JP4785211B2 - Mid-mountainous area direct payment system support device, hilly and mountainous area direct payment system support method, and program - Google Patents

Description

  The present invention relates to an apparatus for supporting a mountain-mountainous area direct payment system.

  The hilly and mountainous area is an important area in terms of agriculture, nature conservation and landscape. However, since the hilly and mountainous areas are disadvantageous for agricultural production, agricultural productivity is low and abandonment of farming has become serious. Therefore, as a countermeasure against abandonment of cultivation, a system that encourages cultivation in mountainous areas, such as the direct payment system in mountainous areas (hereinafter simply referred to as “direct payment system in mountainous areas”) has been established ( For example, see http://www.maff.go.jp/j/nousin/tyusan/siharai_seido/index.html).

  The object of the direct payment system for mountainous areas is a group of agricultural land whose inclination angle is more than a threshold value. A group of agricultural land is one having an agricultural land area of 1 ha or more, or a total area of a plurality of housing estates having farming integrity. A housing complex is a single farmland or a plurality of farmlands that are adjacent to each other directly or on farm roads or ridges. The tilt angle is measured for each measurement unit. The measurement may be performed according to the figure. In addition, when one measurement unit is set for one estate, the inclination angle measured in the measurement unit becomes the inclination angle of the estate. On the other hand, when one estate includes two or more measurement units, the inclination angle of the estate is calculated by weighted averaging the inclination angles of each measurement unit with the agricultural land area belonging to each measurement unit.

  In addition, as a related technique, an apparatus for performing processing relating to calculation of surveying has already been filed by the applicant of the present application (see, for example, Patent Document 1).

JP 2003-280521 A

  As described above, when the inclination angle is measured in the measurement unit, an arrow figure is set at a position where the inclination angle is measured. At that time, the arrow graphic must be set in a direction that is substantially perpendicular to the direction of the contour line, so that the higher altitude is the starting point and the lower one is the ending point. In other words, the arrowhead of the arrow had to be the lower elevation.

  However, in the topographic map where the contour lines are displayed, the judgment of the height may be wrong, and the direction of the arrow may be reversed. Because, when calculating the tilt angle, it is only necessary to know the length of the arrow figure and the absolute value of the height difference between the two end points, so which end side of the arrow figure has the higher altitude, Because I didn't have to worry about it. Specifically, when calculating the inclination angle on a topographic map with contour lines displayed, measure the length of the arrow figure on the map and multiply the length by the inverse of the scale to obtain the arrow. The actual distance corresponding to the figure can be calculated. In addition, by counting the number of intervals between contour lines crossed by the arrow graphic and multiplying the counted number by the height difference according to the contour line interval, the height difference between the two end points of the arrow graphic can be calculated. Therefore, the inclination angle could be calculated using them.

  The present invention has been made to solve the above-described problem, and an object thereof is to provide an intermediate and mountainous area direct payment system support device and the like that can set an appropriate arrow figure indicating a position for calculating an inclination angle. And

  In order to achieve the above object, an intermediate and mountainous area direct payment system support device according to the present invention includes a map information storage unit for storing map information, which is map information of a plane having three-dimensional coordinate information, The accepting unit accepts designation of the positions of the first point and the second point, which are the end points of the line segment for calculating the tilt angle, and the coordinate information of the map information. Using the elevation value acquisition unit that acquires the elevation value that is the coordinate value in the height direction of the point 1 and the second point, and the elevation value acquired by the elevation value acquisition unit, the first point and the second point Using the judgment part for judging the height of the first and second judgment points, a directed line segment starting from the higher point of the first point and the second point and ending at the lower point The arrow graphic generator that generates the arrow graphic, the map of the map information plane, and the arrow graphic generator An output unit for outputting the arrow shape that forms, those having a.

  With such a configuration, by simply determining the positions of the first and second points without worrying about the altitude, an arrow figure with the higher altitude as the start point and the lower altitude as the end point is appropriately set. Will be able to. Therefore, convenience for the user is improved.

Moreover, in the intermediate and mountainous area direct payment system support apparatus by this invention, on the map of a plane, the distance of the 1st point and 2nd point which the reception part received, and the 1st point which the altitude value acquisition part acquired And an inclination angle calculation unit that calculates an inclination angle between the first point and the second point using the altitude value of the second point, and an inclination angle that outputs the inclination angle calculated by the inclination angle calculation unit And an output unit.
With such a configuration, the inclination angle at the position of the arrow graphic can be automatically calculated.

  The intermediate and mountainous area direct payment system support apparatus according to the present invention further includes a topographic map information storage unit that stores topographic map information that is information of a topographic map having contour lines, and the output unit is a map of a plane of map information And the topographic map of the topographic map information may be superimposed and output.

  With such a configuration, it is possible to set the positions of the first and second points that are both end points of the arrow graphic while viewing the contour lines of the topographic map. Specifically, by referring to the contour line, as described above, the positions of the first and second points can be designated so that the arrow graphic is substantially orthogonal to the contour line.

  In addition, the intermediate and mountainous area direct payment system support method according to the present invention includes a map information storage unit that stores map information that is map information of a plane having three-dimensional coordinate information, a reception unit, an elevation value acquisition unit, The intermediate and mountainous area direct payment system support method processed using the determination unit, the arrow graphic generation unit, and the output unit, wherein the output unit outputs a map of a map information plane. And a position designation acceptance in which the accepting unit accepts designation of the positions of the first point and the second point which are the end points of the line segment for calculating the inclination angle on the map of the plane output in the first output step. Step and an altitude value at which the altitude value acquisition unit acquires the altitude value which is the coordinate value in the height direction of the first point and the second point received in the position designation receiving step using the coordinate information of the map information The acquisition step and the judgment unit obtain the altitude value The determination step of determining the height of the first point and the second point using the acquired elevation value, and the arrow graphic generation unit uses the determination result in the determination step to determine the first point and the second point Among the points, an arrow graphic generation step for generating an arrow graphic that is a directed line segment starting from the higher point and ending at the lower point, and the arrow graphic generated by the output unit in the arrow graphic generation step And a second output step for outputting.

  According to the intermediate and mountainous area direct payment system support device according to the present invention, the position of the first and second points is determined without worrying about the altitude. The arrow figure as the end point can be set appropriately.

The block diagram which shows the structure of the intermediate and mountainous area direct payment system assistance apparatus by Embodiment 1 of this invention. The flowchart which shows operation | movement of the intermediate and mountainous area direct payment system assistance apparatus by the embodiment The flowchart which shows operation | movement of the intermediate and mountainous area direct payment system assistance apparatus by the embodiment The figure for demonstrating calculation of the inclination-angle in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the display in the embodiment The figure which shows an example of the display in the embodiment Schematic diagram showing an example of the appearance of the computer system in the embodiment The figure which shows an example of a structure of the computer system in the embodiment

  Hereinafter, an intermediate and mountainous area direct payment system support apparatus according to the present invention will be described using embodiments. In the following embodiments, components and steps denoted by the same reference numerals are the same or equivalent, and repetitive description may be omitted.

(Embodiment 1)
An intermediate and mountainous area direct payment system support apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings. The intermediate and mountainous area direct payment system support apparatus according to the present embodiment determines the position of the first and second points without worrying about the altitude, and starts with the higher altitude as the start point and ends with the lower altitude as the end point. The arrow figure can be set appropriately.

  FIG. 1 is a block diagram showing a configuration of an intermediate and mountainous area direct payment system support apparatus 1 according to the present embodiment. The intermediate and mountainous area direct payment system support device 1 according to the present embodiment includes a map information storage unit 11, a topographic map information storage unit 12, an output unit 13, an arrow graphic storage unit 14, a reception unit 15, and an elevation value. The acquisition unit 16, the determination unit 17, the arrow graphic generation unit 18, the inclination angle calculation unit 19, the inclination angle output unit 20, and the inclination angle storage unit 21 are provided.

  The map information storage unit 11 stores map information that is information on a map of a plane having three-dimensional coordinate information. This map information has a plane map image. The image may be raster data (bitmap data) or vector data, for example. The plane map image included in the map information is preferably an aerial photograph (aerial photograph). This is because aerial photographs can distinguish paddy fields and fields in other mountainous areas from other roads and shores on a map. As will be described later, the threshold value used for the classification of steep slopes and gentle slopes is different between paddy fields and fields. Therefore, if paddy fields and fields can be distinguished on a map, convenience is improved. The aerial photograph may be an ortho image. Note that satellite photographs may be used instead of aerial photographs as long as paddy fields and fields can be distinguished. In the present embodiment, a case will be described in which a plane map image included in map information is an aerial photograph. Also, having three-dimensional coordinate information means that the coordinate value of the plane at the desired position and the coordinate value in the height direction can be known in the map image of the plane. . The coordinate value of the plane may be, for example, latitude / longitude, or a coordinate value based on a certain position. Moreover, the coordinate value of a height direction is an altitude, for example. The altitude is usually based on the sea level, but may be based on other heights. Moreover, the method in which map information has three-dimensional coordinate information is not ask | required. For example, it may be data of a digital elevation model (DEM: Digital Elevation Model) having coordinate values in the height direction for each equally spaced grid point, or a digital terrain model (DTM: Digital Terrain Model). It may be TIN (Triangulated Irregular Network) data in which the sampling points are selected so as to reflect the features of the terrain well. In any case, the elevation values of points other than the sample points are calculated by interpolating the sample points. For example, in the case of TIN data, when calculating the altitude value at a certain position, the altitude value is calculated by interpolating the altitude values of the sample points constituting the smallest triangle including the position. It should be noted that a method for calculating the elevation value of an arbitrary point by interpolating the elevation value of the sample point in this manner is already known, and a detailed description thereof will be omitted. Moreover, such map information is well-known as an online map, an electronic map, etc., The detailed description is abbreviate | omitted. Even if a planar map has three-dimensional coordinate information such as TIN data, the coordinate information is not displayed on the map. It is not usually possible to judge.

  In addition, the process in which map information is memorize | stored in the map information storage part 11 is not ask | required. For example, map information may be stored in the map information storage unit 11 via a recording medium, and map information transmitted via a communication line or the like is stored in the map information storage unit 11. May be. The storage in the map information storage unit 11 may be temporary storage in a RAM or the like, or may be long-term storage. The map information storage unit 11 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, an optical disk, etc.).

  The topographic map information storage unit 12 stores topographic map information that is information on topographic maps having contour lines. Similar to the map information, this topographic map information also has a planar map image. The map image of the plane is a topographic map having contour lines. The image may be raster data or vector data, for example. In addition, as will be described later, the topographic map of the topographic map information is output by being superimposed on the map of the map information plane, thereby indicating in which direction the contour lines are running on the map of the map information plane. It is to be able to know. Therefore, it is preferable that the corresponding positions of the topographic map of the topographic map information and the map of the map information plane can be superimposed. As such, if the corresponding positions of the topographic map and the planar map can be superimposed, that is, the corresponding contour lines of the topographic map information can be displayed on the planar map of the map information. If possible, the topographic map information may or may not have information regarding the coordinates of the plane. In the latter case, for example, there may be a case where the map area on the plane of the map information and the area of the topographic map of the topographic map information exactly match. In this case, the two positions are simply overlapped and the corresponding positions are overlapped.

  In addition, the process in which topographic map information is memorize | stored in the topographic map information storage part 12 is not ask | required. For example, the topographic map information may be stored in the topographic map information storage unit 12 via a recording medium, and the topographic map information transmitted via a communication line or the like is stored in the topographic map information storage unit 12. It may come to be. The storage in the topographic map information storage unit 12 may be a temporary storage in a RAM or the like, or may be a long-term storage. The topographic map information storage unit 12 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, an optical disk, etc.).

  The output unit 13 outputs a map of a plane of map information. Further, as described above, the output unit 13 outputs the map of the map information plane and the topographic map of the topographic map information in a superimposed manner. The output unit 13 also outputs an arrow graphic generated by an arrow graphic generation unit 18 described later. The arrow graphic is usually output on a map on a plane of map information. The output unit 13 may also output the positions of the first and second points received by the receiving unit 15 described later. This output is finally performed so that a person can visually grasp the output target. Therefore, this output may be displayed on a display device (for example, a CRT or a liquid crystal display), transmitted via a communication line to a predetermined device, printed by a printer, or stored in a recording medium. Or it may be delivered to other components. Even if the output is, for example, transmission via a communication line, storage in a recording medium, or delivery to another component, it is eventually displayed or printed as described above. Is preferred. In the present embodiment, the output unit 13 performs display on a display device and accumulates an arrow graphic in the arrow graphic storage unit 14. The output unit 13 may read and output the arrow graphic stored in the arrow graphic storage unit 14. The output unit 13 may or may not include an output device (for example, a display device or a printer). The output unit 13 may be realized by hardware, or may be realized by software such as a driver that drives these devices.

  As described above, the arrow graphic storage unit 14 stores the arrow graphic by the output unit 13. The arrow graphic stored in the arrow graphic storage unit 14 may be raster data, or may be vector data specifying the positions of the start point and the end point. The storage in the arrow graphic storage unit 14 may be temporary storage in a RAM or the like, or may be long-term storage. The arrow graphic storage unit 14 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, an optical disk, etc.). Further, for example, when an arrow graphic is added directly on the map of the map information plane, the map information storage unit 11 and the arrow graphic storage unit 14 are configured by the same recording medium. You may think. In that case, it may be considered that the area where the arrow graphic is stored is the arrow graphic storage unit 14.

  The accepting unit 15 accepts designation of the positions of the first point and the second point that are the end points of the line segment for calculating the tilt angle on the map of the plane of the map information. The designation of the position may be accepted by, for example, designating the position of the first point or the second point on the map on the map information plane by a pointing device such as a mouse. The receiving unit 15 may receive an instruction to move the positions of the first point and the second point once specified. In that case, it can be considered that the designation of the position after movement is accepted for the first point and the second point. In addition, the reception unit 15 may receive other instructions. For example, the reception unit 15 may receive an instruction on whether to output topographic map information.

  For example, the reception unit 15 may receive information input from an input device (for example, a keyboard, a mouse, a touch panel, etc.), or may receive information transmitted via a wired or wireless communication line. The accepting unit 15 may or may not include a device for accepting (for example, a modem or a network card). The receiving unit 15 may be realized by hardware, or may be realized by software such as a driver that drives a predetermined device.

  The elevation value acquisition unit 16 acquires the elevation value that is the coordinate value in the height direction of the first point and the second point received by the reception unit 15 using the coordinate information of the map information. As described above, the elevation value acquisition unit 16 may calculate the elevation values of the first point and the second point by interpolating the elevation values of the sampling points indicated by the coordinate information of the map information. This interpolation method is already known and will not be described in detail.

  The determination unit 17 determines the height of the first point and the second point using the elevation value acquired by the elevation value acquisition unit 16. That is, the determination unit 17 determines whether X <Y or X> Y when the elevation value of the first point is X and the elevation value of the second point is Y. For example, the determination unit 17 may determine whether or not X <Y, and if not, may determine that X> Y (the inequality sign may be reversed).

  The arrow graphic generation unit 18 uses the determination result of the determination unit 17 to direct the first point and the second point with a higher elevation point as a start point and a lower point as an end point. Generate an arrow shape that is the minute. As described above, the arrow graphic may be, for example, an image of raster data or vector data. In the former case, the image may be an arrow image on a transparent background (in this case, there may be information indicating where the image is displayed on the map), and map information The image of the arrow added directly on the map image may be used. In the latter case, for example, information indicating the position on the map of the start point and end point of the arrow (may be information specifying a pixel on the map or coordinate information such as latitude and longitude) It may be. As described above, the arrow graphic generated by the arrow graphic generation unit 18 may have any data structure as long as it can generate an arrow displayed on the map on the plane of the map information as a result. In the present embodiment, the arrow graphic generated by the arrow graphic generation unit 18 is displayed on the map on the plane of the map information and stored in the arrow graphic storage unit 14 by the output unit 13. As described above.

  The inclination angle calculation unit 19 calculates the distance between the first point and the second point received by the reception unit 15 and the first point and the second point acquired by the elevation value acquisition unit 16 on the planar map. An inclination angle between the first point and the second point is calculated using the altitude value. This inclination angle may be a fractional display or an angle display. That is, the tilt angle calculation unit 19 may calculate a tilt angle for fractional display, may calculate a tilt angle for angle display, or may calculate both tilt angles. The calculation of the tilt angle will be described later. Further, the inclination angle calculated by the inclination angle calculation unit 19 may be stored in a recording medium (not shown).

  The tilt angle output unit 20 outputs the tilt angle calculated by the tilt angle calculation unit 19. This output is performed because an output target is finally recognized by a person. Therefore, this output may be, for example, display on a display device (for example, a CRT or a liquid crystal display), transmission via a communication line to a predetermined device, printing by a printer, or sound from a speaker. It may be output, stored in a recording medium, or delivered to another component. Even if the output is, for example, transmission via a communication line, storage in a recording medium, or delivery to another component, as described above, it is eventually displayed or printed, It is preferable that audio is output. In the present embodiment, the tilt angle output unit 20 displays the tilt angle on the display device and accumulates the tilt angle in the tilt angle storage unit 21. The tilt angle output unit 20 may read and output the tilt angle stored in the tilt angle storage unit 21. In addition, the tilt angle output unit 20 may or may not include an output device (for example, a display device or a printer). Further, the tilt angle output unit 20 may be realized by hardware, or may be realized by software such as a driver for driving these devices.

  As described above, the tilt angle output unit 20 stores the tilt angle in the tilt angle storage unit 21. The storage in the tilt angle storage unit 21 may be temporary storage in a RAM or the like, or may be long-term storage. The inclination angle storage unit 21 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, an optical disk, etc.).

  Note that any two or more storage units of the map information storage unit 11, the topographic map information storage unit 12, the arrow graphic storage unit 14, and the inclination angle storage unit 21 may be realized by the same recording medium. Alternatively, it may be realized by a separate recording medium. In the former case, for example, an area storing map information is the map information storage unit 11, and an area storing topographic map information is the topographic map information storage unit 12.

Next, the operation of the intermediate and mountainous area direct payment system support apparatus 1 according to the present embodiment will be described with reference to the flowchart of FIG.
(Step S101) The intermediate and mountainous area direct payment system support apparatus 1 determines whether to start processing such as calculation of an inclination angle. If processing such as calculation of the tilt angle is started, the process proceeds to step S102. If not, the processing of step S101 is repeated until it is determined that the processing is started. Note that the processing in this step may be performed by any of the components shown in FIG. 1, or by other components not shown in FIG. 1, such as a control unit (not shown). Also good. Further, the intermediate and mountainous area direct payment system support device 1 determines that the processing such as the calculation of the inclination angle is started when the receiving unit 15 receives an instruction to start the processing such as the calculation of the inclination angle. Alternatively, it may be determined that processing such as calculation of the tilt angle is started at other timing.

  (Step S102) The output unit 13 reads a planar map from the map information storage unit 11 and displays it on the display. The area to be displayed may be designated by the user, for example, or may be determined in advance.

  (Step S103) The accepting unit 15 determines whether designation of the positions of the first and second points has been accepted. If accepted, the process proceeds to step S104, and if not, the process proceeds to step S105.

  (Step S104) The altitude value acquisition unit 16, the determination unit 17, the inclination angle calculation unit 19 and the like acquire an altitude value, make a determination, and calculate an inclination angle. Then, the process returns to step S103. Details of this processing will be described later with reference to the flowchart of FIG.

  (Step S105) The reception unit 15 determines whether an instruction to display a topographic map has been received. If an instruction to display a topographic map is received, the process proceeds to step S106, and if not, the process proceeds to step S107.

  (Step S106) The output unit 13 reads the topographic map from the topographic map information storage unit 12, and displays the topographic map on the display in a superimposed manner. In addition, as mentioned above, the output part 13 shall superimpose both so that the corresponding position of a topographic map and a planar map may overlap. Then, the process returns to step S103.

  (Step S107) The receiving unit 15 determines whether an instruction to hide the currently displayed topographic map has been received. If an instruction to hide the currently displayed topographic map is received, the process proceeds to step S108, and if not, the process proceeds to step S109.

  (Step S <b> 108) The output unit 13 cancels the display of the topographic map, and switches to display only the planar map read from the map information storage unit 11. Then, the process returns to step S103.

(Step S109) The intermediate and mountainous area direct payment system support apparatus 1 determines whether to end a series of processing such as display of map information and calculation of an inclination angle. If the process is to end, the process returns to step S101; otherwise, the process returns to step S103. Note that the processing in this step may be performed by any of the components shown in FIG. 1, or by other components not shown in FIG. 1, such as a control unit (not shown). Also good. Further, the intermediate and mountainous area direct payment system support device 1 may determine that the series of processing is to be ended when the receiving unit 15 receives an instruction to end the series of processing. It may be determined that the process is ended.
In the flowchart of FIG. 2, the process is terminated by powering off or a process termination interrupt.

FIG. 3 is a flowchart showing details of processing (step S104) such as creation of an arrow graphic in the flowchart of FIG.
(Step S201) The elevation value acquisition unit 16 acquires the elevation values corresponding to the positions of the first and second points received by the reception unit 15 using the coordinate information included in the map information. At this time, as described above, processing for interpolating the elevation values of the sampling points may be performed. The obtained elevation values of the first and second points may be stored in a recording medium (not shown).

  (Step S202) The determination unit 17 determines which of the elevation value of the first point and the elevation value of the second point is higher. The determination result may be stored on a recording medium (not shown).

  (Step S203) The arrow graphic generation unit 18 generates an arrow graphic from the higher one to the lower one of the first and second points.

  (Step S <b> 204) The output unit 13 displays the arrow graphic generated by the arrow graphic generation unit 18 on the map of the display and accumulates it in the arrow graphic storage unit 14.

  (Step S205) The tilt angle calculation unit 19 uses the distance between the first and second points received by the reception unit 15 and the elevation values of the first and second points acquired by the elevation value acquisition unit 16. The inclination angle at the position of the arrow graphic is calculated.

  (Step S <b> 206) The tilt angle output unit 20 displays the tilt angle calculated by the tilt angle calculation unit 19 on the display and accumulates it in the tilt angle storage unit 21. And it returns to the flowchart of FIG.

Here, the calculation of the tilt angle will be described with reference to FIG. FIG. 4 shows a vertical plane including the first and second points as viewed from a direction perpendicular to the plane. The inclination angle calculation unit 19 obtains the actual position corresponding to the first point and the second point by acquiring the positions on the map of the planes of the first and second points received by the reception unit 15. It is possible to know the distance between the corresponding actual positions (this distance is “the distance between the first point and the second point” in FIG. 4). For example, when the coordinate information included in the map information includes latitude / longitude information, the tilt angle calculation unit 19 uses the latitude / longitude of the first and second points, The distance to the second point can be calculated. In addition, the inclination angle calculation unit 19 measures the length of the first point and the second point on the map of the plane, and multiplies the length by the reciprocal of the scale of the map of the plane, for example. The distance between the first point and the second point may be calculated. Further, the inclination angle calculation unit 19 can calculate the height difference in FIG. 4 by calculating the absolute value of the difference between the elevation values of the first and second points acquired by the elevation value acquisition unit 16. Thereafter, the tilt angle calculation unit 19 can calculate the tilt angle θ of the angle display by the following equation.
Inclination angle θ = tan ⁻¹ (height difference / distance between the first point and the second point)

Further, the tilt angle calculation unit 19 can calculate the tilt angle A in fractional display by the following equation.
Inclination angle A = 1 / (distance between first point and second point / height difference)
However, in both the above-mentioned formulas, it is assumed that the units of lengths of “distance between the first point and the second point” and “height difference” are the same. For example, both may be in units of meters.

  In the intermediate and mountainous area direct payment system, in the case of paddy fields, if the slope is 1/20 or more, it is judged as a steep slope, if the slope is 1/100 or more, if it is less than 1/20, it is a gentle slope. It is judged that there is. Further, in the case of a field, if the slope is 15 ° or more, it is judged as a steep slope, and if the slope is 8 ° or more and less than 15 °, it is judged as a gentle slope. Note that threshold values such as 1/20, 1/100, 15 °, and 8 ° may be changed.

Next, the operation of the intermediate and mountainous area direct payment system support apparatus 1 according to the present embodiment will be described using a specific example.
First, it is assumed that the user inputs an instruction to start processing such as calculation of an inclination angle by operating a mouse or a keyboard. Then, the accepting unit 15 accepts that processing such as calculation of an inclination angle is started, and passes that fact to the output unit 13. Then, the output unit 13 reads a plane map from the map information storage unit 11 and displays it on the display (steps S101 and S102). As a result, a planar map is displayed as shown in FIG. It is assumed that the measurement unit area is displayed in advance on the map. The unit of measurement is set between the lower right road and the upper left pond. This map is an aerial photograph including TIN data having coordinate information.

  Next, it is assumed that the user clicks the “display / hide topographic map” button by operating the mouse. Then, when the topographic map is not displayed, the reception unit 15 receives a click on the “display / hide topographic map” button. Therefore, the reception unit 15 determines that an instruction to display the topographic map is received, and outputs the instruction to the output unit 13. (Step S105). Then, the output unit 13 reads the topographic map corresponding to the map being displayed from the topographic map information storage unit 12, and displays the topographic map superimposed on the map (step S106). As a result, as shown in FIG. 6, the map and the topographic map are superimposed and displayed. This superposition may be realized, for example, by displaying an opaque topographic map on the back side and displaying a semi-transparent plane map on the front side of the topographic map, or opaque on the back side. It may be realized by displaying a plane map and displaying a translucent topographic map on the front side of the plane map.

  Next, when the user operates the mouse, there are two points in the displayed measurement unit, and the line connecting the two points passes through the vicinity of the center of the measurement unit, and the line is orthogonal to the contour line. Assume that the first and second points are input so that Specifically, it is assumed that the user first clicks the position of the first point and then clicks the position of the second point. Then, the reception unit 15 receives those inputs (step S103), and passes information indicating the position to the output unit 13 and the altitude value acquisition unit 16. The output unit 13 displays the received two points and a line connecting the two points as shown in FIG. 7 (this process is not shown in the flowchart).

  The elevation value acquisition unit 16 receives the positions of the designated first and second points from the reception unit 15. Assume that the positions of the first and second points indicate positions in screen coordinates. Then, the altitude value acquisition unit 16 converts the position into the position of the client coordinates of the window in which the plane map is displayed, and further converts the position into the position on the plane map. Then, the elevation value acquisition unit 16 acquires the elevation value corresponding to the position of the plane on the map and the latitude / longitude, and the latitude / longitude (X1, Y1) and elevation value “1” corresponding to the first point. Z1 ", the latitude / longitude (X1, Y1) corresponding to the second point, and the altitude value" Z2 "are passed to the determination unit 17 and the inclination angle calculation unit 19 (step S201). Note that the conversion of the position in the screen coordinates, client coordinates, and the like is already known, and detailed description thereof is omitted.

  Upon receiving the latitude and longitude of the first and second points, the determination unit 17 determines whether Z1 <Z2 is satisfied (step S202). In this case, it is assumed that Z1 <Z2. Then, the determination unit 17 passes the fact that the elevation of the second point is higher and the latitude and longitude of the first and second points received from the elevation value acquisition unit 16 to the arrow graphic generation unit 18. If Z1 <Z2 is not satisfied, the determination unit 17 uses an arrow to indicate that the elevation of the first point is higher and the latitude and longitude of the first and second points received from the elevation value acquisition unit 16. It is assumed that the graphic generation unit 18 is passed.

  Upon receiving the latitude / longitude and the like from the determination unit 17, the arrow graphic generation unit 18 generates an arrow graphic from the second point, which is the higher elevation point, to the first point, and passes it to the output unit 13 ( Step S203). It is assumed that both end points of the arrow graphic are indicated by latitude and longitude. The output unit 13 calculates the position in screen coordinates corresponding to the latitude / longitude of both end points of the arrow graphic, displays the arrow graphic at the position on the display, and stores information of the arrow graphic in the arrow graphic storage unit 14. (Step S204).

  In addition, the inclination angle calculation unit 19 calculates the distance between the first and second points and the height difference using the latitude and longitude of the first and second points received from the elevation value acquisition unit 16. . Here, it is assumed that the distance between the first and second points is L1, and the height difference is H1. Then, the inclination angle calculation unit 19 calculates the inclination angle for frequency display and the inclination angle for fraction display using the distance L1 and the height difference H1 (step S205). It is assumed that the inclination angle of the frequency display is “17 °” and the inclination angle of the fraction display is “1 / 3.3”. In addition, the inclination angle calculation unit 19 compares the inclination angle with a threshold value to determine whether the paddy field is a steep slope or a gentle slope. Or whether the slope is gentle. In this case, both are steeply inclined. Then, the tilt angle calculation unit 19 passes the tilt angle of the frequency display and the fraction display and the determination result indicating that the paddy field and the field are steeply tilted to the tilt angle output unit 20. Then, the tilt angle output unit 20 displays the received tilt angle and the determination result on the display and accumulates them in the tilt angle storage unit 21 (step S206). As a result, as shown in FIG. 8, an arrow graphic starting from the second point and ending at the first point is displayed on the planar map. Further, as shown in FIG. 8, the inclination angle of the frequency display and the fraction display, and the fact that the inclination section is “steeply inclined” both in the paddy field and the field are displayed (step S104).

  Next, it is assumed that the user clicks the “display / hide topographic map” button by operating the mouse. Then, when the topographic map is displayed, the reception unit 15 receives a click on the “top / bottom map display / non-display” button. Therefore, the reception unit 15 determines that the instruction to hide the topographic map is received, and outputs the instruction to the output unit. 13 (step S107). Then, the output unit 13 does not display the displayed topographic map (step S108). As a result, as shown in FIG. 9, only the map and the arrow graphic are displayed. In this way, the arrow graphic finally displayed in the correct direction can be displayed on the planar map, and the inclination angle and the inclination division at the position corresponding to the arrow graphic can be known.

  If the positions of the first point and the second point are inappropriate, the user may move the point by dragging the point using a pointing device such as a mouse. The designation of the position of the point after the movement is accepted by the accepting unit 15 (step S103), and generation of a new arrow figure, calculation of an inclination angle, and the like are performed in the same manner as described above.

  When the user clicks the “end” button, the intermediate and mountainous area direct payment system support apparatus 1 determines that a series of processes such as calculation of the inclination angle is to be ended, and ends the display of the map and the like. Since the arrow graphic storage unit 14 and the tilt angle storage unit 21 store the arrow graphic and the tilt angle, when the processing is started next, the information can be read and displayed. Also good. Moreover, the arrow figure etc. which are memorize | stored in the memory | storage part may be read by another component or another apparatus, and may be utilized in the application etc. of an intermediate and mountainous area direct payment system.

  In this specific example, the case where the arrow graphic indicates the position of both end points by latitude and longitude has been described, but this need not be the case. As described above, the data structure of the arrow graphic data is not limited.

  Further, in this specific example, the case where only one measurement unit is displayed in the planar map has been described, but two or more measurement units may be displayed. In that case, for example, an arrow graphic or an inclination angle may be accumulated in association with information for identifying the measurement unit. Then, for each measurement unit, an arrow figure and an inclination angle may be managed so that they can be displayed or printed as appropriate.

  Further, in this specific example, the case where the altitude value acquisition unit 16 converts the screen coordinates, the client coordinates, and the like has been described. However, this is an example, and the altitude value is obtained by converting other coordinates. Needless to say, it may be acquired.

  In this specific example, the case where the tilt angle is output as a numerical value has been described, but this need not be the case. For example, it may be output graphically by a bar graph or the like. In that case, for example, the relationship between the inclination angle and the threshold value may be visually grasped by drawing a line at the threshold value position.

  As described above, according to the intermediate and mountainous area direct payment system support device 1 according to the present embodiment, the elevation of the altitude can be determined only by specifying the positions of the first and second points without worrying about the elevation. It is possible to appropriately set an arrow figure starting from a higher point and ending at a lower altitude. In addition, the inclination angle at the position corresponding to the arrow graphic can be automatically calculated. As a result, it is possible to improve user convenience when using the intermediate and mountainous area direct payment system. In particular, in the application procedure for the direct payment system for mountainous areas, there are cases where many units of measurement (sometimes in the order of several thousand to several tens of thousands) are applied for in a short period of time. Therefore, complicated processing is performed in a short period of time, and there is a possibility that the direction of the arrow is mistaken accordingly. However, by using the intermediate and mountainous area direct payment system support device 1 according to the present embodiment, such an error is caused. Can be prevented. In addition, in the application procedure, the submitted drawings cannot be reworked, and it is particularly necessary to submit accurate drawings. Therefore, it is effective to use the intermediate and mountainous area direct payment system support device 1 according to this embodiment. Become.

  Moreover, in the topographic map, the area of the rice field or the field tends to have a wider interval between the contour lines than the steep mountain surface. In the topographic map, in the case of a field or a field, contour lines are sometimes omitted in order to show the texture. In such a case, by looking at the contour line around the measurement unit, the position of the straight line for measuring the inclination angle (that is, the position of the straight line perpendicular to the contour line) can be known, and the first and second points. Even if the position of the first and second points can be determined, the elevation of the first and second points cannot be easily known. On the other hand, even in such a case, the intermediate and mountainous area direct payment system support device 1 according to the present embodiment can automatically determine the altitude of both end points and appropriately set the arrow figure. It is possible to support the creation of documents without mistakes in the application procedure for the direct payment system for mountainous areas. For example, a map obtained by superimposing a planar map and a topographic map is shown in FIG. 10, and even if there are not many contour lines in the measurement unit area, as shown by the arrow in FIG. The direction of the arrow can be set.

  In the present embodiment, the case where the tilt angle is also calculated and output has been described, but this need not be the case. That is, it is not necessary to calculate and output the tilt angle in the intermediate and mountainous area direct payment system support device 1. In that case, the intermediate and mountainous area direct payment system support apparatus 1 may not include the inclination angle calculation unit 19, the inclination angle output unit 20, and the inclination angle storage unit 21.

  In this embodiment, the case where a topographic map can also be output has been described, but this need not be the case. That is, the intermediate and mountainous area direct payment system support device 1 may not output the topographic map. In that case, the intermediate and mountainous area direct payment system support device 1 may not include the topographic map information storage unit 12.

  Moreover, it goes without saying that the intermediate and mountainous area direct payment system support device 1 according to the present embodiment may perform processing other than that described in the present embodiment. For example, the slope angle calculated in each measurement unit may be subjected to a weighted average with the agricultural land area belonging to each measurement unit to calculate the slope angle of the housing estate. Processing may be performed.

  Moreover, although the case where the arrow figure of the present embodiment is a figure having a clear arrowhead has been mainly described, the arrow figure does not have to have a clear arrowhead as long as it is a directed line segment. For example, it may be a line segment indicating a direction due to a gradient, a change in the interval between broken lines, or the like.

  Moreover, although the said embodiment mainly demonstrated the case where the hilly and mountainous area direct payment system assistance apparatus 1 was stand-alone, the hilly and mountainous area direct payment system assistance apparatus 1 may be a stand-alone apparatus, and is a server. -It may be a server device in a client system. In the latter case, the output unit or the reception unit may receive input or output information via a communication line.

  In the above embodiment, each process or each function may be realized by centralized processing by a single device or a single system, or may be distributedly processed by a plurality of devices or a plurality of systems. It may be realized by doing.

  In the above embodiment, information related to processing executed by each component, for example, information received, acquired, selected, generated, transmitted, or received by each component In addition, information such as threshold values, mathematical formulas, addresses, etc. used by each component in processing is retained temporarily or over a long period of time on a recording medium (not shown) even when not explicitly stated in the above description. It may be. Further, the storage of information in the recording medium (not shown) may be performed by each component or a storage unit (not shown). Further, reading of information from the recording medium (not shown) may be performed by each component or a reading unit (not shown).

  In the above embodiment, when information used by each component, for example, information such as a threshold value, an address, and various setting values used by each component may be changed by the user Even if it is not specified in the above description, the user may be able to change the information as appropriate, or it may not be. If the information can be changed by the user, the change is realized by, for example, a not-shown receiving unit that receives a change instruction from the user and a changing unit (not shown) that changes the information in accordance with the change instruction. May be. The change instruction received by the receiving unit (not shown) may be received from an input device, information received via a communication line, or information read from a predetermined recording medium, for example. .

  Moreover, in the said embodiment, when two or more components included in the intermediate and mountainous area direct payment system support apparatus 1 have a communication device, an input device, etc., two or more components are a physically single device. Or may have separate devices.

  In the above embodiment, each component may be configured by dedicated hardware, or a component that can be realized by software may be realized by executing a program. For example, each component can be realized by a program execution unit such as a CPU reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory. In addition, the software which implement | achieves the intermediate and mountainous area direct payment system assistance apparatus 1 in the said embodiment is the following programs. That is, this program sets the inclination angle on the map of the map information plane stored in the map information storage unit in which the map information which is the map information of the plane having the three-dimensional coordinate information is stored. An accepting unit that accepts designation of the positions of the first point and the second point that are the end points of the line segment to be calculated, and using the coordinate information of the map information, the first point and the second point accepted by the accepting unit An elevation value acquisition unit that acquires an elevation value that is a coordinate value in the height direction, a determination unit that determines the height of the first point and the second point using the elevation value acquired by the elevation value acquisition unit, and a determination unit An arrow graphic generation unit that generates an arrow graphic that is a directed line segment starting from the higher point of the first point and the second point and ending at the lower point, using the determination result of , Output a map of the map information plane and the arrow graphic generated by the arrow graphic generator Is a program for functioning as that output.

  In the program, the functions realized by the program do not include functions that can be realized only by hardware. For example, functions that can be realized only by hardware such as a modem and an interface card in a reception unit that receives information and an output unit that outputs information are not included in at least the functions realized by the program.

  The program may be executed by being downloaded from a server or the like, and a program recorded on a predetermined recording medium (for example, an optical disk such as a CD-ROM, a magnetic disk, a semiconductor memory, or the like) is read out. May be executed by Further, this program may be used as a program constituting a program product.

  Further, the computer that executes this program may be singular or plural. That is, centralized processing may be performed, or distributed processing may be performed.

  FIG. 11 is a schematic diagram showing an example of the appearance of a computer that executes the program and realizes the intermediate and mountainous area direct payment system support apparatus 1 according to the embodiment. The above-described embodiment can be realized by computer hardware and a computer program executed on the computer hardware.

  11, a computer system 900 includes a computer 901 including a CD-ROM (Compact Disk Read Only Memory) drive 905 and an FD (Floppy (registered trademark) Disk) drive 906, a keyboard 902, a mouse 903, a monitor 904, and the like. Is provided.

  FIG. 12 is a diagram showing an internal configuration of the computer system 900. In FIG. 12, in addition to the CD-ROM drive 905 and the FD drive 906, a computer 901 is connected to an MPU (Micro Processing Unit) 911, a ROM 912 for storing a program such as a bootup program, and the MPU 911. A RAM (Random Access Memory) 913 that temporarily stores program instructions and provides a temporary storage space, a hard disk 914 that stores application programs, system programs, and data, and an MPU 911 and a ROM 912 are interconnected. And a bus 915. The computer 901 may include a network card (not shown) that provides connection to the LAN.

  A program for causing the computer system 900 to execute the functions of the intermediate and mountainous area direct payment system support apparatus 1 according to the above embodiment is stored in the CD-ROM 921 or FD 922 and inserted into the CD-ROM drive 905 or FD drive 906. May be transferred to the hard disk 914. Instead, the program may be transmitted to the computer 901 via a network (not shown) and stored in the hard disk 914. The program is loaded into the RAM 913 when executed. The program may be loaded directly from the CD-ROM 921, the FD 922, or the network.

  The program does not necessarily include an operating system (OS) or a third-party program that causes the computer 901 to execute the functions of the intermediate and mountainous area direct payment system support apparatus 1 according to the above-described embodiment. The program may include only a part of an instruction that calls an appropriate function (module) in a controlled manner and obtains a desired result. How the computer system 900 operates is well known and will not be described in detail.

  Further, the present invention is not limited to the above-described embodiment, and various modifications are possible, and it goes without saying that these are also included in the scope of the present invention.

  From the above, according to the intermediate and mountainous area direct payment system support device according to the present invention, the position of the first and second points can be determined without worrying about the altitude. An arrow figure with the lower end as an end point can be set appropriately, and it is useful as a device or system that supports processing related to a direct payment system between mountainous areas.

DESCRIPTION OF SYMBOLS 1 Nakayama area direct payment system support apparatus 11 Map information storage part 12 Topographic map information storage part 13 Output part 14 Arrow figure memory | storage part 15 Reception part 16 Elevation value acquisition part 17 Judgment part 18 Arrow figure generation part 19 Inclination angle calculation part 20 Inclination angle output unit 21 Inclination angle storage unit

Claims (5)

Map information der plane having a three-dimensional coordinate information is, the map information storage unit in which information der Ru map information of the map of mountainous regions are stored,
A reception unit that receives designation of positions of the first point and the second point that are end points of a line segment for calculating an inclination angle on a map of the plane of the map information;
Using the coordinate information of the map information, an elevation value acquisition unit that acquires an elevation value that is a coordinate value in the height direction of the first point and the second point received by the reception unit;
A determination unit that determines the height of the first point and the second point using the elevation value acquired by the elevation value acquisition unit;
Using the determination result of the determination unit, an arrow graphic is generated that is a directed line segment having a higher point as a start point and a lower point as an end point among the first point and the second point. An arrow figure generator,
An intermediate and mountainous area direct payment system support device, comprising: a map of a plane of the map information; and an output unit that outputs an arrow graphic generated by the arrow graphic generation unit. On the plane map, using the distance between the first point and the second point received by the reception unit and the elevation value of the first point and the second point acquired by the elevation value acquisition unit, An inclination angle calculation unit for calculating an inclination angle between the first point and the second point;
The intermediate / mountainous area direct payment system support device according to claim 1, further comprising an inclination angle output unit that outputs an inclination angle calculated by the inclination angle calculation unit. A topographic map information storage unit that stores topographic map information that is information of topographic maps having contour lines;
3. The intermediate and mountainous area direct payment system support device according to claim 1 or 2, wherein the output unit outputs a map of a plane of the map information and a topographic map of the topographic map information in an overlapping manner. Map information der plane having a three-dimensional coordinate information is, the map information storage unit in which information der Ru map information of the map of mountainous areas are stored, and the receiving unit, and the altitude value acquiring unit, the determination unit And an intermediate and mountainous area direct payment system support method processed using an arrow figure generation unit and an output unit,
A first output step in which the output unit outputs a map of a plane of the map information;
A position designation acceptance in which the accepting unit accepts designation of the positions of the first point and the second point that are end points of the line segment for calculating the inclination angle on the map of the plane output in the first output step. Steps,
The altitude value that the altitude value acquisition unit acquires the altitude value that is the coordinate value in the height direction of the first point and the second point received in the position designation receiving step using the coordinate information of the map information An acquisition step;
A determination step in which the determination unit determines the height of the first point and the second point using the elevation value acquired in the elevation value acquisition step;
Using the determination result in the determination step, the arrow figure generation unit uses the higher point of the first point and the second point as a starting point and a directional line having a lower point as an end point. An arrow graphic generation step for generating an arrow graphic that is a minute;
An intermediate and mountainous area direct payment system support method, comprising: a second output step in which the output unit outputs the arrow graphic generated in the arrow graphic generation step. Computer
Map information der plane having a three-dimensional coordinate information is, in the map on the plane of the map information stored in map information storage unit between the region information der Ru map information of the map is stored Nakayama, A receiving unit that receives designation of positions of the first point and the second point that are end points of the line segment for calculating the inclination angle;
Using the coordinate information of the map information, an elevation value acquisition unit that acquires an elevation value that is a coordinate value in the height direction of the first point and the second point received by the reception unit;
A determination unit that determines the height of the first point and the second point using the elevation value acquired by the elevation value acquisition unit;
Using the determination result of the determination unit, an arrow graphic is generated that is a directed line segment having a higher point as a start point and a lower point as an end point among the first point and the second point. Arrow figure generator,
The program for functioning as an output part which outputs the map of the plane of the map information, and the arrow figure generated by the arrow figure generation part.

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