JP6139720B1 - Design support program and design support apparatus - Google Patents

Abstract

A route object is quickly arranged while avoiding interference. A design support program, when interference occurs in a path object arranged along a path extending from a start point position such as an end of a path object arranged in a design drawing to a cursor position, from the start point position, The presence / absence of interference in a starting point route of a straight line extending in a predetermined starting point direction is determined. In addition, interference means that areas necessary for arrangement of objects overlap in a design drawing in which a plurality of objects are arranged. If interference occurs in the starting point route, an avoidance route for avoiding the interference is displayed on the design image as a rubber (S165). The shape and position of the avoidance path are determined according to the cursor position of the mouse and the bending setting determined by the user. [Selection] Figure 4

Description

  The present invention relates to a design support program and the like.

  In a three-dimensional CAD system that creates a design drawing of a building, it is known to perform routing in which route objects such as ducts and pipes are arranged along a route designated by the user in the design drawing. During routing, interference may occur between a route object newly arranged and an object indicating a device or member already arranged in the design drawing. Interference means that areas necessary for arrangement of objects overlap in a design drawing in which a plurality of objects are arranged. On the other hand, Patent Document 1 describes a method for determining the presence or absence of interference of a three-dimensional CG object representing a building facility in a three-dimensional space.

Japanese Patent No. 4959518

  However, in the method described in Patent Document 1, the presence or absence of interference between objects arranged in a three-dimensional space is determined. For this reason, at the stage where the user designates a route during routing, it is not possible to grasp whether or not interference occurs in the route object arranged along the route. For this reason, it is difficult to perform routing quickly while avoiding interference.

  An object of the present invention is to quickly place a path object while avoiding interference.

  A design support program according to one aspect of the present invention made in view of the above problems is a three-dimensional design drawing of a building, and includes a predetermined object and an object extending along a predetermined path. Create a blueprint where a certain path object is placed. The design support program includes a design image display unit that displays a design image indicating a design drawing, a route setting unit that sets a route in the design drawing based on a designated position designated on the design image by a user, and a design image. Then, the computer is operated as a route display unit indicating the route set by the route setting unit and an arrangement unit that arranges the route object along the route according to an instruction from the user.

  Here, the area on the design drawing that is required when placing an object on the design drawing is defined as a necessary area, and the overlapping of the necessary areas of multiple objects arranged on the design drawing is defined in advance as interference. The part of the object that is the starting point of the path object that extends straight in the starting point direction is set as the starting point position. When a designated position for setting a route extending from the start point position is designated, the route setting unit changes the start point route from the start point position to the end point determined according to the designated position in the start point direction. When the path object is arranged along the path, when interference occurs with the interference object that is the object, the path object and the interference object are arranged along the path by having a bent portion that is a bent section. An avoidance route that is a route that can avoid interference between the two is generated.

  The bent portion has a plurality of straight sections having different directions, and one of these straight sections is an avoidance section extending in a predetermined avoidance direction from the position of the starting point path, and the two straight sections intersect. The intersecting angle is determined in advance. And, the crossing angle and the shape of the bent part is any of a plurality of shapes including a U-shape and an L-shape, and the direction along the avoidance direction is a plurality of directions including the horizontal direction and the vertical direction. The setting for determining which is the bending setting. The route display unit indicates an avoidance route according to the bending setting determined by the user, and the avoidance direction is a direction according to the designated position.

  According to such a configuration, it is determined whether or not interference occurs when a path object is arranged along a start point path extending straight from the start point position to the start point during routing of the path object extending from the start point position. And when interference arises, the avoidance path | route for avoiding interference is shown. For this reason, during routing from the starting point position, it is determined whether or not interference occurs in real time, and an avoidance route is indicated when interference occurs.

  Further, the shape of the bent portion of the avoidance path, the crossing angle, and the direction along the avoidance direction are determined by the bending setting set by the user, and the avoidance direction is determined according to the designated position specified by the user. For this reason, various avoidance routes can be generated, and it is possible to show avoidance routes useful for the user. Further, the user can determine the shape and position of the bent portion by determining the bending setting and the designated position. In particular, by changing the designated position, the position of the bent portion changes. Therefore, it is possible to generate an avoidance route according to the user's intention with a simple operation.

Therefore, the route object can be quickly arranged while avoiding interference.
In the above configuration, when the route setting unit cannot generate the avoidance route according to the bending setting determined by the user, the route display unit avoids the avoidance route according to the bending setting different from that determined by the user. May be shown.

  In the avoidance route according to the bending setting determined by the user, it may be assumed that interference cannot be avoided. However, according to the above configuration, the avoidance route is indicated even in such a case. That is, even if the bending setting determined by the user is inappropriate, the user can grasp the avoidance route. For this reason, a path | route object can be arrange | positioned rapidly, avoiding interference.

  In the above configuration, the route setting unit generates a plurality of avoidance routes having different intersection angles, bent portions, and avoidance directions, and identifies the shortest route having the shortest distance among these avoidance routes. When the route display unit indicates the avoidance route that is the shortest route, the route display unit may further indicate that the avoidance route is the shortest route on the design image.

  According to such a configuration, the user can grasp whether or not the avoidance route indicated by the design support program is the shortest route. For this reason, the user can easily grasp an appropriate avoidance route, and can further quickly arrange a route object while avoiding interference.

  In the above configuration, a path object whose cross-sectional shape orthogonal to the direction of the path in the path object arranged along the path is rectangular or substantially rectangular is defined as a square path object, and the cross-sectional area of the square path object. The aspect ratio adjustment may be to change the shape of the rectangular path object so that the aspect ratio of the cross section changes while maintaining the above. The design support program also adjusts the aspect ratio of the rectangular path object when the interference occurs between the rectangular path object arranged along the avoidance path and an object other than the interference object. By doing so, the computer may be further operated as a determination unit that determines whether or not the interference can be avoided. Then, the arrangement unit may arrange the rectangular path object along the avoidance path for which the determination by the determination unit is affirmative in a state where interference is avoided by adjusting the aspect ratio.

  According to such a configuration, the angular path object can be arranged on the avoidance path while avoiding interference with other objects other than the interference object. For this reason, the avoidance path | route which can arrange | position a square path | route object can be increased. Therefore, the route object can be quickly arranged while avoiding interference.

  Note that a design support apparatus corresponding to a computer operated by the above-described design support program may be configured. Even in such a case, the same effect can be obtained.

FIG. 1A is a block diagram showing the configuration of the design support apparatus (PC) of this embodiment. FIG. 1B is an explanatory diagram of the clearance area of the object. FIGS. 1C and 1D are explanatory diagrams of avoidance paths displayed in rubber on the design image. 2A to 2C are explanatory diagrams of avoidance paths displayed as rubber on the design image. FIGS. 3A to 3C are explanatory diagrams of a rectangular path object arranged on the avoidance path in a state where the aspect ratio is adjusted. It is a flowchart of the interference check process of this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiment of the present invention is not limited to the following embodiment, and can take various forms as long as they belong to the technical scope of the present invention.

[Description of configuration]
FIG. 1A shows a configuration of a known PC 1 that operates as a design support apparatus in the present embodiment. The PC 1 includes a display 10, an HDD 20, a CPU 30, a ROM 40, a RAM 50, an input device 60, and the like.

  The display 10 displays the video generated by the CPU 30 or the like based on the video signal. The input device 60 includes a keyboard, a mouse, and the like, and outputs a signal corresponding to an operation received from the user to the CPU 30. The ROM 40 is a read-only nonvolatile memory, and the HDD 20 is a readable / writable nonvolatile memory. In the ROM 40 and the HDD 20, programs and the like that are read and executed by the CPU 30 are stored in advance. The RAM 50 is a readable / writable volatile memory. When the CPU 30 executes a program stored in the ROM 40 or the HDD 20, the RAM 50 is temporarily stored, or work data is temporarily stored. It is used as a storage area for

  The CPU 30 reads the OS from the HDD 20 and executes it, and executes various programs recorded in the HDD 20 as processes on the OS. In this process, the CPU 30 receives a signal input from the input device 60, generates a video to be displayed on the display 10, and controls reading and writing of data to the RAM 50 and the HDD 20.

  The design support program of this embodiment is installed in the PC 1. The design support program is stored in the HDD 20 and is one of applications that are executed as a process on the OS. By operating the design support program, the PC 1 operates as a design support apparatus.

[Description of operation]
(1) Outline First, the outline of the design support program will be described. In the following description, it is described that the design support program performs processing, but it goes without saying that this means that the CPU 30 of the PC 1 operating according to the design support program performs processing.

  The design support program is, for example, a CAD system for drawing design drawings for constructing various structures (constructions) including buildings such as buildings and houses. The design support program generates a three-dimensional design drawing according to an operation received from the user via the input device 60. Each position on the design drawing is represented by x and y coordinates indicating the position on the horizontal plane and z coordinates indicating the position in the vertical direction. The design support program displays a design image indicating the design drawing being drawn on the display 10 (corresponding to an example of a design image display unit in the claims). The design image is an image showing a design drawing viewed from the direction designated by the user, and may be a perspective view, a plan view, a side view, or the like of the design drawing, for example.

  The design support program arranges an object indicating a device, a member, or the like provided in the building on the design drawing according to an instruction from the user. The object indicates, for example, air-conditioning equipment, equipment installed around the water such as a sink, a wash basin, a bathtub, and a toilet. In addition, a route object indicating a member extending along a route instructed by the user is provided as a kind of object. The path object flows down, for example, a duct that sends air for air conditioning and ventilation, a tubular member for supplying and discharging liquids such as water, a refrigerant pipe that moves refrigerant used in air conditioning equipment, and water. A member that moves a fluid along a predetermined path, such as a spear to be shown. The route object is connected to an object indicating an air conditioner or a device installed around the water.

  The design support program draws a design drawing via the design image displayed on the display 10. Specifically, the route object is routed by a mouse cursor operated by the input device 60 such as a mouse. That is, the design support program sets a route extending on the design drawing based on the mouse cursor on the design image, and shows the route on the design image (corresponding to an example of the route setting unit and the route display unit in the claims). . Then, in accordance with an operation received via the input device 60, a route object is arranged along the route (corresponding to an example of an arrangement unit in the claims). The route has a plurality of straight sections. The path object has a straight line portion and a joint that extend in a straight line. The straight line portion is a portion extending in a straight line in the path object. The joint is a member that connects the straight portions that intersect at a predetermined intersection angle, and is used to change the direction in which the path object extends.

(2) Interference A clearance area is provided around the object arranged in the design drawing. The clearance area is determined corresponding to the object. As an example, in the case of the route object 100, a surface having a predetermined clearance distance C1 with a surface forming a lateral boundary of the arrangement region 101 of the route object 100 is a boundary surface of the clearance region. A region between the boundary surface and the arrangement region 101 is a clearance region 102 (FIG. 1B). The clearance distance C1 is determined according to the type of route object. In the case of the object 110 indicating a device, an area surrounded by a boundary surface that forms a boundary of the arrangement region 111 of the object 110 and a clearance surface that is located outside the boundary surface and is parallel to the boundary surface is defined as a clearance. The region 112 may be used. The distance between each boundary surface and the clearance surface outside the boundary surface is a predetermined clearance distance C2. The clearance distance C2 is determined according to the type of object.

Then, the object is arranged on the design drawing in a state where the following conditions (a) and (b) are satisfied.
(A) No other object is arranged in the arrangement area and clearance area of the object.

(B) The clearance area of the object does not overlap with the clearance areas of other objects.
Hereinafter, a state in which at least one of (a) and (b) is not satisfied is referred to as interference. An area where an object is arranged in the design drawing and a clearance area provided around the arrangement area of the object in the design drawing are set as necessary areas. In other words, interference means that necessary areas of a plurality of objects arranged in the design drawing overlap.

  At the time of routing, the design support program performs an interference check for checking whether a route object arranged along the route interferes with other objects arranged in the design drawing. Here, a case where a route object extending from the starting point position defined in the design drawing is routed will be described as an example. Note that the start point position may be, for example, a connection portion with a path object in an object indicating a device or the like arranged in the design drawing. Further, for example, in the case of newly routing a section extending from the end of the path object arranged in the design drawing, the start point position may be an opening that forms the end. A straight line portion or a joint of a path object extending in the direction of the start point determined corresponding to the start point position can be connected to the start point position. When the end of the path object is the start point position, the start point direction is the direction of the opening of the path object that forms the end. If the end is positioned at the end of the straight line, the direction in which the straight line extends is the starting point direction.

  When routing from the starting point position, a straight path extending from the starting point position to the position of the mouse cursor (cursor position) is shown in the design image. Then, when interference occurs when the route object is arranged along the route, it is determined whether or not interference occurs when the route object is arranged along the starting point route. The start point route is a straight route extending in the start point direction from the start point position to the end point determined according to the cursor position. In the present embodiment, as an example, the end point is located on the cursor surface (the surface including the cursor position and orthogonal to the start point direction). The cursor surface may or may not be displayed on the design image. Here, an object in which interference occurs with a path object arranged along the starting point path is referred to as an interference object. When interference occurs in the starting point path, an avoidance path for avoiding interference with the interference object is shown in the design image.

  The avoidance path has a bent portion that is a bent section for avoiding interference with the interference object. The shape of the bent portion is L-shaped (in other words, a U-shape) or U-shape (in other words, a U-shape). Further, the bent portion has a plurality of straight sections extending in different directions, and these straight sections intersect at a predetermined intersection angle. In addition, since the linear part of the path | route object distribute | arranged to each linear area of a bending part is connected by a joint, the intersection angle in a bending part becomes an intersection angle of the joint distribute | arranged in a bending part. In the present embodiment, the intersection angle (intersection angle of the bent portion) of the joint is 45 ° or 90 ° as an example. Of course, the crossing angle of the joint at the bent portion may be another angle.

  Moreover, the straight section located near the most starting point position in a bending part is described as an avoidance section. The avoidance section has the shortest length in a range where no interference with the interference object occurs. That is, the avoidance path has the shortest length in a range where no interference with the interference object occurs. Moreover, let the direction where an avoidance area extends be an avoidance direction. In other words, the avoidance section extends in the avoidance direction from the position of the starting point route. The avoidance direction is along the vertical direction (z-axis direction) or the horizontal direction (direction along the xy plane). Of course, the avoidance direction is not limited to the vertical direction or the horizontal direction, and may be along various directions. Hereinafter, the direction along the avoidance direction is set as the reference direction.

  In other words, the L-shaped bent portion has an avoidance section and a parallel section that is a straight section. The parallel section has one end connected to the end of the avoidance section and the other end connected to the cursor surface, and is parallel to the starting point path. The bent portion is formed in an L shape by a plurality of straight sections including an avoidance section and a parallel section.

  On the other hand, the U-shaped bent portion has an avoidance section, a parallel section that is a straight section, and a return section. The parallel section has one end connected to the end of the avoidance section and the other end connected to one end of the return section, and is parallel to the starting point path. In the return section, the other end is located on the starting point route. The bent portion is formed in a U shape by an avoidance section, a parallel section, and a return section. And the avoidance path | route which has a U-shaped bending part further has the terminal area which is a linear area which connects a bending part and a cursor surface. The end section is arranged on the starting point path, and one end of the end section is connected to the other end of the return section, and the other end of the end section is connected to the cursor surface. However, when the intersection angle is 90 °, the return section is parallel to the avoidance section. In this case, the return section may be arranged on the cursor surface depending on the positional relationship between the interference object and the cursor surface. . In this case, the avoidance path has no end section. When the crossing angle is 45 °, the other end of the return section may be placed on the cursor surface depending on the positional relationship between the interference object and the cursor surface. In this case, the avoidance path has no end section.

  And the setting which determines the shape of a bending part, a crossing angle, and a reference direction is described as bending setting. The design support program determines the bending setting according to the operation received from the user via the input device 60. In the bending setting, the length of the bending portion (the length of the avoiding route) can be shortened by setting the shape of the bent portion to an L shape and setting the crossing angle to 45 °. Further, the avoidance direction is determined on one of the upper, lower, left and right sides of the starting point path according to the cursor position and the reference direction. For this reason, there are a maximum of 16 patterns in the avoidance route. When interference of the starting point path occurs, an avoidance path corresponding to the bending setting and the cursor position is shown in the design image.

  In addition, although the avoidance path | route cannot be produced | generated if the shape of a bending part is U-shaped, the case where an avoidance path | route can be produced | generated if it changes into a U shape instead of a U shape is assumed. In such a case, the shape of the bent portion may be V-shaped instead of U-shaped. Here, the V-shaped bent portion has the avoidance section described above and a return section that is a straight section. In other words, the V-shaped bent portion is obtained by removing the parallel section from the U-shaped bent portion. One end of the return section is connected to the end of the avoidance section, and the other end is located on the starting point path. And the avoidance path | route which has a V-shaped bending part further has the terminal area similar to the avoidance path | route which has a U-shaped bending part. That is, the V-shaped bent portion is formed in a V shape by the avoidance section and the return section. As a specific example, when the crossing angle is 45 ° and the distance between the interference object and the cursor surface is short, the end section is secured when the parallel section is secured by making the shape of the bent portion U-shaped. It may not be possible. In such a case, the shape of the bent portion may be V-shaped instead of U-shaped.

  Next, a specific example of the avoidance route will be described. The AD avoidance paths 210, 220, 230, and 240 are routed when a route object extending from the start point position 200 is routed by the mouse cursor 202 via a design image showing a plan view of the design drawing along the xy plane. It is generated (FIGS. 1C and 1D, FIGS. 2A to 2C). These avoidance paths extend from the start position 200 to the cursor surface 203 while avoiding interference with the interference object 204. Also, the bend settings of these avoidance paths are different, and these are examples of four of the 16 avoidance paths that can be generated during the routing. In the direction along each of the x, y, and z coordinate axes, the side on which the value indicated by the coordinate axis increases is described as the positive side, and the side on which the value indicated by the coordinate axis decreases is described as the negative side.

In the A avoidance path 210, the bent portions 210a, 210b, and 210c are U-shaped, the crossing angle is 45 °, and the reference direction is the horizontal direction (FIG. 1C).
In the B avoidance path 220, the bent portions 220a and 220b are L-shaped, the crossing angle is 45 °, and the reference direction is the horizontal direction (FIG. 1D).

In the C avoidance path 230, the bent portions 230a and 230b are L-shaped, the crossing angle is 90 °, and the reference direction is the horizontal direction (FIG. 2A).
Further, in the D avoidance path 240, the bent portions 240a and 240b are L-shaped, the crossing angle is 90 °, and the reference direction is the vertical direction (FIGS. 2B and 2C).

  Further, the reference direction of the A to C avoidance paths 210 to 230 is the horizontal direction. For this reason, the avoidance direction of these avoidance paths (the direction in which the avoidance sections 210a, 220a, and 230a are directed) is the direction from the start path to the cursor position at the time of interference check. Specifically, the position of the mouse cursor 202 at the time of the interference check is the positive side in the y-axis direction when viewed from the start point path 201. For this reason, the avoidance direction of these avoidance paths is on the positive side in the y-axis direction. When the cursor position at the time of interference check is on the negative side in the y-axis direction when viewed from the starting point path 201, the avoidance direction is on the negative side in the y-axis direction.

  In the D avoidance path 240, the reference direction is the vertical direction, and the position of the mouse cursor 202 at the time of interference check is on the positive side in the y-axis direction when viewed from the start point path 201. Therefore, the avoidance direction is on the positive side in the z-axis direction (FIGS. 2B and 2C). When the cursor position at the time of interference check is on the negative side in the y-axis direction when viewed from the starting point path 201, the avoidance direction is on the negative side in the z-axis direction. Of course, on the contrary, when the cursor position at the time of interference check is on the positive side in the y-axis direction when viewed from the start point path 201, the avoidance direction is set to the negative side in the z-axis direction, and the cursor position is set to the start point path 201. When viewed from the negative side in the y-axis direction, the avoidance direction may be the positive side in the z-axis direction.

  Here, the distance between the starting point path and the parallel sections 210b, 220b, 230b, and 240b is defined as an avoidance length. The avoidance sections 210a, 220a, 230a, and 240a in the A to D avoidance paths 210 to 240 are within a range in which interference between the path objects 211, 221, 231, and 241 arranged in each avoidance path and the interference object 204 does not occur. Set to the shortest length. In other words, the avoidance length 205 of the A to C avoidance paths 210 to 230 and the avoidance length 206 of the D avoidance path 240 having the same avoidance direction are within a range in which interference with the interference object 204 does not occur. Set to the shortest length. For this reason, the clearance areas on the sides of the straight portions 211 a, 221 a, 231 a, and 241 a arranged in the parallel sections of the A to D avoidance paths are adjacent to the clearance area of the interference object 204.

  The avoidance length is rounded up according to the setting by the user. Specifically, for example, when the avoidance length is set in units of 50 mm, the avoidance length is the shortest length in a range where interference does not occur among lengths of 50 mm × N (N is a positive integer). Set to Then, the length of the avoidance section is set so that the avoidance length becomes the length. Of course, as a result of rounding up the avoidance length, the clearance area of the path object placed on the avoidance path may not be adjacent to the clearance area of the interference object.

  Further, the avoidance path may be shown in the design image as follows. That is, for example, a path object along the A to D avoidance paths 210 to 240 may be rubber-displayed (provisionally displayed) on the design image. Specifically, for example, the route object may be displayed in a different color from the arranged route object, or may be displayed in a lighter color or a thinner line than the arranged route object. Alternatively, the arranged route object may be displayed with a solid line, and the route object to be displayed in rubber may be displayed with a dotted line. Further, for example, one line indicating the avoidance route may be displayed on the design image.

  In addition, the avoidance path information 206 is displayed on the design image along with the avoidance path. Specifically, the avoidance length and the route length may be displayed as the avoidance route information 206. In addition, among the generated avoidance routes, the avoidance route having the shortest route length is set as the shortest route. When the avoidance route is the shortest route, characters of the shortest route may be displayed as the information 206 of the avoidance route. Of course, the present invention is not limited to this. For example, the avoidance route that is the shortest route may be indicated in a different manner from other avoidance routes, so that the user can be notified that the avoidance route indicated in the design image is the shortest route. . In the present embodiment, the B avoidance route 220 is the shortest route. Therefore, the shortest path character is displayed in the information 206 of the B avoidance path 220.

(3) Re-interference When a path object is arranged along an avoidance path, interference may occur between the path object and another object other than the interference object. Hereinafter, such interference is referred to as re-interference.

  Here, a cross section orthogonal to the path in the path object is simply referred to as a cross section. A route object such as a duct has a rectangular (rectangular or square) or substantially rectangular cross-sectional shape. Hereinafter, a path object having a rectangular or substantially rectangular cross section is referred to as a square path object. Further, the aspect ratio adjustment is to change the shape of the square path object so that the aspect ratio of the cross section changes while maintaining the cross-sectional area of the square path object. The aspect ratio is a ratio between one side in the cross section and the other side orthogonal to the side.

  When re-interference occurs in the avoidance path of the square path object, the design support program re-adjusts the aspect ratio by adjusting the aspect ratio of all or part of the straight line parts included in the square path object arranged in the avoidance path. It is determined whether or not interference will occur (re-interference determination). If an affirmative determination is made, the design support program adjusts the aspect ratio of all or part of the straight line portions included in the rectangular path object so that no re-interference occurs, and the avoidance path The rectangular path object is arranged in (corresponding to an example of the arrangement unit in the claims). It should be noted that the range of the aspect ratio in the square path object may be determined in advance. The range may be, for example, 1: 8 to 8: 1 (in other words, the range of aspect ratio values is 1/8 to 8). When the aspect ratio adjustment is performed and the rectangular path object is arranged, if the aspect ratio is out of the range, a warning display may be performed. In such a case, the square path object may not be arranged.

  FIGS. 3A to 3C show an example of the angular path object 320 in which the aspect ratio adjustment of the straight portions 322 and 323 is performed. The avoidance path 310 in which the square path object 320 is arranged is generated by routing with the end portion of the square path object 300 previously arranged in the design drawing as the start point position 301. In order to avoid interference with the interference object 302 by the interference check during the routing, an avoidance path 310 having an L-shaped bent portion is generated. However, when the square path object is arranged along the avoidance path 310, re-interference occurs. Specifically, re-interference occurs between the straight line portions 322 and 323 arranged along the avoidance section 311 and the parallel section 312 of the bent portion and the re-interference object 303. However, re-interference can be avoided by adjusting the aspect ratio of the straight portions 322 and 323. For this reason, the angular path object 320 is arranged along the avoidance path 310 in a state where the aspect ratio adjustment of the straight portions 322 and 323 is performed.

  Note that the joint connecting the straight portions 322 and 323 has a shape corresponding to the aspect ratio of the straight portion. In particular, the joint 321 that connects the straight line portion connected to the starting point position 301 in the square path object 320 and the straight line portion 322 arranged in the avoidance path is configured to connect the straight line portions having different aspect ratios.

  Further, in FIG. 3, the aspect ratios of the two straight line portions having the aspect ratio adjusted are the same. However, the present invention is not limited to this, and there may be a case where the aspect ratios of the plurality of straight line portions whose aspect ratios are adjusted are not the same. It is also assumed that re-interference occurs at the joint included in the square path object. In such a case, re-interference determination is performed for each linear portion connected to the joint, and it is determined whether or not re-interference can be avoided by adjusting the aspect ratio for both or one of these linear portions. If an affirmative determination is obtained, the rectangular path object is arranged in a state where the re-interference is avoided by adjusting the aspect ratio with respect to both or one of these linear portions. Further, when the bent portion is U-shaped, the re-interference determination and the aspect ratio adjustment are performed in the same manner.

(4) Interference Check Process Next, an interference check process for performing an interference check between the path object and another object already arranged in the design drawing when routing the path object will be described (FIG. 4). This process is started when a route from the starting point position to the cursor position is set.

  In S100, the design support program performs an interference check on the path object arranged along the path extending from the start position to the cursor position. If interference occurs (S105: Yes), the process proceeds to S110. On the other hand, when interference does not occur (S105: No), this process ends. Thereafter, routing from the starting point position is performed based on the cursor position.

  In S110, the design support program sets a cursor surface corresponding to the start point position and the cursor position, and sets a start point path extending from the start point position toward the end point on the cursor surface in the start point direction. Then, an interference check is performed on the route object arranged along the starting point route (S115). Thereafter, when the interference of the path object occurs (S120: Yes), the design support program proceeds to S125, and when the interference does not occur (S120: No), the design support program proceeds to S160.

  In S125, the design support program generates an avoidance route for avoiding interference of the start point route. At this time, all of the avoidance paths that do not cause interference with the interference object, except for the avoidance path that causes the above-described re-interference, are generated. Then, when such an avoidance route is generated (S130: Yes), the process proceeds to S145, and when such an avoidance route cannot be generated (S130: No), the process proceeds to S135.

  In S135, the design support program determines whether the route object to be routed is a square route object. If an affirmative determination is obtained (S135: Yes), the process proceeds to S140, and if a negative determination is obtained (S135: No), this process ends.

  In S140, the design support program can avoid the interference with the interference object, but performs the above-described re-interference determination for the avoidance path where the re-interference occurs. If an affirmative determination is obtained (S140: Yes), all avoidance paths that can avoid interference with the interference object and that can avoid re-interference by adjusting the aspect ratio are generated. , The process proceeds to S145. On the other hand, when a negative determination is obtained (S140: No), this process ends.

  In S145, the design support program calculates the route length and the avoidance length of the avoidance route generated in S125 or S140, and specifies the shortest route from the avoidance routes. Then, the design support program selects one of the avoidance paths according to the bending setting (user setting) determined by the user, and further selects one avoidance path corresponding to the cursor position from the selected avoidance paths. Select (S150). If an avoidance path corresponding to the user setting and the cursor position is not generated, but another avoidance path having a bending setting different from the avoidance path is generated, the design support program executes another avoidance path. One of them is selected. Specifically, for example, an avoidance path corresponding to the cursor position, and an avoidance path in which the shape of the bent portion or the intersection angle is different from the user setting may be selected. Then, when such an avoidance route is not generated, an avoidance route corresponding to the cursor position and having a reference direction different from the user setting may be selected.

  In subsequent S155, the design support program displays the route length and the avoidance length of the selected avoidance route on the design image, and displays whether or not the avoidance route is the shortest route on the design image, and proceeds to S165. .

On the other hand, in S160 to which the process proceeds when there is no interference of the start point path, the design support program selects the start point path and proceeds to S165.
In S165, the design support program indicates the avoidance path on the design image by, for example, a rubber display of the path object arranged along the avoidance path, and ends this processing. When indicating an avoidance path that can avoid re-interference by adjusting the aspect ratio, it is preferable to perform rubber display or the like of a rectangular path object in a state where re-interference is avoided by adjusting the aspect ratio.

  Thereafter, the design support program may arrange the path object along the avoidance path indicated in the design image in accordance with an instruction from the user. Of course, when an avoidance path capable of avoiding re-interference by adjusting the aspect ratio is shown, a rectangular path object in which re-interference is avoided by adjusting the aspect ratio may be arranged along the avoidance path. .

[effect]
According to the design support program of the present embodiment, it is determined whether or not interference occurs when a path object is arranged along a start point path extending straight from the start point position to the start point during routing of the path object extending from the start point position. Is done. And when interference arises, the avoidance path | route for avoiding interference is shown. For this reason, during routing from the starting point position, it is determined whether or not interference occurs in real time, and an avoidance route is indicated when interference occurs.

  Further, the length of the avoidance section in the avoidance route is the shortest in a range where interference can be avoided. For this reason, the user can grasp a short avoidance route. Thereby, the length of a path | route object can be suppressed and the material cost at the time of constructing a building based on a design drawing can be suppressed.

  Further, the shape of the bent portion of the avoidance path, the crossing angle, and the direction along the avoidance direction are determined by the bending setting set by the user, and the avoidance direction is determined according to the designated position specified by the user. For this reason, various avoidance routes can be generated, and it is possible to show avoidance routes useful for the user. Further, the user can determine the shape and position of the bent portion by determining the bending setting and the designated position. In particular, by changing the designated position, the position of the bent portion changes. Therefore, it is possible to generate an avoidance route according to the user's intention with a simple operation.

Therefore, the route object can be quickly arranged while avoiding interference.
[Other Embodiments]
(1) In the design support program of the present embodiment, three items are provided as the bend setting: the shape of the bent portion of the avoidance path, the intersection angle, and the reference direction, and the user determines these three items. Can do. However, the user may determine one or two of these items. Even in such a case, the same effect can be obtained.

  (2) In the design support program of this embodiment, depending on the bending setting, the shape of the bent portion is either L-shaped or U-shaped, or L-shaped, U-shaped, or V-shaped. It is determined to one of them. However, the present invention is not limited to this, and the shape of the bent portion may be set to a shape different from these by bending setting. Specifically, the shape of the bent portion may be set to any one of a plurality of shapes including, for example, an L shape and a U shape by bending setting, or a U shape or an L shape. And a plurality of shapes including a V shape.

  In the design support program of the present embodiment, the reference direction of the bent portion is set to one of the vertical direction and the horizontal direction by the bending setting. However, the present invention is not limited to this, and the reference direction may be determined in a direction other than the vertical direction and the horizontal direction by bending setting. Specifically, the reference direction may be set to any one of a plurality of directions including a vertical direction and a horizontal direction by bending setting.

  (3) In the design support program of the present embodiment, the avoidance section in the bent portion has the shortest length in a range where interference with the interference object does not occur. However, the present invention is not limited to this, and the length of the avoidance section may be adjusted as appropriate.

[Correspondence with Claims]
The correspondence between the terms used in the description of the above embodiment and the terms used in the description of the claims is shown.

  The cursor position corresponds to an example of a designated position. Further, S105 to S125 and S145 of the interference check process correspond to an example of a route setting unit, S140 corresponds to an example of a determination unit, and S145 to S155 and S165 correspond to an example of a route display unit.

  DESCRIPTION OF SYMBOLS 1 ... PC, 10 ... Display, 20 ... HDD, 30 ... CPU, 40 ... ROM, 50 ... RAM, 60 ... Input device.

Claims (5)

A design support program for creating a three-dimensional design drawing for a building, in which a predetermined object and a route object that is the object extending along a predetermined route are arranged There,
The design support program is:
A design image display unit for displaying a design image showing the design drawing;
A route setting unit configured to set the route in the design drawing based on a designated position designated on the design image by a user;
A route display unit indicating the route set by the route setting unit via the design image;
In response to an instruction from the user, the computer is operated as an arrangement unit that arranges the route object along the route.
An area on the design drawing that is required when the object is arranged in the design drawing is a necessary region, and the necessary regions of the plurality of objects arranged in the design drawing overlap with each other as interference,
The part of the object that is the starting point of the path object extending in a straight line in a predetermined starting point direction is set as a starting point position,
When the designated position for setting the route extending from the start point position is designated, the route setting unit, from the start point position toward the start point, to an end point determined according to the designated position When the route object is arranged along the starting point route that is the route that extends, when the interference occurs with the interference object that is the object, the route object has a bent portion that is a bent section. Generating an avoidance path that is the path that can avoid the interference between the path object and the interference object arranged along the path;
The bent portion has a plurality of straight sections having different directions, and one of the straight sections is an avoidance section extending in a predetermined avoidance direction from the position of the starting point path, and the two straight lines The intersection angle at which the sections intersect is predetermined,
Of the plurality of directions in which the crossing angle and the shape of the bent portion are a plurality of shapes including a U shape and an L shape, and the direction along the avoidance direction includes a horizontal direction and a vertical direction The setting that determines whether or not is a bending setting,
The route display unit indicates the avoidance route according to the bend setting determined by a user, and the avoidance direction is a direction according to the designated position;
Design support program characterized by The design support program according to claim 1,
The route display unit, when the route setting unit cannot generate the avoidance route according to the bending setting determined by the user, the avoidance route according to the bending setting different from that determined by the user Showing,
Design support program characterized by In the design support program according to claim 1 or 2,
The route setting unit generates a plurality of the avoidance routes having different intersection angles, shapes of the bent portions, and the avoidance directions, and specifies the shortest route having the shortest distance among these avoidance routes. ,
When the route display unit indicates the avoidance route that is the shortest route, the route display unit further indicates to the design image that the avoidance route is the shortest route;
Design support program characterized by In the design support program according to any one of claims 1 to 3,
The path object whose cross-sectional shape orthogonal to the direction of the path in the path object arranged along the path is a rectangle or a substantially rectangular is a square path object,
Changing the shape of the square path object so that the aspect ratio of the cross section changes while maintaining the area of the cross section of the square path object is an aspect ratio adjustment.
When the interference occurs between the angular path object arranged along the avoidance path and the other objects other than the interference object, the aspect ratio adjustment is performed on the angular path object. As a determination unit that determines whether or not the interference can be avoided, the computer is further operated,
The arrangement unit arranges the angular path object along the avoidance path for which a positive determination is made by the determination unit in a state where the interference is avoided by the aspect ratio adjustment;
Design support program characterized by A design support device for creating a three-dimensional design drawing for a building, in which a predetermined object and a route object that is the object extending along a predetermined route are arranged There,
The design support apparatus includes:
A design image display unit for displaying a design image showing the design drawing;
A route setting unit configured to set the route in the design drawing based on a designated position designated on the design image by a user;
A route display unit indicating the route set by the route setting unit via the design image;
An arrangement unit that arranges the route object along the route according to an instruction from a user;
An area on the design drawing that is required when the object is arranged in the design drawing is a necessary region, and the necessary regions of the plurality of objects arranged in the design drawing overlap with each other as interference,
The part of the object that is the starting point of the path object extending in a straight line in a predetermined starting point direction is set as a starting point position,
When the designated position for setting the route extending from the start point position is designated, the route setting unit, from the start point position toward the start point, to an end point determined according to the designated position When the route object is arranged along the starting point route that is the route that extends, when the interference occurs with the interference object that is the object, the route object has a bent portion that is a bent section. Generating an avoidance path that is the path that can avoid the interference between the path object and the interference object arranged along the path;
The bent portion has a plurality of straight sections having different directions, and one of the straight sections is an avoidance section extending in a predetermined avoidance direction from the position of the starting point path, and the two straight lines The intersection angle at which the sections intersect is predetermined,
Of the plurality of directions in which the crossing angle and the shape of the bent portion are a plurality of shapes including a U shape and an L shape, and the direction along the avoidance direction includes a horizontal direction and a vertical direction The setting that determines whether or not is a bending setting,
The route display unit indicates the avoidance route according to the bend setting determined by a user, and the avoidance direction is a direction according to the designated position;
Design support device characterized by

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