JP3779305B2 - Storage medium storing program for browsing sabo related information and system for browsing sabo related information - Google Patents

Description

  The present invention is a storage medium storing a program for displaying a map, an orthophoto image, and a caution area based on sabo related information stored in a storage medium such as a DVD or a CD, even in a general-purpose personal computer. And the system.

  An apparatus for displaying a map is a geographic information system (hereinafter referred to as GIS). The map data in this GIS consists of a building world, a road world, a river world, etc., each data is composed of vector data and raster data, and latitude and longitude are allocated.

  Such a GIS stores information on many areas in rasters and vectors, and can display a map with high accuracy.

  An application using such a GIS is a regional earthquake disaster situation prediction search system disclosed in Japanese Patent Application Laid-Open No. 2003-307571 (Patent Document 1).

This system captures area image information, which is raster data, displays it on a screen, deletes a background map, extracts contours, and displays the inside of the contours by color by weighting.
JP 2003-307571 A

  However, since GIS expresses many regions with data consisting of raster data and vector data, it has a large amount of data, so it is suitable for displaying GIS maps, photos, etc. on a general-purpose personal computer or mobile personal computer. There was no problem.

  In addition, when looking at dangerous areas related to disasters in the area, if you provide too much detail, you can clearly see that your own house etc. are in the place and give you a sense of anxiety. Those are preferred.

  However, even in such a case, when the GIS is used, the danger area can be provided with a resolution of 1 / 10,000 or less, and there is a problem that the user may be anxious.

  The present invention has been made to solve the above-described problems. A portable personal computer having an MSDOS function, a multi-window function, a browser function, a general-purpose personal computer can easily provide a dangerous area related to disaster prevention, and the like. It is an object to obtain a program that distinguishes areas by color and does not cause anxiety, a storage medium storing the program, and a system.

The present invention stores a map of a specific area indicated by plane rectangular coordinates and an orthophoto image of the specific area as raster data, and overlays the raster data on a screen so that the map and the orthophoto image are thinned. The storage medium stores a program for browsing sabo related information to be displayed.

Computer
  First storage means for storing a map of raster data of the specific area;
  Second storage means for storing an orthophoto image of the raster data of the specific area having a resolution corresponding to the scale of the map;
  Means for causing the map of the raster data to be read from the first storage means, the orthophoto image of the raster data to be read from the second storage means, and displaying them in an overlapping manner;
  A map selection button for selecting the map, a photo selection button for selecting the orthophoto image, a means for displaying on the screen a density scale having a bar indicating a moving range with a lever;
    Means for reading the current lever movement position of the density scale when the map selection button is selected, and converting the density of map pixels on the screen into a density value of the movement position;
  Means for reading the current lever movement position of the density scale when the photo selection button is selected, and converting the density of the pixels of the orthophoto image on the screen into a density value of the movement position;
Is a storage medium storing a program for browsing sabo related information for functioning as
  Further, the present invention stores a map of a specific area indicated by plane rectangular coordinates and an orthophoto image of the specific area as raster data, and displays the raster data on the screen so that the map, the orthophoto image is displayed. Is a storage medium that stores a program for browsing sabo related information.
Computer
  A first storage means for storing a first map of raster data of a scale of 1: 200,000 of the specific area;
  Second storage means for storing a second map of raster data of a scale of 1 / 30,000 of the specific area;
  A third storage means for storing a third map of a scale of 1/10000 of the specific area; storing an orthophoto image having a resolution corresponding to the scale of 1 / 10,000 of each area in the specific area Third storage means to keep,
  Means for displaying the first map on a screen and displaying the second map having a position designated on the first map on the screen;
  Means for obtaining a position on the third map corresponding to the designated position when a position is designated on the second map;
  An extraction window having a size less than or equal to the range of the third map is moved to the determined position of the third map, and raster data of the third map in the extraction window is extracted and displayed. Means to
  When displaying the orthophoto image, it is determined whether the third map is displayed on the screen. If the third map is displayed, the orthophoto image having the determined position is displayed. Is extracted from the third storage means, the extraction window is moved to the determined position of the orthophoto image, the image data in the extracted extraction window is read, and the third of the screen is read. Means to overlay the image of
  A map selection button for selecting the map, a photo selection button for selecting the orthophoto image, a means for displaying on the screen a density scale having a bar indicating a moving range with a lever;
    Means for reading the current lever movement position of the density scale when the map selection button is selected, and converting the density of map pixels on the screen into a density value of the movement position;
  Means for reading the current lever movement position of the density scale when the photo selection button is selected, and converting the density of the pixels of the orthophoto image on the screen into a density value of the movement position;
It is a storage medium storing a program for browsing sabo related information for executing the function as.
  Furthermore, the present invention saves a map of raster data of a specific area represented by plane rectangular coordinates, an orthophoto image of the raster data of the specific area, and a plurality of types of caution areas based on sabo related information, and these are stored by a computer. On the other hand, the storage medium stores a program for browsing sabo related information for displaying the map and the orthophoto image lightly. Computer
  First storage means for storing a map of the specific area on a scale of 1 / 10,000;
  A second storage means for storing the orthophoto image having a resolution corresponding to a scale of 1/10000 of the specific area;
  The raster data of several types of attention areas in the specific area on a scale of 1/250 are stored in correspondence with the color and density value (40% to 70%) indicating the type of the attention area, respectively. 3 storage means;
  Means for reading out the map from the first storage means, and reading out the orthophoto image from the second storage means, and displaying them overlaid;
    A map selection button for selecting the map, a photo selection button for selecting the orthophoto image, a density scale section having a bar indicating a moving range by a lever, an enlargement / reduction button, and a type of the attention area are selected and displayed. Means for displaying on the screen a scale having a tool portion with an area display button for causing
  The attention area of the type selected by the area display button is read from the third storage means, converted into a scale resolution of the orthophoto image, and displayed on the orthophoto image or map image on the screen. Means to
  Means for reading the current lever movement position of the density scale when the map selection button is selected, and converting the density of map pixels on the screen into a density value at the movement position;
  Means for reading the current lever movement position of the density scale when the photo selection button is selected, and converting the density of the pixels of the orthophoto image on the screen into a density value of the movement position;
  This is a storage medium storing a sabo related information image providing program for executing the function as
  The invention of the present application stores a map of a specific area indicated by plane rectangular coordinates and an orthophoto image of the specific area as raster data, and displays the raster data on the screen so that the map and the orthophoto image are displayed. Is a storage medium that stores a program for browsing sabo related information.
  Computer
  A first storage means for storing a first map of raster data of a scale of 1: 200,000 of the specific area;
  Second storage means for storing a second map of raster data of a scale of 1 / 30,000 of the specific area;
  A third storage means for storing a third map of a scale of 1/10000 of the specific area; storing an orthophoto image having a resolution corresponding to the scale of 1 / 10,000 of each area in the specific area The fourth storage means to keep,
  Means for displaying the first map on a screen and displaying the second map having a position designated on the first map on the screen;
  Means for obtaining a position on the third map corresponding to the designated position when a position is designated on the second map;
  An extraction window having a size less than or equal to the range of the third map is moved to the determined position of the third map, and raster data of the third map in the extraction window is extracted and displayed. Means to
  When displaying the orthophoto image, it is determined whether the third map is displayed on the screen. If the third map is displayed, the orthophoto image having the determined position is displayed. Is extracted from the fourth storage means, the extraction window is moved to the determined position of the orthophoto image, the image data in the extracted extraction window is read, and the third of the screen is read. Means to overlay on the map of
  A map selection button for selecting the map, a photo selection button for selecting the orthophoto image, a density scale section having a bar indicating a moving range by a lever, an enlargement / reduction button, and a type of the attention area are selected and displayed. Means for displaying on the screen a scale having a tool portion with an area display button for causing
  Means for reading the current lever movement position of the density scale when the map selection button is selected, and converting the density of map pixels on the screen into a density value of the movement position;
  Means for reading the current lever movement position of the density scale when the photo selection button is selected, and converting the density of the pixels of the orthophoto image on the screen into a density value of the movement position;
  The attention area of the type selected by the area display button is read from the third storage means, converted into a scale resolution of the orthophoto image, and displayed on the orthophoto image or map image on the screen. Means to
  This is a storage medium storing a sabo related information image providing program for executing the function as

Furthermore, the system for browsing sabo related information according to the present invention stores a map of raster data of a specific area indicated by plane rectangular coordinates, an orthophoto image of the raster data of the specific area, and a plurality of types of caution areas based on sabo related information. Then, the system is a system for browsing sabo related information, in which the map and the orthophoto image are displayed lightly while being overlaid by a computer.
  On the computer,
  First storage means for storing a first map of raster data of a scale of 1: 200,000 of the specific area;
  Second storage means for storing a second map of raster data on a scale of 1 / 30,000 of the specific area;
  Third storage means for storing a third map having a scale of 1/10000 of the specific area; and storing an orthophoto image having a resolution corresponding to the scale of 1/1000 of each area in the specific area. A fourth storage means;
  Means for displaying the first map on a screen and displaying the second map having a position designated on the first map on the screen;
  Means for obtaining a position on the third map corresponding to the designated position when a position is designated on the second map;
  An extraction window having a size less than or equal to the range of the third map is moved to the determined position of the third map, and raster data of the third map in the extraction window is extracted and displayed. Means to
  When displaying the orthophoto image, it is determined whether the third map is displayed on the screen. If the third map is displayed, the orthophoto image having the determined position is displayed. Is extracted from the fourth storage means, the extraction window is moved to the determined position of the orthophoto image, the image data in the extracted extraction window is read, and the third of the screen is read. Means for overlaying on the map of
  A map selection button for selecting the map, a photo selection button for selecting the orthophoto image, a density scale section having a bar indicating a moving range by a lever, an enlargement / reduction button, and a type of the attention area are selected and displayed. Means for displaying on the screen a scale having a tool part with an area display button for causing
  When the map selection button is selected, means for reading the current lever movement position of the density scale, and converting the density of the map pixel of the screen into a density value of the movement position;
  Means for reading the current lever movement position of the density scale when the photo selection button is selected, and converting the density of pixels of the orthophoto image of the screen into a density value of the movement position;
  The attention area of the type selected by the area display button is read from the third storage means, converted into a scale resolution of the orthophoto image, and displayed on the orthophoto image or the map image on the screen. Means to
  The main point is that

  The map information of a specific area in which latitude and longitude are indicated by plane rectangular coordinates is indicated by raster data, and the first map data obtained by projecting the map information of the raster data with a first scale below the scale of the map information is stored. Of the first map and the first map data, a map of a predetermined area where the orthophoto image exists is a second scale corresponding to the resolution of the orthophoto image (first scale> second scale). A second memory that stores the second map data projected on the scale linked to the predetermined area in the format of the raster data, and an aerial photograph of the predetermined area on the resolution corresponding to the second scale A third memory which is converted into an orthophoto image based on the image and linked to the second map data in the format of the raster data and stored, and each map stored in advance and the orthophoto An operation toolbox having a scale for changing the color density of the image is displayed, means for notifying the position of the operation of the bar of the scale, and the first map data are read out from the first memory, When the position is specified on the first map, the second map data is read out from the second memory, and the second map data is read as the second map. When the display designation of the orthophoto image is input on the second map and the means for outputting to the screen in a format to be displayed on the map, the orthophoto image in the third memory is read out and the second photo is displayed. When the first map, the second map, or the orthophoto image is output, the scale bar position is converted into a density value when the first map, the second map, or the orthophoto image is output. According First map, and summarized in that and means to change so that the color density of the second map or orthophoto image becomes thin to output to the screen.

  As described above, according to the present invention, the first map, the second map of the second scale (the altitude is low) having a smaller scale than the first map, and the resolution corresponding to the second scale. Orthophoto images are saved as raster data, attention areas based on sabo-related information are stored in these raster data, and caution areas based on sabo-related information are overlaid and displayed using these raster data. Make the photo image and attention area light.

  That is, since maps and orthophoto images are handled as raster data, it is possible to display maps, photos, etc. on a Windows (registered trademark) personal computer or mobile personal computer having an MSDOS function, a multi-window function, a browser function, and the like. In addition, since the orthophoto image has a resolution of 10,000: 1, the attention area is displayed thinly, so that it is not clear that one's house is in, so anxiety is suppressed.

  FIG. 1 is a schematic configuration diagram of a program of a storage medium according to the present embodiment. The program of the storage medium 1 (CD, DVD) is a program that provides an aerial photograph and a map as a watermark image, and as shown in FIG. 1, it may be a desktop (may be a mobile; MSDOS function, multi-window function, multi-function Task function etc.) Installed and used on the type personal computer 2.

  This system effectively provides disaster prevention-related information owned by prefectures (earth and sand disasters, special caution areas, landslide hazard areas, etc.) to residents and related parties.

  That is, the map software represented by the raster, the aerial photograph (orthophoto), and the caution area are overlapped, and the map, the photograph, and the caution area are displayed on the screen at a glance.

  In FIG. 1, the storage medium 1 includes files described below.

(File structure)
For example, a large map folder 5 that stores prefecture map data (also referred to as a large map: raster data) defined in a plane Cartesian coordinate system corresponding to latitude and longitude, and a map of the prefecture is expressed on a scale of 1 / 2000,000. 1 / 200,000 area map folder 6a storing this as raster data for each fixed area and 1/3 scale representing the prefecture map at a scale of 1 / 30,000 and storing it as raster data for each fixed area There are provided a 10,000 area map folder 6b and a 1/10000 area map folder 6c in which prefecture maps are expressed on a scale of 1/10000 and stored as raster data for each predetermined area.

  In addition, aerial photographs of each district in the prefecture are represented at a resolution of 1/10000, and orthophoto images (resolution 2.5 m: resolution of 1/10000) in which the pixels of these aerial photographs are defined by map coordinates are stored. The photo folder 8 is provided.

  Further, in the present embodiment, the locus of the attention area is defined in the coordinate system of the map of 1/2500 (right-angle plane coordinates) and stored in the folder 9. This caution area is preferably provided for each area name.

  The above-mentioned caution area includes a sediment-related disaster special warning area, a sediment-related disaster warning area, a debris flow inundation expected area, a debris flow dangerous mountain stream area, a landslide danger area, a landslide danger area, and the like. Color data is assigned to these trajectories. For example, the Sediment Disaster Special Warning Area is orange, the Sediment Disaster Warning Area is yellow, the debris flow inundation area is green, the debris flow danger mountain area is white, the landslide danger area is brown, and the landslide danger area is white. However, the density value of each color is set to, for example, 40% to 70% so that it can be seen through.

  Further, the storage medium 1 includes the following software that uses the map and the orthophoto image.

  As shown in FIG. 1, a map / photo reading unit 10, a watermark unit 11, a density scale display unit 13, a color density correction unit 12, a caution area output unit 15, and the like are provided.

  The map / photo reading unit 10 reads out a large map upon activation and displays it on the screen. When a region name (city, town, ward, chome, group, etc .: selected display on the sub-screen) is input, the corresponding 20 When the map display is selected and the map display is selected, the number of clicks and the cursor position on the screen are read. When the number of clicks is 2, the displayed screen (1 / 200,000) Based on the scale of the map, the coordinates of the cursor on the map are obtained, the area map folder 6b of the next scale (1 / 30,000) included in the coordinates is assigned, and the above-mentioned coordinates stored in this folder 6b are assigned. Allocate the map fill you have (1 / 30,000). Then, the map of 1 / 30,000 is displayed on the screen around the obtained coordinates. When a map of 1 / 30,000 is displayed and the number of clicks is 2 times, the coordinates of the cursor on the screen based on the scale of the displayed screen (1 / 30,000) Then, the area map folder 6c having the next resolution (1 / 10,000) included in the coordinates is assigned, and the map (1 / 10,000) having the coordinates stored in the folder 6b is assigned. Then, a 1 / 10,000 area map centered on the obtained coordinates is displayed (see FIG. 2).

  Further, the map / photo reading unit 10 determines whether or not a 1 / 10,000 map is displayed. When a 1 / 10,000 map is not displayed, a photo button (not shown) cannot be used. The command to be made to be output to the scale display unit 13.

  In addition, when a 1 / 10,000 map is displayed, a command for allowing the photograph button to be used is output to the scale display unit 13.

  And when the 1 / 10,000 map is displayed and the photo button is selected, the area (folder) of the 1 / 10,000 map displayed on the screen is determined and linked to this area. The orthophoto image that has been displayed is displayed on the screen.

  When the map button is selected in the scale display unit 13 and the map data (1 / 10,000, 1 / 30,000, 1 / 300,000) is output from the map / photo reading unit 10, the watermark unit 11 The density of each pixel of the map data is converted into a density based on the scale value of the scale display unit 13 and output to the display unit. For example, the concentration is 0% to 100%. At 0%, the map is invisible, and at 50% it appears faint.

  When the photo button is selected and photo data (1 / 10,000) is output from the map / photo reading unit 10, the watermark unit 11 determines the density of each pixel of the photo data (raster data). Each is converted into a density based on the scale value of the scale display unit 13 and output to the display unit. For example, the concentration is 0% to 100%. At 0%, the photo is invisible, and at 50%, it appears faint.

  When the attention area display button (area display: type of attention area) is selected, the attention area output section 15 reads the area name from the map / photo reading section 10 and is linked to the area name. , Read the caution area type of the display button (Sediment-related disaster warning area, Sediment-related disaster warning area, debris flow inundation area, debris flow danger mountain area, landslide danger area, landslide danger area, all) and display it on the map / photo reader 10 The coordinates are converted into pixel coordinates based on the scale of the map (1 / 200,000, 1 / 30,000, 1/10000) or the resolution of the orthophoto image (1 / 10,000) and output to the display unit. However, the outline of the earth and sand disaster special alert area and the earth and sand disaster alert area (collectively referred to as the alert area) are displayed with a high density.

  That is, raster data composed of the attention area, the orthophoto field, and the map field is displayed in an overlapping manner, and the orthophoto and the map are thinly displayed by the watermark 11 as shown in FIG. It will be.

  FIG. 4 is a detailed block diagram of a program for displaying the sabo related information of FIG. FIG. 5 is an explanatory diagram for explaining the scale bar. This scale bar is displayed by an aerial photograph button (not shown). As shown in FIG. 5, from the map button 13a, the scale 13b, the lever 13c of the scale 13b, the photo button 13d, the enlargement / reduction button 13e, the area display button 13f, the 1 / 10,000 photo button 13g, etc. Become.

  The map button 13a is a button that is selected when the map density is changed by the movement of the lever 13c, and the lever 13c is moved after the map button 13c is selected.

  The photo button 13d is a button that is selected when the density of the photo (orthophoto) is changed by moving the lever 13c. The lever 13c is moved after the photo button 13d is selected.

  The area display button 13f is selected to display all of the earth and sand disaster special warning area, the earth and sand disaster warning area, the debris flow inundation expected area, the debris flow danger mountain stream area, the landslide danger area, and the landslide danger area.

  1 / 10,000 photo button 13g immediately displays a saved 1 / 10,000 orthophoto image when a map (1 / 300,000, 1 / 30,000, 1/10000) is displayed It is a button to make it.

  As shown in FIG. 4, a large map folder 5, a 1 / 2000,000 area map folder 6a, a 1 / 30,000 area map folder 6b, a 1/10000 area map folder 6c, and a photo folder 8 are provided. Yes. As shown in Fig. 6, these data are linked to a 1 / 2000,000 area map, a 1 / 30,000 area map, and a 1 / 10,000 area map. Is linked to an orthophoto image having a resolution of 1/10000.

  The initial screen display unit 18 reads a large map (a predetermined range of a map centered on a predetermined prefecture) from the large map folder 5 upon activation, and displays the large map on the display unit 20. The coordinate conversion unit 19 reads the scale of the map read by the map reading unit 10a or the resolution read by the aerial photograph reading unit 10b and the cursor position on the screen, and the coordinates of the cursor position are planes based on the scale or resolution described above. Convert to Cartesian coordinates.

  When the area name (city, town, ward, chome name, group, etc .: selected and displayed on the sub-screen) is input, the map reading unit 10a displays the corresponding 1: 200,000 map and converts this scale into the coordinate conversion unit. When the map display is selected, the number of clicks and the coordinates of the cursor from the coordinate conversion unit 19 are read. When the number of clicks is two, the coordinates of the cursor (one hundred thousand The area map folder 6b of the next scale (1 / 30,000) including the coordinates based on the scale is assigned, and the map fill (1 / 30,000) having the above-described coordinates stored in the folder 6b is assigned. Then, the map of 1 / 30,000 is displayed on the screen around the obtained coordinates.

  When a map of 1 / 30,000 is displayed and the number of clicks is 2 times, the coordinates of the cursor on the screen based on the scale of the displayed screen (1 / 30,000) Then, the area map folder 6c having the next resolution (1 / 10,000) included in the coordinates is assigned, and the map (1 / 10,000) having the coordinates stored in the folder 6b is assigned. Then, a 1 / 10,000 area map centered on the obtained coordinates is displayed.

  In addition, when the 1 / 10,000 map is displayed, the caution area output unit 15 extracts items of landslide disaster (special) caution areas (debris flow, landslides, landslides) from the menu list 16 and extracts them. It is displayed as a sub screen (see FIG. 12).

  When items on this sub-screen are selected, items such as debris flow dangerous mountain stream area, landslide risk location area, landslide risk area, etc. are added to the above-mentioned sub screen (see FIG. 13), and the added item is selected. In this case, the debris flow dangerous mountain stream area, the landslide dangerous area, the trajectory area corresponding to the landslide dangerous area, and the color density are extracted and displayed as shown in FIG. 13 (see FIG. 14).

  In other words, in order to distinguish between a legally defined area and an area (dangerous part) that is considered dangerous in the previous survey, data display is made in two stages.

  In general, only the landslide disaster (special) area stipulated by law will appear on the menu. Furthermore, after the landslide disaster (special) caution area is displayed, the menu screen is devised for the first time to select a dangerous location. .

  In this way, the relevant citizens can first check the legal landslide disaster (special) warning area, and then be guided to the flow of knowing that there are other dangerous places nearby.

  The aerial photograph reading unit 10b determines whether or not a map of 1 / 10,000 is displayed. When the map of 1 / 10,000 is not displayed, a command for disabling the photo button (not shown) is output to the scale display unit 13.

  In addition, when a 1 / 10,000 map is displayed, a command for allowing the photograph button to be used is output to the scale display unit 13.

  And when the 1 / 10,000 map is displayed and the photo button is selected, the area (folder) of the 1 / 10,000 map displayed on the screen is determined and linked to this area. The orthophoto image that has been displayed is displayed on the screen.

  The map image watermark unit 11a monitors the status of the scale display unit 13, and when the map button 13a is selected and the lever 13c of the scale 13b is moved, the moving amount is read as the pixel density value, and this density value is read. To reduce the color density of the raster data of the map. In the case of 100%, the map density value read by the map reading unit 10a is displayed.

  The photo image watermark unit 11b monitors the scale display unit 13 and the scale of the map displayed by the map reading unit 10a. When a map of 1 / 10,000 is displayed, the photo button 13d is selected. When the lever 13c of the scale 13b is moved, the amount of movement is read as the pixel density value, and the color density of the raster data of the photograph is reduced according to the density value. In the case of 100%, the density value is displayed as it is.

  The attention area output unit 15 is connected to a switching unit 21, a line generation unit 22, a shaded unit 23, and a hatch unit 24.

  When the caution area output unit 15 reads the caution area corresponding to the area name and enlarges it based on the scale of the map or the resolution of the photo displaying the caution area, the switching unit 21 Line generation unit 22, shading unit 23, or hatch unit that performs processing corresponding to the display type (shaded, line, hatch) set by the operator for the alert area (earth and sand disaster special alert area, earth and sand disaster alert area) 24, and this image data is overlaid on a map and a picture on the screen.

  That is, as shown in FIG. 7, the warning areas (the earth and sand disaster special warning area and the earth and sand disaster warning area) are indicated by lines, shaded, or hatched and displayed.

  Furthermore, as shown in FIG. The enlargement / reduction unit 26 enlarges / reduces by selecting an enlargement / reduction button of the scale display unit 13 (map, photograph, map and photograph). For example, as shown in FIG. 8, the image is reduced to 1/5000 minutes, and when enlargement is selected, the image is enlarged to 1/10000.

  Therefore, when the storage medium 1 is installed in a personal computer, various caution areas are displayed in color on the photograph (orthophoto) as shown in FIG. 9, and a map is displayed when the density of the photograph is reduced. become.

  And since the photograph has a resolution of 1/10000, it is not clear whether an individual house is in the alert area, so that the user will not feel uneasy.

  In the above embodiment, the outline of the warning area is clearly shown. However, as shown in FIG. 10, the outline may be displayed lightly. This is because a contour color changing unit (not shown) capable of changing the pixel density of the contour is connected to the hatch unit 24, and the contour changing unit changes the contour pixels (the number of pixels in the range of 5 m to 10 m) step by step. (See (c) of FIG. 10).

  Furthermore, in the above embodiment, a map including the coordinates of the cursor position is selected and displayed. However, a 1 / 30,000 map is linked to a 1 / 2000,000 map, and this 1 / 30,000 is linked. One 1/10000 map may be linked to this map, and one photo may be linked to the 1/10000 map.

  In this way, when a 1 / 2000,000 map is displayed, the number of clicks is 2 times, and a 130,000 map is displayed immediately. When a 130,000 map is displayed, the number of clicks The map of 1/10000 is displayed twice.

  Here, the map reading unit 10a, the aerial photograph reading unit 10b, and the movement of the image accompanying the cursor movement will be supplemented with the description with reference to FIG.

  As shown in FIG. 11, an orthophoto image and a 1/10000 map are read out and displayed on a screen using a display window 30. This display window 30 shows a range smaller than this range (rakm × rbkm <Rakm × Rbkm) as a display image, assuming that a 1/1000 map and an orthophoto image each cover a range of Rakm × Rbkm. Is. That is, the orthophoto image or the image data group only in the range of rakm × rbkm of the 1/1000 map is transmitted.

  Further, the display window 30 is moved by a display window moving unit 31 in a memory area where an orthophoto image or a 1/10000 map is stored. That is, when the cursor position on the screen is converted into coordinates based on the scale or resolution, the display window moving unit 31 inputs the coordinates and stores the orthophoto image or 1/10000 map as the coordinates. The address of the memory area is obtained, the display window 30 is moved to this address area, and the orthophoto image or 1/10000 map image data is read in the display window.

  This orthophoto image or 1/10000 map image data is decompressed (MPEG) by the decompression unit 32 and output to the watermark, and the density value is set to 10%, 50%, 70%, for example. It is converted and output to the display.

  In other words, the system according to the present embodiment realizes information disclosure of disaster risk areas based on administrative information that has not been easily seen by general users so far. Based on opinion. For this reason, it is supposed to raise disaster prevention awareness without giving fear to residents.

  For example, since administrative documents must be browsed and guided to have a high level of disaster prevention awareness, the background map and orthophoto display method are basically limited so that the dangerous area can be viewed. . In this embodiment, the map uses a 1/1000 map on the screen that does not contain a house shape to identify the house on the orthophoto image. However, to the extent that one house can be easily discriminated ( The roof is visible, but the edge of the eaves is unclear and has a resolution of 2.5m. In other words, taking into account the privacy issue.

  In the above embodiment, the caution area related to sabo related information is displayed. However, areas such as pollution, smock, and electric field strength may be displayed by color.

  In addition, if you specify specified houses (your house, school) on the orthophoto image on the screen, you can calculate the shortest route connecting these houses and display them on the screen, and also calculate and display the distance value. May be.

It is a schematic block diagram of the program of the storage medium of this Embodiment. It is explanatory drawing explaining transition of a map screen. It is explanatory drawing explaining the morphing by this Embodiment. It is a detailed block diagram of the program for the display of the sabo related information of FIG. It is explanatory drawing explaining the scale bar (tool box) of this Embodiment. It is explanatory drawing explaining the link structure of each map and orthophoto image of this Embodiment. It is explanatory drawing explaining a shade, a line, and a hatch. It is explanatory drawing explaining expansion and reduction. It is explanatory drawing explaining the overlapping display of the ortho image of this Embodiment, and an attention area. It is explanatory drawing explaining other embodiment of this Embodiment. It is supplementary explanatory drawing of the map reading part 10a and the aerial photograph reading part 10b. It is explanatory drawing explaining the stage display of a caution area. It is explanatory drawing explaining the stage display of a caution area. It is explanatory drawing explaining the stage display of a caution area.

Explanation of symbols

5 Large map folder 5
6a 1 / 200,000 area map folder 6b 1 / 30,000 area map folder 6c 1/1000 area map folder 8 photo folder 10 map / photo reading section 10a map reading section 10b aerial photograph reading section 11 watermark section 12 color density correction Part
13 Scale display section 15 Caution area output section 19 Coordinate conversion section

Claims (16)

A map of a specific area indicated by plane rectangular coordinates and orthophoto images of the specific area are saved as raster data, and these raster data are overlaid on the screen so that the map and orthophoto images are displayed lightly. A storage medium storing a program for browsing information,
  Computer
  First storage means for storing a map of raster data of the specific area;
  Second storage means for storing an orthophoto image of the raster data of the specific area having a resolution corresponding to the scale of the map;
  Means for causing the map of the raster data to be read from the first storage means, the orthophoto image of the raster data to be read from the second storage means, and displaying them in an overlapping manner;
  A map selection button for selecting the map, a photo selection button for selecting the orthophoto image, a means for displaying on the screen a density scale having a bar indicating a moving range with a lever;
    Means for reading the current lever movement position of the density scale when the map selection button is selected, and converting the density of map pixels on the screen into a density value of the movement position;
  Means for reading the current lever movement position of the density scale when the photo selection button is selected, and converting the density of the pixels of the orthophoto image on the screen into a density value of the movement position;
The storage medium which memorize | stored the program for browsing the sabo related information for performing the function as. The concentration scale is
  The storage medium storing a program for browsing sabo related information according to claim 1, wherein the bar is provided between the map selection button and the photo selection button. A map of a specific area indicated by plane rectangular coordinates and orthophoto images of the specific area are saved as raster data, and these raster data are overlaid on the screen so that the map and orthophoto images are displayed lightly. A storage medium storing a program for browsing information,
  Computer
  A first storage means for storing a first map of raster data of a scale of 1: 200,000 of the specific area;
  Second storage means for storing a second map of raster data of a scale of 1 / 30,000 of the specific area;
  A third storage means for storing a third map of a scale of 1/10000 of the specific area; storing an orthophoto image having a resolution corresponding to the scale of 1 / 10,000 of each area in the specific area Third storage means to keep,
  Means for displaying the first map on a screen and displaying the second map having a position designated on the first map on the screen;
  Means for obtaining a position on the third map corresponding to the designated position when a position is designated on the second map;
  An extraction window having a size less than or equal to the range of the third map is moved to the determined position of the third map, and raster data of the third map in the extraction window is extracted and displayed. Means to
  When displaying the orthophoto image, it is determined whether the third map is displayed on the screen. If the third map is displayed, the orthophoto image having the determined position is displayed. Is extracted from the third storage means, the extraction window is moved to the determined position of the orthophoto image, the image data in the extracted extraction window is read, and the third of the screen is read. Means to overlay the image of
  A map selection button for selecting the map, a photo selection button for selecting the orthophoto image, a means for displaying on the screen a density scale having a bar indicating a moving range with a lever;
    Means for reading the current lever movement position of the density scale when the map selection button is selected, and converting the density of map pixels on the screen into a density value of the movement position;
  Means for reading the current lever movement position of the density scale when the photo selection button is selected, and converting the density of the pixels of the orthophoto image on the screen into a density value of the movement position;
The storage medium which memorize | stored the program for browsing of the sabo related information for performing the function as.   The concentration scale is
  4. The storage medium storing a program for browsing sabo related information according to claim 3, wherein the bar is provided between the map selection button and the photo selection button.   A map of raster data of a specific area represented by plane rectangular coordinates, an orthophoto image of the raster data of the specific area, and a plurality of types of caution areas based on sabo related information are stored and displayed by a computer, A storage medium storing a program for browsing sabo related information for displaying a map and an orthophoto image thinly,
  Computer
  First storage means for storing a map of the specific area on a scale of 1 / 10,000;
  A second storage means for storing the orthophoto image having a resolution corresponding to a scale of 1/10000 of the specific area;
  The raster data of several types of attention areas in the specific area on a scale of 1/250 are stored in correspondence with the color and density value (40% to 70%) indicating the type of the attention area, respectively. 3 storage means;
  Means for reading out the map from the first storage means, and reading out the orthophoto image from the second storage means, and displaying them overlaid;
    A map selection button for selecting the map, a photo selection button for selecting the orthophoto image, a density scale section having a bar indicating a moving range by a lever, an enlargement / reduction button, and a type of the attention area are selected and displayed. Means for displaying on the screen a scale having a tool portion with an area display button for causing
  The attention area of the type selected by the area display button is read from the third storage means, converted into a scale resolution of the orthophoto image, and displayed on the orthophoto image or map image on the screen. Means to
  Means for reading the current lever movement position of the density scale when the map selection button is selected, and converting the density of map pixels on the screen into a density value at the movement position;
  Means for reading the current lever movement position of the density scale when the photo selection button is selected, and converting the density of the pixels of the orthophoto image on the screen into a density value of the movement position;
  A storage medium storing a sabo related information image providing program for executing the function as the. The scale is
  The bar is provided between the map selection button and the photo selection button, the enlargement / reduction button is arranged on the left side of the photo selection button, and the attention area display button is arranged on the left side of the enlargement / reduction button. A storage medium storing a program for browsing sabo related information according to claim 6. The computer,
  When the attention area is displayed, each pixel in a predetermined width range that forms the outline of the attention area is set to a density value that makes the color of the pixel on the outer end side of the outline the thinnest, and on the outer end side, Means for changing a pixel going from the pixel to the inside of the attention area to a density value that gradually increases in color;
6. A storage medium storing the sabo related information image providing program according to claim 5 for realizing the function as. The type of the caution area is a landslide disaster special warning area, a landslide disaster warning area, a debris flow inundation assumption area, a debris flow danger mountain area, a landslide danger area, or a landslide danger area in the specific area,
  The computer,
  Means for storing different types of colors in these areas, the coordinate values of the areas and the density values of the colors in correspondence with each other in the third storage means,
  As the area display button is selected, the type name of the attention area is displayed on the sub-screen, and when the type name is selected, the corresponding type of attention area is read out from the third storage unit. means,
  Means for displaying the caution area when the color corresponding to the caution area and the density value of the color are read, and displaying the color as the read density value on the map or orthophoto image;
A storage medium storing a program for browsing sabo related information according to claim 5, 6 or 7 for executing the function as. A map of a specific area indicated by plane rectangular coordinates and orthophoto images of the specific area are saved as raster data, and these raster data are overlaid on the screen so that the map and orthophoto images are displayed lightly. A storage medium storing a program for browsing information,
  Computer
  A first storage means for storing a first map of raster data of a scale of 1: 200,000 of the specific area;
  Second storage means for storing a second map of raster data of a scale of 1 / 30,000 of the specific area;
  A third storage means for storing a third map of a scale of 1/10000 of the specific area; storing an orthophoto image having a resolution corresponding to the scale of 1 / 10,000 of each area in the specific area The fourth storage means to keep,
  Means for displaying the first map on a screen and displaying the second map having a position designated on the first map on the screen;
  Means for obtaining a position on the third map corresponding to the designated position when a position is designated on the second map;
  An extraction window having a size less than or equal to the range of the third map is moved to the determined position of the third map, and raster data of the third map in the extraction window is extracted and displayed. Means to
  When displaying the orthophoto image, it is determined whether the third map is displayed on the screen. If the third map is displayed, the orthophoto image having the determined position is displayed. Is extracted from the fourth storage means, the extraction window is moved to the determined position of the orthophoto image, the image data in the extracted extraction window is read, and the third of the screen is read. Means to overlay on the map of
  A map selection button for selecting the map, a photo selection button for selecting the orthophoto image, a density scale section having a bar indicating a moving range by a lever, an enlargement / reduction button, and a type of the attention area are selected and displayed. Means for displaying on the screen a scale having a tool portion with an area display button for causing
  Means for reading the current lever movement position of the density scale when the map selection button is selected, and converting the density of map pixels on the screen into a density value of the movement position;
  Means for reading the current lever movement position of the density scale when the photo selection button is selected, and converting the density of the pixels of the orthophoto image on the screen into a density value of the movement position;
  The attention area of the type selected by the area display button is read from the third storage means, converted into a scale resolution of the orthophoto image, and displayed on the orthophoto image or map image on the screen. Means to
  A storage medium storing a sabo related information image providing program for executing the function as the. The scale is
  The bar is provided between the map selection button and the photo selection button, the enlargement / reduction button is arranged on the left side of the photo selection button, and the attention area display button is arranged on the left side of the enlargement / reduction button. A storage medium storing a program for browsing sabo related information according to claim 9. In the computer,
  When displaying the attention area, each pixel in a predetermined width range that forms the outline of the attention area is set to a density value that makes the color of the pixel on the edge side of the outline the thinnest, and the pixel on the edge side Means to change to a density value that gradually increases in color toward the inside of the attention area,
The storage medium which memorize | stored the sabo related information image provision program of Claim 9 or 10 for implement | achieving the function as. The type of the caution area is a landslide disaster special warning area, a landslide disaster warning area, a debris flow inundation assumption area, a debris flow danger mountain area, a landslide danger area, or a landslide danger area in the specific area,
  The computer,
  Means for storing different types of colors in these areas, the coordinate values of the areas and the density values of the colors in correspondence with each other in the third storage means,
  In response to the selection of the area display button, the name of the type of the attention area is displayed on the sub-screen, and when the name of the type is selected, the means of reading the attention area of the corresponding type from the third area ,
  Means for displaying the caution area when the color corresponding to the caution area and the density value of the color are read, and displaying the color as the read density value on the map or orthophoto image;
The storage medium which memorize | stored the sabo related information image provision program of Claim 9, 10 or 11 for implement | achieving the function as these. A map of raster data of a specific area represented by plane rectangular coordinates, an orthophoto image of the raster data of the specific area, and a plurality of types of caution areas based on sabo related information are stored and displayed by a computer, A system for browsing sabo related information that displays thin maps and orthophoto images.
  On the computer,
  First storage means for storing a first map of raster data of a scale of 1: 200,000 of the specific area;
  Second storage means for storing a second map of raster data on a scale of 1 / 30,000 of the specific area;
  Third storage means for storing a third map having a scale of 1/10000 of the specific area; and storing an orthophoto image having a resolution corresponding to the scale of 1/1000 of each area in the specific area. A fourth storage means;
  Means for displaying the first map on a screen and displaying the second map having a position designated on the first map on the screen;
  Means for obtaining a position on the third map corresponding to the designated position when a position is designated on the second map;
  An extraction window having a size less than or equal to the range of the third map is moved to the determined position of the third map, and raster data of the third map in the extraction window is extracted and displayed. Means to
  When displaying the orthophoto image, it is determined whether the third map is displayed on the screen. If the third map is displayed, the orthophoto image having the determined position is displayed. Is extracted from the fourth storage means, the extraction window is moved to the determined position of the orthophoto image, the image data in the extracted extraction window is read, and the third of the screen is read. Means for overlaying on the map of
  A map selection button for selecting the map, a photo selection button for selecting the orthophoto image, a density scale section having a bar indicating a moving range by a lever, an enlargement / reduction button, and a type of the attention area are selected and displayed. Means for displaying on the screen a scale having a tool part with an area display button for causing
  When the map selection button is selected, means for reading the current lever movement position of the density scale, and converting the density of the map pixel of the screen into a density value of the movement position;
  Means for reading the current lever movement position of the density scale when the photo selection button is selected, and converting the density of pixels of the orthophoto image of the screen into a density value of the movement position;
  The attention area of the type selected by the area display button is read from the third storage means, converted into a scale resolution of the orthophoto image, and displayed on the orthophoto image or the map image on the screen. Means to
  A system for browsing sabo related information, characterized by comprising: The scale is
  The bar is provided between the map selection button and the photo selection button, the enlargement / reduction button is arranged on the left side of the photo selection button, and the attention area display button is arranged on the left side of the enlargement / reduction button. The system for browsing sabo related information according to claim 13. In the computer,
  When displaying the attention area, each pixel in a predetermined width range that forms the outline of the attention area is set to a density value that makes the color of the pixel on the edge side of the outline the lightest, and the pixel on the edge side Means to change to a density value that gradually increases in color toward the inside of the attention area;
The system for browsing sabo related information according to claim 13 or 14, characterized by comprising: The type of the caution area is a landslide disaster special warning area, a landslide disaster warning area, a debris flow inundation assumption area, a debris flow danger mountain area, a landslide danger area, or a landslide danger area in the specific area,
  In the computer,
  Means for storing in the third storage means the color types different from each other in the areas, the coordinate values of the areas and the density values of the colors in association with each other;
  The name of the type of the attention area is displayed on the sub-screen in accordance with the selection of the area display button, and when the name of the type is selected, the means for reading the attention area of the corresponding type from the third area When,
  Means for reading the color corresponding to the attention area and the density value of the color when displaying the attention area, and displaying the color and the density value as the read density value on the map and the orthophoto image. ,
The system for browsing sabo related information according to claim 13, 14, or 15.