JP2008196231A - Stone wall repair support device and stone wall repair support method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stone wall repair support device capable of considering the construction of stone wall repair in advance using a computer. <P>SOLUTION: The stone wall repair support device comprises a stone data storage means storing three-dimensional shape data of every stone 1 constituting a stone wall; an interference confirming means for obtaining the interference state of stones based on the three-dimensional shape data between at least two stones stored in the stone data storage means; a means for obtaining an approximate line which approximates a ridgeline to be restored referring to the three-dimensional shape data of the stones stored in the stone data storage means, and defining the designed slope face of the stone wall to be restored based on the approximate line; a means for determining the arranged positions of the stones to coincide with the defined designed slope face while confirming the interference state of the adjacent stones by the interference confirming means; and a means for outputting the arranged positions of the stones whose arrangement is determined. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a stone wall restoration support method that supports construction management of stone wall restoration using a computer.

  In Ishigaki maintenance / restoration work, etc., in the conventional construction management, the state of the side surface (Ishigaki slope) that appears in the table is treated as the current state, and maintenance and restoration are performed. For example, it has been generally performed to confirm the current state by taking a stereo photograph of the surface of a stone wall before construction or measuring the position by measuring a three-dimensional laser. After this confirmation, the stone wall is dismantled, the defective part is corrected, and the work flow is restored to the state of the building before dismantling again.

As a prior art, there is known a method of creating a structural diagram and a construction control diagram for restoring an existing stone wall such as a cut stone layered structure to an original shape (see, for example, Patent Document 1).
Japanese Patent No. 3001548

  By the way, the state of the stone wall before dismantling is a state that needs to be repaired, so it is not necessarily restored to the state before dismantling, so in the restoration work to assemble the stone materials Of course, not only the surface condition, but also the position and shape of the stone inside the stone wall are important. In particular, in order to grasp the restoration shape of masonry (fabric, arithmetic woodwork) using square stone, check the presence or absence of mutual interference between stones and estimate the stone wall restoration shape derived from the stone shape It will be necessary.

  Also, when restoring, it is difficult to return each stone to its original position in millimeters, but if an error occurs in this assembly work and mutual interference of stones is unavoidable, reassemble depending on the situation. There is a problem in that the rework is generated and the construction cost increases. In addition, stone walls have an asset value as a cultural property, and it is not possible to select a means of scraping off those parts simply because they interfere, so a sufficient construction plan must be made in advance.

  This invention is made | formed in view of such a situation, and it aims at providing the stone wall restoration assistance apparatus and method which can examine the construction of stone wall restoration beforehand using a computer.

  The present invention is based on stone data storage means for storing three-dimensional shape data for each stone constituting the stone wall, and three-dimensional shape data between at least two stone materials stored in the stone data storage means, An interference confirmation means for obtaining the interference state of the stone material, and an approximate line that approximates the ridge line to be restored is obtained by referring to the three-dimensional shape data of the stone material stored in the stone data storage means, and based on the approximate line The means for defining the design slope of the stone wall to be restored, the means for determining the placement position of the stone based on the defined design slope, and the placement position of the stone determined by the placement are output. Means.

  In the present invention, the interference confirmation means defines a bounding box in which each of the stones whose interference state is to be confirmed is included, and subdivides each of the bounding boxes when the bounding boxes overlap each other. Only when there is an overlap between the subdivided boxes, the surface of each stone is divided into a plurality of triangular areas, and the intersection state of the triangular areas is determined to obtain the interference state of the stones. It is characterized by that.

The present invention provides a stone data storage means for storing three-dimensional shape data for each stone constituting a stone wall, an arrangement position determining means for determining an arrangement position of the stone, and at least arranged by the arrangement position determining means. Based on the three-dimensional shape data of two stone materials, the interference confirmation means for obtaining the interference state of the stone materials, and the slope of the stone wall to be restored based on the three-dimensional data of the stone materials arranged by the arrangement position determining means It is a stone wall restoration support method that supports the construction of stone wall restoration using a computer support device having a design slope definition means to define, while checking the interference state of adjacent stone materials by the interference confirmation means, Using the arrangement position determining means, the stones constituting the ridgeline of the stone wall are stacked so as not to interfere with each other;
The design slope defining means refers to the three-dimensional shape data of each stone in a state where the stones constituting the ridge line are stacked, obtains an approximate line that approximates the ridge line to be restored, and based on the approximate line, A slope defining step for defining the design slope of the stone wall to be restored, and the surface of the stone constituting the slope to be restored is the design slope while confirming the interference state of the adjacent stone by the interference confirmation means. The arrangement determining step for determining the arrangement position of the stone using the arrangement position determining means so as to coincide with the information, and the information for specifying the arrangement position of the stone determined by the arrangement is output by the arrangement position determining means And a position information output step.

  According to the present invention, the stones constituting the ridge lines are piled up so that the stones do not interfere with each other, thereby obtaining the ridge lines to be restored, and based on the obtained ridge lines, the stone wall slope to be restored is defined, It is possible to perform a pre-examination on the computer to determine the placement position of each stone so that the surface of the stone constituting the stone matches the stone slope to be restored, so that appropriate stone wall restoration can be performed This makes it possible to reduce rework as much as possible, so that the construction cost can be reduced.

Hereinafter, a stone wall restoration support device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the embodiment. In this figure, reference numeral 1 denotes a support device configured by a computer in order to support the construction management of the stone wall restoration work. Reference numeral 2 denotes a measuring instrument (stone material acquisition means) that measures and acquires three-dimensional shape data of a stone wall to be repaired. Reference numeral 11 is used to transmit slope coordinate information and stone shape information from the later-described shape data input unit 14 to the stone wall slope data storage unit 15 and the stone data storage unit, and to provide instructions from the later-described input unit 12. The information is transmitted to each of the display unit 13, the stone wall slope data storage unit 15, the stone data storage unit 16, the design slope definition unit 17, the arrangement position determination unit 18, and the interference confirmation unit 19, and various processes (designs described later) It is a control unit of the support apparatus 1 that performs overall control of slope definition processing, arrangement position determination processing, interference confirmation processing, and output processing. Reference numeral 12 denotes an input unit composed of a mouse and a keyboard. Reference numeral 13 denotes a display unit composed of a liquid crystal display device or the like. Reference numeral 14 denotes a shape data input unit that inputs the shape data of the stone wall acquired by the measuring device 2 from the measuring device 2. Reference numeral 15 denotes a stone wall slope data storage unit for storing stone wall slope data. Reference numeral 16 denotes a stone data storage unit that stores shape data of each stone constituting the stone wall. Reference numeral 17 denotes a design slope definition unit that designs and defines the slope of the stone wall to be restored after dismantling. Reference numeral 18 denotes an arrangement determining unit that determines an arrangement position after restoration of each dismantled stone material. Reference numeral 19 denotes an interference confirmation unit for confirming interference with other stone materials when determining the arrangement position of the stone materials. Reference numeral 21 denotes a three-dimensional shape data measurement unit that uses a laser beam to measure the shape of a stone wall slope and measure the shape of each stone material that forms the stone wall. Reference numeral 22 denotes a stone wall slope data storage unit that stores stone wall slope data measured by the three-dimensional shape data measurement unit 21. Reference numeral 23 denotes a stone data storage unit that stores stone data measured by the three-dimensional shape data measurement unit 21.
The relationship between the positions of the stones is guaranteed by measuring at least three reference spheres previously set at known positions by the three-dimensional shape data storage unit 21, and based on the relative positions with the reference spheres. This is done by specifying the location of the stone.

  Next, an operation for measuring the shape data of the stone wall will be described with reference to FIG. First, the operator attaches four markings P1 to P4 that can be read by the measuring instrument 2 to the four corners of the stone material A1 constituting the stone wall, and assigns stone identification numbers that can uniquely identify each stone material. Here, the code | symbol provided on drawing is used for a stone identification number. Before dismantling the stone wall, the operator measures the current three-dimensional shape data before the restoration of the stone wall slope formed by the stone material with the markings P1 to P4 inserted by the measuring device 2. The three-dimensional shape data measurement of the stone wall slope is to obtain the slope shape data in a state where stones are stacked and the data of the arrangement positions of the stones. At this time, the operator also measures the shape data for the inner surface portion of the stone wall. Further, the measuring instrument 2 also measures the reference sphere BP arranged in a known position in advance together with the stone wall slope. The measuring instrument 2 stores the shape data of each slope in the stone wall slope data storage unit 22. Subsequently, the worker disassembles the stone walls in order from the top, and measures the shape of the stone material by the three-dimensional shape data measurement unit 21 for each disassembled stone material. The measuring device 2 stores the three-dimensional shape data of the stone obtained by measurement in the stone data storage unit 23. By this operation, the data of the slope shape of the stone wall before dismantling is stored in the stone wall slope data storage unit 22 of the measuring device 2, and the stone data storage unit 23 stores the three-dimensional shape of each disassembled stone material. Data is stored.

  Next, the operator operates the input unit 12 of the support apparatus 1 to instruct shape data input. In response to this, the control unit 11 reads the shape data stored in the stone wall slope data storage unit 22 and the stone data storage unit 23 in the measuring instrument 2 via the shape data input unit 14. For reading the shape data, a dedicated interface may be used, or the shape data may be written to the recording medium by the measuring instrument 2 and the recording medium may be read by the support device 1.

  The control unit 11 writes the shape data input from the measuring instrument 2 into the stone wall slope data storage unit 15 and the stone material storage unit 16, respectively. As a result, the data of the slope shape of the stone wall before dismantling is stored in the stone wall slope data storage unit 15 in the support device 1, and the stone data storage unit 16 stores the three-dimensional shape of each disassembled stone material. Data is stored. Here, the table structure of the stone wall slope data storage unit 15 and the stone material storage unit 16 will be described with reference to FIGS.

  FIG. 3 is a diagram showing a table structure of the stone wall slope data storage unit 22 shown in FIG. The Ishigaki slope data storage unit 22 includes a slope identification number that can uniquely identify each slope (surface sandwiched between two ridge lines) constituting the stone wall, a reference sphere, and a measurement point on the slope. A set of relative position coordinate values is stored in association with each other. FIG. 4 is a diagram showing a table structure of the stone data storage unit 23 shown in FIG. The stone data storage unit 23 includes a stone identification number that can uniquely identify each stone constituting the stone wall, coordinate values (relative coordinates with respect to the reference sphere) of the four markings P1 to P4 attached to each stone, and the stone A set of measurement point coordinate values on the surface is stored in association with each other.

  Next, the operation of the arrangement position determination unit 18 shown in FIG. 1 will be described with reference to FIG. When the operator operates the input unit 12 to select a function for determining the arrangement position of the stones constituting the stone wall, the control unit 11 displays a menu of the arrangement position determination function (means) on the display unit 13, The arrangement determination unit 18 calls and processes the three-dimensional shape data and slope shape data of the stone from the stone wall slope data storage unit 15 and the stone material data storage unit 16 and executes the functions selected by the operator. The functions that can be selected here are (1) “function to manually move stones by visual inspection”, (2) “interval between stones display function”, (3) “equal arrangement function”, (4) “ “Rotating / moving function for matching stone surface with design slope”, (5) “Moveability setting function for each stone” and stone arrangement position output function (not shown).

  (1) “A function of manually moving a stone by visual observation” is a function in which an operator visually observes a stone displayed on the display unit 13 and designates a movement including rotation with a mouse or the like of the input unit 2. . (2) The “interval display function between stones” is a function for displaying the distance between two selected stones on the display unit 13. (3) The “equal arrangement function” is an automatic uniform arrangement in which the arrangement position determination unit 18 calculates a stone row (at least one stone) sandwiched between two stones displayed on the display unit 13. It is a function to do. (4) “Rotating / moving function to match the surface of the stone with the design slope” is a stone wall that is designed in the design slope of the stone wall designed in the design slope definition part 17 (to be restored) For example, the surface of the stone to be processed is calculated so that the markings P1 to P4 are matched within a predetermined range, and the stone is automatically rotated and moved to be arranged. (5) “Moveability setting function for each stone” is a function for setting whether movement is possible for each stone. A stone that is prohibited from moving can be moved by using another arrangement position determination function. become unable. “Stone arrangement position output function (means)” includes the coordinate values of the stones arranged using the functions (1) to (5) (the coordinate values of the markings P1 to P4) and the coordinate values of the design slope surface DS. The function to display the coincidence status of the stone surface with the design slope DS, which will be described later, and the interference status between the stone values numerically or on the screen (display unit) in the form of a chart or print it out on paper with a printer (not shown) It is. The operator uses the above-described arrangement position determination function to determine the arrangement position of the stone so that the surface of the stone constituting the stone wall coincides with the designed slope.

  Next, the operation of the design slope definition unit 17 shown in FIG. 1 will be described with reference to FIG. First, based on the respective data stored in the stone wall slope data storage unit 15 and the stone data storage unit 16, the input unit 12 instructs the control unit 11 to display the current stone wall before repair on the display unit 13. . While looking at the current stone wall displayed on this screen, the operator operates the input unit 12 to select a function for defining the design slope. Here, the operator defines the ridge line of the stone wall by using only the stone material constituting the ridge line of the current stone wall by using the arrangement position determination function described above. In the definition of the ridgeline of the stone wall, the worker corrects the stacking of the stones constituting the ridgeline of the stone wall. FIG. 5A is an example in which the display unit 13 displays a state in which the stone materials A1 to A5 constituting the ridgeline of the stone wall are stacked and corrected in order from the bottom. In this stacking correction work, first, based on the foundation stone below the ground (GL), the stone material A5 on it is arranged so that the mutual surfaces coincide with each other, and the stone material A4 is placed on the stone material A5 in the same manner as the stone material A4. Stack up. At this time, the operator determines an arrangement position of the stone A4 using an interference confirmation function described later so that the stone A5 and the stone A4 do not interfere with each other. And stone materials A3, A2, and A1 are piled up in the same procedure.

  Next, an operation for obtaining a ridgeline in a state in which the stone materials A1 to A5 are stacked and corrected in order from the bottom is performed. Then, the design slope definition part 17 calculates | requires the virtual ridgeline (approximate line) which tied the edge of the arrange | positioned stone material by calculation. As shown in FIG. 5B, the approximate line is a ridge line C1 along the slope S1 of the stone wall. Subsequently, the design slope definition unit 17 obtains the design slope DS from the calculated ridgeline C1. This design slope surface DS can be set three-dimensionally from the ridgeline C1 and the slope of the existing stone wall outside the repair range. With this operation, the design slope definition unit 17 can define the design slope DS shown in FIG. This design slope DS becomes the slope of the stone wall to be restored. The operator matches the design slope DS defined here with the surface of the stone constituting the slope to be restored, and uses the above-described arrangement position determination function so that there is no interference between the stones. Determine the location of the stone. FIG. 6A is an example displayed on the display unit 13 by using the stone arrangement position output function. In this figure, an overall image of a stone wall is displayed that shows whether or not the surface of each stone coincides with the design slope DS, and displays that it is interfering with other stones. Yes. In this figure, the area where the design slope surface DS and the surface of the stone coincide is the surface of the stone, and the area where the design slope surface DS and the surface of the stone do not coincide is the surface of the design slope surface DS. Is displayed. Also, in each stone, the stone that is in a state of interfering with (overlapping with) the other stone is colored and displayed in a color that can be distinguished from the surface of the stone and the design slope surface DS. Stones that interfere with other stones can be displayed (see FIG. 6B) for confirming the detailed position of the interference.

  The determination of the design slope DS can not be determined uniquely, but is actually determined by trial and error. For example, if there is a stone that cannot move among stones other than the stones that make up the design slope DS, the design slope DS with the ridgeline that was initially determined will move that stone and cannot be used in practice. There is. In such a case, the previously defined edge line is slightly modified to define a new edge line, and a new design slope DS is determined. Then, the definition of the ridge line and the determination of the design slope surface DS are repeated until it becomes unnecessary to move the stone that cannot be moved. In this embodiment, the ridgeline of the stone wall is an intersection line of two slopes, but even if there is only one slope, first, one vertical line along the slope is first drawn. Since it will be defined, it shall be included in the ridgeline.

  Next, the operation of the interference confirmation unit 19 shown in FIG. 1 will be described with reference to FIGS. First, when an operator selects a function for confirming interference between stone materials, the interference confirmation unit 19 obtains coordinates after movement for the stone material for which interference confirmation is performed (step S1). Next, the interference confirmation unit 19 selects one stone material from the stone materials constituting the stone wall (step S2), and determines whether the selected stone material is an object for interference calculation (is an adjacent stone material) or not. Determine (step S3). As a result of this determination, if it is not an interference calculation target, the next stone is selected (steps S14 and S2). On the other hand, if the selected stone is an interference calculation target, the interference confirmation unit 19 obtains an overlap between the bounding boxes of the two stones (the stone to be subjected to interference confirmation and the selected stone) (step S4). The bounding box is a virtual rectangular parallelepiped (see FIG. 8A) that circumscribes the surface of the target stone and includes the stone. The interference confirmation unit 19 calculates and obtains an overlap between the two virtual rectangular parallelepipeds (bounding boxes), and determines whether or not they overlap (step S5). The determination of this overlap (interference) is performed as follows. Among two adjacent bounding boxes, the maximum value of the X coordinate of the second bounding box that is located where the X coordinate value of the first bounding box is smaller than the minimum value of the X coordinate of the first bounding box. When it is large, it interferes with the X coordinate. For this reason, in this comparison process, the maximum value and the minimum value are compared for all the XYZ coordinates, and it is determined that interference occurs when the above condition is satisfied for all the coordinates. If the result of this determination is that they do not overlap, the next stone selection is performed (steps S14 and S2).

  On the other hand, when the two bounding boxes overlap, the interference confirmation unit 19 subdivides each of the two stone materials (bounding boxes) (in this example, 9 × 9 81 divisions) (step S6; FIG. 8 (b) and (c)), the overlap between the subdivided division boxes is obtained (step S7). Then, the interference confirmation unit 19 determines whether or not the subdivision boxes are overlapped (step S8). This determination is the same as the overlap determination of the bounding box that is not subdivided, and the second subdivision box that is located at the place where the X coordinate value of the first subdivision box is small in the two adjacent subdivision boxes. When the maximum value of the X coordinate is larger than the minimum value of the X coordinate of the first subdivision box, the X coordinate interferes. For this reason, in this comparison process, the maximum value and the minimum value are compared for all the XYZ coordinates, and it is determined that interference occurs when the above condition is satisfied for all the coordinates. If the result of this determination is that there is no overlap, the next subdivision box is selected and the process is repeated (steps S13 and S7).

  The bounding box setting program including the subdivision box for this one stone is held in the interference confirmation unit 19. The coordinate data of each bounding box is stored in the stone data storage unit 16 and is called up from the interference confirmation unit 19 and used. Moreover, the interference determination program between the above bounding boxes is held in the interference confirmation unit.

  Next, when the subdivided boxes overlap each other, the interference confirmation unit 19 intersects the triangular regions that approximate the fine irregularities on the surface based on the three-dimensional shape data of the stone (see FIG. 8D). Is determined (step S9), and it is determined whether or not the triangular regions intersect (step 10). Here, the setting to divide the surface of the stone into a large number of small triangular regions is a known 3D analysis held in the control unit 11 based on the three-dimensional shape data of the stone stored in the stone data storage unit 16. The stone material data divided by the triangular area is stored in the stone data storage unit 16 by software (for example, “Polyworks”). Then, the interference confirmation unit 19 calls each piece of data of a large number of triangular areas belonging to the subdivision (bounding) box to be determined, and determines whether or not the triangular areas intersect with each other. The intersection determination method described in “Practical Analysis of Optimized Ray-Triangle Intersection” is used. The intersection determination program based on this is held in the interference confirmation unit 19.

  As a result of this determination, if the triangular regions intersect, the intersecting triangular regions are colored (step S11) and displayed (see FIG. 6B), and if they do not intersect, coloring is not performed. This process is performed for all triangular regions (step S12) and for all subdivision boxes (step S13). And an interference confirmation process can be performed by performing a process repeatedly about all the stone materials (step S14).

  In this way, each of the stones for which the interference state is to be confirmed defines a bounding box that is included inside, and when the bounding boxes overlap, each of the bounding boxes is divided into subdivided boxes, and this subdivision is performed. Since the process for obtaining a detailed overlap area (triangle area intersection determination process) is executed only when the boxes overlap, the process for obtaining the interference position can be performed at high speed.

  As described above, by laying stones so that the stones constituting the ridge lines do not interfere with each other, the ridge lines to be restored are obtained, and the stone wall slope to be restored is defined on the basis of the obtained ridge lines. It is possible to perform a pre-examination on the computer to determine the placement position of each stone so that the surface of the stone constituting the stone matches the stone slope to be restored, so that appropriate stone wall restoration can be performed This makes it possible to reduce rework as much as possible and to reduce the construction cost.

  The program for realizing the function of the processing unit in FIG. 1 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed, thereby executing the stone wall restoration support process. May be performed. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer system” includes a WWW system having a homepage providing environment (or display environment). The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included.

  The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

It is a block diagram which shows the structure of one Embodiment of this invention. It is explanatory drawing which shows the data measurement operation | movement of the measuring device 2 shown in FIG. FIG. 1 is an explanatory diagram showing the table structure of the Ishigaki direction data storage unit 15. FIG. 1 is an explanatory diagram showing a table structure of the stone data storage unit 16. It is explanatory drawing which shows operation | movement of the design slope definition part 17 shown in FIG. It is explanatory drawing which shows the example of a screen display of the process result in the interference confirmation part 19 shown in FIG. It is a flowchart which shows operation | movement of the interference confirmation part 19 shown in FIG. It is explanatory drawing which shows operation | movement of the interference confirmation part 19 shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Support apparatus, 11 ... Control part, 12 ... Input part, 13 ... Display part, 14 ... Shape data input part, 15 ... Ishigaki slope data storage part, 16. ..Stone data storage unit, 17 ... design slope definition unit, 18 ... arrangement position determination unit, 19 ... interference confirmation unit, 2 ... measuring machine, 21 ... 3D shape data measurement Part, 22 ... Ishigaki slope data storage part, 23 ... stone data storage part

Claims (3)

Stone data storage means for storing three-dimensional shape data for each stone constituting the stone wall;
Interference confirmation means for determining the interference state of the stone based on the three-dimensional shape data between at least two stones stored in the stone data storage means;
With reference to the three-dimensional shape data of the stone stored in the stone data storage means, an approximate line that approximates the ridge line to be restored is obtained, and the design slope of the stone wall to be restored is determined based on the approximate line. Means to define;
Means for determining an arrangement position of the stone based on the defined design slope;
A stone wall restoration support device, comprising: means for outputting an arrangement position of the stone determined to be arranged.   The interference confirmation means defines a bounding box in which each of the stones whose interference state is to be confirmed is included, and when the bounding boxes overlap, divides each of the bounding boxes into subdivided boxes. Only when there is an overlap between the subdivided boxes, each stone surface is divided into a plurality of triangular regions, and the intersection state of the triangular regions is determined to obtain the interference state of the stones. The stone wall restoration support device according to claim 2. Stone data storage means for storing three-dimensional shape data for each stone constituting the stone wall, arrangement position determination means for determining the arrangement position of the stone, and at least two stones arranged by the arrangement position determination means An interference confirmation means for obtaining an interference state of a stone based on three-dimensional shape data, and a design method for defining a slope of a stone wall to be restored based on the three-dimensional data of the stone arranged by the arrangement position determining means A stone wall restoration support method for supporting the construction of stone wall restoration using a computer support device provided with a surface definition means,
While confirming the interference state of adjacent stones by the interference confirmation unit, using the arrangement position determination unit, the stones constituting the ridgeline of the stone wall are stacked so as not to interfere with each other;
The design slope defining means refers to the three-dimensional shape data of each stone in a state where the stones constituting the ridge line are stacked, obtains an approximate line that approximates the ridge line to be restored, and based on the approximate line, A slope definition step to define the design slope of the stone wall to be restored,
While confirming the interference state of adjacent stones by the interference confirmation means, the stone position is determined using the arrangement position determining means so that the surface of the stone constituting the slope to be restored coincides with the design slope. An arrangement determining step for determining an arrangement position of
A stone wall restoration support method, wherein the arrangement position determining means includes a position information output step of outputting information for specifying the arrangement position of the stone determined by the arrangement.

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