rectangle of P1, P2, P3, P4, and the center coordinates (p
x, py) and the display rectangle size (2wx, 2wy), the coordinates are P1 (px + wx, py + wy), P2 (px + wx, py-wy),
P3 (px-wx, py-wy) and P4 (px-wx, py + wy).

(7) The screen display rectangle is superimposed on the coordinates on the map image. (FIG. 16) The center (px, py) of this display screen is translated so as to match the display center P on the map image, and the coordinates of the display screen are obtained. (8) Screen display Rectangle map image data is extracted, transcribed, and displayed on the screen. (FIG. 17) The map image data of the screen display rectangle is extracted and transferred to another portion of the memory 8 and displayed on the screen of the monitor 1.

As described above, it is possible to easily display the designated map by making the designated central axis vector of the display center parallel. Similar to the first embodiment, the angle of the central axis vector can be set to be vertical or any angle other than horizontal, so that the map can be displayed at the specified angle.

Example 3. In this embodiment, as in the above-described embodiment, "display processing without adjacent display of map" will be described. Here, a case is shown in which the map is displayed using the azimuth vector instead of the central axis vector.

(1) A map to be displayed is designated and displayed on the screen. (2) On the map displayed on the screen, the position (point) that becomes the display center is specified. (FIG. 18) The display center P on FIG. 13 is designated.

(3) The direction vector of the displayed map is searched and extracted. (FIG. 18) FIG. 1 stored in the third storage means in the auxiliary recording device 9.
The coordinates of the designated azimuth (for example, north) are extracted from the azimuth vector table shown in FIG. If the direction is not north,
The vector in that direction is calculated from this north data. The direction may be specified by inputting from the keyboard, but the direction vector may be automatically extracted when the map is specified in (1) above. In the case of the above (1), the azimuth may be designated by an external input (keyboard or the like).

The display of the azimuth has already been displayed in FIG. 18, but this is obtained by searching and extracting the azimuth vector in (1) above. Whether to display the azimuth according to the extracted azimuth vector can be easily switched by an instruction.
For example, when the orientation is written in the map image data itself, it is displayed in duplicate and may not be displayed.

(4) The inclination of the retrieved azimuth vector is
It is the slope of the map. (FIG. 18) Although not shown, this inclination is θ, and this inclination is an angle with 0 degrees in the north. (5) On the other hand, the map rectangle to be displayed is calculated from the center point and the inclination of the map. In this calculation, the screen display rectangle is obtained in the same manner as in the first embodiment, and this is rotated to obtain the coordinates, but the description is omitted. (6) Overlay the screen display rectangle on the coordinates on the map image. (FIG. 20) The coordinates of the display screen are obtained by matching the center of the screen display rectangle with the display center P on the map image.

(7) A rectangle circumscribing the map rectangle to be displayed is calculated. (FIG. 20) This calculation is also similar to that of the first embodiment, and therefore its description is omitted. (8) Transfer the map image data in the size of the circumscribed rectangle. (FIG. 21) By transcribing in the memory 8 in the size of this circumscribing rectangle, the data amount of the map image data becomes very small and the processing speed becomes very fast. Further, the image processing is simplified by cutting out the map image data in a rectangular shape, and subsequent rotation processing and the like can be easily performed. Of course, the screen display rectangle may be cut out and extracted, but the transfer processing is large and the processing becomes slow.

(9) The transcribed image data is rotated according to the center point and map inclination. (FIG. 22) The image is rotated by an angle θ, and in this case, the azimuth (north) is upward, that is, the screen display rectangle is upright without inclination.

(10) Screen display Rectangle map image data is extracted, transcribed, and displayed on the screen. (FIG. 22) The map image data of the screen display rectangle is extracted and transferred to another portion of the memory 8 and displayed on the screen of the monitor 1.

Example 4. This embodiment is a modified example using the orientation vector of the third embodiment, and shows an example in which the rectangle of the image data is not cut out. The means is almost the same as in the second embodiment. (1) First, a desired map is designated and called as shown in FIG. 18, and the map is displayed. (2) Designate the azimuth. For example, if north is specified, the azimuth vector is searched and extracted from the third storage means,
Is displayed. (FIG. 18) (3) Rotate the called map image data as shown in FIG. (4) The display center P is specified, and the screen display portion (screen display rectangle) is superimposed on this display center. (FIG. 23) (5) The map image data of the screen display portion is extracted, transcribed, and displayed on the screen. As described above, although the processing speed is slow, it is possible to display the map according to the designated direction.

Example 5. In this embodiment, the central axis vector is displayed in the horizontal direction while displaying the azimuth, which is shown in FIG. As shown in the figure, the screen display portion is overlapped and cut and displayed so that the central axis vector becomes horizontal. The specific means is to extract the azimuth vector from the third embodiment.
Otherwise, the same as in Example 1 or Example 2 except for the above.

Also in this case, the central axis vector can be displayed not only horizontally but also vertically or at any other angle to display the map. Further, the position control by the central axis vector may be switched to the position control by the azimuth vector as necessary.

Example 6. This embodiment is for "displaying a map with adjacent display", and uses a means for connecting a plurality of maps. Using the basic intercept vector,
A process of connecting and displaying map images along the central axis vector will be described with reference to the drawings. Here, an example will be described in which a map is displayed in parallel with the central axis vector to combine them. It is most effective to display a map of a road, railroad, etc. horizontally because it is very easy to see, but it can also be displayed vertically or at any other angle depending on the setting as described in the first embodiment.

(1) A map to be displayed is designated and displayed on the screen. (Fig. 25) (2) Display center P near the section connected to the adjacent map
Is specified. (FIG. 25) (3) The central axis vector 21 closest to the display center P is searched. The central axis vector 21 of FIG. 25 is searched. (4) Center axis vector 2 closest to the retrieved display center
The inclination of 1 is the inclination of the map. The inclination of the central axis vector 21 closest to the display center P in FIG. 25 is the inclination of the map. (Although not shown, the inclination from the horizontal is θ.) (5) The intercept vector 23 near the display center P is extracted from the fourth storage means. (Figure 25)

(6) A screen display rectangle connected by the intercept vector is obtained. (FIG. 26). The screen display rectangle to be displayed is calculated from the center point and the inclination (angle θ) of the map. The screen display rectangle of FIG.
Coordinates obtained by rotating the map (angle θ) are obtained.
If the coordinates after rotation are Q1, Q2, Q3, Q4, and the center coordinates (px, py) are the display rectangle size (2wx, 2wy), the coordinates before rotation are P1 (px + wx, py + wy), P2 (px + wx, py-wy) P3 (px-wx, py-wy), P4 (px-wx, py + wy) The coordinates after the θ angle rotation are: Q1 (px + wx * cosθ-wy * sinθ, py + wx * sinθ + wy
* Cosθ) Q2 (px + wx * cosθ + wy * sinθ, py + wx * sinθ−wy
* Cosθ) Q3 (px-wx * cosθ + wy * sinθ, py-wx * sinθ-wy
* Cosθ) Q4 (px-wx * cosθ-wy * sinθ, py-wx * sinθ + wy
* Cos θ) (Figure 27)

(7) The center (px, py) of the screen display is moved in parallel so as to match the display center P on the map image, and the coordinates of the display screen are obtained. (FIG. 28) (8) Calculate the screen display part (trapezoid) on the left side of the intercept vector. (FIG. 29) Coordinates at which the intercept vector for calculating the intersection of Q1, Q4 straight lines and the intercept vector passes, S1 (x1, y1), S2 (x2, y2) Equation of a straight line passing through two points y = Ax + B: A = (Y1-y2) / (x1-x2): B = (x2y1-x1y2) / (x2-x1)

Intersection with the display rectangle after rotation Intersection line: ya = Ax + B Top line: yb = Cx + D Intersection coordinates C1 C1 (x, y) = ((D-B) / (A-C), (BC-
AD) / (CA)) is calculated. Similarly, the intersection C2 between the straight lines Q2 and Q3 and the intercept vector is calculated. Screen display rectangle (display part)
Screen display rectangle (trapezoid) surrounded by and the intersection coordinates
To get

(9) A rectangle that circumscribes the screen display rectangle is calculated, and the map image data in this rectangle is transcribed.
(FIG. 30) Only the rectangular portion is transcribed from the map image data 12 on the memory to another location on the memory. (10) The transferred map image data is rotated according to the inclination (angle θ) between the center point and the map. (Fig. 3
1) (11) The map rectangle to be displayed is extracted and transcribed. Figure 3
The hatched part of 1 is transcribed. (12) Clear the right side in the direction of the intercept vector to the display end (fill with 0) (fill with 0) the hatching area in FIG.

(13) The intercept vector table 31 of FIG.
From, the segment vector on the adjacent map corresponding to the segment is searched and extracted. (FIG. 33) (14) Extract the map image data 13 of the adjacent map corresponding to the extracted segment vector of the adjacent map from the first storage means. (Extracted on memory) (15) A screen display quadrangle (trapezoid) on the linked intercept vector side is calculated from the slope and coordinates of the intercept vector.
(FIG. 34) The section side display quadrangle (trapezoid) is changed from the state of FIG.
The coordinates (on the lower left corner as the origin) on the map page are calculated by the rotation processing and movement processing of. FIG. 33 is a page (frame) of map image data for calculating a display rectangle on an adjacent map from the intercept vector in FIG. 29, and is not actually filled with the map image data 13. Further, FIG. 34 is a diagram showing a position in a state where the map image data 13 is actually stored, and is not filled with the map image data 13 but for coordinate calculation for obtaining a display quadrangle (trapezoid). It shows the shape of. (16) Obtain the circumscribed rectangle of the map synthesis part (section side display quadrangle). (FIG. 35) Map image data 13 on the memory extracted in (14)
The map image data 13 of the circumscribed rectangle portion is extracted from and is transferred to another location on the memory. (17) Transfer the circumscribed rectangle map image data. (Fig. 35)

(18) The transferred map image data is rotated according to the inclination of the adjacent map. (FIG. 36) As shown in FIG. 36, the inclination of the intercept vector on the display screen (FIG. 33) and the inclination of the intercept vector on the map image (FIG. 3)
Rotate the difference of 4). (19) Obtain a map display image from the rotated map image data. The hatching area in FIG. 37 is the display rectangle.

(20) Clear (fill with 0) the left side of the adjacent intercept vector (the part on the side opposite to the center point of the intercept vector). The hatched area in FIG. 38 is erased. (21) The map image data created in (12) above and the map image data created in (18) above are combined by combining them and displayed as a single screen. (Figure 39)

As described above, the directions of the maps are displayed so that the central axis vector is horizontal, and the maps are connected,
Although it is very easy to see in the case of road / rail maps, this direction can be displayed at a desired angle such as vertical or another angle by setting. Also, (1) to (21)
It seems that there are many processing means up to this point, but since the actual processing is performed by the computer system described above, it can be performed with almost no waiting time. Further, the order of the processing means (1) to (21) does not necessarily have to be the order. For example,
Although the segment vector is searched in (5), immediately after this, the segment vector of the adjacent map in (13) is searched,
(14) You may search for an adjacent map. Also,
The processing of (13) and (14) may be inserted between (16) and (17).

Example 7. In the second embodiment, the map image data is first rotated so as to be directly cut out in the screen display rectangle, and the means for cutting out the rectangle circumscribing the screen display rectangle is not used. Instead of cutting the rectangle as described above, the map image data may be rotated and cut in the screen display rectangle.

Example 8. In the sixth embodiment, the maps are displayed and connected so that the central axis vector has a predetermined angle (horizontal), but the maps may be displayed in the direction in which the azimuth is designated by using the azimuth vector and the adjacent maps may be connected. . The means for displaying the map in the designated orientation using the orientation vector is the same as the means described in the third or fourth embodiment, and the maps can be linked by applying the means in the sixth embodiment based on the orientation. Therefore, the description in the figure is omitted.

The processing means of this embodiment includes a first storage means for storing a plurality of maps obtained by dividing one map as map image data, and an orientation vector indicating an orientation on the map for each map image data. It has a third storage means for storing, and a fourth storage means for storing a segment vector in which the positions of the segments connecting the adjacent maps are associated with each other,

(1) When a desired map is designated, the designated map image data is extracted from the first storage means and the map is displayed. (2) When the orientation of the designated map is designated, the orientation vector corresponding to the designated orientation is extracted from the third storage means. (3) The coordinates of the rectangle displayed on the screen are calculated, and the calculated rectangle coordinates are rotated so as to match the designated azimuth, and the rotation coordinates are calculated. (4) When the display center on the displayed map is specified, the rotated screen display rectangle is moved and superimposed on the map image data so that the center coordinates of the rotated screen display rectangle overlap the display center of the map image data. .

(5) The intercept vector included in the screen display rectangle on the map image data is extracted. (6) The rotated screen display rectangle on the map image data is divided by the intercept vector, and a rectangle that is circumscribed to the screen display rectangle formed on the opposite side of the map adjacent to this divided portion and has no inclination is formed. Calculate and extract the map image data within this rectangle. (7) The map image data in the extracted rectangle is rotated so that the screen display quadrangle on the map image data in the extracted rectangle becomes the position according to the designated direction. (8) Clear the side where the adjacent maps of the section of the screen display quadrangle in this rotated rectangle are connected.

(9) Extract adjacent map image data from the intercept vector, and obtain a screen display quadrangle for adjacent display from the intercept of the map image data. It circumscribes the screen display rectangle on this map image data, and
Calculate a rectangle without tilt. (10) The map image data in the extracted rectangle is rotated so that the screen display quadrangle in this rectangle is located at a position according to the designated orientation. (11) Clear the side where the adjacent maps of the section of the screen display quadrangle in this rotated rectangle are connected. (12) Display the continuous map by superimposing the remaining clear screen display quadrangle map image data on the sections of both.

The azimuth designated as described above (for example, north)
If the map is displayed in, it will be easy to see because it will always display the map facing north regardless of the bend in the road even if scrolling horizontally. Also, there is no need to check the azimuth. In addition, the map image data is often written so that when a map of A2 size paper is read by an image scanner, the map fits well on A2 size paper regardless of the direction (roads are related to the direction on highways. Not horizontally). When this map is input to the storage means, even if it is randomly input regardless of the direction, it can always be displayed in a fixed direction when displayed.

In this embodiment, the rectangle circumscribing the screen display quadrangle is cut out, but the map image data may be rotated in a predetermined direction and cut out in the screen display quadrangle.

Example 9. In all of the sixth to eighth embodiments, the map is connected by using the intercept vector, and the maps are connected via the intercept vector regardless of the means of the sixth to eighth embodiments. You can do this. That is, as shown in FIG. 40, a means may be used in which the respective intercept vectors of the map image data 12 and the map image data 13 are overlapped and combined.

Example 10. In this embodiment, the central axis vector is scrolled so that it is always horizontal. Figure 4
1 is a diagram in which the maps are connected by the intercept vector in the sixth embodiment. When scrolling from the left side to the right side of the road in this figure, if a mouse or the like is used to indicate, the following is indicated by a bold frame from the current display position. The moving display position of is displayed. At this time, at the current display position, the central axis vector 25 near the center of the screen is displayed.
Is displayed horizontally, but when moving to the moving display position, the CPU next calculates the inclination of the central axis vector 26 that comes near the center of the screen, and eliminates this inclination to make the central axis vector 26 horizontal. Then, the map image data 12 and 13 are rotated according to the horizontal center axis vector 26, and are connected and displayed via the intercept vector.

Since the central axis vector in the vicinity of the central portion of the display screen is always horizontal in this way, when scrolling a map such as a road / railway, the intended place is always located in the center of the screen and the intended place is Because it is horizontal, it is very easy to see. In the conventional horizontal scroll, if there is a bend in the road, the road will go up and down, making it very difficult to see and eyestrain.
There is also the inconvenience that the road is off the screen.

In the above embodiment, the central axis vector is controlled to be horizontal. However, when a vertical angle or a predetermined angle is designated or set, the central axis vector is controlled to be displayed at the predetermined angle. The means for performing this scroll processing is described in the first embodiment.
It can also be applied to the case where only the maps are displayed in association with the central axis vector without connecting the maps in the second embodiment.

Example 11. In this embodiment, the direction vector is always scrolled so as to be the specified direction (for example, north). Even if the map image data is input in various directions, when it is displayed, it can always be displayed in a predetermined direction. Scrolling in the case of connecting the maps via the intercept vector as in Example 8 will be described. Although not shown, when scrolling from the left side to the right side of the road on the screen display based on the direction vector, the mouse is used. When a direction (for example, north) is designated by, etc., when moving from the current display position to the moving display position, the CPU rotates the two map image data so that the map faces the specified direction (upper side of the screen is north), Connect and display the two maps via the intercept vector.

Further, as a modification of this embodiment, when the central axis vector is used, the CPU controls so that the central axis vector always comes near the center of the screen. However, the direction of the central axis vector is not constant as in the tenth embodiment. Therefore, while keeping the upper part of the map in the north direction, the object such as the road comes to the center of the screen, so even if there is a bend in the road,
The road does not go up and down on the screen, making it very easy to see. In addition, the road does not come off the screen.

This scroll processing means can also be applied to the case where the maps are not displayed in the third and fourth embodiments, but the directions are kept constant by the azimuth vector.

Example 12. In this embodiment, when the screen is scrolled, the processing is simplified and high-speed scrolling is performed. When moving the display position (scroll display), instead of creating screen data each time it is displayed, it is divided into a fixed part (common part) to reuse the map and a supplemental part (additional part) accompanying movement, Fixed part (common part)
Uses the currently displayed map image data,
The supplementary portion (additional portion) is read out and a composite display of the map is performed.

In FIG. 42, when moving from the current display position to the moving display position, the common portion of the display between the current display position and the moving display position is the map image data at the current display position, and the additional portion is the map. Image data is read and combined. By doing so, the common part is transcribed only by the synthesizing process for only the additional portion, so that the quick process can be performed. This processing is performed on the memory 8 by the CPU 7 of FIG.

Example 13. In this embodiment, when the map image data has different reduction scales, the map is displayed with the same reduction scale. The intercept vector stored in the fourth storage means stores the length of the vector as the length corresponding to the reduction scale of the corresponding map image data. In FIG. 43, when there are map image data 33 and map image data 43 to be connected, if the intercept vectors are 34 and 44, respectively, the intercept vectors 34 and 4
4 is a length (vector amount) according to the reduction scale of the map.
The CPU calculates the length ratio of this intercept vector and enlarges it like the intercept vector 46 and the map image data 45 according to the calculated ratio.

Since the intercept vectors 34 and 46 have the same length, both vectors are overlapped and the map image data 3
Connect 3 and 45. Map image data 4 here
3 is enlarged, but the map image data 33 may be reduced by designating. In addition, a scale factor intermediate between those of the map image data 33 and 43 is specified, and both scales of the map image data are reduced to the specified scale factor.
You may make it expand and connect.

Example 14. This embodiment relates to means for improving the speed of processing such as linking / displaying maps.
As described in the first embodiment, as shown in FIG. 44, the map image data is stored in the magnetic disk (auxiliary recording device 9 in FIG. 1) as a raster image file. The map image data of the map designated from here is once read out to the map buffer (provided in the memory of FIG. 1).
Only the used part is posted from this map buffer as needed. The transcription is posted and processed at another address in the memory of FIG. Then, when the map image data in the map buffer is required, if only the used portion is read out, it is possible to perform very fast processing such as connection and display.

Example 15. In this embodiment, a desired vector is drawn on a connected map and displayed on the map so that the map is more informed and the utility value is improved. In FIG. 45, when there is a communication line or distribution line along the road, the information is drawn and displayed as a vector as shown in the figure. Vector drawing is performed using a mouse or keyboard.

The drawn vector data is stored in the auxiliary recording device 9 of FIG. 1 in association with each map image data. As shown in FIG. 45, when the drawn vector extends over the map image data 12 and 13, it is stored as drawing data corresponding to each map image data.

A means for storing the vector created on the screen in the storage means will be described. (1) The vector data created on the screen calculates an intersection with the intercept vector used for map connection display, and a vector having the intersection is divided by the intercept vector.
The drawing vector divided by the intercept vector is processed in display rectangle units as follows. (2) Calculate the screen display rectangle to be displayed on the screen. (FIG. 46) (The calculation procedure is the same as in the first and sixth embodiments) (3) The coordinates of two screen display rectangles (trapezoids) in which the screen display rectangle is divided by the intercept vector are calculated. (Fig. 47
a) (4) Divide the drawing vector data into screen display quadrangles (trapezoids) divided by sections. (FIG. 47b) (5) Rotate the divided vector coordinates from the corresponding intercept vector. (FIG. 48) Since there is no inclination on the map image data 12 side in FIG. 45, rotation is not performed, and the coordinates of the drawing vector are calculated on the map image data 12. The map image data 13 in FIG. 45 is subjected to rotation processing as shown in FIGS. 47b to 48 to obtain coordinates. (Calculation is performed in the same manner as in Example 6) (6) The obtained drawing vector coordinate data is stored in map page units.

Since the maps are continuously combined and displayed as described above, the map manuscript for which the drawing vector could not be displayed continuously in the past is displayed on the screen of the computer on the arbitrary line on the map manuscript. You can connect and display with. In addition, even in the case of only the display of the first to fifth embodiments in which the maps are not connected, the drawing vector can be easily entered and stored.

Example 16. Although the desired vector is drawn on the map in the fifteenth embodiment, if this vector is, for example, a communication line, it is very useful to obtain the specifications of the communication line.

Corresponding to the drawn vector, the information of the communication line is stored as a file in the auxiliary recording device 9 of FIG. 1 as a storage means. For example, information such as the number of communication lines, cable specifications of communication lines, destinations of communication lines, types of signals communicated for each line, presence / absence of emergency lines, date of installation, and records of accidents / faults, etc. , And specify the corresponding vector with a mouse or the like, the information is displayed on the screen. When there is a large amount of information, a menu of each item related to the above communication is displayed, and by selecting this menu, related information based on the menu can be extracted and displayed. Further, when the corresponding vector is designated by a mouse or the like, the file name storing the related items is displayed, and a desired file can be designated from the file names to display the information.

Example 17 In the above embodiments, the monitor 1 of FIG. 1 has been described as a display device having a rectangular screen. However, even if the screen has a round shape, an elliptical shape, or another screen shape, the screen is displayed as in the present invention. High-speed processing can be performed by cutting the area around the rectangle into a rectangle. The rectangle may be a horizontally long shape or a vertically long shape, and a square includes a rectangle.

Example 18. Although the above-described embodiments are related to maps, the present invention can also be applied to images such as drawings other than maps and other design images. For example, drawings of huge structures such as bridges, drawings of ships, drawings of large Buddha statues, towers, temples, etc., or these design drawings do not fit in one drawing, so divide them into multiple sheets, Provide a section on each drawing to give section information,
The images may be connected via the slice information.

Further, continuous position information is added to these images at desired positions and stored as a database, and the direction of the image is controlled by utilizing the direction of this position information so that the images can be displayed easily. Good. Further, the images may be connected via the slice information and the position of the images may be used to control the direction of the images so that the images are displayed easily.

[0130]

According to claim 1, claim 2, and claim 5 of the present invention, the portion of the designated display position is displayed near the center of the screen, and the display screen is displayed in the direction based on the position information. Since it is displayed, it has the effect of making the map easier to see.

According to claims 3 and 4 of the present invention,
The specified display position is displayed near the center of the screen,
Since the display screen is displayed based on the designated direction, there is an effect that the map is easy to see.

According to claims 6 and 7 of the present invention,
Since the adjacent maps are linked via the segment information, there is an effect that the linked display of the maps with high processing speed becomes possible.

According to claims 8 and 9 of the present invention,
Since the display screen is displayed in the direction based on the position information and the adjacent maps are connected via the section information, it is possible to display the maps with a high processing speed,
Moreover, there is an effect that a map that is easy to see can be obtained.

According to the tenth and eleventh aspects of the present invention, since the maps are displayed in the designated direction and the adjacent maps are connected via the segment information, the maps can be connected at a high processing speed. There is an effect that the map can be displayed and an easy-to-see map can be obtained.

According to the twelfth aspect of the present invention, when the screen is scrolled, the screen is moved along the direction of the line connecting the position information, so that there is an effect that an easy-to-see map is displayed.

According to the thirteenth aspect of the present invention, when the screen is scrolled, the screen is prevented from rotating, and the screen is moved so that the portion on the line connecting the positional information is always near the display center. Since this is done, there is an effect that a map that is easy to see is displayed.

According to the fourteenth aspect of the present invention, the map image data is linear or band-shaped image data over a plurality of map image data such as roads and railways, and the position information is linear or band-shaped image data. Since there are a plurality of vectors that are continuous along, there is an effect that a map can be obtained easily.

According to the fifteenth aspect of the present invention, when connecting the adjacent map image data, it is possible to perform the contraction / enlargement according to the ratio of the lengths of the corresponding intercept vectors so that the contraction scales are the same. Therefore, there is an effect that the map can be displayed regardless of the scale of the map image data.

According to the sixteenth aspect of the present invention, the map image data stored in the first storage means is once read into the memory buffer, and the map image data in this memory buffer is read out in accordance with the map display processing. Since this is done, it has the effect of speeding up the process.

According to the seventeenth aspect of the present invention, when the screen is scrolled, the common part of the screen currently displayed and the screen to be moved is calculated, and the map image data of this common part is moved to the display position after the movement. Since the data is transcribed and scrolling is performed by adding an additional portion other than the above-mentioned common portion, there is an effect that high-speed scrolling can be obtained.

According to the eighteenth aspect of the present invention, there is an effect that additional information can be obtained by performing vector drawing on the maps connected through the sections by the drawing means.

According to the nineteenth aspect of the present invention, when the drawn vector data straddles a slice, the processing means divides the slice by the slice and stores it in the storage means in association with the corresponding map image data. Therefore, there is an effect that the drawing vector can be easily extracted and displayed.

According to the twentieth aspect of the present invention, when the vector drawn on the map displayed on the screen is designated, the related information is displayed on the screen from the storage means, so that the related information can be easily displayed. There is an effect to be obtained.

According to the twenty-first aspect of the present invention, since the images are connected via the slice information, there is an effect that the image connection processing can be performed at high speed.

According to the twenty-second aspect of the present invention, since the image is displayed in the direction based on the direction of the line connecting the position information, there is an effect that an image that is easy to see can be obtained.

According to the twenty-third aspect of the present invention, since the images are connected via the slice information and the connected images are displayed in the direction based on the direction of the line connecting the positional information, it is possible to speed up the operation. There is an effect that images can be connected and an image that is easy to see can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram of a map display device using a computer system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of usage data according to the embodiment of the present invention.

FIG. 3 is a diagram of a intercept vector table according to an embodiment of the present invention.

FIG. 4 is a diagram of a section data file according to an embodiment of the present invention.

FIG. 5 is a diagram showing a flow of processing according to the first embodiment of the present invention.

FIG. 6 is a diagram showing a flow of processing according to the first embodiment of the present invention.

FIG. 7 is a diagram showing a flow of processing according to the first embodiment of the present invention.

FIG. 8 is a diagram showing a flow of processing according to the first embodiment of the present invention.

FIG. 9 is a diagram showing a flow of processing according to the first embodiment of the present invention.

FIG. 10 is a diagram showing a flow of processing according to the first embodiment of the present invention.

FIG. 11 is a diagram showing a flow of processing according to the first embodiment of the present invention.

FIG. 12 is a diagram showing a flow of processing according to the first embodiment of the present invention.

FIG. 13 is a diagram showing a flow of processing according to the second embodiment of the present invention.

FIG. 14 is a diagram showing a flow of processing according to the second embodiment of the present invention.

FIG. 15 is a diagram showing a flow of processing according to the second embodiment of the present invention.

FIG. 16 is a diagram showing a flow of processing according to the second embodiment of the present invention.

FIG. 17 is a diagram showing a flow of processing according to the second embodiment of the present invention.

FIG. 18 is a diagram showing the flow of processing according to the third embodiment of the present invention.

FIG. 19 is a diagram of an azimuth vector table according to the third embodiment of the present invention.

FIG. 20 is a diagram showing the flow of processing according to the third embodiment of the present invention.

FIG. 21 is a diagram showing the flow of processing according to the third embodiment of the present invention.

FIG. 22 is a diagram showing the flow of processing according to the third embodiment of the present invention.

FIG. 23 is a diagram showing a flow of processing according to the fourth embodiment of the present invention.

FIG. 24 is a diagram showing a flow of processing according to the fifth embodiment of the present invention.

FIG. 25 is a diagram showing a flow of processing according to the sixth embodiment of the present invention.

FIG. 26 is a diagram showing the flow of processing according to the sixth embodiment of the present invention.

FIG. 27 is a diagram showing the flow of processing according to the sixth embodiment of the present invention.

FIG. 28 is a diagram showing a flow of processing according to the sixth embodiment of the present invention.

FIG. 29 is a diagram showing the flow of processing according to the sixth embodiment of the present invention.

FIG. 30 is a diagram showing the flow of processing according to the sixth embodiment of the present invention.

FIG. 31 is a diagram showing the flow of processing according to the sixth embodiment of the present invention.

FIG. 32 is a diagram showing a flow of processing according to the sixth embodiment of the present invention.

FIG. 33 is a diagram showing a flow of processing according to the sixth embodiment of the present invention.

FIG. 34 is a diagram showing a flow of processing according to the sixth embodiment of the present invention.

FIG. 35 is a diagram showing a flow of processing according to the sixth embodiment of the present invention.

FIG. 36 is a diagram showing a flow of processing according to the sixth embodiment of the present invention.

FIG. 37 is a diagram showing the flow of processing according to the sixth embodiment of the present invention.

FIG. 38 is a diagram showing a flow of processing according to the sixth embodiment of the present invention.

FIG. 39 is a diagram showing the flow of processing according to the sixth embodiment of the present invention.

FIG. 40 is a diagram showing the flow of processing according to the ninth embodiment of the present invention.

FIG. 41 is a diagram showing the flow of processing according to the tenth embodiment of the present invention.

FIG. 42 is a diagram showing the flow of processing according to the eleventh embodiment of the present invention.

FIG. 43 is a diagram showing the flow of processing according to embodiment 13 of the present invention.

FIG. 44 is a diagram showing a flow of processing according to the fourteenth embodiment of the present invention.

FIG. 45 is a diagram showing the flow of processing according to the fifteenth embodiment of the present invention.

FIG. 46 is a diagram showing the flow of processing according to the fifteenth embodiment of the present invention.

FIG. 47 is a diagram showing a flow of processing according to the fifteenth embodiment of the present invention.

FIG. 48 is a diagram showing the flow of processing according to the fifteenth embodiment of the present invention.

FIG. 49 is a block diagram of a conventional map search device.

FIG. 50 is a diagram showing a relationship between map information and vector information of a conventional map search device.

[Explanation of symbols]

1 monitor, 2 magnetic disk device, 3 image processor, 4 optical disk device, 5 keyboard, 6 image scanner, 8 memory, 9 auxiliary recording device, 1
1, 12, 13, 33, 43, 45 Map image data, 15 Display center P, 21, 25, 26 Central axis vector, 22 Direction vector, 23 Intersection vector data, 31 Intersection vector table, 34, 44, 46
Intercept vector.

Claims (23)

[Claims] 1. A system comprising a CPU, an input device, a storage device, and a display monitor, wherein a first storage means for storing each of a plurality of maps as map image data, and each map image data. Second storage means for storing, as position information representing continuous positions on a predetermined line on each map, and when a desired map is designated, the designated map image data is extracted from the first storage means and displayed. When the first display means and the display center of the displayed map are designated, the position information in the vicinity of the designated display center is extracted from the second storage means and the line connecting the position information is extracted. A direction is recognized, the extracted map image data is rotated so that the recognized direction becomes a predetermined angle, and the map of the specified display center is specified from the rotated map image data. Map display device characterized by comprising a second display means for displaying. 2. The second display means according to claim 1, when the display center of the displayed map is designated, a means for recognizing the direction of a line connecting positional information of the designated neighborhood is displayed on the screen. A means for calculating the coordinates of the rectangle and rotating the calculated rectangle coordinates so as to match the recognized inclination of the line direction, and calculating the rotation coordinates thereof. The center coordinates of the rotated screen display rectangle are the display centers of the map image data. Means for moving and superimposing the rotated screen display rectangle on the map image data so as to be overlapped with, and circumscribing the rotated screen display rectangle on the map image data, and calculating a non-tilted rectangle. , Means for extracting the map image data in this rectangle, so that the tilt of the rotated screen display rectangle on the extracted rectangle map image data is eliminated. Extracted rectangle means for rotating the map image data, the map display device which is characterized in that those having a means for displaying the screen display rectangular portion of the map image data this rotation. 3. A system comprising a CPU, an input device, a storage device, and a display monitor, wherein the first storage means stores a plurality of maps as map image data, and each map image data. The third storage means for storing the orientation information indicating the orientation on the map for each and a desired map are designated, and when the orientation of the designated map is designated, map image data corresponding to the designated map is obtained. While extracting from the first storage means, the orientation information of the specified map is extracted from the third storage means,
A map display device comprising: a display unit configured to rotate and display the extracted map image data according to the extracted orientation. 4. The display means according to claim 3, wherein when a desired map is designated, the designated map image data is extracted from the first storage means and displayed, and the display center of the displayed map is displayed. When the orientation of the designated map is designated, the map image data corresponding to the designated map is extracted from the first storage means, and the orientation information of the designated map is stored in the third storage. Means for extracting from the means, means for calculating the coordinates of a rectangle to be displayed on the screen, means for rotating the calculated rectangle coordinates so as to match the specified orientation, and calculating rotation coordinates thereof, center coordinates of the rotated screen display rectangle Means for moving and superimposing the rotated screen display rectangle on the map image data so that is overlapped with the display center of the map image data, A means for circumscribing the rotated screen display rectangle on the image data, calculating a rectangle without inclination, and extracting map image data in this rectangle, the above rotation on the map image data in this extracted rectangle Means for rotating the extracted rectangular map image data so that the screen display rectangle becomes a position in accordance with the specified orientation, and means for displaying the screen display rectangle portion of the rotated map image data. A map display device characterized by being present. 5. A system comprising a CPU, an input device, a storage device, and a display monitor, wherein the first storage means stores a plurality of maps as map image data, and each map image data. Second storage means for storing as position information representing continuous positions on a predetermined line on each map, and third storage means for storing orientation information indicating the orientation on the map for each map image data, When a desired map is designated, the designated map image data is extracted from the first storage means and displayed, and the display center of the displayed map is designated. The position information in the vicinity is extracted from the second storage means, the direction of the line connecting the position information is recognized, and the extracted map image is arranged so that the recognized direction becomes a predetermined angle. The processing means for rotating the data and the map image data corresponding to the extracted position information are displayed so as to come to the center of the screen, and the orientation information corresponding to this map image data is designated from the third storage means. And a second display means for extracting the azimuth information corresponding to the map image data and displaying the azimuth. 6. A system comprising a CPU, an input device, a storage device, and a display monitor, wherein the first storage means stores a plurality of maps obtained by dividing one map as map image data. And a fourth storage unit for storing slice information in which the positions of slices connecting adjacent maps are associated with each other, and a plurality of desired mutually adjacent map image data are extracted from the first storage unit, A piece of map information is extracted from the fourth storage means, the plurality of pieces of map image data adjacent to each other are connected to each other through the extracted pieces, and the connected map image data is displayed. A map display device comprising a connecting means. 7. The map connecting means according to claim 6, wherein when a desired map is designated, the designated map image data is extracted from the first storage means, and a segment corresponding to the extracted map image data. Means for extracting information from the fourth storage means, and extracting adjacent map image data from the first storage means from the extracted slice information; connecting the extracted map image data based on the slice information; A map display device having means for displaying the linked map image data. 8. A first storage means in a system comprising a CPU, an input device, a storage device, and a display monitor, each storing a plurality of maps obtained by dividing one map as map image data. And second storage means for storing, for each map image data, position information indicating a continuous position on a predetermined line on the map, and section information in which the position of the section connecting adjacent maps is stored. When a desired storage map is designated, a fourth storage means for displaying the designated map image data is extracted from the first storage means and displayed, and a display center on the displayed map is designated. The position information near the designated display center is extracted from the second storage means, and the direction of the line connecting the position information is recognized,
By means for rotating the extracted map image data so that the recognized direction becomes a predetermined angle, and the designation of the display center on the displayed map, the designated display center is used as a display screen. Means for extracting the section information in the fourth storage means, means for extracting adjacent map image data based on the extracted section information, and the adjacent map extracted for the rotated map image data. A map display device, comprising means for connecting a map with image data through the slice information and displaying a map as the display center. 9. A system comprising a CPU, an input device, a storage device, and a display monitor, and first storage means for storing a plurality of maps obtained by dividing one map as map image data. And second storage means for storing, for each map image data, position information indicating a continuous position on a predetermined line on the map, and section information in which the position of the section connecting adjacent maps is stored. Included in the screen display rectangle on the map image data is a fourth storage means, a display means for extracting and displaying the designated map image data from the first storage means when a desired map is designated. A means for extracting the segment information, a means for recognizing the direction of the line connecting the positional information of the designated neighborhood when the display center on the displayed map is designated, and a rectangle displayed on the screen. Means for calculating the coordinates of, and rotating the calculated rectangular coordinates so as to match the inclination of the recognized direction, and calculating the rotated coordinates, and the center coordinates of the rotated screen display rectangle are set to the display center of the map image data. A means for moving and superimposing the rotated screen display rectangle on the map image data so as to overlap with each other, and dividing the rotated screen display rectangle on the map image data by the section information, and by the divided portion. It circumscribes the screen display rectangle formed on the opposite side of the adjacent map,
A means for calculating a rectangle without inclination and extracting map image data in this rectangle, and a map in the extracted rectangle so that the inclination of the screen display rectangle on the map image data in the extracted rectangle is eliminated A means for rotating the image data, a means for clearing the side of the section of the screen display quadrangle in the rotated rectangle to which the adjacent map is connected, and an adjacent map image data is extracted from the section information, A means for obtaining a screen display quadrangle to be displayed adjacently from a section of the map image data, a means for circumscribing the screen display quadrangle on the map image data, and a rectangle without inclination, and a means for calculating a rectangle within this rectangle. A means for rotating the map image data in the rectangle so that the screen display quadrangle is not inclined, and a means for rotating the map image data in the rectangle. Means for clearing the side of the section of the screen display quadrangle to which the adjacent maps are connected, and means for displaying the continuous map by superimposing the cleared map image data of the screen display quadrangle on both sections. A map display device comprising: 10. A CPU, an input device, a storage device,
In a system including a display monitor, a first storage means for storing a plurality of maps as map image data, and a third storage means for storing orientation information indicating an orientation on the map for each map image data. A storage means, a fourth storage means for storing slice information in which the positions of slices connecting adjacent maps are stored in correspondence with each other, and a desired map is designated, and the orientation of the designated map is designated. Map image data corresponding to the designated map is extracted from the first storage means, and orientation information of the designated map is extracted from the third storage means,
Display means adapted to display the extracted map image data according to the extracted orientation, and section information corresponding to the displayed map image data is extracted from the fourth storage means, and the section information is extracted from the extracted section information. The map image data to be extracted is extracted from the first storage means, the extracted map image data is connected based on the section information, and the map connection means for displaying the connected map image data is provided. Map display device. 11. A CPU, an input device, a storage device,
In a system including a display monitor, a first storage means for storing a plurality of maps obtained by dividing one map as map image data, and direction information indicating a direction on the map for each map image data. And a fourth storage means for storing the segment information in which the positions of the segments connecting the adjacent maps are associated with each other, and when the desired map is designated, the designated map image data is stored. A display means for extracting and displaying from the first storage means, and a means for extracting the azimuth information corresponding to the designated azimuth from the third storage means when the azimuth of the designated map is designated, on the screen. A means for calculating the coordinates of the rectangle to be displayed, rotating the calculated rectangle coordinates so as to match the specified orientation, and calculating the rotation coordinates, and pointing the display center on the displayed map. Then, the rotated screen display rectangle is moved onto the map image data so that the center coordinates of the rotated screen display rectangle overlap the display center of the map image data. Means for extracting the segment information included in the screen display rectangle, and the rotated screen display rectangle on the map image data is divided by the segment information, and the divided portion is formed on the opposite side of the adjacent map. Circumscribes the displayed screen rectangle,
Also, a means for calculating a rectangle without inclination and extracting map image data in this rectangle, and a method for adjusting the screen display rectangle on the map image data in the extracted rectangle to a position according to the specified direction. Means for rotating the map image data in the extracted rectangle; means for clearing the side of the section of the screen display quadrangle in the rotated rectangle to which the adjacent maps are connected; and an adjacent map from the section information. A means for extracting the image data and obtaining a screen display quadrangle to be displayed adjacently from the section of the map image data, and a rectangle circumscribing the screen display quadrangle on the map image data and having no inclination. Means and a map image in the extracted rectangle so that the screen display rectangle in the rectangle is located according to the specified orientation. The means for rotating the page data, the means for clearing the side of the section of the screen display quadrangle in the rotated rectangle where the adjacent map is connected, and the map image data for the remaining remaining screen display quadrangle. And a means for displaying a continuous map by superimposing the slices on each other. 12. The scroll processing means according to any one of claims 1, 2, 5, 8 and 9, wherein when the screen is scrolled, scroll processing means is provided for moving the screen along a direction of a line connecting positional information. A map display device. 13. The screen according to any one of claims 1, 2, 5, 8 and 9, wherein when the screen is scrolled, the screen is prevented from rotating, and the position information is always provided in the vicinity of the display center. A map display device comprising scroll processing means for moving a screen so that a portion on a line connecting the lines comes. 14. Claims 1, 2, 5, 8, 9, 12, 1
In any one of 3 above, the map image data is linear or strip image data over a plurality of map image data such as roads and railways, and the position information is in line with the linear or strip image data. A map display device comprising a plurality of continuous vectors. 15. The intercept information according to claim 6, wherein the intercept information stored in the fourth storage means is a intercept vector, and the length of the intercept vector is determined according to the reduced scale of the corresponding map image data. When connecting adjacent map image data, the map is characterized by having a connecting means for connecting and contracting by reducing and enlarging according to the ratio of the lengths of the corresponding slice information. Display device. 16. The map image data according to claim 1, wherein a memory buffer is provided, and the map image data stored in the first storage means is temporarily read into the memory buffer, and the map image data on the memory buffer is read. A map display device, characterized in that a means for reading out the data according to the processing of the map display is provided. 17. The method according to claim 1, wherein when the screen is scrolled, a common part of the screen currently displayed and the screen to be moved is calculated, and the map image data of the common part is moved. The map display device is provided with a scroll processing unit that is adapted to perform the scrolling to the display position of, and to add an additional portion other than the common portion to scroll. 18. The map display device according to claim 6, further comprising vector drawing means for carrying out vector drawing on the maps connected through the sections. 19. The method according to claim 18, further comprising a fifth storage means for storing the drawn vector data in association with the corresponding map image data, and when the drawn vector data straddles a segment, divides the segment by the segment. A map display device is further provided with processing means for storing the fifth storage means in association with the corresponding map image data. 20. The method according to claim 18, wherein a sixth storage means for storing information related to the drawn vector is provided and the drawn vector is designated on the map displayed on the screen. 2. A map display device comprising display means for displaying relevant information on the screen from the storage means. 21. A database that stores images that are connected to each other as image data, and a database that stores slice information that associates the positions of slices that connect adjacent images to each other are displayed from the database. While extracting the image,
An image processing method, wherein slice information corresponding to this image is extracted, and the images are connected via the slice information. 22. A database which stores image data of images to be connected to each other, and a database which stores position information indicating continuous positions on a predetermined line in the image for each image data, While extracting the image to display from the database,
When the position information corresponding to this image is extracted and the image of the image data is displayed, the direction of the line connecting the position information is determined, and the image is displayed in the direction based on this determination direction. An image processing method characterized by: 23. A database that stores image data of images that are connected to each other, a database that stores slice information that associates positions of slices that connect adjacent images, and an image within each image data. And a database that stores position information that represents consecutive positions on a predetermined line, and extracts an image to be displayed from the database,
Extracting the slice information and position information corresponding to this image, and connecting the images via the slice information,
An image processing method, characterized in that a direction of a line connecting the position information on the connected image is determined, and the connected image is displayed in a direction based on the determination direction.