JP2005181866A - Map display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily grasp the positional relationship of desired objects by displaying them on the same screen, without damaging the functions of the maps. <P>SOLUTION: This device has a map information memory 13 for storing maps, each drawn to different scales, an origin selection instruction means to pick up one from among several reference origins on the maps, and an object memory measures 12 for storing the objects related to their origins and their positional relations. When one origin is chosen, it extracts the objects and positional information related to it, obtains their maximum and minimum latitudes/longitudes from the positional information of these objects, and recognizes the size of the area surrounded by them. Further, it sets the scale of the map for displaying the area of this size on a single screen, then reads the map drawn to this scale and displays them on the screen. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a map display device, and more particularly to a map display device capable of easily grasping the positions of a plurality of objects such as a delivery destination and a rental house on a map displayed on a display. It is.

  For example, in the delivery industry, if the location of the delivery destination is unknown or the person in charge of delivery is unfamiliar with the delivery area, the location of the delivery destination is confirmed by comparing the delivery destination name list (address) with a map. I am doing so. By the way, in recent years, with the development of computers, a map with an arbitrary scale factor is displayed on the display, or a map including the destination is displayed on the display using the address or zip code of the destination as a search condition. It is possible to do.

  On the other hand, rental housing can also be searched by computer. Specifically, it is a system that consists of a server that builds a database of rental housing and computer terminals connected via a network. It searches for properties that meet the requirements of those who wish to move in, and details about those properties. It is possible to display information. In particular, the location of each property is shown on a map displayed on the display, thereby facilitating the geographical grasp of the applicant.

  Note that the above-described prior art is a general matter that is naturally understood by those skilled in the art, and the applicant is not particularly aware of any literature suitable for specifying the prior art.

  However, according to the conventional system, it is possible to display a delivery map of a predetermined area on a display or print a delivery map. However, all the delivery destinations that have to be visited can be displayed on one screen or In some cases, it could not be included in a single map. This is because the scale of the map is too large and some delivery destinations protrude from the map of the predetermined area. In such a case, unless a plurality of screens or a plurality of maps are output, the positions of all the delivery destinations cannot be confirmed, and the operation is complicated. In particular, when a plurality of delivery destinations straddle a plurality of maps, it is difficult to easily understand the positional relationship between the delivery destinations, that is, the route in the patrol, and there is a possibility that the patrol cannot be smoothly conducted. . Further, there is a risk that the user departs without knowing that a predetermined delivery destination is out of the map and abandoned the route to the delivery destination.

  On the other hand, when searching for rental housing, a map around the station can be displayed, but the area displayed on one screen is limited, so even if it is only slightly away from the station, the screen can be switched. Sometimes it was necessary. This is also because the scale of the map is too large and a plurality of properties protrude from the map. In such a case, the number of properties displayed on one screen is extremely small, and the prospective tenant may give up searching by the system. Note that if the map scale is reduced, a wider range of maps can be displayed on a single screen, making it possible to see many properties. However, according to this, many properties are concentrated around the station. If this is the case, it will be difficult to individually display information related to those properties (for example, property names), and relatively narrow roads will be omitted, making it difficult to distinguish the location of each property. Become. That is, there is a concern that the original function as a map, that is, the geographical grasp will be lowered.

  Therefore, in view of the above situation, the present invention displays a plurality of objects that need to be displayed on one screen, so that the positional relationship between the objects can be easily achieved without impairing the original function as a map. An object of the present invention is to provide a map display device that can be grasped.

  The map display device according to the present invention is described as follows: “Map information storage means in which a plurality of maps having different scale factors are stored, and a starting point selection for selecting one starting point from a plurality of starting points serving as a reference on the map” One starting point is selected by the pointing means, a plurality of objects associated with the respective starting points, and an object storing means for storing position information including the latitude and longitude thereof as a database, and the starting point selection instructing means. Object extraction means for extracting the plurality of objects relative to the starting point and their position information from the object storing means, position information of the starting point selected by the starting point selection instructing means, and the object From the position information of the object extracted by the extraction means, obtain the maximum maximum latitude and maximum longitude, the minimum minimum latitude and minimum longitude, Area recognition means for recognizing the size of the area surrounded by these latitudes and longitudes, and the map displayed on the display so that the recognized size of the area is displayed on one screen on the display. A scale magnification setting means for setting a scale magnification; a map information display control means for reading out a map of the scale magnification including the area and set by the scale magnification setting means from the map information storage means and displaying the map on the display; It comprises.

  Here, the “object” is a place to be searched. For example, when delivering an article, “delivery destination” corresponds to the object, and when collecting an article, “collection destination”. "Corresponds to the object. In addition, when searching for a rental house to move in, “rental house” corresponds to the object. The map display device can be realized by a single computer, but can also be constructed from a server and a computer terminal connected to the server via a network. In this case, the storage means and the functional means can be realized by a server, and the input means such as a starting point selection instruction means and the output means such as a display can be realized by a computer terminal.

  According to the map display device of the present invention, when one start point is selected and instructed by the start point selection instruction unit, a plurality of objects with respect to the start point and position information on these objects are extracted from the object storage unit. . That is, since a plurality of objects are stored in the object storage unit in association with the starting point, all objects corresponding to the starting point instructed to be selected are extracted. For example, when a selection instruction is given starting from a predetermined station, the object in the area around the station (that is, the object stored in association with the station) and the position information (latitude and longitude) of each object ) After that, the maximum latitude, maximum longitude, minimum latitude, and minimum longitude, which are upper and lower limits in longitude and latitude, are obtained from the position information of the starting point selected and instructed, and these are extracted. Recognize the size of the area surrounded by four latitudes and longitudes. That is, a rectangular area based on the latitude and longitude is set, and the extracted plurality of objects and starting points are all included in this area.

  Further, the scale factor of the map displayed on the display is set so that the size of the recognized area is displayed on one screen on the display. That is, the scale of the map is set so that a map satisfying the size of the area is displayed on one screen. In setting the scale factor, it is preferable to set the scale factor of the plurality of maps stored in the map information storage unit. That is, when a map having the same scale as the scale to be set is stored, the scale of the map is determined as the scale, and when a map having the same scale is not stored, the map is set. A scale closest to the scale to be scaled and smaller than that scale (that can display a wider range) is determined as the scale scale.

  Then, a map including the recognized area and set scale factor is read from the map information storage means and displayed on the display. Thereby, it is possible to display a map including all the plurality of objects and including only necessary portions on one screen of the display.

  By the way, in the map display device of the present invention, “the scale magnification set by the scale magnification setting means, the size of the area recognized by the area recognition means, and the position extracted by the object extraction means” Based on the information, a layer creation means for creating an object display layer showing the arrangement of the plurality of objects, and the object display layer created by the layer creation means is displayed by the map information display control means. And a layer display control means for displaying the image superimposed on the map ”. Here, the background of the object display layer is preferably transparent.

  When this configuration is adopted, an object display layer indicating the arrangement of a plurality of objects is created based on the set scale magnification, the recognized area size, and the extracted position information. Thereby, an area corresponding to the scale of the map is created, and the arrangement position of the object with respect to this area is set based on the position information. That is, an object display layer having the same size as the map and having the object name and the like shown at an appropriate position in the area is created. The created object display layer is displayed so as to overlap the map. This makes it possible to recognize information on the object such as the name of the object on the map.

  Further, when the above configuration is adopted, “the layer creating unit includes a display mode setting unit that changes a display mode related to the object according to the scale magnification set by the scale magnification setting unit”. It is preferable to do. Here, examples of the “display mode” include the length of information to be displayed or the size of characters to be displayed.

  By the way, since the object display layer created by the layer creating means changes depending on the scale magnification, when the scale magnification is small, the amount of information displayed per single area, that is, the information on a plurality of objects is displayed. The amount increases, information about adjacent objects is displayed close to each other and overlapped with each other, and it may be difficult to recognize the information (that is, confirm the position of the object).

  However, if the above configuration is adopted, the length of information to be displayed and the size of characters change according to the scale factor. That is, the smaller the scale magnification (the wider the displayed range), the shorter the information length or the smaller the character size. For this reason, it can suppress that the information regarding a target object overlaps, and can prevent the fall of recognition.

  By the way, in the map display apparatus of the present invention, a configuration can be adopted in which “the name of the delivery destination of the article is the object, and the latitude and longitude indicating the location of the delivery destination are the position information”.

  When this configuration is adopted, all the delivery destinations (for example, delivery destinations in a predetermined area) related to the starting point (eg, a reference station or departure point) are displayed on the map displayed on one screen. For this reason, it is possible to prevent a part of the delivery destination from protruding from the map, and it is possible to easily confirm the positions of all the delivery destinations. Further, the positional relationship between the delivery destinations and the circulation route are always clear.

  Further, in the map display device of the present invention, “the information relating to the rental housing such as an apartment is the object, the latitude and longitude indicating the location of the rental housing are the position information, and the nearest station is the starting point” Can be adopted.

  When this configuration is adopted, all rental houses related to the nearest station (that is, rental houses near the station) are displayed on the map displayed on one screen. For this reason, it is possible to present an appropriate number of properties on one screen, and it is possible to efficiently search for rental housing.

  As described above, the map display device of the present invention can display a map including all of a plurality of objects on one screen, and can easily grasp the position of the object. The positional relationship between each other can be easily understood. For this reason, it becomes possible to perform a search operation, a patrol work, etc. smoothly, and the convenience of a map can be improved further.

  Hereinafter, a map display device according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an explanatory diagram showing the overall configuration of the map display device, FIG. 2 is a block diagram showing the functional configuration of a server in the map display device, and FIG. 3 shows the functional configuration of a computer terminal in the map display device. 4 is a block diagram, FIG. 4 is an explanatory diagram for explaining how to obtain the maximum latitude and the minimum latitude, FIG. 5 is an explanatory diagram showing a process of displaying map information, and FIG. 6 is a process flow in the server It is a flowchart which shows.

  The map display device according to the present embodiment is a system in which a delivery person or the like can confirm the positions of a plurality of delivery destinations on a map displayed on a display. As shown in FIG. 1, the map display device 1 includes a server 2 and a plurality of computer terminals 4 connected to the server 2 via a network 3 (such as the Internet) as a main configuration.

  The server 2 receives instructions from the computer terminal 4 via the network 3 and performs processing according to these instructions. The hardware configuration is the same as a general-purpose computer, the central processing unit (CPU) that controls the main control, the ROM and RAM that store programs and data, and the input to directly input information such as the keyboard and pointing device. A storage device 7 (see FIG. 2) composed of a device, an output device such as a display for retrieving information processed in the server 2, communication means for transmitting and receiving data via the network 3, and a hard disk It has. 2, the communication means is controlled by a communication control means 10 having a receiving means 8 for receiving data from the computer terminal 4 and a transmitting means 9 for transmitting data to the computer terminal 4. ing.

  The storage device 7 of the server 2 includes an object storage unit 12, a map information storage unit 13, and a starting point information storage unit 14 as a functional configuration. The object storage unit 12 stores a starting point (a reference location on the map), a delivery destination of the article, position information thereof, a scheduled delivery date (delivery date), and a delivery order in association with each other. For this reason, when an arbitrary place (for example, a station) in a predetermined area is selected and instructed as a starting point, a delivery destination scheduled to travel in that area is determined, and position information (that is, latitude and longitude) in the delivery destination is determined. The scheduled delivery date and the order of delivery (the order in which a plurality of delivery destinations are circulated) are uniquely determined. Although not shown, the information stored in the object storage unit 12 is updated daily by the manager of the shipping business.

  The map information storage means 13 stores a plurality of maps having different scale magnifications, and here, for example, five types of maps are stored. In addition, since the wide range is displayed on a screen, so that a scale reduction becomes small, while the detailed shape in a map is abbreviate | omitted, the symbol and name which show a building etc. are sparse. Conversely, when the scale magnification is increased, relatively narrow roads and the like are displayed, and many names of buildings are displayed.

  The starting point information storage unit 14 stores information related to the starting point in association with the wide area map so that the user can select and specify a desired starting point. That is, it stores a wide area map (for example, a central area whole area map or a Gifu prefecture whole area map) in which a place that can be selected as a starting point is marked.

  By the way, a program is stored in the server 2, and the program has a functional configuration shown below by causing the CPU to execute the program.

  That is, as shown in FIG. 2, the server 2 includes a starting point recognition unit 15, a search condition recognition unit 16, and a delivery destination extraction unit 17 as a functional configuration for setting a plurality of delivery destinations in a predetermined region. ing. The starting point recognizing means 15 recognizes a starting point (a reference position on the map) selected on the computer terminal 4 and sends the recognized starting point to the delivery destination extracting means 17. The search condition recognizing means 16 recognizes when a search condition such as “delivery date” is inputted at the computer terminal 4, and sends the recognized search condition to the delivery destination extracting means 17. On the other hand, the delivery destination extracting unit 17 extracts the starting point recognized by the starting point recognizing unit 15 and the delivery destination for the search condition recognized by the search condition recognizing unit 16 from the object storage unit 12. For example, when Gifu Station is selected as the starting point and “15-day delivery” is specified as the search condition, a plurality of delivery destinations associated with Gifu Station (for example, delivery destinations in Gifu city and its surrounding areas). ) And all the delivery destinations for which the scheduled delivery date is set to “15 days” are extracted. In addition, as one of the search conditions, a “simple course” suitable for a person in charge who is not accustomed to delivery or a person in charge of short working hours can be selected. Is selected, only the delivery destinations up to a predetermined order (for example, half the normal number) are extracted based on the delivery order stored in the object storage unit 12. Here, the delivery destination extracting means 17 corresponds to the object extracting means of the present invention.

  In addition, the server 2 includes an area recognizing unit 18, a scale setting unit 19, and a map determining unit 20 as functional units for reading out a map with an appropriate scale. The area recognizing means 18 reads out the position information of the delivery destination extracted by the delivery destination extracting means 17 and the position information of the starting point recognized by the starting point recognizing means 15 from the object storage means 12, and all the delivery destinations and starting points are found. The minimum area (rectangular area) to be included is determined. Specifically, the location information of all delivery destinations and starting points are compared with each other, and from among them, the maximum latitude (maximum latitude) and longitude (maximum longitude), and the minimum latitude (minimum latitude) and longitude (minimum longitude) ) And the area surrounded by the range from the minimum latitude to the maximum latitude and the range from the minimum longitude to the maximum longitude is defined as an area. Note that the method for obtaining the maximum value and the minimum value regarding latitude and longitude is not particularly limited, and can be realized by the method shown in FIG. 5, for example.

  Here, a table for storing the minimum and maximum values of latitude coordinates is provided, the latitude at each delivery destination is compared with the data stored in the table, and the latitude to be newly compared is the latitude coordinates. If the minimum value is smaller than the data stored in the table, the minimum value data in the table is replaced with a new latitude. When the latitude to be compared is newly larger than the data stored in the table as the maximum value of the latitude coordinate, the maximum value data in the table is replaced with the new latitude. For example, when the latitude to be compared at the first time is “60”, the second time is “70”, the third time is “50”, and the fourth time is “40”, no data is stored in the table for the first time. Therefore, “60” is stored for both the minimum value and the maximum value, and the second value “70” is larger than the maximum value data “60” in the table, and therefore the maximum value data is “60” to “70”. Is replaced by Further, since the third time “50” is smaller than the minimum value data “60” in the table, the minimum value data is replaced from “60” to “50”. The same applies to the fourth time. In this manner, the maximum latitude and the minimum latitude are finally obtained by repeating the process of updating by comparing with the data stored in the table. The longitude can also be obtained by the same method.

  The scale magnification setting means 19 sets the scale magnification of the map displayed on the display 35 so that the size of the area recognized by the area recognition means 18 is displayed on one screen on the display 35 described later. It is. That is, the scale of the map is set so that a map satisfying the size of the area is displayed on one screen. In particular, when setting the scale factor, the scale factor of the plurality of maps stored in the map information storage unit 13 is set in consideration. That is, when a map having the same scale as the scale to be set is stored, the scale of the map is determined as the scale, and when a map having the same scale is not stored, it is set. A map having a scale closest to the scale magnification and smaller than the scale magnification (which can display a wider range) is searched, and the scale of the map is determined as the scale magnification. As a result, the most appropriate scale magnification is selected from among a plurality of types (for example, five types) of scale magnifications stored in the map information storage unit 13.

  The map determining means 20 reads the map of the scale magnification set by the scale magnification setting means 19 including the area recognized by the area recognition means 18 from the map information storage means 13. A map 47 (see FIG. 5B) read from the map information storage unit 13 includes the starting point recognized by the starting point recognition unit 15 and all of the plurality of delivery destinations extracted by the delivery destination extraction unit 17. This is a map of the area, that is, the area of the area recognized by the area recognition means 18.

  Furthermore, the server 2 includes a layer creating unit 21, a superimposing unit 23, and a display information output unit 24 as functional units for displaying the name of the delivery destination on the map. The layer creation means 21 is based on the scale magnification set by the scale magnification setting means 19, the size of the area recognized by the area recognition means 18, and the delivery destination position information extracted by the delivery destination extraction means 17. The object display layer 46 (see FIG. 5A) showing the arrangement of a plurality of delivery destinations and starting points is created. As a result, an area corresponding to the scale of the map 47 is created, and the delivery destination and the starting position for the area are set based on the position information. In other words, the object display layer 46 having the same size as the map 47 and the name of the delivery destination is shown at an appropriate position in the area is created. Note that the layer creating means 21 has a display mode setting section 22, and the object display becomes smaller as the scale magnification set by the scale magnification setting means 19 becomes smaller (the range displayed on one screen becomes wider). The delivery destination displayed on the layer 46 is reduced in size. For this reason, the scale magnification is reduced, and even if the amount of information displayed per single area, that is, the proportion occupied by the name of the delivery destination increases, the names will not overlap or be too close together, Visibility can be prevented from being impaired. Here, the display mode setting unit 22 corresponds to the display mode setting means of the present invention.

  The superimposing unit 23 displays the object display layer 46 created by the layer creating unit 21 and the map 47 determined by the map determining unit 20 so as to overlap each other, and as shown in FIG. Such a display screen 48 can be generated. The superimposed object display layer 46 and map 47 are transmitted to the computer terminal 4 by the display information output unit 24 via the transmission unit 9. Here, the combination of the map determining means 20 and the display information output means 24 corresponds to the map information display control means of the present invention, and the combination of the superimposing means 23 and the display information output means 24 is the layer display control of the present invention. Corresponds to means.

  The server 2 sends the information stored in the starting point information storage means 14 to the computer terminal 4 via the sending means 9 and is a starting point for displaying a plurality of starting points in a selectable state on the wide area map. An information output means 25 is also provided.

  On the other hand, the computer terminal 4 is a general-purpose computer in which browser software is stored, and includes a central processing unit (CPU) that performs main control and a communication device that transmits and receives data via the network 3. As shown in FIG. 3, the communication apparatus is controlled by a communication control unit 32 having a reception unit 30 and a transmission unit 31. Further, the computer terminal 4 is provided with an input device 33 such as a keyboard and a pointing device, and a display control means 36 for controlling the display 35.

  Furthermore, as a functional configuration, the computer terminal 4 has, as a functional configuration, search information for inputting start point selection instruction means 38 for instructing selection of a desired start point by operating (clicking) the input device 33, and a delivery date as a search condition. An input unit 39 and a print instruction unit 40 for printing a map (including the object display layer 46) displayed on the display 35 are provided. Further, the computer terminal 4 recognizes display information including the start point information recognizing means 41 for recognizing start point information (a wide area map for selecting a start point) transmitted from the server 2, and the object display layer 46 and the map 47. Display information recognition means 42. Each piece of information recognized by the starting point information recognition unit 41 or the display information recognition unit 42 is sent to the display control unit 36 and displayed on the display 35.

  Next, the operation of the map display device 1 of the present embodiment, particularly the processing of the server 2, will be described with reference to FIG. First, when there is an access from any of the computer terminals 4 (YES in step S1), the server 2 outputs the starting point information by the starting point information output means 25 and displays a wide area map from which the starting point can be selected on the display 35 ( Step S2). Thereafter, when one of the starting points is selected and instructed by clicking (YES in step S3), information related to the screen is output so that a screen for inputting a search condition is displayed on the display 35 (step S4). When the search condition is input (YES in step S5), the corresponding delivery destination and its position information are extracted from the object storage means 12 based on the starting point and the search condition (step S6).

  Thereafter, based on the extracted position information and the like, the size of the necessary area is recognized (step S7), and further, the scale factor is determined (step S8), and an appropriate one is selected from the map information storage means 13. The map 47 is read (step S9). On the other hand, the object display layer 46 is created (step S10), the created object display layer 46 is overlaid on the read map 47 (step S11), and the display information is transmitted to the computer terminal 4 (step S11). Step S12). As a result, the display screen 48 shown in FIG.

  As described above, in this example, a map including all of a plurality of delivery destinations can be displayed on one screen. That is, it is possible to prevent part of the delivery destination from protruding from the map. Therefore, the positions of all the delivery destinations can be easily grasped, and the positional relationship between the delivery destinations, that is, the circulation route can be easily understood. Therefore, the convenience of the map is further improved, and it is possible to smoothly perform the patrol using the map.

  Further, in this example, when extracting the delivery destination, it is possible to narrow down by not only the starting point but also the search condition, so that the object storage unit 12 can also function as a unit for managing the delivery work. it can. That is, the application range of the map display device 1 is further widened.

  Furthermore, in this example, since the map 47 of the area including the starting point is displayed, the positional relationship between the shipping destination and the starting point is clarified, and the position of each shipping destination can be grasped based on the starting point. Therefore, the geographical grasp in the whole becomes easy, and the burden on the delivery person can be further reduced. Since the starting point is a selection instruction from a plurality of preset starting points, a starting point that is not stored in the object storage unit 12 may be selected, or the starting point may be hesitant. Absent. In particular, since the starting point is selected on the wide area map, the relationship between the starting point and its position is clarified, and the starting point can be accurately selected even when the name of the barking starting point is unknown.

  The present invention has been described with reference to preferred embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention as described below. And design changes are possible.

  That is, in the map display device 1 of the present embodiment, the case where the present invention is applied to a system for delivering articles has been shown, but the present invention may be applied to a system for collecting articles by visiting a plurality of collection destinations. Moreover, you may apply in the search system for performing a predetermined requirement irrespective of distribution of goods. For example, if information on rental housing such as apartments is the object, the latitude and longitude indicating the location of the rental housing is the location information, and the nearest station is the starting point, the nearest station on the map displayed on one screen All the rental houses related to (i.e., rental houses near the station) are displayed. According to this, it is possible to present an appropriate number of properties on one screen, and it is possible to efficiently search for rental housing. In this case, if the “rent price range” is stored as the information stored in the object storage unit 12, only the rental housing at the desired price can be displayed on the map.

  Further, in the map display device 1 of the present embodiment, the object display layer 46 is created and shown superimposed on the map 47, but only the map 47 may be displayed. However, if the object display layer 46 and the map 47 are displayed so as to overlap each other as in the above embodiment, information relating to the delivery destination, such as the name of the delivery destination, can be recognized on the map 47. . That is, even when the name of the delivery destination is not clearly specified on the map 47 stored in the map information storage means 13, the location of the delivery destination is surely grasped on the map 47 by showing the object display layer 46 in an overlapping manner. It becomes possible to make it.

  Furthermore, although the map display device 1 of the present embodiment has been realized by the server 2 and the computer terminal 4, it can also be realized by a single computer. However, if it is constructed from the server 2 and the computer terminal 4, the map information can be acquired even from a remote place. Especially, if the portable terminal such as a mobile phone is used as the computer terminal 4, the map can be confirmed even during the delivery. It becomes possible to do.

It is explanatory drawing which shows the structure of the map display apparatus which is one Embodiment of this invention. It is a block diagram which shows the functional structure of the server in a map display apparatus. It is a block diagram which shows the functional structure of the computer terminal in a map display apparatus. It is explanatory drawing for demonstrating how to obtain | require the maximum latitude and the minimum latitude. It is explanatory drawing which shows the process of displaying map information. It is a flowchart which shows the flow of the process in a server.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Map display apparatus 12 Object storage means 13 Map information storage means 17 Delivery destination extraction means (object extraction means)
18 Area recognition means 19 Scale magnification setting means 20 Map determination means (map information display control means)
21 Layer creation means 22 Display mode setting section (display mode setting means)
23 Superimposing means (layer display control means)
24 Display information output means (map information display control means, layer display control means)
35 Display 38 Starting point selection instruction means 46 Object display layer 47 Map

Claims (5)

Map information storage means in which a plurality of maps having different scale magnifications are stored;
Starting point selection instructing means for selecting one starting point from a plurality of starting points serving as a reference on the map;
A plurality of objects associated with each starting point, and object storage means for storing, as a database, position information including the latitude and longitude thereof;
When one starting point is selected by the starting point selection instructing means, the object extracting means for extracting the plurality of objects with respect to the starting point and their position information from the object storing means;
Among the position information of the starting point selected and instructed by the starting point selecting instruction means and the position information of the object extracted by the object extracting means, the maximum maximum latitude and the maximum longitude and the minimum minimum Area recognition means for obtaining the latitude and minimum longitude and recognizing the size of the area surrounded by the latitude and longitude;
Scale scale setting means for setting a scale scale of a map displayed on the display so that the size of the recognized area is displayed on one screen on the display;
A map display device comprising: a map information display control means for reading out a map of the scale magnification including the area and set by the scale magnification setting means from the map information storage means and displaying the map on the display. . Based on the scale magnification set by the scale magnification setting means, the size of the area recognized by the area recognition means, and the position information extracted by the object extraction means, a plurality of the objects are recorded. A layer creation means for creating an object display layer indicating the arrangement;
2. The layer display control means for displaying the object display layer created by the layer creation means in an overlapping manner with the map displayed by the map information display control means. Map display device.   The map display device according to claim 2, wherein the layer creating unit includes a display mode setting unit that changes a display mode related to the object in accordance with a scale factor set by the scale factor setting unit. .   The map display according to any one of claims 1 to 3, wherein the name of the delivery destination of the article is the object, and the latitude and longitude indicating the location of the delivery destination are the position information. apparatus.   The information on rental housing such as an apartment is the object, the latitude and longitude indicating the location of the rental housing are the position information, and the nearest station is the starting point. The map display apparatus as described in any one.

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