JP5383085B2 - Map display system - Google Patents

Description

  The present invention relates to a map display system capable of displaying information related to an arbitrary point on a map.

There is known a map display system that reads an electronic map electronically recorded in advance on a storage medium and displays it on a screen. When a user clicks an arbitrary point on the screen using an input device such as a mouse, the map display stem moves the electronic map so that the clicked point is the center, and the electronic map centered on the clicked point is displayed. indicate. When the user requests information on an arbitrary point, the map display stem displays the information on the point on the electronic map.
JP 2004-177470 A

  In this configuration, since the electronic map is moved by clicking, when the user clicks on a point where information is to be obtained, the map is moved so that the point becomes the center, and then information on the point is displayed. Therefore, when you want to display information on multiple arbitrary points at the same time, or when the distance between arbitrary points is far away, one point may deviate from the display range of the screen due to the movement of the map . Therefore, desired information cannot be displayed simultaneously.

  The present invention has been made in view of such a problem, and an object of the present invention is to obtain a map display system capable of simultaneously displaying information on a plurality of points on a map.

  The map display server according to the first aspect of the present invention is a map data transmitting means capable of transmitting map data to a client device having a screen capable of displaying a map, a map fixing request from the client device, and a map fixing request. Can receive the information of the map fixing means that fixes the position on the screen of the map displayed using the map data and the specific point selected by the user on the map fixed by the map fixing means A selection point receiving means, an information acquisition means for acquiring feature information of features existing within a certain range from a specific point, and a search condition input display for determining the search condition on the screen A search condition display means for displaying, and a search condition receiving means capable of receiving from the client device the input condition input in the search condition input display. The acquisition means searches for a feature that exists within a certain range from a specific point and meets the search condition, and acquires feature information of the feature. The map transmission means is acquired by the information acquisition means. The feature information is transmitted to the client device. The feature information is, for example, a feature name, address, telephone number, latitude / longitude, type, description of the feature, or an image representing the feature. The type in the feature information is for classifying features such as restaurants, hospitals, and schools.

  The search condition display means preferably displays a search condition input display in the vicinity of a specific point. Search conditions can be entered without moving the mouse too much.

  The map data transmitting means preferably displays a certain range on the map. The user can easily grasp the search range.

  You may further provide the search range change means which changes a fixed range. The user can freely set the search range.

  The certain range may be determined by the scale of the map or the display range of the map. The trouble of setting the search range can be saved.

  The information acquisition means can search for the feature multiple times, and the map data transmission means sets the fixed range corresponding to the feature information based on the most recently obtained search results and the previous search results to the client device. May be configured to transmit to. A plurality of search results are displayed on the map display means, and visibility can be prevented from deteriorating.

  The information storage means for storing the feature information and the information reading means for reading the feature information from the information storage means are further provided. The information storage means stores the feature information according to the previous search results, and the map data transmission means. Sends the data for displaying the readout display for reading the search results up to the previous time to the client device in the number corresponding to the search result, and when the readout display is selected, the information readout means selects from the information storage means It is preferable that the search result corresponding to the read display is read, and the map data transmitting means transmits the corresponding search result to the client device. The user can freely refer to a desired search result.

  A map display system according to a second invention of the present application is a screen capable of displaying a map using map data received from a map display server, a map fixing means for fixing a position of the map displayed on the screen to the screen, A location selecting means for selecting a specific location on the map fixed by the map fixing means, and a search condition determining means for inputting the search condition to the search condition input means, and the screen received from the map display server. It is preferable to include a client device that displays physical information and the map display server.

  The information acquisition means can search for a feature multiple times, and the screen displays feature information based on the most recently obtained search results and a certain range corresponding to the previous search results. The feature information may not be displayed. A plurality of search results are displayed on the map display means, and visibility can be prevented from deteriorating.

  The client device may further include a map printing unit that prints a map within a certain range and the feature information searched by the information acquisition unit.

  It is desirable that the map printing unit prints a map in a certain range and the feature information searched by the information acquisition unit for each specific point.

  It is desirable that the map printing means prints a map in a certain range and the feature information searched by the information acquisition means on one medium.

  The map display program according to the third invention of the present application displays a map on the map display means, fixes the position of the map displayed on the map display means on the map fixing means, and is fixed on the point selection means by the map fixing means. The feature acquired by the information acquisition unit in the map display unit is selected by selecting a specific point on the map, causing the information acquisition unit to acquire feature information of the feature existing within a certain range from the specific point. Information is displayed.

  According to a fourth aspect of the present invention, there is provided a map display method comprising: a step of displaying a map on a map display means; a step of fixing the position of the map displayed on the map display means; and a specific point on the map where the position is fixed. A step of selecting, a step of acquiring feature information of a feature existing within a certain range from a specific point, and a step of displaying the feature information on a map display means.

  A map display program according to a fifth invention of the present application causes a map display server to transmit map data to a client device having a screen capable of displaying a map, to receive a map fixing request from the client device, and to receive a map fixing request The position on the screen of the map displayed using the map data is fixed, the information of the specific point selected by the user on the map fixed by the map fixing means is received, and within a certain range from the specific point The feature information of the feature existing in the database is acquired from the database server, the search condition input display for determining the search condition is displayed on the screen, the input condition input in the search condition input display is received from the client device, Search for features that exist within a certain range from a specific point and meet the search conditions, obtain feature information for the feature, and click the feature information. Characterized in that to transmit to Ianto device.

  According to a sixth aspect of the present invention, there is provided a map display method comprising: transmitting map data to a client device having a screen capable of displaying a map; receiving a map fixing request from the client device; and receiving a map fixing request. The step of fixing the position on the screen of the map displayed using the map data, the step of receiving the information of the specific point selected by the user on the map fixed by the map fixing means, and the specific point The step of acquiring the feature information of the features existing within a certain range from the database server, the step of displaying the search condition input display for determining the search condition on the screen, and the input input to the search condition input display A step of receiving a condition from a client device, and a feature that exists within a certain range from a specific point and meets a search condition Locate and characterized in that it comprises a step of acquiring the feature information of the feature, and transmitting the feature information to the client device.

  According to the present invention, a map display system capable of simultaneously displaying information on a plurality of points on a map is obtained.

  Hereinafter, a map display system according to the present invention will be described with reference to the accompanying drawings.

  First, the configuration of the map display system will be described with reference to FIGS. The map display system provides map information to the first to nth clients 100a, 100b, 100n connected to a network, for example, the Internet, and the first to nth clients 100a, 100b, 100n via the Internet. It is mainly composed of a providing server 200, a map database server 300 connected to the map providing server 200, and a feature database server 400. Here, n is an integer of 1 or more.

  The first to n-th clients 100a, 100b, and 100n include client control units 120a, 120b, and 120n, input units 130a, 131a, 130b, 131b, 130n, and 131n that form point selection means and search condition determination means, and map display means Display units 110a, 110b, and 110n. The client control unit 120a transmits / receives data to / from the control of each unit of the first to nth clients 100a, 100b, and 100n and the map providing server 200. The input units 130a, 131a, 130b, 131b, 130n, and 131n are input devices such as the keyboards 130a, 130b, and 130n and the pointing devices 131a, 131b, and 131n. , 100b, 100n. The input data is processed by the client control unit 120n and transmitted to the map providing server 200. The screen 111n of the display unit 110n includes a map display region 112 that displays map data received from the map providing server 200, and an information display region 113 that displays data input using the input units 130n and 131n.

  Printers 140a, 140b, and 140n are connected to the first to nth clients 100a, 100b, and 100n, respectively. The client control unit 120n can print the data received from the map providing server 200 using the printer 140n.

  The map database server 300 records a mesh map composed of raster data. The mesh map is obtained by dividing a map of a certain scale into a certain range, and is recorded in association with latitude / longitude information indicating the range of the mesh map, a scale, and a mesh ID (see FIG. 2). The mesh map is bitmap data, and a mesh ID is determined for each mesh map. That is, the mesh ID is a number unique to each mesh map.

  The feature database server 400 records feature information. The feature information includes a feature ID, a feature name, an address, a telephone number, a latitude and longitude of the feature, a type (genre) to which the feature belongs, a description of the feature, and an image representative of the feature. This is physical information, which is associated with each other and recorded as a database (see FIG. 3).

  The map providing server 200 includes a map search unit 210, a map fixing unit 220, a feature search screen creation unit 230, a feature search unit 240, a search result storage unit 250, and a print data output unit 260.

  The map search unit 210 acquires map data from the map database server 300 according to the data received from the nth client 100n. Then, the map data is transmitted to the nth client 100n.

  The map fixing unit 220 forms a map fixing unit, and fixes the position of the map displayed on the screen 111n on the screen 111n according to the map fixing request received from the nth client 100n. Details will be described later.

  The feature search screen creation unit 230 forms search condition display means, and the feature search interface 151 is located at a position selected by the user using the mouse 131n or the like on the map displayed in the map display area 112 of the display unit 110n. Is displayed. The feature search interface 151 is a semi-transparent dialog box displayed on the map display area 112, and a map located thereunder is transparently displayed. In the feature search interface 151, a simplified address or feature name 152 of the selected position and a search preset item list 153 are displayed. The search preset item list 153 is a display in which a plurality of search preset items are displayed side by side, and the search preset item is a search character string prepared in advance to save the search effort. For example, a feature name 152 such as “This is Omotesando Station” is displayed, and a plurality of search preset items such as “Find a hotel” and “Find a bank” are displayed as a search preset item list 153 ( (See FIG. 4).

  The feature search unit 240 forms information acquisition means, and acquires feature information, that is, feature information, from the feature database server 400 according to data input by the user using the feature search interface 151.

  The search result storage unit 250 constitutes an information storage unit and an information reading unit, and stores the feature information acquired by the feature search unit 240. It is possible to store a plurality of feature information.

  The print data output unit 260 forms a map printing unit, receives a print instruction from a user, generates a print screen, and transmits it to the nth client 100n. The user can display the print screen generated by the print data output unit 260 on the display unit 110n and edit it.

  Next, map display processing executed by the map display system will be described with reference to FIGS. The map display process is executed when the nth client 100n accesses the map providing server 200.

  First, in step S411, the user operates the input devices 130n and 131n to supply the nth client 100n with point data for specifying a point such as the address, name, or latitude / longitude of the desired point to be displayed on the display unit 110n. input. The client control unit 120n transmits the point data input by the user to the map providing server 200.

  In step S451, the map providing server 200 receives the point data. The map search unit 210 reads a mesh map necessary for displaying a map centered on a point desired by the user in the map display area 112 from the map database server 300 using this point data. At this time, if the point data is an address, the latitude / longitude is searched from the address, and the mesh map including the searched latitude / longitude is read from the map database server 300. When the point data is latitude / longitude, a mesh map including the latitude / longitude is read from the map database server 300.

  In step S452, the map search unit 210 transmits the mesh map to the nth client 100n.

  In step S412, the nth client 100n receives the mesh map, and displays a map centered on a desired point in the map display area 112 in step S413.

  In step S414, the client control unit 120n determines whether or not the map fixing button 116 displayed at the lower right outside the map display area 112 has been clicked by the user with the mouse 131n. When the map fixing button 116 is not clicked, the process returns to step S413, and the drawing of the map is repeated. When the map fixing button 116 is clicked, the client control unit 120n transmits a map fixing request signal to the map providing server 200, and the process proceeds to step S453.

  In step S453, the map fixing unit 220 having the selected point receiving means receives the map fixing fixed request signal, and fixes the center point of the map displayed in the map display area 112. Thereby, even if the user performs an operation of moving the map in the map display area 112 such as clicking or dragging the mouse 131n on the map, the center point of the map in the map display area 112 does not move. Even if the center point of the map is fixed, the map can be reduced and enlarged. At this time, the map is reduced or enlarged around the center point.

  In step S416, the user clicks a desired point in the map display area 112 with the mouse 131n. Hereinafter, this point is referred to as a first selection point 150. Then, the client control unit 120n transmits the latitude / longitude of the first selection point 150 to the map providing server 200.

  In step S454, the map providing server 200 receives the latitude and longitude from the nth client 100n, and the feature search screen creation unit 230 creates the feature search interface 151. At this time, the feature search screen creation unit 230 searches the genre of the feature existing within a certain range from the first selected point 150 by using the feature database server 400, and the five features having the largest number of features belong to it. Use the genre as a search preset item. Then, the address of the first selected point 150 is searched from the latitude and longitude using the map database server 300 to obtain the address of the first selected point 150. Note that the number of search preset items used is not limited to five.

  In step S455, the feature search screen creation unit 230 transmits display data of the feature search interface 151 to the nth client 100n. This display data includes the search preset item and the address of the first selection point 150.

  In step S417, the client control unit 120n receives the display data and displays the feature search interface 151 in the vicinity of the first selected spot 150 in the map display area 112 (see FIG. 4).

  By displaying the feature search interface 151 that is a search condition input display on the map display area 112, that is, the map display means, it is not necessary to provide a search interface outside the map display area 112. Thereby, the map display area 112 can be expanded and a wide range map can be displayed.

  The user clicks and selects a desired genre from the search preset item list 153 displayed in the feature search interface 151 with the mouse 131n. Since the feature search interface 151 is displayed in the vicinity of the first selection point 150, the user can execute a search with almost no movement of the mouse 131n. For example, assuming that the user selects “Find a restaurant”, the following description will be continued.

  In step S418, the client control unit 120n transmits the selected search preset item, that is, “restaurant” to the map providing server 200.

  In step S456, the map providing server 200 receives the selected search preset item, and the feature search unit 240 uses the feature database server 400 to exist within a certain range from the first selected point 150. Search for “restaurant”. This fixed range is set as a search range 154. Thereby, the feature search unit 240 acquires the feature information of the restaurants existing in the first search range 154.

The search range 154 is determined by the map range displayed in the map display area 112 and the scale. For example, the scale of the map shown in FIG. 6 is 1/8000, and a range of 3000 m in the east-west direction (left-right direction in FIG. 6) and 1500 m in the north-south direction (up-down direction in FIG. 6) is displayed in the map display area 112. When there is a region having a radius of 350 m centered on the first selection point 150, the search range 154 is obtained. When the scale is s, the radius is r, and the shortest straight line distance from the end of the map displayed in the map display area 112 is 1, r is calculated by the following equation.
r = (1/160 / s + 300 + 7/30 × l) / 2
In the present embodiment, the shortest straight line distance l from the end of the map displayed in the map display area 112 is a distance 1500 m in the north-south direction of the map.

  In step S457, the search result storage unit 250 records the feature information acquired by the feature search unit 240.

  In step S458, the feature search unit 240 transmits the latitude and longitude of the feature (restaurant) included in the acquired feature information to the nth client 100n.

  In step S419, the nth client 100n receives the latitude and longitude of the feature (restaurant), and displays the feature icon 158 representing the restaurant in the map display area 112 according to the latitude and longitude received by the client control unit 120n in step S420 ( (See FIG. 6). At this time, the range in which the feature information is searched, that is, the search range 154 is displayed by a broken line. Thereby, the user can easily grasp the search range.

  In step S421, the client control unit 120n determines whether to print the feature information. When the user does not click the printout button 115, it is determined that printing is not performed, and the process proceeds to step S416.

  In step S416, when the user clicks a desired point on the map display area 112 again with the mouse 131n, steps S454, S455, and S417 are executed, and the client control unit 120n displays the feature search interface 151 on the map display area 112. Is displayed (see FIG. 7). Let the point clicked this time be the nth selected point 160.

  At this time, the search results up to the previous time are erased from the map, and a circle indicating the search area related to the previous search is displayed with a broken line. A number assigned in the search order is displayed at the center of the circle, and is associated with first to third search result display buttons 155, 175, and 185 displayed on the upper left of the map display area 112. The first to third search result display buttons 155, 175, and 185 display the simplified addresses or feature names of the first to third selection points 150, 170, and 180, respectively.

  When the user clicks the first to third search result display buttons 155, 175, and 185, the client control unit 120n causes the first to third search result display buttons 155, 175, and 185 corresponding to the first to third search result display buttons 155, 175, and 185, respectively. The search result of 3 selection points 150, 170, 180 is requested to the map providing server 200. The search result storage unit 250 selects a search result according to the request from the previous search results recorded in step S457, and transmits it to the nth client 100n. The nth client 100 n receives the search result and displays the search result in the map display area 112. As a result, the feature icon 158 is displayed again on the map.

  Cancel buttons 156, 176, and 186 are displayed beside circles 154, 174, and 184 indicating search areas in the previous search results. When the user clicks the cancel buttons 156, 176, 186, the client control unit 120n displays circles 154, 174, 184 indicating the corresponding search results from the map display area 112 and the corresponding first to third search result displays. The buttons 155, 175, and 185 are deleted from the screen, and the map providing server 200 is requested to delete the search result corresponding to the map providing server 200. Upon receiving this request, the search result recording unit 250 deletes the corresponding search result.

  When the user clicks the printout button 115 in step S421, it is determined that printing is to be performed, and the process proceeds to step S422. In step S422, the client control unit 120n requests the map providing server 200 for print information. The print information is map data and feature information corresponding to the search result currently recorded by the search result recording unit 250.

  In step S459, the print data output unit 260 reads the search result recorded by the search result recording unit 250, and creates print information for each selected point in combination with the map of the corresponding selected point. In step S460, this print information is transmitted to the nth client 100n.

  In step S423, the nth client 100n receives the print information, and in step S424, a print preview based on the print information is displayed on the screen (see FIG. 8).

  In step S425, it is determined whether to print this print preview. When the user determines not to print, the process proceeds to step S426, and the print preview can be edited.

  The user can delete the feature icon 158 and the corresponding feature information frame 159 by clicking the feature icon 158 on the print preview screen. Also, the display range of the map can be changed by clicking or dragging the map. Thereby, it is possible to prevent unnecessary increase in the number of printed materials by printing unnecessary features, and to obtain a desired map. When editing is completed, the process proceeds to step S425 again.

  When the user selects printing, the process proceeds to step S427, and printing is executed. The client control unit 120n transmits the print information displayed in the print preview, that is, map data and feature information to the printer 140n. The printer 140n uses this print information to print a printed matter including a map including all selected points as shown in FIG. 8, and a search range map and desired feature information as shown in FIG. Is printed together. A printed matter in which the map of the search range and the feature information of the desired feature are printed together is output for each selected point.

  According to the present embodiment, since the map is fixed in the map display area 112, the user can simultaneously observe the feature information at a plurality of selected points.

  The map database server 300 may record the map as vector data instead of raster data.

  In step S414, the client control unit 120n may determine whether the user does not click the map fixing button 116 but double-clicks or right-clicks the map display area 112. When double clicking or right clicking is performed, the process proceeds to step S453.

  In step S454, a predetermined genre may be used as a search preset item.

  The search range 154 does not change depending on the range of the map displayed in the map display area 112 and the scale, and may always be a constant range. Moreover, it is preferable that it is a range which is completely included in the map display area 112. As a result, the user can save time and effort to determine the search range 154, and the feature information can be acquired quickly.

  Note that instead of selecting a search preset item by a user, a drop-down box or a text box for selecting or inputting a search character string is provided in the feature search interface 151, and a value selected or input thereto May be used as a search string. The user can freely determine the search string.

  Further, a drop-down box or a text box for the user to select or input the search range 154 may be provided in the feature search interface 151, and a value selected or input thereto may be used as the search range 154. . The user can freely determine the search range 154. At this time, the feature search screen creation unit 230 forms search range changing means.

  Further, the processing in steps S454, S457, and S459 may be executed by the nth client 100n instead of the server. The amount of communication between the nth client 100n and the map providing server 200 can be reduced.

  The map display system according to the present embodiment is mainly configured by the nth client 100n, the map providing server 200, and a plurality of databases, but these may be provided in the same computer.

It is the figure which showed notionally the map display system. It is the figure which showed the database of the map image notionally. It is the figure which showed notionally the database of feature information. It is the figure which showed the screen which displayed the search dialog on the map. It is the figure which showed the feature information display process and the feature information printing process. It is the figure which showed the screen which displayed the search result on the map. It is the figure which showed the screen which displayed the several search result on the map. It is the figure which showed the map which displayed all the search results. It is the figure which showed the screen which displayed the search result.

Explanation of symbols

100n nth client 120n client control unit 130n keyboard 131n mouse 140n printer 200 map providing server 210 map search unit 230 feature search screen creation unit 230
240 feature search unit 250 search result storage unit 260 print data output unit 300 map database server 400 feature database server

Claims (17)

Map data transmission means capable of transmitting map data to a client device having a screen capable of displaying a map;
The map fixing request can be received from the client device, and when the map fixing request is received, the center of the map displayed using the map data is not moved from the currently displayed position. Map fixing means for fixing on the screen;
A selected point receiving means capable of receiving information on a specific point selected by the user on the map fixed by the map fixing means;
Information acquisition means for acquiring from the database server the feature information of the feature existing within a certain range from the specific point;
Search condition display means for displaying a search condition input display for determining the search condition on the screen;
Search condition receiving means capable of receiving from the client device the input condition input in the search condition input display,
The information acquisition means searches for a feature that exists within a certain range from the specific point and meets the search condition, and acquires feature information of the feature,
The map data transmission means is a map display server for transmitting the feature information acquired by the information acquisition means to the client device.   The map display server according to claim 1, wherein the search condition display means displays the search condition input display in the vicinity of the specific point.   The map display server according to claim 1, wherein the map data transmission unit transmits data for displaying the certain range on the map to the client device.   The map display server according to claim 3, further comprising search range changing means for changing the certain range.   The map display server according to claim 3, wherein the certain range is determined by a scale of the map or a display range of the map. The information acquisition means can search for a feature multiple times,
The map data transmitting means, a map according to claim 3 for transmitting the feature information of the predetermined range corresponding to the search results to the feature information and the previous by obtained search results to the nearest to the client device Display server. Information storage means for storing the feature information;
Information reading means for reading the feature information from the information storage means,
The information storage means stores feature information according to search results up to the previous time,
The map data transmitting means transmits data for displaying a reading display for reading search results up to the previous time to the client device in a number corresponding to the search results,
When the reading display is selected, the information reading means reads a search result corresponding to the selected reading display from the information storage means,
The map display server according to claim 1, wherein the map data transmission unit transmits a corresponding search result to the client device. Map data transmission means capable of transmitting map data to a client device having a screen capable of displaying a map;
The map fixing request can be received from the client device, and when the map fixing request is received, the center of the map displayed using the map data is not moved from the currently displayed position. Map fixing means for fixing on the screen;
A selected point receiving means capable of receiving information on a specific point selected by the user on the map fixed by the map fixing means;
Information acquisition means for acquiring from the database server the feature information of the feature existing within a certain range from the specific point;
Search condition display means for displaying a search condition input display for determining the search condition on the screen;
A search condition receiving means capable of receiving an input condition input via the search condition input display from a client device;
The information acquisition means searches for a feature that exists within a certain range from the specific point and meets the search condition, and acquires feature information of the feature,
The map data transmitting means, a map display server for transmitting the feature information acquired by the information acquiring means to the client device;
A screen for displaying a map using map data received from the map display server, and the point selecting means for selecting a particular point in the previous SL on the map which is fixed by the map fixing means, through the search condition input display and a search condition determining means for inputting a search condition Te, and a client device for displaying the feature information which the screen is received from the map display server
A map display system comprising: The information acquisition means can search for a feature multiple times,
The map display system according to claim 8, wherein the screen displays feature information based on a search result obtained most recently, displays a certain range corresponding to the previous search results, and does not display the feature information.   The map display system according to claim 8, wherein the client device further includes a map printing unit that prints the map in the predetermined range and the feature information searched by the information acquisition unit.   The map display system according to claim 10, wherein the map printing unit prints the map in the certain range and the feature information searched by the information acquisition unit for each specific point.   The map display system according to claim 10, wherein the map printing unit prints the map in the certain range and the feature information searched by the information acquisition unit on a single medium. Display the map on the map display means,
The map fixing means fixes the map position in the map display means without moving the center of the map displayed on the map display means from the currently displayed position,
Let the point selection means acquire the specific point selected by the user on the map fixed by the map fixing means,
Let the information acquisition means acquire the feature information of the features that exist within a certain range from the specific point,
A map display program for causing the map display means to display the feature information acquired by the information acquisition means. A step in which the map display means displays a map;
The map fixing means fixing the map display means in the map display means without moving the center of the map displayed on the map display means from the currently displayed position;
A point selection means for acquiring a specific point selected by a user on a fixed position map;
An information acquisition means for acquiring feature information of a feature existing within a certain range from the specific point; and
A map display method comprising: the map display means displaying the feature information. Have the map display server send map data to a client device having a screen capable of displaying a map,
Receiving a map fixing request from the client device;
When the map fixing request is received, the center of the map displayed using the map data is fixed on the screen without moving from the currently displayed position,
The information of a specific point selected by the user on the map whose center is fixed on the screen is received,
Obtaining feature information of features existing within a certain range from the specific point from the database server;
Display the search condition input display for determining the search condition on the screen,
Receiving the input condition input in the search condition input display from the client device;
Search for a feature that exists within a certain range from the specific point and meets the search condition, and obtain feature information of the feature,
A map display program for causing the client device to transmit the feature information. Transmitting map data to a client device having a screen capable of displaying a map;
Receiving a map fixing request from the client device;
When the map fixing request is received, the center of the map displayed using the map data is fixed on the screen without moving from the currently displayed position;
Receiving information on a specific point selected by the user on a map whose center is fixed on the screen;
Acquiring from the database server the feature information of the features existing within a certain range from the specific point;
Displaying the search condition input display for determining the search condition on the screen;
Receiving an input condition input in the search condition input display from a client device;
Searching for a feature that exists within a certain range from the specific point and meets the search condition, and obtaining feature information of the feature;
A map display method comprising: transmitting the feature information to the client device. A screen that can display a map;
Map fixing means for fixing on the screen without moving the center of the map displayed using the map data from the currently displayed position when the map fixing request is received;
A selected point receiving means capable of receiving information on a specific point selected by the user on the map fixed by the map fixing means;
Information acquisition means for acquiring feature information of features existing within a certain range from the specific point;
Search condition display means for displaying a search condition input display for determining the search condition on the screen;
Search condition receiving means capable of receiving the input condition input in the search condition input display,
The information acquisition means searches for a feature that exists within a certain range from the specific point and meets the search condition, and acquires feature information of the feature,
The said screen is a map display apparatus which displays the feature information which the said information acquisition means acquired.

Images