JPH0711803B2 - Computer aided design equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] A conventional computer-aided design system (CAD) that creates a drawing by combining points, straight lines, circles, etc. while talking to a display screen.
Then, it took time to design, and if there was a change in the basic design, it was necessary to redesign from the beginning.

The computer-aided design apparatus of the present invention is a computer-aided design apparatus for designing a structure assembly including a plurality of structures, and stores three-dimensional shape information that specifies the shape of each of the plurality of structures. Data file, an input section for inputting relative position information of a specified structure from a predetermined basic reference line in the structure assembly, and a specified part based on the shape information of the structure and corresponding relative position information. A drawing processing unit for generating drawing data of the structure assembly at the design stage is provided, and there are effects such that the design time can be reduced and the change of the basic design can be easily dealt with.

[Industrial application field]

The present invention relates to an improvement in a computer-aided design device for a specific business such as construction.

In recent years, computer-aided design systems (hereinafter referred to as CAD) that perform design while talking to a display screen are becoming popular, but the conventional CAD data input method is to specify a straight line, a center point, and a radius by designating a start point and an end point. It was due to the combination of basic elements such as circles.

However, the above method has a problem in that it takes a relatively long time to input data, and when the basic design is changed, it is necessary to redesign from the beginning.

In particular, it is necessary to design a similar drawing for each floor in the case of design drawings for buildings, etc., and a simple computer-aided design device is required.

[Conventional technology]

 An example of conventional CAD for construction will be described below.

Figure 3 (a) shows the output of design drawings by a general-purpose computer. The basic design of the building (site area, floor, etc.) is performed by the general-purpose computer, and it is composed of pillars C and cores X and Y that pass through the pillars. The basic design drawing is output.

The designer hand-writes the design drawing shown in FIG. 3B for each floor based on the basic drawing.

That is, as shown in FIG. 3 (b), the wall W, the window (opening)
O, large beam G, child beam B, floor (slab) S, etc. details and dimension table 1 of each part are entered to complete the construction drawing.

As a method for automating the handwritten portion, there is a method of writing on the display screen with a light pen or the like. For example, in FIG. 3B, a line is designated, points m and n are designated by a light pen or the like, and a line segment 1 is input.

[Problems to be solved by the invention]

The above conventional method is a method of designing by handwriting based on the basic design or inputting for each line segment, and there is a problem that it takes time to design, and in the above method there is a change in the basic design such as a core line. In that case, there was a problem that the design had to be redone from the beginning.

Therefore, it is an object of the present invention to provide a computer-aided design device that can easily and independently input data of each part and can easily deal with a change in basic design.

[Means for solving problems]

For the above purpose, the present invention has the following constitution as shown in FIG.

(1) A computer-aided design device for designing a structure assembly composed of a plurality of structures, the data file 7 storing three-dimensional shape information for specifying the shape of each of the plurality of structures, An input unit 13 for inputting relative position information of a specified structure from a predetermined basic reference line in the structure assembly, and a structure set at a designated design stage based on the shape information of the structure and corresponding relative position information. And a drawing processing unit 4 for generating three-dimensional drawing data.

(2) In the above (1), a command corresponding to the design stage is provided, and basic reference line input, structure shape information input, and relative position information input are performed in accordance with the input command. The drawing processing unit is configured to generate and display predetermined sectional view data and predetermined elevation view data of the structure assembly.

[Action]

(1) A structure (for construction, a pillar, a window, etc.) is designated, and relative position information from a predetermined basic reference line (core) is input.
This input hits the position with a light pen or the like on the display of the grid line drawing. As a result, the drawing processing unit 4 determines, based on the relative position information from the basic reference line of the structure and the shape information in the data file 7, the drawing data at the design stage at that time, that is, the structure of the structure in the line drawing. Create and display drawing data with objects superimposed.

Due to the above, even if the center line is changed in the building design drawing, etc., the position of the structure is relative to the center line, so there is no need to specify the position of the structure again, and the position is changed automatically. It becomes possible.

(2) In the above (1), in the design stage, for example, when the shape information of the structure such as the wall and the column is input and stored in the data file 7, the basic reference line (core) is defined. Set the corresponding command.

Then, the drawing processing unit 4 causes the basic reference line input, the structure shape information input, and the relative position information input in accordance with the input command, and the predetermined sectional view data and the predetermined elevation view data of the structure assembly. Generate and display.

The operation principle diagram of the present invention of FIG. 1B shows an example of the flow of processing when the present invention is applied to architectural CAD,
For example, a series of operations is divided into the design processes shown in the figure, and commands corresponding to the respective design processes are set. Then, the drawing processing unit 4 performs command processing as shown in the right diagram of FIG. That is, structure definition ・ ・ ・ Input of symbol and shape information of each structure Definition of cores ・ Dimension of each core from the origin Structure arrangement ・ ・ ・ Specified on the screen Sectional view (expanded view) ・ ・ ・ Expanded room , Cross-section of each floor, etc. Elevation ... Dividing as specified by direction (north, east, west, north and south) and setting commands to facilitate operator operation.

〔Example〕

 Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 (a) is a diagram showing an example of a construction drawing by this CAD system, FIG. 2 (b) is a block diagram of an apparatus for implementing the CAD method of the present invention, and FIG. 2 (c) is a flowchart showing the operation, 2 (d) -1 is a diagram showing an example of an indoor development view, FIG. 2 (d) -2 is a diagram showing an example of a sectional view, and FIG. 2 (e) is an elevation view.

〔Constitution〕

In FIG. 2 (b), 3 is a command processing unit, which has a processing procedure for each command, and decodes the command input, data input guidance (display of the format necessary for data input), storage of input data, 4 is a drawing processing unit which executes drawing processing of each command and stores the processing result in the display memory 8 and the data table 7, 5 is a CPU, 6 is Main memory, 7 is a data table (data file 7 in FIG. 1 for storing structure definition, grid line definition data and data such as a development drawing).
8 is a display memory for storing the display data of the graphic display 11 and the character display 14, 10 is an auxiliary memory for saving and storing each program, data of other works, etc., 11 is a construction drawing, etc. A graphic display for displaying, 12 is a command to talk to the graphic display 11,
Key input section for data input, 13 is a tablet for inputting X, Y coordinate values with the attached stylus pen 15, which is used for structure arrangement, 14 is for command and data input in structure definition, center line definition For character display, 15 is a key input section same as above, 16 is a plotter for outputting a completed construction drawing, 17 is an input / output control section for controlling the above input / output section.

[Operation explanation]

 The operation will be described below in the order of the design process.

(1) Structure definition command Input the structure definition command from the key input unit 15. As a result, the following format is displayed on the character display 14, so the specified data is
For example, the names of columns, girders, sub-beams, slabs, walls, openings, etc. (structural symbols C1, C2, etc.) and structural dimensions (X, Y, Z in the case of three-dimensional) are entered. For example, Enter as.

The data is stored in the data table 7 by the input end notification.

(2) Grid line definition command Input the grid line definition command from the key input section 15, and each grid line from the origin X2 ・ ・ 5000 X3 ・ 10000 ・ ・ ・ ・ ・ ・ Y2 ・ ・ 5000 ・ ・ ・ ・ ・Enter as follows.

(3) Structure arrangement command The structure arrangement is displayed on the graphic display 11. The structure is specified by the key input unit 12, and the position is specified by the tablet 13. First, the origin of the core is designated as shown on the display screen. For example, when the stylus pen 18 hits on the tablet, the hit point is set as the origin, and the drawing of the center line designated in (2) above is displayed.

Next, enter the structure symbol (for example, C1), and stylus pen 18
When a hit is made on the display screen of the grid core, the structure having the dimension defined in the above (1) is displayed on the grid screen with the point as a reference. At the same time, the relative position from the core, for example, the relative position information from the hit position is input and saved.

By performing these operations for each structure, a cross-sectional view (developed view) based on the core is displayed.

(4) Development drawing command Concrete dimension drawing, sectional view, indoor development drawing, and ceiling plan are displayed by performing the specified drawing processing by inputting each command.

Concrete dimension drawing command This is displayed after removing the overlapping parts from the above structural layout drawing. See Fig. 2 (a) Indoor expansion command. Expanding the room from the specified X, Y coordinates. See Fig. 2 (d) -1. Section view command. Processing the cross section to the right or left of the specified X, Y coordinates. Will be displayed. See Fig. 2 (d) -2. Ceiling plan view command Ceiling surface development view (5) Elevation view command The exterior of the entire building is processed by specifying north, south, east, and west. Figure 2 (e) (6) Plotter output Output to the plotter 16 by specifying the construction name, floor number, development drawing name, etc.

The commands (4) to (6) are input from the key input unit 12.

As described above, it is possible to easily create a predetermined construction drawing by the conversation process by command input.

In addition, when the core or the like is changed as described above, the position of each structure is changed as a relative position from the core by redefining the core.

〔The invention's effect〕

As described above, according to the present invention, the shape information of the structure is input and the structure is arranged with the basic reference line as a reference. Therefore, even if the basic design such as the core is changed, each design is changed. The drawing data of the stage can be easily modified.

In addition, the drawing data can be created only by setting the command corresponding to the design stage and inputting the data by the input method necessary for the command processing. This has the effect of significantly reducing the time.

[Brief description of drawings]

FIG. 1 (a) is an explanatory view of the principle of the present invention, FIG. 1 (b) is an operation principle diagram, FIG. 2 (a) is a diagram showing a construction drawing example by CAD, and FIG. 2 (b) is the present invention. FIG. 2 (c) is an operation flowchart, FIG. 2 (d) -1 is an indoor exploded view, FIG. 2 (d) -2 is a sectional view, and FIG. 2 (e). Is an elevational view, FIG. 3 (a) is a conventional computer output diagram, and FIG. 3 (b) is a diagram showing an example of a handwritten drawing. In the figure, 1 is a dimensional drawing, 3 is a command processing unit, 4 is a drawing processing unit, 5 is a CPU, 6 is a main memory, 7 is a data table, 8 is a display memory, 10 is an auxiliary memory, and 11 is a graphic display 12. A key input unit, 13 is a tablet, 14 is a character display, 15 is a key input unit, 16 is a plotter, and 17 is an input / output control unit.

Claims (2)

[Claims] 1. A computer-aided design apparatus for designing a structure assembly composed of a plurality of structures, comprising a data file storing three-dimensional shape information for specifying the shape of each of the plurality of structures. An input unit for inputting relative position information of a specified structure from a predetermined basic reference line in the structure assembly, and a design stage specified based on the shape information of the structure and corresponding relative position information And a drawing processing unit for generating drawing data of the structure assembly of FIG. 2. A command corresponding to a design stage is provided, and basic reference line input, structure shape information input, and relative position information input are performed in accordance with the input command.
The computer-aided design apparatus according to claim 1, wherein the drawing processing unit is configured to generate and display predetermined sectional view data and predetermined elevation view data of the structure assembly.