JP5279149B2 - CAD data creation device, CAD data creation method and computer program - Google Patents

Description

  The present invention relates to a CAD data creation device for creating CAD (Computer Aided Design) data for construction, a CAD data creation method, and a computer program for causing a computer to execute the method.

  CAD is rapidly spreading in the construction field, and recently, CAD devices having various functions have been proposed. In particular, in the construction field, there is a situation in which correction of a drawing is performed at a high frequency, and therefore, many improvements have been made focusing on the correction function of the drawing.

  For example, Patent Document 1 discloses an automatic floor plan creation processing apparatus that can automatically diagnose a basic structure related to a floor plan of a building and correct or change the floor plan according to the result. According to this device, problems can be solved early in the basic design stage, and floor plans that are almost free of problems can be created and passed to the structural design stage. Can be minimized.

  Also, in Patent Document 2, after creating a chassis base diagram by appending size and height information of each member on the structural plan, the geometric dimensions on the drawing of each member are expressed as numerical values in the member list. In other words, a CAD system having a function of correcting a chassis base diagram created in order to correspond to the above is disclosed. According to this CAD system, it is possible to automatically achieve consistency between drawings.

JP 2005-316864 A JP 2004-139241 A

  Although it is desirable to automatically perform the drawing correction work as in the prior art described above, it is extremely difficult to perform all the correction work automatically, and there are many cases where it is actually manual. Therefore, it is desirable to enhance functions that support manual drawing correction work.

  The present invention has been made in view of such circumstances, and the main purpose of the present invention is to easily confirm a portion that needs to be corrected by using data in which each line segment in the drawing is associated with a member. The present invention provides a CAD data creation device, a CAD data creation method, and a computer program for causing a computer to execute the method.

In order to solve the above-described problem, a CAD data creation device according to an aspect of the present invention includes a line segment input receiving unit that receives an input of one line segment that constitutes a part of a member of a building, and the line segment. Member identification information acquisition means for acquiring member identification information for identifying a member constituted by one line segment whose input is received by the input reception means, member identification information acquired by the member identification information acquisition means, and the one Line segments associated with line segments and including line segment-member data including the start point coordinates and end point coordinates of the line segments-member data storage unit, and line segments stored in the line segment-member data storage unit -Referring to the member data, a plurality of line segments constituting the same member, a first line segment specifying means for specifying the start point coordinates and the end point coordinates of the plurality of line segments, and the first line segment specifying means Multiple Based on the start point coordinates and end point coordinates of the line segment, the closed region and the closed region determining means for determining whether the closed region is formed by a plurality of line segments the specified lead, by the closed region determining means Output means for outputting information indicating that the input of the member is not correct when it is determined that is not formed.

  The CAD data creation apparatus according to this aspect further includes a line segment generation unit that generates a line segment necessary for forming the closed region when the closed region determination unit determines that the closed region is not formed. The line segment-member data storage unit stores the line segment-member data in which the member identification information for identifying the member formed by the plurality of identified line segments is associated with the line segment generated by the line segment generation unit. It may be configured to memorize.

  Further, the CAD data creation device of this aspect refers to the line segment selection receiving means for receiving the selection of the line segment in the CAD data, and the line segment-member data stored in the line segment-member data storage unit, You may further provide the member identification information output means which outputs the member identification information matched with the line segment by which the selection was received by the said line segment selection reception means.

  In addition, when the CAD data creation apparatus of this aspect receives an instruction to move the position of a line segment, the movement instruction is referred to by referring to the line segment-member name data stored in the line segment-member data storage unit. The position of the line segment specified by the second line segment specifying means together with the position of the line segment related to the movement instruction, the second line segment specifying means for specifying the line segment constituting the same member as the line segment related to And a line segment moving means for moving.

  In addition, when the CAD data creation device of this aspect receives an instruction to delete the position of a line segment, the deletion instruction is referred to by referring to the line segment-member name data stored in the line segment-member data storage unit. And a line segment for deleting the line segment specified by the third line segment specifying means and the third line segment specifying means for specifying the line segment constituting the same member as the line segment related to And deleting means.

  Further, the CAD data creating apparatus of this aspect refers to the line segment-member data stored in the line segment-member data storage unit, and fourth line segment specifying means for specifying the line segment constituting the same member And the line segment-member data stored in the line segment-member data storage unit, and the member identification information associated with the line segment specified by the fourth line segment specifying means is arbitrarily set in the CAD data. It may further comprise a member identification information writing means for writing to the layer.

One CAD data generating method of the aspect of the invention, a computer including a storage unit, a step of accepting an input of one line which constitutes a part of a member of a building, one of the line segments, the input of which is accepted A step of acquiring member identification information for identifying a member to be configured, a step of storing line segment-member data in which the acquired member identification information is associated with the one line segment in the storage unit, and one from the user When selection of a line segment is accepted, a plurality of line segments constituting the same member as the selected one line segment with reference to the line segment-member data stored in the line segment-member data storage unit A step of determining whether a closed region is formed by the plurality of specified line segments and the selected one line segment, and a determination that the closed region is not formed, Enter parts And a step of outputting information indicating that it is not correct.

The computer program according to one aspect of the present invention is a computer program including a storage unit, a line segment input receiving unit that receives an input of one line segment that forms part of a member of a building, and the line segment input reception Member identification information acquisition means for acquiring member identification information for identifying a member constituted by one line segment received by the means; member identification information acquired by the member identification information acquisition means; and the one line segment. And the line segment-member stored in the line segment-member data storage unit when the selection of one line segment is accepted from the user and the means for storing the line segment-member data in the storage unit Referring to the data, a line segment specifying means for specifying a plurality of line segments that constitute a plurality of line segments that constitute the member of the same and the line segment of the one selected, a plurality of which are specified by the line segment specifying means A closed region determining means for determining the frequency and the selected one of the line segments whether closed region is formed, when a closed area is determined not to be formed by the closed area determining means, members Is to function as an output means for outputting information indicating that the input is not correct.

  According to the CAD data creation apparatus, CAD data creation method, and computer program according to the present invention, it is possible to easily check whether or not there is a portion that needs to be corrected in the drawing.

1 is a block diagram showing a configuration of a CAD data creation device according to an embodiment of the present invention. It is a figure which shows an example of the layout of a line segment information database. The flowchart which shows the process sequence of the line segment information generation process which a CAD data creation apparatus performs. The flowchart which shows the process sequence of the member display process which a CAD data creation apparatus performs. The figure which shows the example of a screen displayed on a display in the case of a member display process. The flowchart which shows the process sequence of the member verification process which a CAD data creation apparatus performs. The figure which shows the example of a screen in case error information is displayed on a display in a member verification process. The flowchart which shows the process sequence in case CAD data creation apparatus produces | generates a line segment. The flowchart which shows the process sequence of the line segment movement process which a CAD data creation apparatus performs. The flowchart which shows the process sequence of the line segment deletion process which a CAD data creation apparatus performs. The flowchart which shows the process sequence of the layer addition process which a CAD data creation apparatus performs. The figure which shows an example of the screen displayed on a display in the case of a layer addition process. The figure which shows the other example of the screen displayed on a display in the case of a layer addition process.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[Configuration of CAD data creation device]
FIG. 1 is a block diagram showing a configuration of a CAD data creation apparatus according to an embodiment of the present invention. As shown in FIG. 1, a computer (CAD data creation device) 100 includes a main body 1, an input unit 2, and a display 3. The main body 1 includes a CPU 11, a ROM 12, a RAM 13, a hard disk 14, a data reading device 15, an input / output interface (I / F) 16, and an image output interface (I / F) 17. The hard disk 14, the data reading device 15, the input / output I / F 16 and the image output I / F 17 are connected by a bus BS.

  The CPU 11 can execute a computer program loaded in the RAM 13. When the CPU 11 executes a CAD data creation program 14A described later, the computer 100 functions as a CAD data creation device according to the present embodiment.

  The ROM 12 is configured by a mask ROM, PROM, EPROM (Erasable PROM), EEPROM (Electrically Erasable PROM), or the like, and stores a computer program executed by the CPU 11 and data used for the execution. Yes.

  The RAM 13 is configured by SRAM, DRAM, or the like. The RAM 13 is used for reading out the CAD data creation program 14A stored in the hard disk 14. Further, it is also used as a work area for the CPU 11 when the CPU 11 executes various computer programs.

  In the hard disk 14, various computer programs to be executed by the CPU 11, such as an operating system and application programs, and data used for executing the computer programs are installed in advance. A CAD data creation program 14A, which will be described later, is also installed in the hard disk 14.

  The hard disk 14 also stores a drawing database (DB) 14B that stores drawing data in DXF format, DWG format, JWC format, and the like. The drawing data stored in this drawing DB 14B is CAD drawing data of various plan views such as floor plan, ceiling plan and detailed plan view, CAD drawing data such as various sectional views and elevation views, and the like. is there.

  In addition to the drawing DB 14B, the hard disk 14 stores a line segment information database (DB) 14C in which the correspondence between each line segment in the drawing data and members is shown. Details of the line segment information DB 14C will be described later.

  The hard disk 14 is installed with a multitask operating system such as Windows (registered trademark) manufactured and sold by Microsoft Corporation. In the following description, it is assumed that the CAD data creation program 14A according to the present embodiment operates on the operating system.

  The data reading device 15 is configured by a flexible disk drive, a CD-ROM drive, a DVD-ROM drive, or the like, and can read a computer program or data recorded on the portable recording medium 18. The CAD data creation program 14A recorded on the portable recording medium 18 is read by the data reading device 15 and installed in the hard disk 14, so that the computer 100 can function as a CAD data creation device. The CAD data creation program 14A is not only provided by the portable recording medium 18 as described above, but also from an external device that is communicably connected to the computer 100 via a telecommunication line (whether wired or wireless). It is also possible to provide the information through the telecommunications line. For example, a CAD data creation program 14A is stored in the hard disk of a server computer on the Internet. The computer 100 accesses the server computer, downloads the CAD data creation program 14A, and installs it on the hard disk 14. It is also possible.

  The input / output interface 16 is, for example, a serial interface such as USB, IEEE1394, or RS-232C, a parallel interface such as SCSI, IDE, or IEEE1284, an analog interface including a D / A converter, an A / D converter, and the like. It is configured. An input unit 2 including a keyboard and a mouse is connected to the input / output interface 16, and the user can input data to the computer 100 by operating the input unit 2.

  The image output interface 17 is connected to a display 3 constituted by an LCD or a CRT, and a video signal or the like corresponding to image data is given to the display 3 from the CPU 11 via the image output interface 17. The display 3 displays an image (screen) according to a video signal or the like input from the CPU 11.

Details of the line segment information DB 14C will be described below.
FIG. 2 is a diagram illustrating an example of the layout of the line segment information DB 14C. As shown in FIG. 2, the line segment information DB 14C stores a start point field 141 in which the start point coordinates of the line segment are stored, an end point field 142 in which the end point coordinates of the line segment are stored, and member names of members constituting the line segment. Member name field 143, a member ID field 144 storing a member ID for specifying the member, a layer field 145 storing a layer ID for specifying a layer (layer) where the line segment exists, a line A line type field 146 for storing information indicating the line type of the minute, a line width field 147 for storing information indicating the line width (thickness) of the line segment, and information indicating the color of the line segment are stored. It has a color field 148.

  Information stored in the line segment information DB 14C is generated by a line segment information generation process described later, and is registered in the line segment information DB 14C. Note that the information stored in the line segment information DB 14C may be stored in the drawing DB 14B. That is, the drawing DB 14B and the line segment information DB 14C may be integrated.

[Operation of CAD data creation device]
Next, the operation of the CAD data creation device 100 configured as described above will be described with reference to a flowchart and the like.
The CAD data creation device 100 mainly includes (1) line segment information generation processing for generating line segment information, (2) member display processing for displaying the member name and member ID, and (3) the member is correct. A member verification process for verifying whether or not it has been created; (4) a line segment movement process for moving the position of the line segment; (5) a line segment deletion process for deleting the line segment; and (6 ) Each process of the layer addition process for creating a layer in which the member name and the member ID are written is executed. Details of each of these processes will be described below.

(1) Line segment information generation process The line segment information generation process is a process executed when the user creates various CAD data such as a floor plan, a ceiling plan, and a detailed plan view. In the following, it is assumed that an input to the CAD data creation device 100 is performed by the user operating the input unit 2.

  FIG. 3 is a flowchart illustrating a processing procedure of line segment information generation processing executed by the CAD data creation device 100. As shown in FIG. 3, the CAD data creation device 100 first receives from the user an instruction as to which layer a line segment is to be written to, that is, a layer selection (S101). Next, the CAD data creation apparatus 100 receives an input of a line segment (S102). In this case, the user may receive the input of the line segment by numerically inputting the start point coordinate and the end point coordinate, and the user inputs the line segment at a desired position by operating the mouse or the like. It may be accepted. Furthermore, for example, a line segment may be input by using a numerical value included in an output result of a computer program that performs structural calculation of a building.

  Next, the CAD data creation device 100 receives an input of a member name that is a name of a building member such as a pillar, a roof, or a slab (S103). In this case, the user may input a member name for each line segment, or a preset member name may be automatically input. The automatic input here has, for example, a function that allows the CAD data creation apparatus 100 to set in advance which member's line segment is to be written before writing the line segment. As long as there is no change (change of a member), the aspect which the member name of the set member concerned is inputted into CAD data creation device 100 can be considered.

  When receiving the input of the member name, the CAD data creating apparatus 100 generates the member ID of the member related to the member name (S104). Although this process can have various modes, for example, it is performed by receiving a member ID from a user and associating it with a written line segment. In this case, the member ID may be received from the user for each line segment, or may be received from the user after all the line segments constituting one member are written. In addition, the CAD data creation device 100 has a function that can set in advance which member's line segment is to be written, as long as the setting is not changed. It may be performed by associating the same predetermined member ID.

  Next, the CAD data creation device 100 accepts selection of the line type, line width, and color of the line segment (S105). Note that if it is possible to preset the line segment attributes such as line type, line width, and color, this step S105 may be omitted.

  The CAD data creating apparatus 100 generates line segment information using each information received or generated as described above (S106), and registers the line segment information in the line segment information DB 14C (S107). .

  As a result of the above processing, line segment information in which line segments and member names are associated with each other is generated for each line segment. The subsequent processes are executed based on the line segment information.

  In addition to writing the line segment as described above, CAD drawing data is created by a known method. The drawing data created in this way is stored in the drawing DB 14B.

(2) Member Display Process FIG. 4 is a flowchart showing the procedure of the member display process executed by the CAD data creation apparatus 100. As shown in FIG. 4, the CAD data creation device 100 reads specific drawing data from the drawing DB 14B according to a user instruction, and displays the drawing data on the display 3 (S201).

  Next, the CAD data creation device 100 accepts selection of one line segment from the plurality of line segments in the displayed drawing data from the user (S202), and receives the start point coordinates and end point coordinates of the accepted line segments. By searching the line segment information DB 14C as a key, line segment information related to the line segment is specified and referred to (S203). Then, the CAD data creation device 100 displays the member name and the member ID included in the referenced line segment information on the display 3 (S204).

  FIG. 5 is a diagram illustrating an example of a screen displayed on the display 3 in the member display process, where (a) is an example of a screen displayed as a result of the process of step S201, and (b) is a process of step S204. The example of the screen displayed as a result of each is shown. As shown in FIG. 5A, the display screen 110 displays four line segments A1, A2, A3, and A4 constituting a certain member. In addition, an arrow-shaped cursor CSR for specifying a line segment is displayed on the display screen 110. The user uses the cursor CSR to select one of the line segments A1, A2, A3, and A4. Here, it is assumed that the line segment A2 is selected.

  After the line segment A2 is selected and the above steps S202 and S203 are performed, the step S204 is performed, whereby the display screen 110 displays the members constituting the line segment A2 as shown in FIG. The member name and member ID are displayed. In FIG. 5B, reference numeral 200 indicates a member identification information display field, and the display frame 201 of the member identification information display field 200 includes “column” which is the member name of the member formed by the line segment A2. The member ID “C1” is displayed.

  As a result of this member display processing, the user can easily grasp which member the line segment A2 constitutes. When there are many members in the drawing data, or when multiple members are arranged so as to overlap, a situation may occur in which it is not possible to recognize which member a certain line segment constitutes. is there. In such a case, it is possible to accurately grasp the relationship between the line segment and the member by executing the above-described member display process. Therefore, it is possible to confirm whether or not correction work is necessary.

  In this embodiment, the member name and the member ID are displayed in the display frame 201 of the member identification information display field 200. However, only one of them may be displayed, and the member is displayed with other information. You may make it display what can be identified.

(3) Member Verification Process FIG. 6 is a flowchart showing the process procedure of the member verification process executed by the CAD data creation apparatus 100. As shown in FIG. 6, the CAD data creation device 100 reads specific drawing data from the drawing DB 14B according to the user's instruction, and displays the drawing data on the display 3 (S301).

  Next, the CAD data creation device 100 accepts selection of one line segment from the plurality of line segments in the displayed drawing data from the user (S302), and receives the start point coordinates and end point coordinates of the accepted line segments. By searching the line segment information DB 14C as a key, line segment information related to the line segment is specified and referred to (S303).

  Next, the CAD data creation device 100 searches the line segment information DB 14C using the member ID of the referenced line segment information as a key, thereby obtaining the start point coordinates and end point coordinates of the line segment that constitutes the same member as the line segment. Obtain (S304). As a result, the line segment selected by the user and the start point coordinates and end point coordinates of the line segment constituting the specific member together with the line segment are obtained.

  Next, based on the start point coordinates and end point coordinates of the plurality of line segments obtained as described above, the CAD data creation device 100 determines whether one closed region is formed by connecting these line segments. Is determined (S305). If it is determined that the closed region is formed (YES in S305), the CAD data creating apparatus 100 determines that the member is normally written, and displays normal information indicating the fact on the display 3 ( S306). On the other hand, when it is determined that the closed region is not formed (that is, the opening is provided) (NO in S305), the CAD data creation device 100 determines that the member is not normally written, and accordingly. Is displayed on the display 3 (S307).

  FIG. 7 is a diagram illustrating an example of a screen when error information is displayed on the display 3 in the member verification process. As shown in FIG. 7, the display screen 120 displays three line segments A1, A2, and A3 that constitute a certain member, and one line segment B1 that constitutes another member. In addition, on this display screen 120, an arrow-shaped cursor CSR for specifying a line segment is displayed. The user uses the cursor CSR to select one of the line segments A1, A2, and A3. Here, it is assumed that the line segment A2 is selected.

  In the example shown in FIG. 7, after the line segment A2 is selected and step S303 is executed, the start point coordinates and end point coordinates of the line segments A1 and A3 are acquired in step S304. In step S305, whether or not a closed region is formed is determined based on the start point coordinates and end point coordinates of the line segments A1 to A3. In this example, it is determined that the closed region is not formed. Therefore, step S307 is executed. As a result, an error information display field 210 is displayed on the display screen 120 as shown in FIG. 7, and information such as “The member is not input correctly” is displayed in the error information display field 210.

  As a result of the member verification process, the user can easily find a member or the like that is incomplete due to a lack of line segments. When there are many members in the drawing data or when multiple members are arranged so as to overlap, it is determined whether or not a certain member is correctly input and whether or not the line segment is insufficient. However, it is possible to easily make such a determination by executing the above-described member verification process. In the example shown in FIG. 7 as well, although it seems that the members are correctly input by the line segments A1 to A3 and the line segment B1, the line segment B1 is a line segment constituting a member different from the line segments A1 to A3. Therefore, the line segment is actually insufficient and the member is in an incomplete state. By executing this member verification process, it is possible to easily find a place that requires such correction.

  In step S305, if it is determined that the line segment constituting the member is insufficient, that is, the member is not correctly input, the CAD data creating apparatus 100 automatically generates the insufficient line segment. You may do it. FIG. 8 is a flowchart showing a processing procedure when such a line segment is generated. As shown in FIG. 8, the CAD data creation device 100 uses the start point coordinates and end point coordinates of each line segment acquired in step S <b> 304 described above, so that the line segment that needs to be added (hereinafter referred to as “additional line”). Start point coordinates and end point coordinates are acquired (S401).

  Next, the CAD data creation device 100 generates line segment information of the additional line segment (S402). The member name, member ID, layer, line type, line width, and color information included in the additional line segment line information are the same as the information included in the line segment information referenced in step S303 described above. It becomes.

  Next, the CAD data creating apparatus 100 registers the generated line segment information in the line segment information DB 14C (S403), and further reads out the drawing data relating to the drawing in which the additional line segment appears from the drawing DB 14B, and then draws the drawing. Drawing data is updated by adding an additional line segment to the data (S404). Then, the CAD data creation device 100 displays the updated drawing data on the display 3 (S405). As a result, the member is correctly input, and the user can confirm this.

(4) Line Segment Movement Process FIG. 9 is a flowchart showing the process procedure of the line segment movement process executed by the CAD data creation device 100. As shown in FIG. 9, the CAD data creation device 100 reads specific drawing data from the drawing DB 14B according to a user instruction, and displays the drawing data on the display 3 (S501).

  Next, the CAD data creation device 100 receives from the user an instruction to move one of the plurality of line segments in the displayed drawing data (S502). For example, the user selects a moving line segment by clicking on the moving line segment (hereinafter referred to as “moving line segment”) with the mouse, and moves the moving line to a desired position by dragging and dropping the mouse. This is done by moving the minutes.

  After moving the moving line segment, the CAD data creating apparatus 100 searches the line segment information DB 14C using the start point coordinates and the end point coordinates before moving the moving line segment as keys, thereby obtaining line segment information related to the moving line segment. Specify and refer to this (S503). Then, the CAD data creating apparatus 100 searches for the line segment information DB 14C using the member ID of the line segment information referred to as a key, thereby specifying a line segment constituting the same member as the move line segment ( S504).

  Next, the CAD data creating apparatus 100 calculates the difference between the start point coordinates and end point coordinates before movement of the movement line segment and the start point coordinates and end point coordinates after movement, that is, the movement amount, and the line segment specified in step S504 is calculated. The starting point coordinates and the ending point coordinates of the line segment when moved by the same amount as the moving amount are calculated (S505). Next, the CAD data creating apparatus 100 writes the line segment information DB 14C in the line segment information DB 14C by writing the calculated start point coordinates and end point coordinates of the line segment and the start point coordinates and end point coordinates after movement of the moving line segment in the line segment information DB 14C. Update (S506). Then, the CAD data creating apparatus 100 displays the drawing data after each line segment is moved on the display 3 in accordance with the updated start point coordinates and end point coordinates of each line segment (S507).

  By executing the line segment moving process as described above, it is possible to move other line segments that constitute the same member as the line segment only by performing an operation of moving one line segment. As a result, the entire member can be moved to a desired position. As a result, it is possible to avoid a situation in which only one line segment is erroneously moved and the member is not correctly represented.

(5) Line Segment Deletion Process FIG. 10 is a flowchart showing the process procedure of the line segment deletion process executed by the CAD data creating apparatus 100. As shown in FIG. 10, the CAD data creation device 100 reads specific drawing data from the drawing DB 14B in accordance with a user instruction, and displays the drawing data on the display 3 (S601).

  Next, the CAD data creation device 100 accepts an instruction to delete one of the plurality of line segments in the displayed drawing data from the user (S602). This deletion instruction is performed, for example, when the user selects a line segment to be deleted (hereinafter referred to as “deleted line segment”) by clicking with the mouse.

  Next, the CAD data creating apparatus 100 searches for the line segment information DB 14C using the start point coordinates and end point coordinates of the deleted line segment as keys, thereby identifying the line segment information related to the deleted line segment, and refers to this (S603). ). Then, the CAD data creating apparatus 100 searches the line segment information DB 14C using the member ID of the line segment information that has been referred to as a key, thereby specifying a line segment that constitutes the same member as the deleted line segment ( S604).

  Next, the CAD data creating apparatus 100 deletes the line segment information specified in step S604 and the line segment information to be deleted from the line segment information DB 14C (S605), and displays the drawing data after these line segments are deleted. This is displayed on the display 3 (S606).

  By executing the line segment deletion process as described above, it is possible to delete other line segments that constitute the same member as the line segment only by selecting one line segment and instructing the deletion. it can. As a result, the entire member is deleted. As a result, it is possible to avoid a situation in which some line segments are left unintentionally in spite of trying to delete the entire member.

(6) Layer Addition Processing FIG. 11 is a flowchart illustrating a processing procedure for layer addition processing executed by the CAD data creation device 100. As shown in FIG. 11, the CAD data creating apparatus 100 first identifies a line segment that has not yet been subjected to the layer addition process from the line segment information stored in the line segment information DB 14C, and the line segment. The line segment information is referred to (S701). The line segment identification process here may be performed by identifying the line segment selected by the user, and flag information indicating whether or not the layer addition process has been performed is provided for each line segment information. The flag information may be used to extract line segments of line segment information that has not been subjected to layer addition processing.

  Next, the CAD data creating apparatus 100 searches the line segment information DB 14C using the member ID of the referenced line segment information as a key, thereby specifying a line segment that constitutes the same member as the line segment specified in step S701. The start point coordinates of all the line segments are acquired (S702).

  Next, the CAD data creation device 100 stores a layer (hereinafter referred to as “additional layer”) in which the member name and member ID of each line segment are written at a position a predetermined amount away from the start point coordinates of each line segment acquired in step S702. Generate (S703), and register the additional layer in the drawing data (S704). Then, the CAD data creating apparatus 100 displays the drawing data in which the additional layer is registered on the display 3 (S705).

  FIG. 12 is a diagram showing an example of a screen displayed on the display 3 in the layer addition process, where (a) shows an example of a screen on which a layer representing a member is displayed, and (b) shows a step. An example of a screen on which an additional layer generated as a result of the process of S703 is displayed, and (c) shows an example of a screen displayed in step S705.

  As shown in FIG. 12A, the display screen 130 displays a layer in which four line segments constituting a certain member are represented. Here, in step S701, line segment information of any of these four line segments is referred to.

  In the additional layer generated in step S703 described above, as shown in FIG. 12B, the “column” which is the member name of each line segment and “C1” which is the member ID are the start points of the line segments. It is written in the vicinity. And as shown in FIG.12 (c), on the screen 130 displayed in step S705, the screen of Fig.12 (a) and (b) is overlaid and displayed. As a result, the user can confirm that the pillar constituted by each line segment and identified by the member ID “C1” exists in the drawing data.

  The CAD data creation apparatus 100 displays the additional layer as appropriate according to the user's instruction, so that the user can visually confirm the correspondence between each line segment and the member. Therefore, it is possible to easily confirm whether there are no errors in the drawing.

  In the present embodiment, characters representing member names and member IDs are arranged near the start point coordinates of each line segment, but the present invention is of course not limited to this mode. The member name and the member ID may be arranged near the end point coordinates or the center coordinates of each line segment, or may be arranged at other positions. In addition, the correspondence between each line segment, the member name, and the member ID may be made clearer by arranging the member name and the member ID with a lead line. Further, in the same manner as in step S305 described above, it is determined whether or not a closed region is formed by each line segment. When it is determined that a closed region is formed, a member name and a member ID are arranged in the closed region. Alternatively, see FIG. In this case, the member name and the member ID are expressed in the member that is correctly input, and the member name and the member ID are not expressed in the member that is not input correctly, so there is no error in the drawing. You can easily check whether or not.

  In this embodiment, the member name and the member ID are displayed. However, only one of them may be displayed, and other information that can identify the member is displayed. May be.

  The CAD data creation device, CAD data creation method, and computer program of the present invention are a CAD data creation device, CAD data creation method, computer program, etc. for creating CAD data of various buildings such as apartment houses, individual houses, and office buildings. Useful as.

1 Main Body 2 Input Unit 3 Display 11 CPU
12 ROM
13 RAM
DESCRIPTION OF SYMBOLS 14 Hard disk 14A CAD data creation program 14B Drawing database 14C Line segment information database 15 Data reading device 16 Input / output interface 17 Image output interface 18 Portable recording medium 100 Design book management device 141 Start point field 142 End point field 143 Member name field 144 Field 145 Layer field 146 Line type field 147 Line width field 148 Color field BS bus

Claims (8)

A line segment input receiving means for receiving an input of one line segment constituting a part of the building member;
Member identification information acquiring means for acquiring member identification information for identifying a member constituting one line segment whose input is received by the line segment input receiving means;
A line segment-member data storage unit that stores line segment-member data in which the member identification information acquired by the member identification information acquisition unit is associated with the one line segment;
When the selection of one line segment is received from the user , the same member as the selected one line segment is configured with reference to the line segment-member data stored in the line segment-member data storage unit. First line segment specifying means for specifying a plurality of line segments ;
Closed region determining means for determining whether or not a closed region is formed by the plurality of line segments specified by the first line segment specifying means and the selected one line segment ;
A CAD data creation device comprising: output means for outputting information indicating that the input of the member is not correct when the closed region determining means determines that a closed region is not formed. When it is determined that the closed region is not formed by the closed region determination means, further comprising a line segment generating means for generating a line segment necessary for forming the closed region,
Line segment-member data in which the member identification information for identifying the member formed by the plurality of identified line segments is associated with the line segment generated by the line segment generation unit is stored in the line segment-member data storage unit. Configured to remember,
The CAD data creation device according to claim 1. Line segment selection receiving means for receiving selection of line segments in CAD data;
Member identification information that refers to the line segment-member data stored in the line segment-member data storage unit and outputs member identification information associated with the line segment selected by the line segment selection receiving means. The CAD data creation device according to claim 1, further comprising output means. When an instruction to move the position of the line segment is received, the line constituting the same member as the line segment related to the move instruction is referred to by referring to the line segment-member data stored in the line segment-member data storage unit A second line segment identification means for identifying the minute;
The CAD according to any one of claims 1 to 3, further comprising: a line segment moving unit that moves the position of the line segment specified by the second line segment specifying unit together with the position of the line segment related to the movement instruction. Data creation device. When an instruction to delete the position of a line segment is received, the line constituting the same member as the line segment related to the delete instruction is referred to by referring to the line segment-member data stored in the line segment-member data storage unit A third line segment identification means for identifying the minute;
The CAD data creation device according to claim 1, further comprising: a line segment deleting unit that deletes the line segment related to the deletion instruction and the line segment specified by the third line segment specifying unit. A fourth line segment specifying means for specifying a line segment constituting the same member with reference to the line segment-member data stored in the line segment-member data storage unit;
With reference to the line segment-member data stored in the line segment-member data storage unit, the member identification information associated with the line segment specified by the fourth line segment specifying means is set to an arbitrary layer of CAD data. The CAD data creation device according to any one of claims 1 to 5, further comprising: member identification information writing means for writing to the member. A computer comprising a storage unit
Receiving an input of one line segment constituting a part of a building member;
Acquiring member identification information for identifying a member constituted by one line segment that has received an input; and
Storing line segment-member data in which the acquired member identification information is associated with the one line segment in the storage unit;
When the selection of one line segment is received from the user , the same member as the selected one line segment is configured with reference to the line segment-member data stored in the line segment-member data storage unit. Identifying multiple line segments ;
Determining whether a closed region is formed by the plurality of identified line segments and the selected one line segment ; and
And a step of outputting information indicating that the input of the member is not correct when it is determined that the closed region is not formed. A computer having a storage unit,
A line segment input receiving means for receiving an input of one line segment constituting a part of the building member;
Member identification information acquiring means for acquiring member identification information for identifying a member constituting one line segment whose input is received by the line segment input receiving means;
Means for storing line segment-member data in which the member identification information acquired by the member identification information acquisition means is associated with the one line segment in the storage unit;
When the selection of one line segment is received from the user , the same member as the selected one line segment is configured with reference to the line segment-member data stored in the line segment-member data storage unit. a line segment specifying means for specifying a plurality of line segments that constitute a plurality of line segments,
Closed region determining means for determining whether or not a closed region is formed by the plurality of line segments specified by the line segment specifying means and the selected one line segment ;
A computer program for functioning as output means for outputting information indicating that the input of a member is not correct when the closed area determining means determines that a closed area is not formed.

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