JP2019144887A - Forest planning information adjustment system and program - Google Patents

Abstract

To revise and update a forest planning map based on a cadastral map prepared in a different way.SOLUTION: Wide-area registration means 20 aligns, within a first adjustment range, a forest integration region that summarizes forest sections common in first location information up to an upper hierarchy of the forest sections, and a land integration region that summarizes land sections having cadastral locations corresponding to the first location information. Subsequently, detailed registration means 22 aligns, within a second adjustment range that is narrower than the first adjustment range, an attentional forest region consisting of forest sections common in second location information more detailed than the first location information, and an attentional land region consisting of land sections having cadastral locations corresponding to the second location information. Forest section correcting means 24 corrects the boundary of the forest sections by replacing the contour of the attentional forest region with the contour of the attentional land region aligned with the attentional forest region.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a forest block information including a forest block shown in the forest plan map and the lot number information of the forest block, either a land register map, a public map, or a land lot map maintained by a municipality. And a technique for correcting and updating the information based on the lot number information of the land parcel.

  National governments and prefectures maintain forest planning maps and forest books as a database on forest information based on the Forest Law. The forest plan map is divided into the main format, the forest land topography on which the landform topography is displayed, and the usage method (forest phase) as a forest land, including sections corresponding to land ownership boundaries (lot numbers or representative lot numbers), etc. indicate. Specifically, the forest plan map is based on a 1/5000 topographical map, and with reference to an aerial photograph, a public map of the Legal Affairs Bureau or a lot number map of a municipality, and a cadastral map, It is created by extracting the lot number (brush), and classifying the brush according to the usage (tree species, forest age, etc.) as forest land. For each small group (minimum unit of the area where the brush is divided by forest type), in addition to the forest information such as tree species, forest age, and area, the forest book describes the owner information (ground rights holder) of each forest phase.

  Forest plan maps are exclusively old, and some of them have been created based on analog maps created on paper, using topographical maps and aerial photo plotting results. In terms of personality, the accuracy of actual brush (lot number) boundaries and owners is not necessarily good.

  On the other hand, in the cadastral survey, work on the border of the brush was promoted centering on the field survey, a new cadastral map was prepared with suitable surveying accuracy, and it was provided as digital data by the Legal Affairs Bureau. In addition, in each municipality, outside of the cadastral survey area, conventional public maps are compiled according to the topography, and lottery maps in the same format as cadastral maps are being developed. In response to this, with the partial revision of the Forest Law, it has become necessary to transfer (re-create) the previously developed forest plan maps based on these new cadastral maps.

JP-A-11-53516 JP 2004-46491 A

  When the old forest plan map is transferred to the base of the new land register map, due to the difference between the old public map and the new land register map, Due to the inconsistency of the writing boundaries, the difference in lot numbers, etc., it is not possible to simply update the boundary of the forest plan map (the forest aspect boundary that is the boundary of the forest phase classification) based on the writing boundary of the land register map. Therefore, in the past, humans collated the information shown in the forest plan map and the forest book with the information shown in the land register map and the land register, while confirming the match / mismatch or similarity of the shape and lot number, etc. The forest plan map is updated manually. The work requires a great deal of labor, and there is a high possibility of causing work mistakes such as migration omission.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a forest plan information adjustment system that corrects and updates forest plan information based on a cadastral map prepared by a different method. And

  (1) The forest plan information adjustment system according to the present invention includes a forest plan information including a forest block shown in the forest plan map and a forest location that is a lot number information of the forest block, a land register map, a public map, and a municipality Is a system that adjusts based on the land parcel information shown in any of the lot number maps maintained by and the land register location information that is the lot number information of the land parcel, wherein the forest parcel is higher in the notation of the forest location The forest integrated area in which the first forest location information up to a predetermined hierarchy of the forest is shared, and the land areas having the land location corresponding to the first location information of the forest integrated area are grouped together. Wide area registration means for aligning the land integration area within a predetermined first adjustment range, and after the alignment by the wide area registration means, A forest-focused area composed of the forest block having the same second-location information in detail than the first-location information, and a land composed of the land block having the land-register location corresponding to the second-location information of the forest-focused area Means for performing detailed registration for aligning the region of interest within a second adjustment range that is narrower than the first adjustment range; and the contour of the forest region of interest for the boundary of the forest section Forest section correction means for performing correction to replace with the contour of the land attention area aligned with the attention area.

  (2) In the forest plan information adjustment system described in (1) above, the forest section correcting means is configured such that the land attention area is a land of one stroke and the overlapping area ratio between the forest attention area and the land attention area Can be configured to replace the outline of the forest area of interest with the outline of the land area of interest when the image is in a matching state where is equal to or greater than a predetermined threshold.

  (3) In the forest plan information adjustment system according to (2), when the forest attention area is in the aligned state and has an internal boundary line, an internal boundary correction unit that corrects the internal boundary line is provided. And the internal boundary correction means performs a deformation of moving the connection point of the internal boundary line with the outline of the forest attention area to the nearest point on the outline of the land attention area, and the internal boundary after the deformation The part included in the land attention area in the boundary line can be a modified internal boundary line.

  (4) In the forest plan information adjustment system according to (2) and (3) above, when the land attention area and the forest attention area are in the matching state, the forest attention area corresponding to the forest attention area It can be set as the structure which has a forest book information update means to update the description information of a forest book based on the description information of the said land register corresponding to the said land attention area | region.

  (5) In the forest plan information adjustment system described in (2) to (4) above, after the correction by the forest section correction means, a part of the forest integrated area other than the forest attention area in the aligned state The boundary of the land parcel in the land integrated area aligned with the forest integrated area, and the boundary of the forest parcel included in a portion of the land integrated area excluding the land attention area in the aligned state It can be set as the structure which has the division boundary setting means set as a boundary of a new forest division.

  (6) The program according to the present invention provides a lottery map, a public map, and a municipality that maintains a forest plan information including a forest block shown in the forest plan map and a forest location that is a lot number information of the forest block. A program for causing a computer to perform adjustment processing based on land parcel information shown in any of the figures and cadastral location information, which is lot number information of the land parcel, the computer including the forest parcel A forest integrated region in which the first forest location information is shared by the first location information up to a predetermined hierarchy in the representation of the forest location, and the land location corresponding to the first location information of the forest integrated region A wide area registration means for aligning the land integration areas in which the land sections are grouped together within a predetermined first adjustment range; After the registration by the registration means, the forest location corresponding to the forest location of the forest location and the second location information of the forest location of interest corresponding to the forest location and the second location information more detailed than the first location information is common. Means for performing detailed registration for aligning a land area of interest consisting of the land section having the land register location within a second adjustment range that is narrower than the first adjustment range; and The boundary is made to function as a forest section correcting means for correcting the contour of the forest attention area by replacing the outline of the forest attention area with the contour of the land attention area aligned with the forest attention area.

  ADVANTAGE OF THE INVENTION According to this invention, the improvement of the efficiency and precision of the operation | work which adjusts forest plan information based on land registration information is achieved.

It is a block diagram which shows the structure of the outline of the forest plan information adjustment system which is embodiment of this invention. It is a schematic diagram which shows the example of the shape of the division of forest plan map data and land-register map data. It is a schematic diagram which shows the example of the attribute data of forest plan map data and land-register map data. It is an outline processing flow figure of the forest plan information adjustment system which is an embodiment of the present invention. It is an outline processing flow figure of the forest plan information adjustment system which is an embodiment of the present invention. It is an outline processing flow figure of the forest plan information adjustment system which is an embodiment of the present invention. It is a schematic diagram explaining the ICP process which aligns the figure in a forest plan figure, and the figure in a land-register map. It is a schematic diagram explaining the example of the correction process of the internal boundary line by an internal boundary correction means. It is a schematic diagram which shows the example of the setting of the boundary of the forest division by a division boundary setting means. It is a schematic diagram explaining the space search process which specifies the location suitable for a land parcel in a forest plan map. It is a schematic diagram explaining the space search process using the ICP algorithm by a lot number mismatch area | region process means.

  Hereinafter, embodiments of the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a schematic configuration of a forest plan information adjustment system 2 according to the embodiment. This system modifies the forest plan information including the forest parcels shown in the forest plan map and the lot number information of the forest parcels based on the land parcels shown in the land register map and the lot number information of the land parcels. Make adjustments to update. The system includes an arithmetic processing device 4, a storage device 6, an input device 8, and an output device 10. As the arithmetic processing unit 4, it is possible to make dedicated hardware for performing the processing of this system. However, in this embodiment, the arithmetic processing unit 4 is constructed using a computer and a program executed on the computer. Is done.

  A CPU (Central Processing Unit) of the computer constitutes the arithmetic processing unit 4, and includes a wide-area registration means 20, a detailed registration means 22, a forest partition correction means 24, an internal boundary correction means 26, a partition boundary setting means 28, which will be described later. It functions as the lot number mismatch area processing means 30 and the forest book information updating means 32.

  The storage device 6 is composed of a hard disk or the like built in the computer. The storage device 6 replaces the arithmetic processing unit 4 with the wide area registration means 20, the detailed registration means 22, the forest section correction means 24, the internal boundary correction means 26, the section boundary setting means 28, the lot number mismatch area processing means 30 and the forest book information. A program for functioning as the updating unit 32, other programs, and various data necessary for processing of the system are stored. For example, the storage device 6 stores forest plan map data 40 as the forest plan information, and stores land register map data 44 as land register information. The storage device 6 may store the forest book data 42 or the cadastral book data 46 as necessary.

  The input device 8 is a keyboard, a mouse, or the like, and is used for a user to operate the system.

  The output device 10 is a display, a printer, or the like. For example, the output device 10 is used for displaying a forest plan adjusted by the present system to a user by screen display, printing, or the like.

  The forest plan map data 40 and the forest book data 42 are data of the description contents of the forest plan map and the forest book that are prepared as materials for making a regional forest plan based on Article 5 of the Forest Law. Here, the forest plan is a drawing that shows administrative district boundaries, forest subdivision boundaries, forest roads, etc. on a 1/5000 topographical map. A forest subgroup means a unit of a forest section, and there are a forest group and a subgroup as specific units. The subdivision is a small section of the forest section that is divided into different sections such as owners, forest fauna, forest age, tree species, and laws. A small group is the smallest unit of a forest plan. Moreover, the data of the forest plan map includes a lot number of the location of the section as attribute data of each forest section. The forest book is a book that describes lot numbers and forest contents (tree species, forest age, etc.) for each small group of the forest plan. The forest plan map data 40 and the forest book data 42 are associated with each lot number and a code for classifying the sub-groups as keys, and the forest book data 42 associated with each sub-group is handled as attribute data of the forest plan map data 40. be able to.

  The cadastral map data 44 and the cadastral book data 46 are data of the written contents of the cadastral map and the cadastral book created by the cadastral survey. The cadastral map is a high-accuracy map provided to the Legal Affairs Bureau based on Article 14 of the Law, that is, Article 14 Paragraph 1 of the Real Estate Registration Law. The Law Article 14 Map shows the actual position, shape, etc. of each brush, which is a unit of land parcel. Moreover, the data of the land register includes the lot number of the location of the land as attribute data of each land block. In addition, a public map or a lot number map maintained by a municipality can be used instead of the land register, and in that case, the data is stored in the land register data 44. The land register is a book that describes the owner, lot number, lot number, and area of each brush. When using a public map instead of a land register, use a registry book, and when using a lot number map, use property tax taxation information managed by the municipality instead of the land register, in which case the land register data 46 These data are stored in. The cadastral data 44 and the cadastral data 46 are associated with each lot number as a key, and the cadastral data associated with each brush can be handled as attribute data of the cadastral data.

  Here, the lot number of the forest plan map is referred to as a forest lot number, and the lot number of the land register map is referred to as a lot number lot number. In addition, when the forest plan map lacks lot number information, it can be configured to refer to the forest book and obtain the forest lot number, and when the land register map lacks lot number information, refer to the land register. It can be set as the structure which acquires a land register lot number.

  FIG. 2 is a schematic diagram showing an example of the shape of the sections of the forest plan map data 40 and the land register map data 44. FIG. 2 (a) shows the shape of a segment polygon on the forest plan map, and FIG. It represents the shape of the land (brush circle) polygon on the cadastral map. 2A and 2B respectively show a forest plan map and a cadastral map of the same ground area. In the cadastral map data 44 of FIG. 2B, the brush stroke is shown by a solid line. On the other hand, the solid line and the broken line shown in the forest plan map data 40 of FIG. 2A are the forest platoon boundaries, and one region surrounded by the solid line or the broken line is the platoon. Here, for the convenience of contrast with FIG. 2B, in FIG. 2A, the portion associated with the brush stroke in the boundary of the small groups (small group boundary) is represented by a solid line. A broken line is a boundary between regions having different forest contents, such as a forest fauna, and is referred to as a forest fauna boundary here.

  FIG. 3 is a schematic diagram showing an example of attribute data of the forest plan map data 40 and the cadastral map data 44. FIG. 3A shows the attribute data of the small polygons on the forest plan map, and FIG. A plurality of pieces of information are represented in a tabular form for attribute data of land (brush boundaries) polygons on the cadastral map. Specifically, in the forest plan map data of FIG. 3 (a), the information on the subdivision that is one forest section (polygon figure) is described in one line for each item number, and the information is a lot number for identifying the subdivisions. Contains information. Moreover, even if the lot number information is the same, a plurality of regions having different forest phases are set as different sub-groups, and a code for identifying them is included in the sub-group information. In addition, in the cadastral map data of FIG. 3 (b), the information on the land of one brush which is one land section (polygon figure) is described in one line for each item number, and the information is a lot number for identifying the brushes. Contains information.

  Here, the lot number information includes a location and a lot number assigned to the location. Specifically, the location corresponds to administrative divisions such as prefectures, municipalities, large letters, small letters. The lot number is composed of a plurality of hierarchical numbers or symbols such as a real number / branch number, and in some cases a small branch number, and may be a single number only for the real number. Since the lot number information is used as information indicating the location of the forest parcels and land parcels, the lot number information described in the forest plan map data 40 is used here as the location information of the forest parcels and the land parcels described in the land register map data 44. By calling the lot number information as the location register location, the two types of lot number information are confused, and the lot number is the number that follows the administrative division.

  In FIG. 3, each level of the location notation is shown in the order of the left side of the upper side and the lower side to the right as the forest location and the cadastral location. Specifically, from the upper level, large letters, small letters, lot numbers ( Production) and branch numbers are displayed. In FIGS. 3 (a) and 3 (b), descriptions of forest locations and cadastral locations that are higher than large letters are omitted, but the upper layers are common to each sub-group and land. . In addition, “brush border undecided” described in the lot number column of the item number “999” in FIG. 3B means that it is a land section (polygon) where a plurality of brushes whose boundaries are undecided exist. ing.

  The arithmetic processing unit 4 uses the forest plan information as a processing target, and adjusts the forest plan information using the land registration information. For example, the boundary of an old forest area with low accuracy is corrected using a more accurate cadastral map. If the forest area to be adjusted in the forest plan map data 40 is the forest attention area, and the land area from which the boundary used for correcting the forest attention area is extracted in the land register map data 44 is the land attention area, the arithmetic processing unit 4 When extracting the boundary, the forest attention area and the land attention area are aligned.

  The alignment is performed by the wide area registration means 20 and the detailed registration means 22 in the arithmetic processing unit 4.

  The wide area registration means 20 includes a forest integrated area in which forest sections having the same first location information up to a predetermined hierarchical level in the notation of forest locations are grouped together, and first location information of the forest integrated area And a land integration area in which land sections having land registration locations corresponding to the above are registered within a first adjustment range determined in advance.

  After the registration by the wide-area registration unit 20, the detailed registration unit 22 includes a forest attention area composed of forest sections in which the second location information is more detailed than the first location information, and the forest attention area The land attention area consisting of the land parcels having the cadastral location corresponding to the two location information is aligned within the second adjustment range determined narrower than the first adjustment range.

  In this way, the alignment is performed in two steps: first, a large region including the region of interest is performed, and then the region of interest is performed. If the adjustment range in the first stage alignment is the first adjustment range, and the adjustment range in the second stage alignment is the second adjustment range, the second adjustment range is set to be narrower than the first adjustment range. To do. In other words, roughly align the area larger than the attention area in the first stage (wide area registration), and in the subsequent second stage, the position of the attention area is more detailed based on the first stage alignment results. (Detailed registration). In this way, the accuracy of alignment can be improved by using two stages of wide area registration and detailed registration.

For example, the alignment adjustment range can be defined by a range related to the translational distance ξ in the horizontal direction and a range related to the rotation angle φ in the horizontal plane. In this case, assuming that ξ ₁ and φ _{1 of} the first adjustment range are ξ ₁ and φ ₁ and ξ and φ of the second adjustment range are ξ ₂ and φ ₂ , ξ ₁ > ξ ₂ and φ ₁ > φ ₂ Is set.

  In the present embodiment, an example will be described in which the second location information is information from the highest level of the hierarchy in the forest location to the branch number, and the first location information is information up to the production level one level higher than that. This is merely an example, and the hierarchy of the first location information and the second location information can be set to other settings. Moreover, it is also possible to adopt a configuration in which the registration is performed in three or more stages. If the lot number is uniquely assigned to each large letter regardless of the small letter, the small letter may be excluded from the location information.

  The forest section correction means 24 corrects the boundary of the forest section using the contour of the land attention area. In the correction processing, the outline of the forest attention area is replaced with the outline of the land attention area aligned with the forest attention area.

  Here, the state where the land attention area is a land of one stroke and the overlapping area ratio (AR) between the forest attention area and the land attention area is equal to or greater than a predetermined threshold value, the matching state between the forest attention area and the land attention area It is defined as In the present embodiment, the forest section correction unit 24 performs correction to replace the outline of the forest area of interest with the outline of the land area of interest when in the matching state.

  The internal boundary correcting means 26 corrects the internal boundary line when the forest attention area is in a matched state and has an internal boundary line. The forest attention area may be composed of one forest section, or may be an area where a plurality of forest sections are combined. For example, as shown by item numbers “2” and “3” shown in FIG. 3A, a small area with the same forest location up to a branch number but different forest phases can be one forest attention area. In this case, the forest boundary that separates these sub-compartments is the internal boundary. In this way, when the forest attention area is composed of a plurality of forest sections, the boundary between the forest sections becomes the internal boundary line of the forest attention area.

  The inner boundary correction means 26 performs a transformation that moves the connection point of the inner boundary line with the contour of the forest attention area to the nearest neighbor point on the contour of the land attention area, and takes the land attention of the inner boundary line after the deformation. The part included in the area is used as the modified internal boundary.

  Here, for example, for the forest attention area where the alignment has failed, the boundary of the forest section is not corrected by the forest section correcting means 24. In particular, in the present embodiment, the correction is not performed for the forest attention area that is not in alignment with the land attention area. In this way, the forest section correcting means 24 may generate a remaining area where the forest section is not corrected. The arithmetic processing unit 4 can further perform processing for updating the boundary of the forest section using the land register map data 44 for the remaining area, and the section boundary setting means 28 and the lot number inconsistent area processing means 30 perform the processing. .

  The section boundary setting unit 28 is configured to align the remaining area after the correction by the forest section correcting unit 24, specifically, a part of the forest integrated area other than the consistent forest attention area, which is aligned with the forest integrated area. The boundary of the land parcel in the integrated region and the boundary of the forest parcel included in the portion of the land integrated region excluding the consistent land attention region are set as the boundary of the new forest parcel.

  The lot number inconsistent area processing means 30 performs processing for a case where a forest block and a land block cannot be associated with each other by collating the forest location of the forest plan map data 40 and the land register location of the land register map data 44.

  In addition, the arithmetic processing unit 4 can update the forest book data 42 in the forest plan information by the forest book information updating unit 32. Specifically, when the land attention area and the forest attention area are in a consistent state, the forest book information update unit 32 sets the attribute information of the forest plan map data 40 corresponding to the forest attention area as the land attention area. Update based on the attribute information of the corresponding land register data 44. Since the attribute information of the cadastral map data 44 reflects the description information of the cadastral book data 46, as a result, the corresponding information of the forest book data 42 associated with the lot number information of the forest plan map data 40 as a key. Can be updated based on the cadastral data 46.

  4 to 6 are schematic process flow diagrams of the forest plan information adjustment system 2. Hereinafter, the process in the forest plan information adjustment system 2 will be further described with reference to FIGS. 4 to 6.

  The arithmetic processing unit 4 reads the forest plan map data 40 and the land register map data 44 from the storage device 6 (step S5). For all land parcels of the read land register map data 44, a flag FL indicating whether or not the land parcel is associated with a forest parcel is initially set to a value “0” indicating non-correspondence (step S10).

  The wide area registration means 20 searches the forest location of the forest plan map data 40 using the first location information of the forest location as a search key (referred to as “S large key”), and the land register corresponding to the S large key. The location of the cadastral map data 44 is searched by using the location as a search key (referred to as a T large key). The first location information is information up to the real number of the lot number in the forest location as described above.

  Here, in many cases, the T large key is the same as the S large key, but for example, “Nanatsumori” and “Nanatsumori” or “Nishikan” and “Nishikan” are completely the same due to notation shaking. It may not be possible. Therefore, the T large key corresponding to the S large key can be set in consideration of the notation fluctuation assumed in advance for the first location information. However, in the present embodiment, the T large key corresponding to the S large key is simply described as being the same as the first location information set for the S large key. Incidentally, when there is a difference in the notation as described above between the forest location and the cadastral location, for example, the correspondence table is created in advance and stored in the storage device 6, and the wide area registration means 20 The correspondence table can be used for setting the large T key for the large S key and setting the small T key for the small S key in the detailed registration means 22 described later.

  The above-described search for location information can also be performed using the JIS code of the municipality name, the town character name issued by the Ministry of Internal Affairs and Communications, the municipality, and other organizations, or data encoded by a unique code system.

  For example, the wide area registration means 20 acquires the first location information of the forest location in order from the first sub-group of the forest plan map data 40, and when new first location information appears, sets it as the S large key. (Step S15). In addition, the forest plan having the first location information that matches the S large key is specified in the forest plan map data 40. In this embodiment, the small group is a forest section.

  The wide area registration means 20 sets the S large key obtained in step S20 as the T large key, and performs a search process with the T large key on the cadastral map data 44 (step S20).

  If there is a land parcel having a cadastral location that matches the T large key (in the case of “YES” in step S25), the first location information with the T large key is registered in the cadastral map data 44 by the search. The land parcel at the location is identified. On the other hand, when there is no land block having the land register location that matches the large T key in the land register map data 44 (in the case of “NO” in step S25), the processing of steps S30 to S95 described later is omitted and step S100 is performed. Proceed to In step S100, if there is an S large key that has not yet been processed, the process returns to step S15, and a new S large key is set. If there is no unprocessed S large key, the process proceeds from step S100 to step S105 as described later.

  In the example shown in FIG. 3, when the first location information “..., large letters: 1, letters: 1, lot numbers (actual production): 100” of the subgroup of the item number “1” of the forest plan map data 40 is used as a search key, Small groups of item numbers “1” to “4” of the forest plan map data 40 are extracted, and item numbers “1” to “3” of the land register map data 44 are extracted.

  The processing when the land block having the first location information of the T large key exists in the land register map data 44 (in the case of “YES” in step S25) will be further described. In this case, the wide area registration means 20 uses the forest plan map data 40 to obtain information on the shape (boundary) of the sub-section extracted by searching the first location information with the S large key in the forest plan map data 40. And a dissolve process for generating a shape of a forest integrated region in which small groups having the same first location information are collected is performed (step S30). Further, the wide area registration means 20 reads information on the shape of the brush having the T key as the first location information in the land registration map data 44, and the brushes having the same first location information are read out. Dissolve processing for generating the shape of the land integration area that summarizes the above is performed (step S30).

  And the wide area registration means 20 performs the registration process which aligns the forest integrated area | region and land integrated area | region with which 1st location information is common (step S35).

  The registration process can be performed using a known method. For example, in this embodiment, an ICP (Iterative Closest Point) algorithm is used. The ICP algorithm automatically aligns two point groups given as inputs. For each point constituting one point group, the nearest point in the other point group is searched, and these are set as temporary corresponding points. A rigid transformation that minimizes the distance between corresponding points is estimated. Incidentally, the rigid transformation is a coordinate transformation that changes the direction and position of the object to be aligned but does not change the shape. By repeating this corresponding point search and rigid body transformation estimation, a motion for aligning the two point groups is estimated. A point group used as a reference for alignment is referred to as a model point group, and a point group that is transformed so as to overlap the model point group is referred to as a data point group.

  FIG. 7 is a schematic diagram for explaining ICP processing for aligning a figure in a forest plan map and a figure in a land register map. Here, the graphics in the forest plan map and land registration map to be aligned are defined as a forest integrated region 50 and a land integrated region 52, respectively. FIG. 7A shows an example of the forest integration area 50 and the land integration area 52, and FIG. 7B shows a point group randomly generated on the outline of each integration area in FIG. 7A. Show. In FIG. 7B, a point group 54 composed of white circle “◯” points is a point group generated on the outline of the forest integrated region 50, and a point group 56 composed of black circle “●” points. Is a point cloud generated on the outline of the land integration area 52. For example, the point group 56 is the model point group P and the point group 54 is the data point group Q, and the nearest neighbor point of the point group 56 is searched from each point of the point group 54 to generate the nearest neighbor point pair. It is not always necessary to generate the nearest point pair for all points in the point group 54.

A joint transformation for moving the data point group 54 by rotation / translation so as to minimize the sum of the distances of the generated nearest neighbor point pairs is obtained. A matrix representing the congruent transformation is represented by a symbol M. With the data point group generated from the initial forest integration area 50 and the land integration area 52 as Q ₀ and the model point group as P, the wide area registration means 20 performs data point group Q _i (i is 0 or more) by ICP processing. And the coordinate transformation obtained based on the nearest neighbor point pair generated from the model point group P as M _{i + 1} and the data point group moved by the transformation as Q _{i + 1} is recursively repeated. . The process is repeated such until follows, for example pre-specified number, or the convergence determination threshold sum of the distances of nearest neighbor point pair is predetermined, forest combined area 50 transformations was synthesized overall conversion M _i obtained It is defined as the coordinate conversion of the alignment of The coordinate transformation representing rotation and translation in a two-dimensional space can be expressed by a 3 × 3 matrix as is well known. In FIG. 7 (c), the point group 54a is an example showing the data point group Q obtained as a result of the iterative processing by ICP, and FIG. 7 (d) shows the process up to the point group 54a in FIG. 7 (c). a transformation matrix obtained by combining all transformation M _i is applied to the contour of the forest combined area 50 shown in FIG. 7 (a) is obtained, it shows a forest combined area 50a after the positioning.

  The coordinate conversion of the alignment for the forest integrated region 50 is common to the forest sections constituting the forest integrated region 50. Subsequent to the registration by the wide area registration unit 20, the detailed registration unit 22 performs individual registration for the region of interest using the partial region in the forest integrated region 50 as the region of interest (forest attention region).

  The detailed registration means 22 sets the second location information of the subdivision that is the forest section constituting the forest integrated region 50 as a search key (referred to as S small key) (step S40). For example, the detailed registration means 22 sequentially acquires the forest locations of the subgroups constituting the forest integrated region 50 in the forest plan map data 40, and when new second location information appears, sets it as the S small key. . Further, the detailed registration means 22 identifies the forest plot map data 40 having the second location information that matches the S small key among the forest sections constituting the forest integrated region 50. The second location information is information up to the branch number of the lot number in the forest location as described above.

  The detailed registration means 22 sets a search key (referred to as a T small key) corresponding to the S small key obtained in step S40, and performs a search process using the T small key on the land registration map data 44 (step S40). S45). Similar to the relationship between the S large key and the T large key, the T small key corresponding to the S small key is not necessarily the same as the S small key in general, but in this embodiment, it corresponds to the S small key. The T small key to be described is simply described as being the same as the second location information set in the S small key.

  If there is a land parcel having a land register location that matches the T small key (in the case of “YES” in step S50), among the land sections constituting the land integrated area 52 in the land register map data 44 by the search, The one having the second location information as the T small key in the land register location is specified. On the other hand, if there is no land parcel having the cadastral location that matches the T small key in the cadastral map data 44 (in the case of “NO” in step S50), the processing for the current S small key is ended and the processing is performed. Proceeding to step S90, if an unprocessed small S key exists in the current forest integration region, the process returns to step S40, and a new small S key is set.

  The processing in the case where there is a land block having the second location information matching the T small key in the land register map data 44 (in the case of “YES” in step S50) will be further described. In this case, the detailed registration means 22 uses the forest plan map data 40 to obtain information on the shape (boundary) of the subgroup extracted by searching the second location information with the S small key in the forest plan map data 40. And a dissolve process for generating a shape of a forest attention area in which small groups having the same second location information are collected is performed (step S55). Further, the detailed registration means 22 reads out the shape information from the cadastral map data 44 with respect to the brush world having the T small key as the second locating information in the cadastral map data 44, and the brush having the same second locating information is read. A dissolve process is performed to generate the shape of the land area of interest together (step S55). When there is only one forest section that matches the S small key, and when there is only one land section that matches the T small key, the one section is a forest attention area and a land attention area, respectively. Become.

  In the example shown in FIG. 3, the branch number is “1”, “2”, as the second location information for the first location information “... Three of “3” are set. Among these, for the second location information of branch numbers “1” and “2”, there is a land block having the second location information. Specifically, the item number “1” of the forest plan map data 40 when the second location information “..., Large character: 1, character: 1, lot number (real number): 100, branch number: 1” is used as a search key. The small group is the forest attention area, and the brush with the item number “1” in the land register map data 44 is the land attention area. Further, when the second location information “..., Large letters: 1, letters: 1, lot number (actual): 100, branch number: 2” is used as a search key, the item number “2” of the forest plan map data 40 and The area obtained by dissolving the small group of “3” becomes the forest attention area, and the brush of the item number “2” in the land register map data 44 becomes the land attention area.

  By the way, regarding the second location information of branch number “3”, the land section of item number “3” of land register map data 44 actually corresponds to the sub-group of item number “4” of forest plan map data 40. However, since the branch number of the land parcel is missing in the land register map data 44, there is no land parcel having the second location information, that is, an example in which “NO” is determined in step S50. Show.

  Following the dissolve process S55, the detailed registration means 22 performs a detailed registration process for aligning the forest attention area and the land attention area that share the second location information (step S60). The registration process can be performed by a well-known technique, similarly to the process in the wide area registration unit 20. For example, the above-described ICP algorithm is used to obtain coordinate transformation for aligning the data point group generated from the forest attention area with respect to the model point group generated from the land attention area.

  Processing subsequent to the detailed registration processing S60 will be described with reference to the flowchart of FIG. When the detailed registration is performed, the forest section correcting unit 24 performs correction to replace the outline of the forest attention area with the outline of the land attention area aligned with the forest attention area. In the present embodiment, the forest section correcting unit 24 performs the correction when the alignment state described above is in effect.

  Therefore, the forest section correcting means 24 calculates the overlapping area ratio AR between the forest attention area and the land attention area (step S65), and AR is one requirement of the matching state that AR is equal to or greater than a predetermined threshold value α. It is determined whether or not it is satisfied (step S70). For example, AR can be defined by the ratio of the area of the overlapping area of the forest attention area and the land attention area to the area of the sum area of the forest attention area and the land attention area. α can be set to 0.9, for example.

  When AR ≧ α (in the case of “YES” in step S70), the forest section correcting means 24 calculates the number NS of forest sections and the land attention area that constitute the forest attention area regarding another requirement of the matching state. The ratio with the number NT of the land parcels to comprise is investigated (step S75). If it is determined in step S70 that AR ≧ α, and further in step S75 it is determined that NS: NT is 1: 1 or n: 1 (where n is a natural number of 2 or more), the matching state. Therefore, the forest section correcting unit 24 performs correction to replace the outline of the forest attention area with the outline of the land attention area (step S80). Since the land parcel of the land attention area used for the contour update processing has been associated with the forest parcel, the forest parcel modification means 24 sets the flag FL to a value “1” indicating that the correspondence has been established. (Step S85).

  Incidentally, in the case where the second location information “..., Large character: 1, character: 1, lot number (actual number): 100, branch number: 1” described above in the example shown in FIG. When NT = 1: 1 and the second location information “..., Large letters: 1, letters: 1, lot number (real number): 100, branch number: 2” is the S small key, NS: NT = n: 1.

  If NS: NT = n: 1 in step S75, the forest attention area includes a boundary between n pieces constituting the forest fauna boundary. In this case, the arithmetic processing unit 4 performs a process of determining the forest facies in the updated forest attention area by the internal boundary correcting means 26. The internal boundary correction means 26 corrects the forest fauna boundary existing as the internal boundary line in the forest attention area in accordance with the update of the contour of the forest attention area by the contour of the land attention area (step S90).

FIG. 8 is a schematic diagram for explaining an example of correction processing of the internal boundary line by the internal boundary correction means 26. In FIG. 8, in this example, the forest attention area after step S60 is an area represented by an outline 60a, and the forest fauna boundary 62a is represented by a solid line. Further, in FIG. 8, a new outline 60b of the forest attention area replaced with the outline of the land attention area in step S80, and a forest fauna boundary 62b obtained by correcting the forest fauna boundary 62a according to the area are indicated by dotted lines. Has been. The inner boundary correction means 26 obtains the nearest neighbor points P _B1 and P _B2 on the new contour 60b for the end points P _A1 and P _A2 of the forest facies boundary 62a, which are the connection points with the contour 60a of the forest attention area, respectively. A new forest phase boundary 62b is determined by using P _B1 and P _B2 as points corresponding to the points P _A1 and P _A2 . Thus, in the example of FIG. 8A, the line segments P _A1 P _M and P _A2 P _M constituting the forest phase boundary 62a are corrected to the line segments P _B1 P _M and P _B2 P _M constituting the forest phase boundary 62b, respectively. The

In the example of FIG. 8 (b), the nodal point _{P M} of the forest type field 62a is located outside the new contour 60b. In this example, the modified portion contained within the new contour 60b of the point _{P A1, P A2} to the point _{P B1, P B2} is moved inside the boundary line after deformation obtained by _P B1 _P M _{P B2} It is assumed that the forest phase 62b. That is, the intersection of the line segment P _B2 P _M and the contour 60b is P ′ _B1 , and the new forest phase boundary 62b is the line segment P ′ _B1 P _B2 .

In addition, it is preferable to correct the forest facies so that the number of sub-segments in the forest attention area does not change and the change in the area of each sub-unit is suppressed to an allowable range. The correction of the forest boundary can be made by another method satisfying the condition, and a method satisfying the condition among several methods can be selected and adopted as appropriate. As one of the other methods, for example, only the end points of the forest phase boundary before correction that are located inside the new contour (point P _A2 in the example of FIG. 8A) are the nearest neighbor points as described above. (The point P _{B2 in} FIG. 8 (a)) is moved to deform the forest facies boundary, and the portion of the deformed forest facies within the new contour is corrected (line in FIG. 8 (a)). P ′ _B1 P _M P _B2 ), or an extension line of the line segment to the end point (line segment P _M P _{A2 in} FIG. 8A) and a new contour (FIG. 8A). It may be moved to the intersection with the contour 60b) (point P ′ _{B2 in} FIG. 8A) to determine the corrected forest phase boundary (line P ′ _B1 P _MP P ′ _{B2 in} FIG. 8A) .

  When NS: NT is 1: 1 or n: 1, the arithmetic processing unit 4 associates the land attention area with the forest attention area as described above, sets the flag FL to “1”, and sets the current small S Terminates processing for the key. In this case, the arithmetic processing unit 4 uses the forest book information updating means 32 to store the description information of the forest plan map data 40 and the forest book data 42 corresponding to the current forest attention area, and the land registration map data of the associated land attention area. 44 and the register information of the cadastral data 46 can be updated. Accordingly, it is possible to correct the description of the forest book data 42 using the cadastral book data 46 for the predetermined items that are expected to be generally more accurate among the items described in the forest book data 42. it can. For example, the owner and area can be updated.

  When the process for the matching NS: NT is 1: 1 or n: 1 is completed, the process proceeds to step S95. Then, if there is an unprocessed small S key in the current forest integration region, the arithmetic processing device 4 returns to step S40 and sets a new small S key.

  On the other hand, when the forest attention area and the land attention area are not in a consistent state, specifically when AR <α (in the case of “NO” in step S70), and NS: NT is 1: in step S75. If neither 1 nor n: 1, the arithmetic processing unit 4 ends the process for the current S small key while keeping the flag FL at the initial value “0”, and proceeds to step S95. If an unprocessed small S key exists in the current forest integration region, the process returns to step S40, and a new small S key is set.

  Further, when the loop process (steps S40 to S95) regarding all the S small keys for the forest location corresponding to the S large key set in step S15 is completed, the process proceeds to step S100. If there is an unprocessed S large key, the process returns to step S15, and a new S large key is set.

  On the other hand, when there is no unprocessed S large key in step S100, that is, when the processing of steps S20 to S95 is completed for all the S large keys for the forest location of the forest plan map data 40, the arithmetic processing unit 4 Advances the process to step S105 in FIG. 6, and executes the process by the partition boundary setting means 28.

  The section boundary setting means 28 sequentially sets the T large key in the land register map data 44 (step S105), and specifies the land section that matches the T large key (step S110). In addition, a search process for the S large key corresponding to the T large key is performed on the forest plan map data 40, and a forest section matching the key is specified (step S115).

  The partition boundary setting unit 28 selects a region composed of land partitions identified by the T large key and having a flag FL value of “0”, and matches the forest blocks in the consistent state among the forest integrated regions identified by the S large key. The boundary of the forest section is updated with respect to the part other than the part. For this purpose, the parcel boundary setting means 28 reads information on the shape of the land parcel that matches the T large key and the value of the flag FL is “0” from the cadastral map data 44, and overlaps the land parcel. The information on the shape of the forest section that has the positional relationship and matches the S large key is read from the forest plan map data 40 (step S120). In determining the positional relationship, the registration result obtained in step S35 with respect to the land integration area and the forest integration area corresponding to the current T large key and S large key is used to determine the land after the registration. An overlap can be determined between the parcel and the forest parcel.

  Then, the partition boundary setting unit 28 performs region division processing using the graphic information acquired in step S120 (step S125). Specifically, in the division processing, the forest with the boundary between the contour of the land parcel read in step S120 and the portion existing in the land parcel read out in step S120 out of the contour of the forest parcel read out in step S120. A partition is defined.

  The section boundary setting means 28 updates the forest plan map data 40 with the forest section defined by the boundary (step S130). Further, the value of the flag FL for the land parcel used for the update is changed to a value “1” indicating that the forest parcel is associated (step S135).

  If there is an unset T large key in the cadastral map data 44 (step S140), the section boundary setting means 28 returns to step S105 and repeats the process. The process proceeds to S145.

  In the above processing by the partition boundary setting means 28, it is determined that there is no T small key corresponding to the S small key in step S50, and that the condition of the matching state is not satisfied in steps S70 and S75. The parcel boundaries are reset for the forest parcels that have been made.

  For example, the land parcel with the item number “3” in the land register map data 44 of FIG. 3B is determined to be “NO” in step S50 because the branch number is not written, and at the time of step S105, FL = 0. In the search in step S115, the section boundary setting unit 28 associates the subdivision of the item number “4” of the forest plan map data 40 of FIG. 3A with the land section, and uses the shape information of the land section. Update the forest plan map data 40 of the small group.

  FIG. 9 is a schematic diagram showing an example of setting the boundaries of forest sections by the section boundary setting means 28. In FIG. 9A, the solid line represents the boundary of the three land sections 64a, 64b, and 64c that form one land integration area 64, and the forest is aligned with the land integration area 64 by wide-area registration. The boundary between the two forest sections forming the integrated region 66 is represented by a broken line. One of the forest sections is in alignment with the land section 64a, and therefore the flag FL of the land section 64a is already set to the value “1” in step S85. The solid and broken lines in FIG. 9B represent the boundaries set in step S125 for the land integration area 64 in FIG. 9A. In steps S110 and S115, the land integration area 64 and the forest integration area 66 are specified. In step S120, the shape information of the land sections 64b and 64c whose flag FL is “0” is acquired from the land register map data 44. Further, as the forest sections corresponding to the land sections 64 b and 64 c, one shape information in an inconsistent state among the two forest sections of the forest integrated region 66 is acquired from the forest plan map data 40. In step S125, the partition boundary setting means 28 sets the boundaries of the land sections 64b and 64c (solid line) and the boundaries of the forest sections existing in the land sections (broken lines) as new forest section boundaries.

  When the processing of steps S105 to S140 by the partition boundary setting unit 28 is completed, the arithmetic processing unit 4 executes the processing by the lot number mismatch area processing unit 30 from step S145. In the processing so far, the T large key corresponding to the S large key is not found in step S25 due to the lot number inconsistency or the like, and the forest section that is not associated with the land section remains unprocessed regarding the correction of the contour. Yes. As an example of such a lot number inconsistency state, there is a case where the lot number is not described in the lot register map data 44 due to the fact that the brush boundary is undecided. For example, in the land register map data 44 of FIG. 3B, the land parcel of item number “999” corresponds to this. The lot number mismatch area processing means 30 performs a correction process for such unprocessed remaining forest sections.

  The lot number inconsistent area processing means 30 sequentially sets the land sections having the flag FL of “0” as processing targets in the land register map data 44 (step S145). Then, the shape of the land section is read from the land register map data 44, and a space search process is performed for searching the forest section map data 40 for a forest section suitable for the shape (step S150).

  FIG. 10 is a schematic diagram for explaining a space search process for specifying a location that matches the land block to be processed in the forest plan. FIG. 10A shows the outline 70 of the land block to be processed by a solid line, and FIG. 10B shows the boundary 72 of the forest block in the forest plan map to be searched by a broken line. FIG. 10C shows a state in which the contour 70 of the land parcel is adapted to the boundary 72 of the forest parcel, and the position of the land parcel in the state is obtained by space search. The lot number inconsistent area processing means 30 extracts a forest block that is mostly included in the contour 70 of the position searched for in space. For example, a forest section having a ratio of 0.9 or more with respect to the entire portion included in the contour 70 with respect to the area of the forest section is extracted. FIG. 10 (d) shows the extraction result, and the region composed of the forest section 74 a and the forest section 76 a is extracted as a location that matches the land section having the contour 70.

  The space search process S150 can be performed using the ICP algorithm described above. FIG. 11 is a schematic diagram for explaining the ICP process in the space search process. FIG. 11A shows a point group 80 randomly generated on the contour 70 of the land parcel shown in FIG. FIG. 11B shows a point group 82 randomly generated on the boundary 72 of the forest section shown in FIG. 10B by a white circle “◯”. These point groups 80 and 82 are registered by the ICP algorithm. FIG. 11C shows the result of the registration.

  When a suitable forest section is extracted in the space search process S150 (in the case of “YES” in step S155), the lot number inconsistent area processing means 30 determines that the area where these forest sections 74a and 76a are combined is a step. Assuming that the area corresponds to the land parcel set in S145, the forest plan information relating to the area is updated using the information of the land register map data 44 of the land parcel.

  For example, the lot number mismatch area processing means 30 corrects the forest plan map data 40 using the land register map data 44 (step S160). Specifically, the contour of the area where the retrieved forest sections 74a and 76a are combined is replaced with the outline 70 of the land section used as a key for space search. Further, the boundary 78a between the forest sections 74a and 76a is corrected in accordance with the correction of the contour. The correction of the boundary between the forest sections can be performed by the same method as the correction of the internal boundary line in the forest attention area described in step S90.

  FIG. 10E shows the correction result in step S160 regarding the forest sections 74a and 76a of FIG. 10D, and the forest sections 74a and 76a are updated to forest sections 74b and 76b whose shapes are indicated by solid lines. . A region where the forest sections 74b and 76b are integrated is defined by a contour 70, and the forest sections 74b and 76b are separated by a corrected boundary 78b. Thus, the contours of the corrected forest sections 74b and 76b are obtained, and the lot number mismatch area processing means 30 can update the forest plan map data 40 using this.

  The lot number mismatch area processing means 30 changes the value of the flag FL for the land parcel to be processed in step S145 to a value “1” indicating that the forest parcel is associated (step S165).

  The lot number mismatch area processing means 30 executes the step S165, or if no suitable forest section is extracted in the space search process S150 (in the case of “NO” in the step S155), After the process, the process proceeds to step S170. If there is an unprocessed land block, the process returns to step S145, and the process is repeated for a new unprocessed land block.

  On the other hand, when the lot number inconsistent area processing means 30 completes the processes of steps S145 to S165 for all the land sections for which the flag FL is “0” at the end of step S140 (step S170), the forest plan information adjustment system 2 Ends the adjustment process for the forest plan map data 40 read from the storage device 6 in step S5.

  In addition, the arithmetic processing unit 4 determines the matching status between the forest parcel and the land parcel in the attribute data or the forest book data 42 of the forest plan map data 40 and the attribute data or the land register data 46 of the land register map data 44. Can be added and recorded. At that time, it is possible to record a forest section or a land section that is not associated with both sections in the above-described processing as an error section and output it from the storage device 6 or the like as an error list.

  Further, in the above-described processing, a portion of the ground area that is not in the forest plan map data 40 is basically excluded from the work target (outside the forest plan area) and is not updated. That is, the range is blank in the forest plan map data 40.

  2 forest planning information adjustment system, 4 arithmetic processing unit, 6 storage device, 8 input device, 10 output device, 20 wide area registration means, 22 detailed registration means, 24 forest section correction means, 26 internal boundary correction means, 28 sections Boundary setting means, 30 lot number inconsistent area processing means, 32 forest book information update means, 40 forest plan map data, 42 forest book data, 44 land register data, 46 land register data, 50 forest integrated area, 52 land integrated area.

Claims (6)

The land parcel shown in the lottery map, public map, and lot number map maintained by the municipality, including the forest parcel shown in the forest plan map and the forest location that is the lot number information of the forest parcel A forest plan information adjustment system that adjusts based on the information of the land register where the information of
A forest integrated region in which the first location information up to a predetermined upper hierarchy in the representation of the forest location is the forest integrated region in which the forest partitions are combined, and the first location information of the forest integrated region corresponds to the forest location A wide area registration means for aligning the land integration area in which the land parcels having the land register locations are grouped together within a predetermined first adjustment range;
After the registration by the wide area registration means, the forest attention area consisting of the forest section in which the second location information more detailed than the first location information is common for the forest location, and the second location information of the forest attention area Means for performing detailed registration for aligning the land attention area composed of the land parcels having the land location corresponding to the second land area within a second adjustment range determined narrower than the first adjustment range;
A forest partition correcting means for correcting the forest partition boundary by replacing the contour of the forest attention region with the contour of the land attention region aligned with the forest attention region;
A forest planning information adjustment system characterized by comprising: In the forest plan information adjustment system according to claim 1,
The forest parcel correction means, when the land attention area is a land of one stroke and the overlapping area ratio between the forest attention area and the land attention area is equal to or greater than a predetermined threshold value, A forest plan information adjustment system, wherein the correction is performed by replacing an outline of an attention area with an outline of the land attention area. In the forest plan information adjustment system according to claim 2,
An internal boundary correction means for correcting the internal boundary line when the forest attention area is in the aligned state and has an internal boundary line;
The internal boundary correction means performs a deformation of moving the connection point of the internal boundary line with the outline of the forest attention area to the nearest point on the outline of the land attention area, and Of which, the portion included in the land attention area is the modified internal boundary,
Forest planning information adjustment system characterized by In the forest plan information adjustment system according to claim 2 or claim 3,
When the forest attention area and the land attention area are in the aligned state, the description information of the forest book corresponding to the forest attention area is used as the directory register, the registry, and the property tax tax ledger corresponding to the land attention area. A forest plan information adjustment system characterized by comprising forest book information update means for updating based on the description information.   5. The forest planning information adjustment system according to claim 2, wherein after the correction by the forest section correction unit, a portion of the forest integrated region other than the forest attention region in the aligned state is corrected. A boundary of the land parcel in the land integrated area aligned with the forest integrated area, and a boundary of the forest parcel included in a portion of the land integrated area excluding the land attention area in the aligned state A forest plan information adjustment system characterized by having a section boundary setting means for setting as a boundary between various forest sections. The land parcel shown in the lottery map, public map, and lot number map maintained by the municipality, including the forest parcel shown in the forest plan map and the forest location that is the lot number information of the forest parcel And a program for causing a computer to perform adjustment processing based on the information on the land ownership, which is the lot number information of the land section,
A forest integrated region in which the first location information up to a predetermined upper hierarchy in the representation of the forest location is the forest integrated region in which the forest partitions are combined, and the first location information of the forest integrated region corresponds to the forest location A wide area registration means for aligning the land integration area in which the land parcels having the land register locations are grouped together within a predetermined first adjustment range;
After the registration by the wide area registration means, the forest attention area consisting of the forest section in which the second location information more detailed than the first location information is common for the forest location, and the second location information of the forest attention area Means for performing detailed registration for aligning the land attention area consisting of the land parcels having the land registration corresponding to the position within a second adjustment range determined narrower than the first adjustment range; and
A forest partition correction means for correcting the forest partition boundary by replacing the contour of the forest attention region with the contour of the land attention region aligned with the forest attention region;
A program characterized by functioning as

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