JP7505566B2 - Display control device, display control method and program - Google Patents

Description

The present disclosure relates to technology for controlling displays, and in particular to technology for controlling the display of information relating to the earth's surface.

An example of a system that displays ground information is disclosed, for example, in Patent Document 1. Patent Document 1 describes an example in which the results of analysis performed by the system are superimposed on a topographical map, and an example in which principal stresses and safety factors are superimposed on a vertical cross-sectional view of a sloping ground.

Patent document 2 describes an example of displaying a graph of blood flow information over time in a region of interest set in a moving image showing the blood flow velocity measured by an ultrasound diagnostic device.

JP 2008-298586 A JP 2016-153005 A

The technology of Patent Document 1 displays the principal stress and safety factor of a specific cross section of the ground. The technology of Patent Document 2 displays a graph of the average value of blood flow velocity in a region of interest. The technologies of Patent Documents 1 and 2 cannot display information for a specified range of the earth's surface.

One of the objectives of the present disclosure is to provide a device, etc. that can facilitate the specification of a range when displaying height variations within a specified range of the earth's surface.

A display control device according to one aspect of the present disclosure includes a receiving means for receiving a range specification that specifies a target range on the earth's surface, a determining means for determining the target range specified by the range specification, an extracting means for extracting a variation in height of the earth's surface measured in the target range, a generating means for generating an output display based on the extracted variation, and an output means for outputting information representing the output display.

A display control method according to one aspect of the present disclosure receives a range specification that specifies a target range on the earth's surface, determines the target range specified by the range specification, extracts a variation in the height of the earth's surface measured in the target range, generates an output display based on the extracted variation, and outputs information representing the output display.

A storage medium according to one aspect of the present disclosure stores a program that causes a computer to execute a reception process for receiving a range specification that specifies a target range on the earth's surface, a determination process for determining the target range specified by the range specification, an extraction process for extracting a variation in height of the earth's surface measured in the target range, a generation process for generating an output display based on the extracted variation, and an output process for outputting information representing the output display. One aspect of the present disclosure is also realized by a program stored in the above-mentioned storage medium.

The present disclosure has the effect of making it easier to specify a range when displaying height variations within a specified range on the earth's surface.

FIG. 1 is a block diagram illustrating an example of the configuration of a display system according to first and second embodiments of the present disclosure. FIG. 2 is a flowchart illustrating an example of the operation of the display control device according to the first embodiment of the present disclosure. FIG. 3A is a flowchart illustrating a first example of the operation of the display control device according to the first embodiment of the present disclosure. FIG. 3B is a flowchart illustrating a first example of the operation of the display control device according to the first embodiment of the present disclosure. FIG. 4A is a flowchart illustrating a second example of the operation of the display control device according to the first embodiment of the present disclosure. FIG. 4B is a flowchart illustrating a second example of the operation of the display control device according to the first embodiment of the present disclosure. FIG. 5 is a block diagram illustrating an example of a configuration of a display control device according to a third embodiment of the present disclosure. FIG. 6 is a flowchart illustrating an example of the operation of the display control device according to the third embodiment of the present disclosure. FIG. 7 is a block diagram illustrating an example of a hardware configuration of a computer capable of realizing an apparatus according to an embodiment of the present disclosure.

Embodiments of the present disclosure are described in detail with reference to the drawings.

First Embodiment
A first embodiment of the present disclosure will be described in detail with reference to the drawings.

<<Summary>>
First, an overview of the display system according to the present embodiment will be described. The display system according to the present embodiment is used to display information on the variation in height of the ground surface obtained as a result of measurement, for example, by a synthetic aperture radar. By using a synthetic aperture radar, detailed variations in height of the ground surface over a wide range can be obtained. However, it is not necessarily easy to display information on the variation in height of the ground surface in a desired range. The display system according to the present embodiment accepts a range specification and determines a target range on the ground surface specified by the range specification. The display system according to the present embodiment extracts the variation in height on the ground surface measured in the target range. The display system according to the present embodiment generates an output display based on the extracted variation, and outputs information representing the generated output display. As a result, the display system according to the present embodiment can facilitate the specification of a range when displaying the variation in height in a specified range of the ground surface.

<<Configuration>>
Fig. 1 is a block diagram showing an example of the configuration of a display system 1 according to the present embodiment. In the example shown in Fig. 1, the display system 1 includes a display control device 100, a user device 200, and a geospatial information storage device 300. The display control device 100 is communicatively connected to each of the user device 200 and the geospatial information storage device 300.

<<User Device 200>>
The user device 200 includes an input unit 210 and a display unit 220. The user device 200 may be a computer or a mobile terminal.

<<Input Unit 210>>
The input unit 210 accepts a range specification input by a user that specifies a target range on the ground surface. The target range is a range on the ground surface where height variations are used to generate information represented by an output display, which will be described in detail later. The input unit 210 transmits the accepted range specification to the display control device 100 (specifically, the reception unit 110 of the display control device 100). The input unit 210 can be realized by an input device such as a keyboard, a mouse, or a touch panel, and a controller.

Specifically, for example, as described in detail later, the output unit 150 of the display control device 100 outputs map information to the display unit 220 of the user device 200, and the display unit 220 displays the map. The user inputs a range on the displayed map.

The range is represented, for example, by a figure input by a mouse or touch panel. The input unit 210 calculates coordinates representing the figure on the map from the coordinates representing the figure on the screen, based on the relationship between the coordinate system set on the screen and the coordinate system set on the map. The range is represented, for example, by coordinate values based on the coordinates set on the map.

The data representing the range input by the user is referred to as a range specification. The range specification is data for specifying a range on the earth's surface that corresponds to a range on a map. The input unit 210 transmits the range specification to the reception unit 110.

<<Display unit 220>>
The display unit 220 receives data representing a map from the display control device 100 (specifically, the output unit 150 of the display control device 100). The display unit 220 displays the map represented by the received data.

The display unit 220 also receives information representing an output display (hereinafter also referred to as output information) from the display control device 100 (specifically, the output unit 150 of the display control device 100). The display unit 220 displays the output display represented by the received output information.

The display unit 220 can be realized, for example, by a display device such as a display or a touch panel, and a controller.

<<Display control device 100>>
The display control device 100 includes a receiving unit 110 , a determining unit 120 , an extracting unit 130 , a generating unit 140 , an output unit 150 , a measurement data storage unit 160 , and a reading unit 170 .

<<Reception Unit 110>>
The receiving unit 110 receives a range specification that specifies a target range on the Earth's surface. The receiving unit 110 sends the range specification to the determining unit 120. As described above, the target range is a range on the Earth's surface whose height variations are used to generate information represented by an output display, which will be described in more detail below. The range specification is data representing a range entered by a user.

In the following, we will explain the case where the range specification is represented by a figure input by the user. In this case, specifically, the range specification is, for example, trajectory or point data represented by coordinates based on the coordinate system set on the map described above.

<<Determination Unit 120>>
The determination unit 120 determines a range on the earth's surface (hereinafter also referred to as a target range) that corresponds to the range on the map specified by the range specification accepted by the acceptance unit 110. The range on the earth's surface is represented by, for example, latitude and longitude.

The determination unit 120 determines a figure (hereinafter also referred to as a specified figure) representing the shape of the target range specified by the range specification.

As described above, the range specification is, for example, trajectory data. The determination unit 120 determines whether the trajectory data is one of the predetermined types of figures. In other words, the determination unit 120 determines whether the shape of the target range specified by the range specification is, for example, one of the predetermined types of figures. The types of predetermined figures are, for example, some or all of points, straight lines, circles, ellipses, and polygons. The method for determining which type of figure the trajectory is is, for example, any of various existing methods. In the following description, the determined shape of the figure represents the shape of the target range determined by the determination unit 120.

The determination unit 120 determines the area on the earth's surface represented by the determined figure (i.e., the target area) based on the shape of the determined figure and the size of the figure on the map. The determination unit 120 sends information representing the determined target area and information representing the shape of the determined figure (i.e., information representing the shape of the target area) to the extraction unit 130.

<<Measurement Data Storage Unit 160>>
The measurement data storage unit 160 stores the measurement data.

The measurement data is data that represents the transition of the results of measurements of the height of the ground surface at multiple points by, for example, a synthetic aperture radar (hereinafter, referred to as the transition of the height of the ground surface). The height of the ground surface is, for example, the height of the ground surface from a predetermined reference plane. The height of the ground surface in the measurement data is, for example, the height at multiple measurement points on the ground surface obtained by observation using a radar mounted on a flying object such as an artificial satellite or an aircraft as a synthetic aperture radar (SAR). In the following description, such observation is referred to as observation by a synthetic aperture radar. The data that represents the transition of the height of the ground surface is, for example, data that includes multiple combinations of a value that represents the height and data that represents the time when the height was obtained by observation. The unit of the data that represents the time is appropriately determined. The data that represents the time represents, for example, a date. The data that represents the time represents, for example, a date and a time. In that case, an appropriately determined unit is used as the unit of time.

A point on the earth's surface where the change in the height of the ground surface is obtained is referred to as a measurement point. The measurement data may be data including a combination of position data representing the positions of a plurality of measurement points and data representing the change in the height of the ground surface at the measurement points. Information representing the position of a point on the earth's surface (i.e., a measurement point) is, for example, latitude and longitude information, or other information that can identify a position on the earth's surface. Hereinafter, information representing the position of a point is referred to as point information.

Data that represents the change in height of the ground surface at a measurement point on the ground surface will be referred to as height change data below. The height change data contained in the measurement data is data from which noise has been removed, etc. The height change data of the measurement data contains noise, etc.

In the measurement data, the height transition data is associated with, for example, information (e.g., latitude and longitude information, as described above) that represents the position of the measurement point where the transition in earth's surface height represented by the height transition data was measured. The measurement data includes, for example, location information of a plurality of measurement points and height transition data at each of the plurality of measurement points.

<<Extraction Unit 130>>
The extraction unit 130 receives information representing the target range and information representing the shape of the target range from the determination unit 120. The extraction unit 130 extracts the variation in ground surface height measured in the target range. The extraction unit 130 sends the extracted variation in ground surface height to the generation unit 140.

The measured fluctuation in the height of the ground surface represents the change in the measured value of the height of the ground surface over a specified period of time in the past. Specifically, the extraction unit 130 extracts measurement data representing the change in the measured value of the height of the ground surface at measurement points included in the target range over a specified period of time in the past from the measurement data stored in the measurement data storage unit 160 as the change in the measured height of the ground surface.

When the target range is a shape having an area (e.g., a circle, an ellipse, or a polygon), the extraction unit 130 first identifies measurement points included in the target range. Then, the extraction unit 130 extracts measurement data at the identified measurement points.

When the target range is a shape without an area (for example, a straight line, a curve, a circumference, or the outline of another shape), the extraction unit 130 identifies measurement points through which the line or the like representing the target range passes as measurement points included in the target range. The extraction unit 130 identifies measurement points included in an area of a specified width that includes the line or the like representing the target range at its center as measurement points included in the target range.

When the target range is a point, the extraction unit 130 calculates the change in ground surface height at the target point based on the change in ground surface height at a measurement point selected based on the distance from the target point, which is a point represented by the point in the target range. In one example, the extraction unit 130 can consider, for example, the measurement point closest to the target point as the measurement point included in the target range. In this example, in other words, the extraction unit 130 sets the measurement value at the measurement point closest to the target point as the measurement value at the target point.

The extraction unit 130 may send measurement data at measurement points included in the target range as a change in the height of the ground surface to the generation unit 140. The extraction unit 130 may further send information representing the shape of the target range to the generation unit 140.

<<Generation Unit 140>>
The generation unit 140 receives from the extraction unit 130 information representing the target range, information representing the shape of the target range, and the variation in ground level height measured in the target range and extracted by the extraction unit 130. Specifically, the generation unit 140 receives measurement data at measurement points included in the target range from the extraction unit 130 as measurement data at the measurement points included in the target range. The generation unit 140 generates an output display of a type corresponding to the shape of the target range based on the received variation in ground level height. Specifically, the generation unit 140 generates an output display of a type corresponding to the shape of the target range from the received measurement data.

Each of the figures representing a predetermined target range is pre-associated with one or more types of output display. The generation unit 140 generates an output display of a type associated with the figure represented by the target range. When multiple output displays are associated with one figure, the generation unit 140 generates multiple output displays for one target range. Examples of output displays are described in detail later.

The generation unit 140 sends information representing the generated output display to the output unit 150.

<<Output Unit 150>>
The output unit 150 transmits information representing the map to the user device 200. In this embodiment, the information representing the map is stored as a type of geospatial information in the geospatial information storage device 300. The output unit 150 reads values of the geospatial information representing the map from the geospatial information storage device 300 via the reading unit 170, for example.

The output unit 150 further receives information representing the output display from the generation unit 140. The output unit 150 transmits data representing the output display to the user device 200 in addition to the information representing the map described above. The output unit 150 generates data representing a screen including, for example, a map and an output display, and transmits the data representing the generated screen to the user device 200.

<<Reading Unit 170>>
The reading unit 170 reads out the value of geospatial information from the geospatial information storage device 300 in accordance with a request for the value of geospatial information from a reading source. The reading source is, for example, the extraction unit 130, the generation unit 140, or the output unit 150. The request for the value of geospatial information includes location information and information representing the type of geospatial information. Specifically, the reading unit 170 transmits the request for the value of geospatial information received from the reading source to the geospatial information storage device 300. The reading unit 170 receives from the geospatial information storage device 300 the value of geospatial information of the type represented by the information included in the request for the value of geospatial information at the location represented by the location information included in the request for the value of geospatial information. The reading unit 170 transmits the value of the received geospatial information to the reading source that transmitted the request for the value of geospatial information. In this description, “reading the value of geospatial information via the reading unit 170” means sending a request for the value of geospatial information to the reading unit 170 and receiving the value of the geospatial information read from the geospatial information storage device 300 from the reading unit 170.

<<Geospatial information storage device 300>>
The geospatial information storage device 300 includes a geospatial information storage unit 310 and an input/output unit 320 .

<<Geographical information storage unit 310>>
The geospatial information storage unit 310 stores geospatial information.

In this embodiment, the geospatial information is information that represents at least one of the state of the earth's surface and the state of the underground of the earth's surface. The geospatial information is, for example, information obtained from a so-called geographic information system. Data obtained by observation from an artificial satellite, an aircraft, etc. can also be used as geospatial information. Data obtained by field surveys can also be used as geospatial information. Information that represents the results of analysis based on data obtained by measurement or surveys can also be used as geospatial information. Information that is artificially determined based on data obtained by measurement or surveys can also be used as geospatial information. Geospatial information is sometimes written as GIS (Geographic Information System) data.

In this embodiment, the geospatial information is acquired in advance from a geographic information system and stored in the geospatial information storage unit 310. Multiple types of geospatial information are stored in the geospatial information storage unit 310. The geospatial information is represented in a format that can identify the value of the geospatial information of a point identified by point information (e.g., latitude and longitude). Specific examples of geospatial information will be described in detail later.

<<Input/output unit 320>>
The input/output unit 320 extracts values of geospatial information from the geospatial information stored in the geospatial information storage unit 310, and supplies the extracted values of geospatial information to the display control device 100. The input/output unit 320 receives a request for values of geospatial information, including, for example, point information, from the display control device 100. The input/output unit 320 extracts values of geospatial information of a point identified by the point information of the received request from the geospatial information stored in the geospatial information storage unit 310. When a request for values of geospatial information including point information of a plurality of points is received, the input/output unit 320 extracts values of geospatial information of a point identified by the point information of the plurality of points from the geospatial information stored in the geospatial information storage unit 310. The input/output unit 320 supplies the extracted values of geospatial information of the plurality of points to the display control device 100.

When a specification of a value of geospatial information that includes a specification of a type of geospatial information is received, the input/output unit 320 extracts the value of that type of geospatial information from the geospatial information stored in the geospatial information storage unit 310.

When a specification of a value of geospatial information that does not include a specification of the type of geospatial information is received, the input/output unit 320 extracts values of a predetermined type of geospatial information at a point specified by the point information. When the predetermined types of geospatial information are all types, the input/output unit 320 extracts values of all types of geospatial information stored in the geospatial information storage unit 310 at a point specified by the point information. When there is geospatial information that does not have a value at a point specified by the point information, the input/output unit 320 does not extract a value of that geospatial information. When there is geospatial information that does not have a value at a point specified by the point information, the input/output unit 320 sets the value of that geospatial information to a value representing that a value does not exist (e.g., 0, etc.).

The geospatial information in this embodiment includes building information. The building information represents, for example, the range of each individual building. The value of the building information is, for example, a different identification number assigned to each individual building. The value of the building information for a point not included in the range of a building is, for example, a value that represents something that is not a building (e.g., 0, etc.).

In this embodiment, one piece of geospatial information is information representing a map.

Examples of other types of geospatial information are provided later.

<< Operation >>
Next, the operation of the display control device 100 according to the first embodiment of the present disclosure will be described in detail with reference to the drawings.

Figure 2 is a flowchart showing an example of operation of the display control device 100 of this embodiment.

In the example shown in FIG. 2, first, the output unit 150 displays a map on the user device 200 (step S101). Specifically, the output unit 150 transmits data representing the map to the user device 200.

The reception unit 110 receives a range specification from the user device 200 to estimate the range on the displayed map (step S102). The determination unit 120 determines the specified figure represented by the range specification (step S104). The determination unit 120 further determines the target range on the ground surface specified by the range specification (step S105). The extraction unit 130 extracts the variation in ground surface height of the measurement points included in the target range (step S107). The generation unit 140 generates an output display type associated with the specified figure based on the variation in ground surface height at the measurement points included in the target range (step S109).

The output unit 150 outputs data representing the generated output display (step S110).

＜＜Effects＞＞
This embodiment has the advantage of making it easier to specify a range when displaying height variations within a specified range on the ground surface, because the extraction unit 130 extracts height variations on the ground surface within a target range on the ground surface indicated by the range specification accepted by the acceptance unit 110, and the generation unit 140 generates an output display based on the extracted variations.

<First Modification of the First Embodiment>
The first modification of the first embodiment is a modification in terms of configuration. The display control device 100 may be implemented as a device integrated with at least one of the user device 200 and the geospatial information storage device 300. The measurement data storage unit 160 may be realized by a storage device separated from the display control device 100 and communicably connected to the display control device 100.

<Second Modification of the First Embodiment>
The display unit 220 may receive data representing a screen from the display control device 100, generate a screen from the received data, and display the generated screen. In that case, the above-mentioned input unit 210 may transmit a range represented by the coordinates of the coordinate system set on the screen to the reception unit 110 of the display control device 100. Furthermore, in that case, the reception unit 110, which will be described in detail later, may convert the coordinates of the coordinate system set on the screen to the coordinates of the coordinate system set on the map. The relationship between the coordinate system set on the screen and the coordinate system set on the map may be fixed. And, the relationship between the coordinate system set on the screen and the coordinate system set on the map may be obtained in advance. The display unit 220 may hold the relationship between the coordinate system set on the screen and the coordinate system set on the map. The reception unit 110 may receive the relationship between the coordinate system set on the screen and the coordinate system set on the map from the output unit 150. Note that the line connecting the reception unit 110 and the output unit 150 is omitted in the example shown in FIG. 1 for simplicity.

<Third Modification of the First Embodiment>
The extraction unit 130 may set points at a predetermined interval on the line represented by the target range, and calculate the measurement data at the set points by interpolation using the measurement data measured at the measurement points included within a predetermined distance range from the set points. In this case, the extraction unit 130 may calculate statistical values of the height values of the ground surface measured at the same timing at the measurement points included within a predetermined distance range from the set points as multiple height values representing the transition of the height of the ground surface in the height transition data representing the transition of the height at the set points.

When the target range is a point, the extraction unit 130 calculates the measurement data in the target range by interpolation using the measurement data at the measurement points selected according to a method based on the distance from the target point indicated by the target range. The extraction unit 130 may select measurement points that are within a predetermined distance from the target point. The extraction unit 130 may select a predetermined number of measurement points from the shortest distance from the target point. The extraction unit 130 may, for example, consider a statistical value (e.g., average value, median, or intermediate value) of the measurement values measured at the same timing of the selected measurement points as the measurement value of the target point at that timing. The extraction unit 130 may, for example, consider a weighted average of the measurement values measured at the same timing of the selected measurement points as the measurement value of the target point at that timing. The weight value multiplied by the measurement value of the measurement point may be a value according to the distance from the target point to the measurement point. The extraction unit 130 may set the weight value multiplied by the measurement value of the measurement point to be smaller, for example, as the distance from the target point to the measurement point is larger.

The extraction unit 130 may read the value of the predetermined type of geospatial information at the set point from the geospatial information storage device 300 via the reading unit 170. The geospatial information will be described in detail later. The extraction unit 130 may further read the value of the above-mentioned predetermined type of geospatial information at a measurement point included within a range of a predetermined distance from the set point. The extraction unit 130 may extract a measurement point where the value of the above-mentioned predetermined type of geospatial information is the same as the value of the geospatial information of the set point from the measurement points included within a range of a predetermined distance from the set point. The extraction unit 130 may calculate a statistical value of the height values of the ground surface measured at the same timing at the extracted measurement points as a plurality of height values representing the transition of the ground surface height at the set point.

<Fourth Modification of the First Embodiment>
When the target range is a point, the output display may be, for example, a graph showing the transition of the height of the ground surface at that point. When the target range is a line, the output display may be, for example, a time-series transition graph showing the transition of the height of the ground surface at a point on the line. In the time-series transition graph, the height of the ground surface based on measurement values measured at the same timing may be represented by a single curve. In the time-series transition graph, the height of the ground surface based on measurement values measured at multiple different timings may be represented by multiple curves of different colors. The colors of the multiple curves may represent the order in which the heights represented by those curves were measured.

When the target range is represented by a figure with an area, the generating unit 140 may be a graph of values derived from the change in ground surface height at measurement points included in the target range. The graph in this case may be, for example, a bar graph of a histogram of values representing the change in ground surface height (hereinafter referred to as the amount of change). The graph in this case may be, for example, a pie chart representing the frequency distribution of the amount of change in ground surface height. In this case, the amount of change in ground surface height may be the difference between the measured values of ground surface height obtained by the most recent two measurements.

The output display may be, for example, a contour map showing the amount of change in ground level within the target range. The output display may be, for example, an enlarged view of the target range in which the amount of change in ground level within the target range is represented by color.

The output display may be a bird's-eye view based on the height of the ground surface in the target range, colored based on the amount of change in the height of the ground surface in the target range. In this case, the generating unit 140 may generate a three-dimensional model of the ground surface based on the most recently measured measurement value of the height of the ground surface in the measurement data at the measurement point included in the target range. The generating unit 140 generates an bird's-eye view of the generated three-dimensional model viewed from an appropriately set viewpoint. The generating unit 140 may further set the pixel value of a pixel in the bird's-eye view to a value representing the latest amount of change in the height of the ground surface measured at the measurement point corresponding to that pixel. The generating unit 140 may generate another bird's-eye view in which the pixel value of a pixel is set to a value representing the latest height of the ground surface measured at the measurement point corresponding to that pixel.

<<Fifth Modification of the First Embodiment>>
The output unit 150 receives measurement data at measurement points included in an area displayed as a map from the extraction unit 130, for example, via the generation unit 140. In this case, the extraction unit 130 may extract the measurement points included in the map, and extract the measurement data at the extracted measurement points from the measurement data stored in the measurement data storage unit 160.

The output unit 150 may set the pixel value of a pixel contained in the map to a pixel value representing the most recent variation in ground surface height (e.g., the difference in ground surface height obtained by the most recent two measurements) contained in the received measurement data.

The output unit 150 may superimpose a figure representing the target range at a position corresponding to the target range on the map. The output unit 150 may generate information representing a screen further including the figure representing the target area superimposed on the map and a figure (e.g., a line) representing a relationship with the output display.

<<Examples of geospatial information>>
The geospatial information may be represented by a value representing the state of each mesh into which the earth's surface is divided. In this case, the input/output unit 320 extracts the value of the geospatial information representing the state of the mesh that includes the position specified by the point information as the value of the geospatial information of the point specified by the point information. The size and shape of the mesh may be determined for each type of geospatial information.

The geospatial information may be represented in other formats. For example, the geospatial information may be represented by a boundary line between areas with different states and a value representing the state within the area separated by the boundary line. In this case, the input/output unit 320 extracts a value representing the state within the area that includes the position identified by the point information as the value of the geospatial information of the point identified by the point information. The format of the geospatial information may be determined for each type of geospatial information.

Specific geospatial information may be, for example, the type of fill land, average slope angle, average precipitation (e.g., average annual precipitation), surface geology, steep slope designation, landslide warning area designation, liquefaction risk, whether or not rainwater infiltration basins can be installed, susceptibility to shaking during an earthquake, lowlands with difficult drainage, urban land use, natural terrain classification, artificial terrain classification, surface geology, riverbed, and facility information (presence or absence of construction, etc.). The geospatial information of this embodiment is not necessarily limited to these examples. The geospatial information of this embodiment may not include some of these examples.

The type of embankment may represent the way the earth is piled up, determined by the shape of the ground surface on which the embankment is built. For example, the types of embankment include "valley filling embankment", which is an embankment that fills a valley or stream with earth, and "belly-filling embankment", which is an embankment built on a slope.

The type of embankment may further indicate the scale of the embankment. In this case, for example, among the embankments that have been made by filling valleys or streams with embankments, the type of embankments that meet the criteria (e.g., embankments with an area of 3,000 square meters or more) may be "large-scale valley-filling embankments". In this case, among the embankments that have been made by filling valleys or streams with embankments, the type of embankments that do not meet the criteria may be "valley-filling embankments". Also, among the embankments made on sloping land, the type of embankments that meet the criteria (e.g., embankments that have an angle of 20 degrees or more with respect to the horizontal plane of the ground surface (also called the original ground surface) before the embankment is made and that are 5 meters or more high) may be "large-scale belly-filling embankments". In this case, among the embankments made on sloping land, the type of embankments that do not meet the criteria may be "belly-filling embankments".

The value of the type of embankment construction may be one of the different numerical values that are appropriately assigned in advance to, for example, "valley filling embankment" or "belly-filling embankment."

The average inclination angle may be, for example, data on the average inclination angle of the ground surface calculated on a mesh basis. The value of the average inclination angle may be the calculated average inclination angle of the ground surface.

The average precipitation may be, for example, data on the average precipitation on the ground surface calculated on a mesh basis. The value of the average precipitation may be the calculated average precipitation on the ground surface.

The surface geology may be data representing the geology of the surface layer of the earth's surface (in other words, the type of geology). The type of geology may be determined in advance. Each type of geology may be assigned a different numerical value in advance. The value of the surface geology may be any one of the numerical values appropriately assigned to each geology in advance.

The steep slope designation may be data indicating whether or not the area has been designated as a steep slope by, for example, a local government. The steep slope designation value may be, for example, a numerical value indicating that the area has been designated as a steep slope, or a numerical value indicating that the area has not been designated as a steep slope. These numerical values may be different from each other and may be determined in advance as appropriate.

The landslide disaster warning area designation may indicate, for example, whether or not an area has been designated as a landslide disaster warning area by a local government or the like. The value of the landslide disaster warning area designation may be, for example, a numerical value indicating that the area has been designated as a landslide disaster warning area, or a numerical value indicating that the area has not been designated as a landslide disaster warning area. These numerical values may be different from each other and may be determined in advance.

The liquefaction risk may be, for example, data representing the degree of risk that land will liquefy. The liquefaction risk value may be a number representing the degree of risk that land will liquefy. The liquefaction risk value may be one of a number of different numbers each representing a different degree. The numbers representing the degree of risk may be determined as appropriate in advance.

The possibility of installing a rainwater infiltration manhole may be information indicating whether or not it can be installed based on an "infiltration facility installation judgment map" that shows the results of a judgment as to whether or not an infiltration facility can be installed based on the topography, soil quality, and groundwater level. The value of whether or not a rainwater infiltration manhole can be installed may be a number indicating that installation is possible, or a number indicating that installation is not possible. These numbers may be different from each other and may be determined in advance as appropriate.

The shaking susceptibility during an earthquake may be, for example, data representing the degree of shaking susceptibility of the ground surface when an earthquake occurs. The value of the shaking susceptibility during an earthquake may be a numerical value representing the degree of shaking susceptibility of the ground surface when an earthquake occurs. The value of the shaking susceptibility during an earthquake may be any one of a number of numerical values representing the degree of shaking susceptibility of the ground surface when an earthquake occurs. The numerical value representing the degree of shaking susceptibility of the ground surface may be determined as appropriate in advance.

Lowland with drainage difficulties may indicate whether the land is lowland with drainage difficulties, estimated, for example, from the land's altitude or the difference in altitude from the surrounding area. The value of lowland with drainage difficulties may be a number indicating that the land is lowland with drainage difficulties, or a number indicating that the land is not lowland with drainage difficulties. These numbers may be determined as appropriate in advance.

Urban land use may be a type of land use in an area designated as a city. The type of land use in urban land use may be determined, for example, from a satellite photograph. A type of land use selected from a plurality of predefined types may be set for an area included in an urban region. A different numerical value may be assigned to each of the plurality of predefined types as appropriate. The value of the type of land use set for an area may be the numerical value assigned to that type.

The natural terrain classification may be, for example, a type of terrain in a place that is not a structure constructed by humans. A plurality of terrain types that can be set as the natural terrain classification may be determined in advance as appropriate. A terrain type selected from a plurality of terrain types that are determined in advance as types that can be set as the natural terrain classification may be set for an area in which the natural terrain classification is set. A different numerical value may be assigned to each of the plurality of types. The terrain value in the natural terrain classification set for an area may be a numerical value assigned to the terrain type set for that area.

The artificial terrain classification may be, for example, a type of terrain in a place where the terrain has been altered by humans or where a structure has been constructed by humans. A plurality of types of terrain that can be set as an artificial terrain classification may be determined as appropriate in advance. A type of terrain selected from a plurality of types of terrain that have been determined in advance as types that can be set as an artificial terrain classification may be set for an area in which an artificial terrain classification is set. A different numerical value may be assigned to each of the plurality of types. The value of the terrain in the artificial terrain classification set for an area may be a numerical value assigned to the type of terrain set for that area.

The surface geology may represent, for example, the type of soil at the earth's surface. A plurality of soil types may be determined as appropriate in advance. A different numerical value, which is determined as appropriate in advance, may be assigned to each of the plurality of soil types. For example, a soil type based on the results of an investigation may be set for an area. The value of the surface geology of an area may be the numerical value assigned to the soil type set for that area.

Second Embodiment
Next, a second embodiment of the present disclosure will be described in detail with reference to the drawings.

<<Configuration>>
1 is a block diagram showing an example of the configuration of a display system 1 according to this embodiment. The display system 1 according to this embodiment has the same configuration as the display system 1 according to the first embodiment. The following description will focus on the differences between the display system 1 according to this embodiment and the display system 1 according to the first embodiment.

<<User Device 200>>
The configuration of the user device 200 of this embodiment is the same as the configuration of the user device 200 of the first embodiment. The input unit 210 and the display unit 220 of this embodiment have the same functions as the input unit 210 and the display unit 220 of the first embodiment, respectively. The following describes the differences in the user device 200 between this embodiment and the first embodiment.

<<Input Unit 210>>
The input unit 210 of this embodiment accepts a range specification that specifies a target range on the earth's surface and a geospatial information specification that specifies a value of geospatial information, both input by the user.

In this embodiment, the geospatial information designation is, for example, information indicating a point on a map. The value of the geospatial information designated by the geospatial information designation is the value of a predetermined type of geospatial information of a location corresponding to the point on the map indicated by the geospatial information designation. The predetermined type of geospatial information is, for example, a combination of one or more of urban land use, natural terrain classification, and artificial terrain classification that are predetermined. Below, a case will be described in which the geospatial information designation is information indicating a point on a map. In this case, the geospatial information designation is information that identifies the position of the point designated by the user on the map (for example, coordinates in a coordinate system set on the screen, or coordinates in a coordinate system set on the map).

The input unit 210 transmits the received range specification and geospatial information specification to the reception unit 110 of the display control device 100.

<<Display control device 100>>
The configuration of the display control device 100 of this embodiment is the same as the configuration of the display control device 100 of the first embodiment. Each component of the display control device 100 of this embodiment has the same function as the component having the same reference numeral and the same name in the display control device 100 of the first embodiment. The differences between the display control device 100 of this embodiment and the first embodiment will be described below.

<<Reception Unit 110>>
The receiving unit 110 of this embodiment receives a range specification and a geospatial information specification from the input unit 210 of the user device 200. The receiving unit 110 sends the range specification and the geospatial information specification to the determining unit 120.

<<Determination Unit 120>>
The determination unit 120 receives a range designation and a geospatial information designation from the reception unit 110. As described above, in the description of this embodiment, the geospatial information designation is information indicating a point on a map. The value of the geospatial information indicated by the geospatial information designation is a value of a predetermined type of geospatial information at a point corresponding to the point on the map represented by the geospatial information designation. In addition to the target range and the shape of the target range indicated by the range designation, the determination unit 120 determines information (e.g., latitude and longitude) indicating the position of a point (hereinafter referred to as a reference point) corresponding to the point on the map represented by the geospatial information designation.

The determination unit 120 sends the target range, information representing the shape of the target range, and information representing the position of the reference point to the extraction unit 130.

<<Extraction Unit 130>>
The extraction unit 130 receives from the determination unit 120 the target range, information representing the shape of the target range, and information representing the positions of the reference points.

The extraction unit 130 extracts measurement points (i.e., measurement points included in the target range) from which measurement data is obtained, which are included in the target range, from the measurement data stored in the measurement data storage unit 160. The extraction unit 130 reads the value of a predetermined type of geospatial information at each measurement point included in the target range from the geospatial information storage device 300 via the reading unit 170. The extraction unit 130 further reads the value of a predetermined type of geospatial information at a reference point from the geospatial information storage device 300 via the reading unit 170. The extraction unit 130 identifies a measurement point included in the target range that has a value of a predetermined type of geospatial information that is the same as the value of the predetermined type of geospatial information at the reference point. The extraction unit 130 extracts the measurement data at the identified measurement point from the measurement data stored in the measurement data storage unit 160. In the target range, an area in which the value of the predetermined type of geospatial information is the same as the value of the predetermined type of geospatial information at the reference point is referred to as a similar area in the following description. In other words, the extraction unit 130 extracts the measurement data of the measurement points included in the similar region. The extraction unit 130 sends the target range, information representing the shape of the target range, and the measurement data of the measurement points included in the similar region to the generation unit 140. The extraction unit 130 sends information representing the positions of the reference points to the generation unit 140.

The extraction unit 130 extracts measurement data at measurement points included in the target range from the measurement data stored in the measurement data storage unit 160. The extraction unit 130 sends the target range, information representing the shape of the target range, the measurement data at the measurement points included in the target range, and information representing the positions of the reference points to the generation unit 140.

<<Generation Unit 140>>
The generating unit 140 receives the target range, information representing the shape of the target range, measurement data of the measurement points included in the similar area, and information representing the positions of the reference points from the extracting unit 130. The generating unit 140 generates an output display according to the shape of the target range based on the measurement data of the measurement points included in the similar area.

The generating unit 140 further generates information representing similar areas in the target range based on information of the measurement points included in the measurement data of the measurement points included in the similar areas. The generating unit 140 uses the geospatial information stored in the geospatial information storage device 300 to identify similar areas having values of a predetermined type of geospatial information at the positions of the reference points, and generates information representing the similar areas.

The generation unit 140 sends information representing the target range, the generated output display, and information representing the similarity area to the output unit 150.

<<Output Unit 150>>
The output unit 150 receives information representing the target range, the output display, and information representing the similar region from the generation unit 140. The output unit 150 superimposes a figure representing the target range at a position on the map corresponding to the target range. The output unit 150 changes the color of the region included in the region on the map corresponding to the similar region to a predetermined color.

The output unit 150, similar to the output unit 150 of the first embodiment, transmits data representing the map and data representing the output display to the user device 200.

<Operation>
Next, the operation of the display control device 100 of this embodiment will be described in detail with reference to the drawings.

Figures 3A and 3B are flowcharts showing a first example of operation of the display control device 100 of this embodiment.

In the example shown in FIG. 3A, in steps S101 and S102, the display control device 100 performs operations similar to those of the display control device 100 of the first embodiment at steps S101 and S102 shown in FIG. 2. Next, the reception unit 110 receives a geospatial information designation (step S203). In steps S104 and S105, the display control device 100 performs operations similar to those of the display control device 100 of the first embodiment at steps S104 and S105 shown in FIG. 2. Next, the extraction unit 130 reads out the values of the geospatial information of the measurement points included in the target range (step S206). After the operation of step S206, the display control device 100 performs the operation of step S207 shown in FIG. 3B.

The extraction unit 130 extracts measurement points having the value of the geospatial information specified by the geospatial information specification from the measurement points included in the target range (i.e., measurement points included in the similar area) (step S207). Next, the extraction unit 130 extracts the variation in the height of the ground surface of the measurement points included in the similar area (step S208). Specifically, the extraction unit 130 extracts the measurement data of the measurement points included in the similar area from the measurement data stored in the measurement data storage unit 160. Next, the generation unit 140 generates an output display of a type associated with the specified figure based on the variation in the height of the ground surface of the measurement points included in the similar area (in other words, the measurement data of the measurement points included in the similar area) (step S209). In step S110, the display control device 100 performs an operation similar to the operation of step S110 shown in FIG. 2 of the display control device 100 of the first embodiment.

4A and 4B are flowcharts showing a second example of the operation of the display control device 100 of this embodiment. The display control device 100 may perform the operation shown in Figs. 4A and 4B instead of the operation shown in Figs. 3A and 3B.

The operation of each step shown in FIG. 4A is the same as the operation of each step shown in FIG. 3A. After the operation of each step shown in FIG. 4A, the display control device 100 of this embodiment performs the operation of step S107 shown in FIG. 4B. In step S107, the display control device 100 performs the same operation as the operation of step S107 shown in FIG. 2 of the display control device 100 of the first embodiment. Next, the extraction unit 130 extracts measurement points (i.e., measurement points included in the similar area) having a value of geospatial information specified by the geospatial information specification (step S218). Next, the generation unit 140 generates an output display of a type associated with the specified figure based on the variation in the height of the ground surface of the measurement points included in the similar area among the variation in height (in other words, the measurement data) read out in step S107 (step S209). In step S110, the display control device 100 performs the same operation as the operation of step S110 shown in FIG. 2 of the display control device 100 of the first embodiment.

＜Effects＞
This embodiment has the same effects as the first embodiment, for the same reasons as those for the first embodiment.

<<First Modification of the Second Embodiment>>
The geospatial information designation may be, for example, a combination of information representing the type of geospatial information and a value of the geospatial information. The geospatial information designation may be, for example, a value of a predetermined type of geospatial information. The predetermined type of geospatial information is, for example, a combination of one or more of urban land use, natural terrain classification, and artificial terrain classification. The predetermined type of geospatial information may be another type of geospatial information.

The target range may be the range of the earth's surface displayed as a map. In that case, the input unit 210 does not need to accept a range specification.

<<Third Modification of the Second Embodiment>>
The extraction unit 130 may generate information representing the similar regions in a manner similar to that used by the generation unit 140 described above, and send the generated information representing the similar regions to the generation unit 140. The generation unit 140 may receive the information representing the similar regions from the extraction unit 130.

In addition, when the output display is a display including information on the height and topography included in the target range, such as the above-mentioned bird's-eye view, the generation unit 140 may generate an output display representing the range of the similar area. An example will be described in which the output display is, for example, the above-mentioned bird's-eye view. When a point corresponding to a pixel of the bird's-eye view is included in the similar area, the generation unit 140 may set the pixel value of the pixel to a pixel value based on the amount of change in height. When a point corresponding to a pixel of the bird's-eye view is not included in the similar area, the generation unit 140 may set the pixel value of the pixel to a predetermined pixel value (for example, a pixel value representing no displacement).

In addition, when the extraction unit 130 is configured to extract measurement data at measurement points included in the target range, the extraction unit 130 sends measurement data at measurement points included in the target range, not in the similar area, to the generation unit 140. In this case, the extraction unit 130 sends the target range, information representing the shape of the target range, measurement data at measurement points included in the target range, and information representing the position of the reference point to the generation unit 140. Then, the generation unit 140 receives the target range, information representing the shape of the target range, measurement data at measurement points included in the target range, and information representing the position of the reference point from the extraction unit 130. In this case, the generation unit 140 may read values of a predetermined type of geospatial information at the measurement points included in the target range and the reference point from the geospatial information storage device 300 via the reading unit 170. Then, the generation unit 140 extracts measurement points whose values of the predetermined type of geospatial information are the same as the values of the geospatial information at the reference point from the measurement points included in the received target range. In other words, the generating unit 140 extracts the measurement points included in the similar region from the measurement points included in the target range. The generating unit 140 may specify the similar region as described above. Then, the generating unit 140 generates an output display according to the shape of the target range based on the measurement data of the measurement points included in the similar region.

Third Embodiment
Next, a third embodiment of the present disclosure will be described in detail with reference to the drawings.

<<Configuration>>
FIG. 5 is a block diagram showing an example of the configuration of a display control device 101 according to this embodiment.

In the example shown in FIG. 5, the display control device 101 includes a reception unit 110, a determination unit 120, an extraction unit 130, a generation unit 140, and an output unit 150. The reception unit 110 receives a range specification that specifies a target range on the earth's surface. The determination unit 120 determines the target range specified by the range specification. The extraction unit 130 extracts the variation in height of the earth's surface measured in the target range. The generation unit 140 generates an output display based on the extracted variation. The output unit 150 outputs information representing the output display.

The reception unit 110, the judgment unit 120, the extraction unit 130, the generation unit 140, and the output unit 150 operate in the same manner as the reception unit 110, the judgment unit 120, the extraction unit 130, the generation unit 140, and the output unit 150 of the first or second embodiment, respectively.

<< Operation >>
FIG. 6 is a flowchart showing an example of the operation of the display control device 101 according to this embodiment. In the example shown in FIG. 6, first, the receiving unit 110 receives a range specification that specifies a target range on the ground surface (S302). Next, the determining unit 120 determines the target range on the ground surface specified by the range specification (step S305). Next, the extracting unit 130 extracts the variation in the height of the ground surface measured in the target range (step S307). The generating unit 140 generates an output display based on the extracted variation (step S309). Then, the output unit 150 outputs information representing the generated output display (step S310).

＜＜Effects＞＞
This embodiment has the same effects as the first embodiment, for the same reasons as those for the first embodiment.

<Other embodiments>
The display control device 100, the display control device 101, the user device 200, and the geospatial information storage device 300 can each be realized by a computer including a memory in which a program read from a storage medium is loaded and a processor that executes the program. The computer may be realized by a combination of multiple computers connected to each other. The display control device 100, the display control device 101, the user device 200, and the geospatial information storage device 300 can each be realized by dedicated hardware. The dedicated hardware may be realized by, for example, a circuit or multiple circuits connected to each other so as to be able to communicate with each other. The display control device 100, the display control device 101, the user device 200, and the geospatial information storage device 300 can each be realized by a combination of the above-mentioned computer and dedicated hardware.

FIG. 7 is a diagram showing an example of a hardware configuration of a computer 1000 capable of realizing each device according to an embodiment of the present disclosure. Referring to FIG. 7, the computer 1000 includes a processor 1001, a memory 1002, a storage device 1003, and an I/O (Input/Output) interface 1004. The computer 1000 can also access a storage medium 1005. The memory 1002 and the storage device 1003 are, for example, storage devices such as a RAM (Random Access Memory) or a hard disk. The storage medium 1005 is, for example, a storage device such as a RAM or a hard disk, a ROM (Read Only Memory), or a portable storage medium. The storage device 1003 may be the storage medium 1005. The processor 1001 can read and write data and programs from the memory 1002 and the storage device 1003. The processor 1001 can access, for example, other devices via the I/O interface 1004. The processor 1001 can access a storage medium 1005. The storage medium 1005 stores a program that causes the computer 1000 to operate as the display control device 100. The storage medium 1005 may also store a program that causes the computer 1000 to operate as the display control device 101. The storage medium 1005 may also store a program that causes the computer 1000 to operate as the user device 200. The storage medium 1005 may also store a program that causes the computer 1000 to operate as the geospatial information storage device 300.

The processor 1001 loads a program stored in the storage medium 1005 into the memory 1002. Then, the processor 1001 executes the program loaded into the memory 1002, causing the computer 1000 to operate, for example, as a display control device 100, a display control device 100, a user device 200, or a geospatial information storage device 300.

The reception unit 110, the determination unit 120, the extraction unit 130, the generation unit 140, the output unit 150, the readout unit 170, the input unit 210, the display unit 220, and the input/output unit 320 can be realized, for example, by a processor 1001 that executes a program loaded into the memory 1002. The measurement data storage unit 160, the input unit 210, the display unit 220, and the geospatial information storage unit 310 can be realized by a memory 1002 or a storage device 1003 such as a hard disk device included in the computer 1000. Some or all of the reception unit 110, the determination unit 120, the extraction unit 130, the generation unit 140, the output unit 150, the measurement data storage unit 160, the readout unit 170, the input unit 210, the display unit 220, the geospatial information storage unit 310, and the input/output unit 320 can also be realized by a dedicated circuit.

<Additional Notes>
Furthermore, some or all of the above-described embodiments can be described as, but are not limited to, the following supplementary notes.

(Appendix 1)
A receiving means for receiving a range designation that designates a target range on the earth's surface;
A determination means for determining the target range specified by the range specification;
extraction means for extracting a variation in height of the ground surface measured in the target range;
generating means for generating an output display based on the extracted variations;
an output means for outputting information representing the output display;
A display control device comprising:

(Appendix 2)
the determining means determines a designated figure represented by the range designation from a plurality of figures each associated with one or more display types, and determines the target range designated by the designated figure;
The display control device according to claim 1, wherein the generating means generates the output display of a type associated with the specified figure.

(Appendix 3)
The receiving means further receives geospatial information designation that designates a value of a predetermined type of geospatial information;
The display control device according to claim 1 or 2, wherein the generating means generates the output display based on the variation of a portion of the target range having the value specified by the geospatial information specification.

(Appendix 4)
The display control device according to any one of appendixes 1 to 3, wherein the generating means generates, as the output display based on the variation in a target range specified by the range specification having an area, an overhead view based on the height of the ground surface in the target range, where the pixel value of a pixel is based on the magnitude of variation in the height of the point on the ground surface corresponding to the pixel.

(Appendix 5)
The display control device according to any one of appendix 1 to 4, wherein the generation means generates at least one of the output display representing the fluctuation of the height of the ground surface in the target range over a predetermined period of the past, the output display representing statistical information of the fluctuation of the height of the ground surface in the target range, and the output display in which the fluctuation of the height of the ground surface in the target range is emphasized.

(Appendix 6)
the output means outputs a map representing the ground surface to which an expression representing at least one of a variation in height of the ground surface and a value of a predetermined type of geospatial information of the ground surface is added;
the accepting means accepts the range designation that designates the target range by a range on the output map,
The display control device according to any one of claims 1 to 5, wherein the determination means determines the target range that corresponds to the range specified by the range specification.

(Appendix 7)
Accepts a range specification that specifies the target area on the Earth's surface,
determining the target range specified by the range specification;
extracting variations in height of the ground surface measured in the range of interest;
generating an output display based on the extracted variations;
outputting information representative of the output display;
Display control method.

(Appendix 8)
determining a designated figure represented by the range designation from among a plurality of figures each associated with one or more display types, and determining the target range designated by the designated figure;
8. The display control method according to claim 7, further comprising: generating the output display of a type associated with the specified shape.

(Appendix 9)
further accepting a geospatial information specification that specifies a value of the predetermined type of geospatial information;
9. The display control method according to claim 7 or 8, further comprising generating the output display based on the variation of a portion of the target range having the value specified by the geospatial information specification.

(Appendix 10)
A display control method as described in any one of appendix 7 to 9, in which an overhead view based on the height of the ground surface in the target range, where the pixel value of a pixel is based on the magnitude of the fluctuation in the height of the point on the ground surface corresponding to the pixel, is generated as the output display based on the fluctuation in the target range specified by the range specification having an area.

(Appendix 11)
A display control method as described in any one of appendices 7 to 10, generating at least one of the output display representing the fluctuation of the height of the ground surface in the target range over a specified period of the past, the output display representing statistical information of the fluctuation of the height of the ground surface in the target range, and the output display in which the fluctuation of the height of the ground surface in the target range is emphasized.

(Appendix 12)
outputting a map representing the ground surface including a representation of at least one of a variation in height of the ground surface and a value of a predetermined type of geospatial information of the ground surface;
accepting the range designation that designates the target range based on a range on the output map;
The display control method according to any one of appendices 7 to 11, further comprising determining a target range that corresponds to the range specified by the range specification.

(Appendix 13)
A reception process for receiving a range specification that specifies a target range on the earth's surface;
a determination process for determining the target range specified by the range specification;
an extraction process for extracting a variation in height of the ground surface measured in the target range;
a generation process for generating an output display based on the extracted variations;
an output process for outputting information representing the output display;
A storage medium that stores a program that causes a computer to execute the above.

(Appendix 14)
the determination process includes determining a designated figure represented by the range designation from a plurality of figures each associated with one or more display types, and determining the target range designated by the designated figure;
14. The storage medium of claim 13, wherein the generating process generates the output display of a type associated with the specified shape.

(Appendix 15)
The reception process further receives geospatial information designation that designates a value of a predetermined type of geospatial information;
15. The storage medium of claim 13, wherein the generating process generates the output display based on the variation of a portion of the target range having the value specified by the geospatial information specification.

(Appendix 16)
The generation process generates an overhead view based on the height of the ground surface in the target range, where the pixel value of a pixel is based on the magnitude of the fluctuation in the height of the point on the ground surface corresponding to the pixel, as the output display based on the fluctuation in the target range specified by the range specification having an area.

(Appendix 17)
The generation process generates at least one of the output display representing the fluctuation of the height of the ground surface in the target range over a predetermined period of the past, the output display representing statistical information of the fluctuation of the height of the ground surface in the target range, and the output display in which the fluctuation of the height of the ground surface in the target range is emphasized.

(Appendix 18)
the output process outputs a map representing the ground surface to which an expression representing at least one of a variation in height of the ground surface and a value of a predetermined type of geospatial information of the ground surface is added;
The reception process receives the range designation that designates the target range by a range on the output map,
The storage medium according to any one of appendices 13 to 17, wherein the determination process determines the target range that corresponds to the range specified by the range specification.

Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above embodiments. Various modifications that can be understood by a person skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

REFERENCE SIGNS LIST 100 Display control device 101 Display control device 110 Reception unit 120 Determination unit 130 Extraction unit 140 Generation unit 150 Output unit 160 Measurement data storage unit 170 Readout unit 200 User device 210 Input unit 220 Display unit 300 Geospatial information storage device 310 Geospatial information storage unit 320 Input/output unit 1000 Computer 1001 Processor 1002 Memory 1003 Storage device 1004 I/O interface 1005 Storage medium

Claims (10)

a receiving means for receiving a range designation that designates a target range of a shape of a figure drawn on the ground surface by the line or the point;
a determining means for determining whether the shape of the target range designated by the range designation is one of predetermined types of figures ;
an extraction means for extracting a variation in height of the ground surface measured in the target range of the range on the ground surface represented by the determined type of figure ;
generating means for generating an output display based on the extracted variations;
an output means for outputting information representing the output display;
A display control device comprising: the determining means determines a designated figure representing the figure of the range designation from a plurality of figures each associated with one or more display types, and determines the target range of the shape of the designated figure designated by the designated figure;
The display control device according to claim 1 , wherein the generating means generates the output display representing the variation by a diagram of a type associated with the specified graphic. The receiving means further receives geospatial information designation that designates a value of a predetermined type of geospatial information;
The display control device according to claim 1 or 2, wherein the generating means generates the output display based on the variation of a portion of the target range having the value specified by the geospatial information specification. The display control device according to any one of claims 1 to 3, wherein the generating means generates, as the output display based on the variation in the target range specified by the range specification having an area, an overhead view based on the height of the ground surface in the target range, where the pixel value of a pixel is based on the magnitude of the variation in the height of the point on the ground surface corresponding to the pixel. 5. The display control device according to claim 1, wherein the generating means generates at least one of the output display representing the fluctuation of the height of the ground surface in the target range over a predetermined period of the past, the output display representing statistical information of the fluctuation of the height of the ground surface in the target range, and the output display in which the fluctuation of the height of the ground surface in the target range is emphasized. the output means outputs a map representing the ground surface to which an expression representing at least one of a variation in height of the ground surface and a value of a predetermined type of geospatial information of the ground surface is added;
the accepting means accepts the range designation that designates the target range by a range on the output map,
The display control device according to claim 1 , wherein the determination means determines the target range that corresponds to the range specified by the range specification. Accepting a range specification that specifies a target range of a shape of a figure drawn by a line or a point on the ground surface by the line or the point;
determining whether the shape of the target range specified by the range specification is one of predetermined types of figures ;
extracting a variation in height of the ground surface measured in the target range of the range on the ground surface represented by the determined type of figure ;
generating an output display based on the extracted variations;
outputting information representative of the output display;
Display control method. determining a designated figure representing the figure of the range designation from among a plurality of figures each associated with one or more display types, and determining the target range of the shape of the designated figure designated by the designated figure;
The display control method according to claim 7 , further comprising generating the output display representing the variation by a diagram of a type associated with the specified figure. further accepting a geospatial information specification that specifies a value of the predetermined type of geospatial information;
The display control method of claim 7 or 8, further comprising generating the output display based on the variation in a portion of the target range having the value specified by the geospatial information specification. a receiving process for receiving a range designation for designating a target range of a shape of a figure drawn on the ground surface by the line or the point;
a determination process for determining whether the shape of the target range specified by the range specification is one of predetermined types of figures ;
an extraction process for extracting a variation in height of the ground surface measured in the target range of the range on the ground surface represented by the determined type of figure ;
a generation process for generating an output display based on the extracted variations;
an output process for outputting information representing the output display;
A program that causes a computer to execute the following.

Images