JP2018025726A - Information providing method, information providing program, and information providing device - Google Patents

Abstract

Information is provided while suppressing memory usage. In an information providing method according to an embodiment, a computer executes processing for acquiring first map information and second map information having different land attributes in a predetermined region. Further, the information providing method calculates a memory capacity required for combining the first map information and the second map information based on the attribute quantities of the acquired first map information and second map information. The computer executes the process. In the information providing method, when the calculated memory capacity exceeds a predetermined value, the computer executes a process of dividing one map information of the first map information and the second map information. In addition, when one map information of the first map information and the second map information is divided, the information providing method combines the other map information with the divided map information and combines the first map information and the second map information. The computer executes processing for combining the map information and outputting the combined map information. [Selection] Figure 1

Description

  Embodiments described herein relate generally to an information providing method, an information providing program, and an information providing apparatus.

  Conventionally, a service provided to users of local governments by calculating the economic value of ecosystem services in local government areas from map information that combines a mesh map showing the geology of each mesh and a vegetation map showing vegetation on the ground surface There is. Local governments carry out various activities for the conservation of ecosystems based on the economic value of ecosystem services in the region obtained from this service. As a conventional technique for synthesizing map information in this service, there is a technique for extracting a change area of a feature such as a vegetation on the ground surface or a structure, and synthesizing the feature change area and the map information of the observation range.

JP 2008-39848 A Special table 2012-514198 gazette JP 2013-210547 A

  However, the above-described conventional technology may require a large amount of memory resources when combining a plurality of pieces of map information. For this reason, for example, when a service is provided using a system that provides information from a server in response to requests from a plurality of terminal devices, memory resources are received when requests for information provision are received from many users (for example, local governments). It takes time to secure the process, and the waiting time for processing may become long.

  In one aspect, an object is to provide an information providing method, an information providing program, and an information providing apparatus capable of providing information while suppressing memory usage.

  In one aspect, the information providing method acquires first map information and second map information having different land attributes in a predetermined area, and the acquired first map information and second map information are A memory capacity required for combining the first map information and the second map information is calculated on the basis of the quantity of the attributes possessed, and if the calculated memory capacity exceeds a predetermined value, the first map information and the second map information When one map information of the map information is divided and one map information of the first map information and the second map information is divided, the map information of the other is combined with the map information of the first map The computer executes a process of combining the information and the second map information and outputting the combined map information.

  As one aspect, information can be provided while suppressing memory usage.

FIG. 1 is an explanatory diagram illustrating a configuration example of an information providing system according to the embodiment. FIG. 2 is an explanatory diagram for explaining the rule sheet. FIG. 3 is an explanatory diagram for explaining the use of the rule sheet. FIG. 4 is a flowchart illustrating an operation example of the calculation server. FIG. 5 is a flowchart illustrating an example of a data creation calculation process. FIG. 6 is an explanatory diagram for explaining division / combination of map information. FIG. 7 is an explanatory diagram for explaining an example of combining a land use map and a geological mesh map. FIG. 8 is a flowchart illustrating an example of a data creation calculation process. FIG. 9 is an explanatory diagram for explaining an example of division / combination of map information. FIG. 10 is a block diagram illustrating a hardware configuration example of the arithmetic server according to the embodiment.

  Hereinafter, an information providing method, an information providing program, and an information providing apparatus according to embodiments will be described with reference to the drawings. In the embodiment, configurations having the same functions are denoted by the same reference numerals, and redundant description is omitted. Note that the information providing method, the information providing program, and the information providing apparatus described in the following embodiments are merely examples, and do not limit the embodiments. In addition, the following embodiments may be appropriately combined within a consistent range.

  FIG. 1 is an explanatory diagram illustrating a configuration example of an information providing system according to the embodiment. As illustrated in FIG. 1, the information providing system 1 includes a terminal device 2, a Web server 3, an arithmetic server 4, and a DB server 5. In the information providing system 1, the terminal device 2, the Web server 3, the calculation server 4, and the DB server 5 are connected to be communicable with each other via a communication network (not shown) such as the Internet or a LAN (Local Area Network). .

  The information providing system 1 provides the calculation results calculated by the calculation server 4 based on the information stored in the DB server 5 to the plurality of terminal devices 2 via the Web server 3, so that the user of the terminal device 2 can be provided. It is a system that realizes information provision services.

  Specifically, the terminal device 2 can be a PC (Personal Computer), a tablet terminal, or the like. The Web server 3 performs exchanges with the client side such as screen display via the Web browser of the terminal device 2 (client). For example, the Web server 3 receives a calculation request from the Web browser of the terminal device 2. The calculation server 4 reads information (map information 511, 521, rule sheet 522, etc.) stored in the DB server 5 and performs the requested calculation via the Web server 3. The result of the calculation performed by the calculation server 4 is returned from the Web server 3 to the Web browser of the terminal device 2.

  As an example, the information providing service provided by the information providing system 1 of the present embodiment calculates and provides an economic value for an ecosystem in a local government area. Ecosystems can be assessed by the economic value of the ecosystem services they have. Ecosystem services are the bounty for mankind provided by ecosystems. Ecosystem services include a wide variety of services, such as food supply services by animals and plants in the ecosystem, and climate adjustment services by forest trees photosynthesis and absorbing carbon dioxide. If the economic value of each ecosystem service that the ecosystem has is added together, it becomes the economic value of the entire ecosystem. Assessing the economic value of an ecosystem makes it easier to understand that conservation of the ecosystem is also beneficial from an economic perspective.

  For example, when the calculation server 4 receives a calculation request for calculating the latest data of the economic value of the ecosystem service by updating the map information in the local government area, the calculation server 4 reads the map information 511, 521, etc. from the DB server 5. And the calculation server 4 calculates | requires the map information which combined the mesh map (1st map information) which shows the geology for every mesh, and the vegetation map (2nd map information) which shows the vegetation of the ground surface about the area of a local government. . Next, the calculation server 4 calculates and returns the economic value of the ecosystem service in the local government area from the combined map information.

  The information provided in the information providing service of the information providing system 1 is not limited to the economic value of the ecosystem service in the local government area. For example, the information providing system 1 may calculate and provide the economic value of transportation infrastructure from map information obtained by combining a road map (first map information) and a house map (second map information).

  Here, the map information 511, 521 is, for example, GIS data of a geographic information system (GIS). The GIS data has a geographical location and information associated with the location, such as land attributes at the geographic location. For example, the GIS data of a geological map has a geographical location and a geology at the geographical location. Further, the GIS data of the vegetation map has a geographical position and vegetation at the geographical position.

  The arithmetic server 4 includes an acquisition unit 40, a capacity calculation unit 41, a division unit 42, a coupling unit 43, and an output unit 44.

  The acquisition unit 40 includes first map information (for example, a mesh map indicating geology for each mesh) and second map information (for example, a mesh map indicating geology for each mesh) having different land attributes in a region set by the terminal device 2 as a local government region or the like. A vegetation map showing vegetation on the ground surface is acquired from the DB server 5. The acquisition unit 40 outputs the acquired map information to the capacity calculation unit 41.

  The capacity calculation unit 41 calculates the memory capacity required for combining the first map information and the second map information based on the attribute quantities of the acquired first map information and second map information. Specifically, the capacity calculation unit 41 expands the GIS data in the memory based on the number of rows in which the attribute is described in the GIS data of each of the first map information and the second map information. Calculate the amount of memory used for merging.

As an example, the number of rows of the GIS data (xxxy_data1) of the first map information is m, and the number of rows of the GIS data (xxxy_data2) of the second map information is n. In addition, the number of items having attributes in xxyy_data1 is a, and the number of items having attributes in xxyy_data2 is b. In this case, the approximate memory capacity used when xxxyy_data1 and xxyy_data2 are expanded and combined in the memory can be calculated by the following equation.
Memory capacity = (Required capacity per line of xxxy_data1 (for the number of items a)) + Required capacity per line of xxxy_data2 (for the number of items b) × m (1 + 2√ (n / m)) × Safety factor (Example: 1 .2))

  The dividing unit 42 divides one map information of the first map information and the second map information when the memory capacity calculated by the capacity calculating unit 41 exceeds a predetermined value set in advance. As an example, when the memory capacity exceeds a preset value when combining a mesh map indicating geology for each mesh and a vegetation map indicating vegetation on the ground surface, the dividing unit 42 divides the mesh map. The map information to be divided may be any one of the map information combined with each other, and is not particularly limited.

  The combining unit 43 combines the first map information and the second map information by a space calculation function that superimposes (combines) the attributes of the same points included in the plurality of map information. Specifically, when combining a mesh map showing the geology of each mesh and a vegetation map showing the vegetation on the surface, map information that shows whether the land is a forest and the type of geology on the surface layer is obtained. Will be.

  Here, when one map information of the first map information and the second map information is divided by the dividing unit 42, the combining unit 43 combines the other map information with the divided map information. As described above, when one map information of the first map information and the second map information is divided, the combining unit 43 combines the other map information with the divided map information, and is used at the time of combining. Memory usage can be reduced.

  The output unit 44 outputs the map information combined by the combining unit 43. Specifically, the output unit 44 stores the map information updated by the combination of the combination unit 43 in the DB server 5 and outputs the calculation result based on the combined map information to the terminal device 2.

  The DB server 5 has an input data area 51 and a backup area 52. The input data area 51 is a storage area for storing data input to the DB server 5 such as newly updated map information 511. The backup area 52 is a storage area for saving (backup) information such as the map information 521 and the rule sheet 522.

  For example, when the content of the map information 521 is newly updated, new map information 511 is input to the input data area 51 from the terminal device 2 via the Web server 3. The arithmetic server 4 refers to the updated map information 511, performs arithmetic processing combined with the map information 521 stored in the backup area 52, and updates the map information 521 based on the arithmetic result.

  The rule sheet 522 shows rules (rules) at the time of data update by the map information 511 stored in the input data area 51 and at the time of calculation requested from the terminal device 2 via the Web server 3.

  FIG. 2 is an explanatory diagram for explaining the rule sheet 522. As shown in FIG. 2, the rule sheet 522 shows information such as the number, the original file, and the saved file for each code that is identification information. In the rule sheet 522, the code is a key code indicating a region, for example. The number is the number of maps corresponding to the area indicated by the key code in the map information 521. The original file is the file name of the map corresponding to the area indicated by the key code in the map information 521, and the number of file names is shown. The save file is a save destination of the original file in the map information 521.

  Thus, in the rule sheet 522, the map corresponding to the area indicated by the key code in the map information 521 is shown. Therefore, by using the rule sheet 522, a map that is subject to calculation or data update in a predetermined area can be specified from the map information 521. For example, the acquisition unit 40 refers to the rule sheet 522 and specifies and acquires a mesh map or a vegetation map corresponding to a predetermined area from the map information 521.

  FIG. 3 is an explanatory diagram for explaining the use of the rule sheet 522. In the example of FIG. 3, it is assumed that the information in the mesh “XXXXXXX” is updated in the mesh map of the map information 511. In this case, as shown in FIG. 3, by using the rule sheet 522, the map information 521a, 521b, and 521c corresponding to the area of “XXXXXXX” can be specified from the map information 521. In this way, by using the rule sheet 522, for example, when updating data, it is possible to quickly specify the map information to be updated.

  FIG. 4 is a flowchart showing an operation example of the calculation server 4. More specifically, FIG. 4 is a flowchart illustrating an operation example of processing for updating the map information 521 in the backup area 52 based on the new map information 511 input to the input data area 51.

  As illustrated in FIG. 4, when the acquisition unit 40 receives data input of new map information 511 in the input data area 51 (S1), the file name in the map information 511 and the file name of the map information 521 in the backup area 52 And the updated map information (file name) is specified. Next, the acquisition unit 40 refers to the rule sheet 522 based on the updated file name, thereby searching for a key code related to the update (S2), and specifying a region where the data has been updated.

  Next, the acquisition unit 40 acquires the map information 511 and the map information 521 associated with the key code from the rule sheet 522 from the DB server 5. Next, in the subsequent processing units (capacity calculation unit 41, division unit 42, and combination unit 43), a data creation operation for combining the map information 511 with the map information 521 stored in the backup area 52 is performed (S3). . Next, the output unit 44 updates the database in the DB server 5, that is, the map information 521 in the backup area 52 based on the calculation result of the data creation calculation (S4).

  FIG. 5 is a flowchart illustrating an example of a data creation calculation process. In this embodiment, it is assumed that mesh data (mesh map) indicating the geology for each mesh is input as the map information 511.

  As shown in FIG. 5, when the process is started, the acquisition unit 40 reads a vegetation map associated with a key code from the map information 521 based on the rule sheet 522 (S10). At this time, the acquisition unit 40 converts, for example, the read vegetation map into a land use map.

  Next, the acquisition unit 40 reads the map information 511 (mesh data) (S11). Next, the acquisition unit 40 cuts out the land use map and mesh data in the administrative division map of the local government or the like (S12). Specifically, the acquisition unit 40 performs data clipping at a position corresponding to the administrative division map. Next, the acquisition unit 40 outputs the cut-out data (land use map, mesh data) to a subsequent processing unit (capacity calculation unit 41, division unit 42, combination unit 43).

  Here, the capacity calculation unit 41 calculates the land use map and the mesh data based on the number of attributes of the land use map and mesh data output from the acquisition unit 40, that is, the number of lines in which the attribute is described. Calculate the memory capacity when combining. Specifically, the capacity calculation unit 41 calculates the memory capacity based on the above-described calculation formula. The dividing unit 42 divides the mesh data for each attribute item when the memory capacity calculated by the capacity calculating unit 41 exceeds a predetermined value set in advance.

  Next, the combining unit 43 combines the land use map and the mesh data with a space calculation function that superimposes (combines) the attributes of the same points (S13). Here, when the dividing unit 42 divides the mesh data, the combining unit 43 combines the land use map with each divided mesh data.

  FIG. 6 is an explanatory diagram for explaining division / combination of map information. As shown in FIG. 6, the map information 511 is divided into map information 511a and 511b for each of the items “00” and “01” indicated by the attribute of “item 2”. Then, the combining unit 43 combines the divided map information 511a and the map information 521 to create the map information 523a. The combining unit 43 combines the divided map information 511b and the map information 521 to create the map information 523b.

  FIG. 7 is an explanatory diagram for explaining an example of combining a land use map and a geological mesh map. In the example of FIG. 7, the case where the map information 511 that is a geological mesh map is combined with the map information 521 that is the land use map stored in the backup area 52 is illustrated. The map information 521 includes items 522a to 522f (attributes of “item 1” in the map information 521 in FIG. 6) relating to land use such as paddy fields, fields, grasslands, urban areas, hardwoods, conifers, and the like. Further, the map information 511 has items 512a and 512b relating to geology (the attribute of “item 2” in the map information 511 in FIG. 6).

  As shown in FIG. 7, when map information 511 that is a geological mesh map is combined with map information 521 that is a land use map, if the memory capacity at the time of combining is within a predetermined value (allowable value), the combined map The map information 523 is created. Further, if the memory capacity when combining exceeds a predetermined value (allowable value), map information 523a and 523b combined with the map information 521 after the map information 511 is divided into items (00, 01) are created. The In this way, the combining unit 43 can suppress the memory usage used at the time of combining by separately generating the map information 523a and 523b.

  Moreover, when calculating | requiring the value of a surface erosion prevention function, the surface layer in a geological mesh map and the item of a land use map are required for a calculation, and other items are unnecessary. Therefore, in the combined map information 523, 523a, and 523b, an overlap between the attribute of “item 1” and the attribute of “item m + 2” (the attribute of “item 2” in the map information 511) may be considered.

  Next, the output unit 44 calculates the economic value of the ecosystem based on the combined map information (map information 523 or map information 523a, 523b) (S14). Next, the output unit 44 outputs the result obtained by the calculation (S15). Specifically, the output unit 44 updates the map information 521 based on the combined map information and outputs the calculated economic value of the ecosystem to the terminal device 2.

  Items of economic value of ecosystem services provided as numerical data include water resources storage function and surface erosion prevention function. For example, when evaluating the surface erosion prevention function, the output unit 44 calculates an evaluation value indicating the surface erosion prevention function by the following methods of S21 to S24.

S21: The amount of eroded sediment in the entire forest area is obtained from the annual erosion depth of the sediment and the forest area in the forested land.
S22: Further, the amount of eroded soil when the forest area is all solid wood is obtained from the annual erosion depth and forest area of the soil in the unforested land.
S23: The difference between the amount of eroded earth and sand in the entire forest area and the amount of eroded earth and sand when all the forest areas are made of solid wood is used as the amount of landslide erosion prevention by the forest.
S24: The construction cost of the dam is calculated by substituting the amount of earth and sand erosion prevention by the forest with the amount of earth and sand retained by the dam, and the value is set as the economic value of the surface erosion prevention function of the area.

  In calculating S21 to S24, the calculation server 4 reads a vegetation map in order to obtain the forest area of S21, and the vegetation map is also classified by plant type, so that the trees are converted into land use maps compiled as forests. . Moreover, since the annual erosion depth of the earth and sand in S21 varies depending on the surface geology of the land, mesh data (map) having surface geological information is read. In addition, a plurality of vegetation maps and mesh data are connected in order to cover the entire municipality to be provided. The calculation server 4 cuts out the mesh data and land use map read in the administrative division map of the city, then combines the land use map and the surface geological mesh data to know whether the land is forest and the type of surface geology. Create a map. At this time, the arithmetic server 4 obtains the memory capacity at the time of combination, and performs processing such as file division if necessary. Next, the output unit 44 performs a procedure of performing the calculations of S21 to S24 and outputting the result.

  In addition, although the case where it cuts out by an administrative division map was demonstrated in embodiment mentioned above, the structure which receives and cuts out arbitrary area maps (arbitrary area maps) from the terminal device 2 side may be sufficient. FIG. 8 is a flowchart showing a processing example of data creation calculation, and is a diagram for explaining a processing example in the case of clipping in an arbitrary region map.

  As shown in FIG. 8, when clipping an arbitrary area map, the acquisition unit 40 reads a land use map stored in the map information 521 in the backup area 52 without recreating the land use map from the vegetation map ( S10a). And the acquisition part 40 performs the process of clipping using the arbitrary area map input from the terminal device 2 side instead of an administrative division map (S12a). Thus, the calculation server 4 may perform the data creation calculation process based on the arbitrary region map set from the terminal device 2 side.

  FIG. 9 is an explanatory diagram for explaining an example of division / combination of map information. As illustrated in FIG. 9, the dividing unit 42 divides each item in the attribute of the map information 511. Then, the combining unit 43 combines the divided map information 511a and 511b and the map information 521. As described above, when the items in the attribute of the map information 511 are divided and combined (upper part in the illustrated example), the map information 511c and 511d obtained by dividing the map information 511 vertically and the map information 521 are combined. As is clear from comparison with (lower part of the illustrated example), the number of polygons can be reduced. Thus, the memory usage can be reduced by reducing the number of polygons.

  As described above, the calculation server 4 includes the first map information (for example, a mesh map indicating the geology for each mesh) and the second map information having different land attributes in the region set by the administrative division or the GUI of the local government. Get map information (vegetation map showing vegetation on the ground surface). In addition, the calculation server 4 calculates the memory capacity required for combining the first map information and the second map information based on the attribute quantities of the acquired first map information and second map information. . In addition, when the calculated memory capacity exceeds the predetermined value, the calculation server 4 divides one map information of the first map information and the second map information. In addition, when the calculation server 4 divides one map information of the first map information and the second map information, the calculation map 4 combines the other map information with the divided map information to obtain the first map information and the second map information. Combine map information and output the combined map information. Therefore, when the memory capacity required for combining the first map information and the second map information exceeds a predetermined value, the calculation server 4 divides one map information and combines them, so that the memory usage can be suppressed. Information can be provided.

  It should be noted that each component of each illustrated apparatus does not necessarily have to be physically configured as illustrated. In other words, the specific form of distribution / integration of each device is not limited to that shown in the figure, and all or a part thereof may be functionally or physically distributed or arbitrarily distributed in arbitrary units according to various loads or usage conditions. Can be integrated and configured.

  Various processing functions performed in the information providing system 1 may be executed entirely or arbitrarily on a CPU (or a microcomputer such as an MPU or MCU (Micro Controller Unit)). In addition, various processing functions may be executed in whole or in any part on a program that is analyzed and executed by a CPU (or a microcomputer such as an MPU or MCU) or hardware based on wired logic. Needless to say, it is good. Various processing functions performed in the information providing system 1 may be executed by a plurality of computers in cooperation with cloud computing.

  By the way, the various processes described in the above embodiments can be realized by executing a program prepared in advance by a computer. Therefore, in the following, an example of a computer (hardware) that executes a program having the same function as the above embodiment will be described. FIG. 10 is a block diagram illustrating a hardware configuration example of the arithmetic server 4 of the information providing system 1 according to the embodiment.

  As illustrated in FIG. 10, the information providing system 1 includes a CPU 101 that executes various arithmetic processes, an input device 102 that receives data input, a monitor 103, and a speaker 104. In addition, the information providing system 1 includes a medium reading device 105 that reads a program and the like from a storage medium, an interface device 106 that is connected to various devices, and a communication device 107 that is connected to an external device by wire or wirelessly. Have. The information providing system 1 also includes a RAM 108 that temporarily stores various types of information and a hard disk device 109. Each unit (101 to 109) in the information providing system 1 is connected to the bus 110.

  The hard disk device 109 stores a program 111 for executing various processes in the acquisition unit 40, the capacity calculation unit 41, the division unit 42, the combination unit 43, and the output unit 44 described in the above embodiment. The hard disk device 109 stores various data 112 referred to by the program 111. For example, the input device 102 receives an input of operation information from an operator of the information providing system 1. The monitor 103 displays various screens operated by the operator, for example. The interface device 106 is connected to, for example, a printing device. The communication device 107 is connected to a communication network such as a LAN (Local Area Network), and exchanges various types of information with an external device via the communication network.

  The CPU 101 reads out the program 111 stored in the hard disk device 109, develops it in the RAM 108, and executes it to perform various processes. Note that the program 111 may not be stored in the hard disk device 109. For example, the program 111 stored in a storage medium that can be read by the information providing system 1 may be read and executed. The storage medium readable by the information providing system 1 corresponds to, for example, a portable recording medium such as a CD-ROM or DVD disk, a USB (Universal Serial Bus) memory, a semiconductor memory such as a flash memory, a hard disk drive, or the like. Alternatively, the program 111 may be stored in a device connected to a public line, the Internet, a LAN, or the like, and the information providing system 1 may read and execute the program 111 therefrom.

DESCRIPTION OF SYMBOLS 1 ... Information provision system 2 ... Terminal device 3 ... Web server 4 ... Arithmetic server 5 ... DB server 40 ... Acquisition part 41 ... Capacity calculation part 42 ... Dividing part 43 ... Combined part 44 ... Output part 51 ... Input data area 52 ... Backup Area 101 ... CPU
102 ... Input device 103 ... Monitor 104 ... Speaker 105 ... Media reader 106 ... Interface device 107 ... Communication device 108 ... RAM
109 ... Hard disk device 110 ... Bus 111 ... Program 112 ... Various data 512a, 512b, 522a-522f ... Item 511, 511a-511d, 521, 521a-521c, 523, 523a, 523b ... Map information 522 ... Rule sheet

Claims (5)

Obtaining first map information and second map information having different land attributes in a predetermined area;
Based on the acquired quantity of attributes of the first map information and the second map information, a memory capacity required for combining the first map information and the second map information is calculated,
When the calculated memory capacity exceeds a predetermined value, the map information of one of the first map information and the second map information is divided,
When one map information of the first map information and the second map information is divided, the other map information is combined with the divided map information, and the first map information and the second map information are combined. And
An information providing method, wherein a computer executes a process of outputting combined map information. The information providing method according to claim 1, wherein the dividing process divides one piece of map information of the first map information and the second map information for each attribute of the map information. The process to acquire is based on rule data indicating identification information for identifying a region and a plurality of map information associated with the identification information, and the first map information corresponding to the predetermined region and the second map information Map information is acquired. The information provision method of Claim 1 or 2 characterized by the above-mentioned. Obtaining first map information and second map information having different land attributes in a predetermined area;
Based on the acquired quantity of attributes of the first map information and the second map information, a memory capacity required for combining the first map information and the second map information is calculated,
When the calculated memory capacity exceeds a predetermined value, the map information of one of the first map information and the second map information is divided,
When one map information of the first map information and the second map information is divided, the other map information is combined with the divided map information, and the first map information and the second map information are combined. And
An information providing program for causing a computer to execute processing for outputting combined map information. Obtaining first map information and second map information having different land attributes in a predetermined area;
Based on the acquired quantity of attributes of the first map information and the second map information, a memory capacity required for combining the first map information and the second map information is calculated,
When the calculated memory capacity exceeds a predetermined value, the map information of one of the first map information and the second map information is divided,
When one map information of the first map information and the second map information is divided, the other map information is combined with the divided map information, and the first map information and the second map information are combined. And
An information processing apparatus having a processor for executing processing for outputting combined map information.