JP2004053889A - Method and system for displaying map information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and system for displaying map information capable of simply displaying various map informations at user's request and capable of accurately grasping the matched relation between map informations. <P>SOLUTION: The system comprises a map information accumulating device which stores various map informations, a position designating device which designates a position, a selecting device which selects one or a plurality of map informations to be displayed from map informations including the above designated position coordinates, a device for displaying the selected map informations, a mark putting device which puts a mark on a point or area on the map informations, a coordinate transforming device which transforms the marked position coordinates to coordinates which indicate the same position on another map information, and a corresponding mark putting device which puts a corresponding mark on the above another map information in accordance with the transformed coordinates. A mark is put on a selected point or area on the above displayed map informations, a similar corresponding mark is put on a position corresponding to the above mark on another map information, and a landmark corresponding to the mark is displayed as character information. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a display method and a system for displaying various types of map information including land information, topographic information, and geographic information.
[0002]
[Prior art]
When investigating land information such as land use form, topography and ground condition, various map information is required. For example, in the real estate business, it is necessary to grasp in detail the information of the land to be bought and sold, that is, the topography of the land, the use form of the land in the past, the ground condition of the planned construction site, and the like.
In the past, such map information was obtained from various directions to search for a required range. However, the work of collecting map information required from various map information was time-consuming, costly, and extremely difficult. When collecting a plurality of types of map information, particularly when investigating past land use situations, it takes a long time to collect materials, which is a difficult task for ordinary users.
[0003]
Therefore, a map display device capable of displaying a map of a specific age as required is disclosed in JP-A-2002-90157.
In this map display device, the age information selected by the user from the age selection screen shown on the display unit is read from the map information storage unit, and rectangular range information is obtained from the old map information read by the map management unit. The information is cut out and supplied to the map drawing unit, and the map information is displayed on the display unit. Since the map information displayed on the display unit is switchable, it can be appropriately displayed according to a user's request.
[0004]
In Japanese Patent Application Laid-Open No. 2002-156899, a current map database, an old map database, a display means, and a current map based on the current map database and an old map based on the old map database are both displayed at the same point. Display processing means for displaying on the display means at the same scale or simultaneously at the same scale, thereby providing a map display device, whereby the current position is clearly compared with the case of displaying only the old map. It is possible to grasp the difference between the road and the city area between the present and the age of the old map.
[0005]
[Problems to be solved by the invention]
However, in the above-mentioned conventional technology, since only the display of the map information by age is supported, when other map information such as a land use map or an active fault map is required as in the case of land appraisal, for example, Not suitable. Further, in the conventional technology, the old map and the current map only display the same range at the same scale, and it is difficult to accurately grasp the position on the old map corresponding to the current position, and It is unclear what the landmark corresponding to the current location corresponds to on the old map, and it is difficult to accurately grasp changes in the land.
In view of the problems of the related art, the present invention can easily display various kinds of map information according to a user's request, and can accurately grasp a correspondence relationship between respective map information and a map information display method. The purpose is to provide a system.
[0006]
[Means for Solving the Problems]
Then, the present invention solves such a problem, and the invention of claim 1
Old map of each age, modern map, accumulate a plurality of various map information including land condition map, simultaneously or multiple map information selected from the map information including the position specified according to the user's request It is characterized by being displayed hierarchically.
According to this invention, since various map information can be easily provided, it is possible to retroactively investigate the land use situation, the possibility of disaster, the stability of the ground, etc., and evaluate and appraise the land. It can be done easily. That is, it is possible to easily obtain information necessary for constructing a building, such as the possibility of soil contamination in a land used as a factory in the past.
[0007]
The display of the map information may be performed by dividing the display screen and displaying a plurality of pieces of map information at the same time, or by selectively displaying one or several pieces of map information from among those hierarchically selectable. Good.
Further, it is preferable that the map information is configured to be able to be added and deleted, and it is preferable to update new map information as needed.
[0008]
Further, the invention according to claim 2 provides an index to a selected point or area in the displayed map information, and at the same time, provides a corresponding index to a position corresponding to the index in other map information, The landmark present at each index and corresponding index position is displayed as character information.
According to this, the index assigned to the point or area selected from the displayed map information is displayed as the corresponding index in the same position in other map information, so that the past selected point or area can be accurately grasped. Since landmarks present at the respective index positions are displayed as character information, required land use situations can be grasped easily and in detail.
The landmark refers to a prominent natural or artificial target on the ground or near the surface of the earth, such as a building, a building, a park, a school, or a road.
[0009]
The invention according to claims 3 to 5 is a map information storage means for storing a plurality of various types of map information including an old map, a modern map, and a land condition map by age,
Position designation means for designating a position;
Selecting means for selecting one or more map information to be displayed from the map information including the designated position coordinates from the map information storage means;
Display means for displaying the selected map information,
The map information selected by the selection means is displayed simultaneously or hierarchically.
[0010]
The invention according to claim 4, wherein an index assigning means for assigning an index to a point or an area on the displayed map information, and a coordinate conversion means for converting the index position coordinates into coordinates indicating the same position in other map information. And a corresponding index providing means for providing a corresponding index on the other map information based on the converted coordinates,
An index is assigned to a point or area selected from the displayed map information, and at the same time, a similar corresponding index is assigned to a position corresponding to the index on other map information.
Further, it is preferable to provide a land surface display means for displaying landmarks present at the position of the index and the corresponding index as character information.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be illustratively described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified, and are merely illustrative examples. Not just.
FIG. 1 is a diagram showing a display screen of a map display system according to an embodiment of the present invention, FIGS. 2 and 3 are diagrams showing display screens of a map display system according to another embodiment of FIG. 1, and FIG. FIG. 5 is a block diagram showing the overall configuration of the map display system according to the embodiment, and FIG. 5 is a flowchart of the map display system according to the embodiment of the present invention.
[0012]
First, the overall configuration of the map display system according to the present embodiment will be described with reference to FIG. Reference numeral 10 denotes a display unit for displaying map information such as a liquid crystal display or a CRT display, 11 denotes a central processing unit for performing arithmetic processing and control by various programs, 12 denotes an input unit such as a keyboard and a touch panel display, and 13 stores various map information. The map information storage unit 14 is a program unit that stores a program for calculation in the central processing unit 11.
[0013]
In such a map display system, a signal input from the input unit 12 is transmitted to the central processing unit 11, necessary map information is transmitted from the map information storage unit 13, and a program for processing the information is stored in the program. The map information is read from the unit 14 and requested map information is displayed on the display unit 10 via the central processing unit 11.
Also, new map information and updated map information are input from the input unit 12 and converted into an appropriate state by the central processing unit 11, and then stored in the map information storage unit 13, or the stored map information is stored in the map information storage unit 13. It is also possible to delete it.
[0014]
The map information location storage unit 13 stores various types of map information such as old map data 13a, current map data 13b, land use map data 13c, and aerial photograph data 13d of a plurality of ages. Multiple types of data such as active fault maps, numerical maps, soil maps, shading maps, land classification maps, geological maps, terrain maps, cadastral maps, population maps, and vegetation maps can be stored.
The program section 14 mainly stores a range setting program 14a, a map selection program 14b, a coordinate conversion program 14c, an index assignment program 14d, a corresponding index assignment program 14e, and an index character display program 14f.
[0015]
The flow of the map display means will be described with reference to FIG. 5. First, a large-scale index map is displayed on the display unit 10 (S1), and a position range required by the user is selected from the index map (S2). This may be selected by a cursor moving on the index map, or may be selected by touching the screen if it is a touch panel. The position may be selected by inputting latitude and longitude, an address, and the like. Next, the scale of the requested map information and the display range are set by the range setting means 14a (S3).
[0016]
The type of map information for which the range has been set is displayed as a heading on the framed screen, and when the type of map information to be displayed from the heading is selected by the map selection means 14b (S4), the selected map information is displayed on the display unit 10. Is displayed on the screen (S5). Further, when it is desired to grasp the history of the land at a predetermined place in more detail, an index is assigned to the displayed map information by the index assigning program 14d (S6). This may be a method of pointing a position on a map with a cursor or the like as in the above-described position selection (S2), or a method of inputting place information indicating latitude and longitude or an address.
[0017]
Next, the coordinate conversion program 14c converts the provided index coordinates into coordinates corresponding to the same position (same longitude and latitude) of other map information (that is, map information other than the map information with the added index). Conversion is performed (S7). Then, based on the converted coordinates, the corresponding index is assigned to other map information by the corresponding index assigning means 14e (S8). Further, landmarks present at the respective index positions are displayed as character information on the map information (S9). At this time, in the case of map information having different ages, the landmarks existing in the corresponding ages are presented by the index character display means 14f.
As a result, various map information can be easily provided to the user, and the necessary land use status can be easily and in detail grasped.
[0018]
FIGS. 1 to 3 show a display screen 10 of a map display system according to an embodiment of the present invention. FIG. 1A shows a numerical map 20 provided with a position designation unit 21, which is displayed by the position designation unit 21. The current numerical map 20 is displayed by specifying the range of the map information, and the map is switched to the map information required by the user by the map selecting means 23 shown in FIG. The numerical map of 1980 displayed in FIG. 1 (b) shows the same range as the current numerical map, and it is more preferable to include a means for selecting a scale.
The position specifying means may display a large-scale index map (not shown) on the screen 10 and specify the position using a cursor, a touch panel, or the like. When displaying the map information, the screen 10 may be divided and a plurality of map information may be displayed adjacent to each other, or may be displayed in a layered manner in which the map information is displayed in an overlapping manner.
[0019]
FIG. 2 is a display screen in which the index 25 and landmark character information 26 are superimposed and displayed on the map information. (A) is a current digital map, (b) is a digital map of 1993, and (c) is 1980. 3 shows a numerical map.
In this embodiment, an index 25 is assigned by the index assigning means 14d to the position coordinates designated by the cursor 30 from the current numerical map 20 displayed by the position designating means 21, and the position is assigned to the index 25 of the current digital map 20. Is displayed as character information 26a.
[0020]
At the time point when the index 25 is assigned, a similar corresponding index 25 is assigned to the other map information 22 and 24 at the same longitude and latitude. This is configured so that the position coordinates of the index 25 are coordinate-converted by the coordinate conversion means 14c to be the same position in other map information, and the corresponding index 25 is assigned based on the converted coordinates. . That is, when the index 25 is provided, the corresponding index 25 is provided at the same position even when switching to another type of map information, and the corresponding index is displayed over the map information.
[0021]
Further, landmarks existing in the corresponding age are read out from the position coordinates of the correspondence index 25, and displayed as character information 26b and 26c overlaid on the map information. This can be achieved by linking landmarks existing at the position coordinates to respective position coordinates of each piece of map information. Note that any map information may be used as the map information to which an index is first assigned.
In this way, simply by giving an index to the basic map information, a corresponding index is given to another map information, and it is possible to accurately grasp the position in any of the map information, By displaying the character information of the mark, it is possible to easily determine and appraise the land such as the land use status in each age and each map information.
[0022]
FIG. 3 is a view showing a display unit of another embodiment. In this embodiment, the index is indicated by a frame and the range is shown. As shown in the land use map 29, two pieces of map information are displayed. Thus, in this embodiment, the screen 10 can be divided to display a plurality of map information.
[0023]
Then, a cursor 30 is placed on any one of the displayed map information, in this case, a land use map (current) 28, and an index is attached to an area to be investigated in detail with the cursor 30, and the index 27 is obtained. Are converted into the position coordinates of the index corresponding to the land use map (Showa 30) 29 by the coordinate conversion means 14c, and the corresponding index 27 is added to the land use map 29. Further, it is preferable that the name of the landmark located at each index 27 is read from the map information storage unit 13 and displayed as character information 26d and 26e adjacent to each index 27. At this time, landmarks corresponding to the respective map information are displayed.
[0024]
【The invention's effect】
As described above, according to the present invention, since various map information can be easily provided, the land use situation, the possibility of disaster, the stability of the ground, etc. can be retroactively investigated, and the land Evaluation and appraisal can be easily performed. That is, it is possible to easily obtain information necessary for constructing a building, such as the possibility of soil contamination in a land used as a factory in the past.
Also, since the index assigned to the point or area selected from the displayed map information is displayed as a corresponding index at the same position in other map information, it is possible to accurately grasp the selected point or area in the past, In addition, since landmarks existing at the respective index positions are displayed as character information, required land use conditions can be easily and in detail grasped.
[Brief description of the drawings]
FIG. 1 is a diagram showing a display screen of a map display system according to an embodiment of the present invention.
FIG. 2 is a diagram showing a display screen of a map display system according to another embodiment of the present invention.
FIG. 3 is a diagram when a display screen is divided and used in the map display system according to the embodiment;
FIG. 4 is a block diagram showing an overall configuration of a map display system according to the embodiment of the present invention.
FIG. 5 is a flowchart of the map display system according to the embodiment of the present invention.
Reference Signs List 10 display unit 11 central processing unit 12 input unit 13 map information storage unit 14 program unit 14a range setting means (range setting program)
14b Map selection means (map selection program)
14c Coordinate conversion means (coordinate conversion program)
14d Index assigning means (index assigning program)
14e Correspondence index assignment (correspondence index assignment program)
14f Index character display means (index character display program)
21 Position specifying means 23 Map information selecting means 25, 27 Index display 26a-e Landmark character display

Claims (5)

Old maps of different ages, modern maps, accumulate a plurality of various map information including land condition map, simultaneously or multiple map information selected from the map information including the position specified in accordance with the user's request A map information display method characterized by hierarchical display. At the same time as providing an index to a selected point or area in the displayed map information, a corresponding index is provided to a position corresponding to the index among other map information, and the index is present at each index and corresponding index position. 2. The map information display method according to claim 1, wherein the landmark is displayed as character information. Map information storage means for storing a plurality of various map information including old maps, modern maps, and land condition maps by age;
Position designation means for designating a position;
Selecting means for selecting one or more map information to be displayed from the map information including the designated position coordinates from the map information storage means;
Display means for displaying the selected map information,
A map information display system, wherein the map information selected by the selection means is displayed simultaneously or hierarchically. Index providing means for providing an index to a point or area on the displayed map information, coordinate converting means for converting the index position coordinates into coordinates indicating the same position in other map information, and A corresponding index assigning means for assigning a corresponding index on the other map information based on the other map information,
4. An index is assigned to a point or area selected from the displayed map information, and a similar corresponding index is assigned to a position corresponding to the index on other map information. Described map information display system. 5. The map information display system according to claim 4, further comprising land surface display means for displaying landmarks existing at the position of the index and the corresponding index as character information.

Images