JPH04247581A - Arranging method for graphic in computer graphics - Google Patents

Abstract

PURPOSE:To efficiently perform the generating processing of a graphic by setting the arbitrary position of a selected graphic at an arranging origin after the graphic is placed temporarily at the arbitrary position on a graphic display, and aligning the arranging origin with a desired arranging position. CONSTITUTION:The graphic 22 is placed temporarily in the inside of the graphic 21. A temporarily placed graphic 22 is recognized visually. and an operator sets an appropriate arranging origin on the graphic based on the graphic 22 and a position 23 desired to arrange, and a triangular apex 25 is set as the arranging origin. After that, an arranging operation is completed by designating the arranging origin at the arranging position.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for arranging figures in computer graphics used in CAD systems and the like.

0002

2. Description of the Related Art When creating graphics such as architectural drawings using computer graphics, there is an operation for arranging the graphics at a predetermined position on a display screen. For example, the operation involves aligning mounting holes of parts with predetermined positions of pipes on piping drawings. Conventionally, in such a case, the origin of the arrangement of the figure is uniquely determined, for example, the center of the shape, and the arrangement is completed in one operation.

0003

[Problem to be solved by the invention] That is, in the past,
When placing a shape, there is only a placement origin specific to the shape,
Since it is necessary to arrange everything at once based on this origin, it is difficult to align the arrangement, and the arrangement may fail, forcing the operator to repeat the operation. for example,
When an operator attempts to place a triangular figure at a corner of a rectangular figure, the operator must consider the shape of the figure and the origin of the arrangement, and use experience and intuition to place the figure. For this reason,
If the shape of the figure is larger than what the operator had in mind, the triangular figure 22 will protrude from the frame of the rectangular figure 21, as shown in FIG. It may not be possible to place it in the correct position. In addition, in FIG. 3, it is assumed that the fixed arrangement origin is the center 24 of the triangle. The present invention solves the above-mentioned problems, and aims to provide a method for arranging figures in computer graphics, which includes a step of temporarily placing figures, reduces the number of failures in placement, and allows accurate placement.

0004

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a method for arranging figures when drawing using a computer on a graphic display.
After the selected figure is temporarily placed at an arbitrary position on the graphic display, the arbitrary position of the figure is set as the origin of arrangement, and this origin of arrangement is aligned with the desired arrangement position.

[0005]

[Operation] According to the above method, it is possible to temporarily place a selected figure at an arbitrary position, and then set the arbitrary position of the figure as the origin of arrangement, and align this origin with the desired arrangement position. This allows for accurate placement.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A CAD system according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the block configuration of a CAD system. The CAD system consists of a hard disk 1 that stores in advance building frame configuration figures such as architectural drawings, a keyboard 2 and a mouse 3 for inputting architectural drawing creation commands, parameters of the building frame configuration figures, the range to create figures, etc.; The CAD main body 4 has the function of importing data such as commands and positions, editing the structure configuration figures, and calculating data in order to display figures such as architectural drawings on a display screen, and this CAD main body 4. a graphic display 5 for displaying processed graphic data;
It is composed of a plotter 6 that outputs the graphic data as an architectural drawing on recording paper.

The CAD main body 4 includes a CPU 7 that calculates coordinate values of graphic data, and an RO that stores CAD programs.
M8 and RAM9, which serves as a work area for re-editing figures.
It consists of an interface 10 that transfers data etc. between the CAD main body 4 and each of the above devices. The RAM 9 is provided with an area for a video ram 9a.
By writing graphic data into the display 5, a graphic such as an architectural drawing is displayed on the display 5.

Using the above system, the corner 23 of the rectangular figure 21 is now drawn on the drawing screen as shown in FIG.
The procedure for arranging the triangular figure 22 will be explained using FIGS. 4 and 5. FIG. 4 shows the state shown on the display screen when the method of the present invention is carried out, and FIG. 5 shows a flowchart of the operation. First, as shown in FIG. 4A, a figure 22 to be placed is temporarily placed at an arbitrary position, here inside a rectangular figure 21 (step S1). Then, the operator visually recognizes the temporarily placed figure 22 and sets an appropriate placement origin on the figure 22 based on the figure 22 and the desired placement position 23 (S2). In this example, as shown in FIG. 4(b), the apex 25 of the triangle may be set as the origin of the arrangement. After that, by specifying this placement origin as the placement position (S3), (c) in FIG.
The placement operation is completed as shown in . At this time, the temporarily placed figure disappears.

[0009]

[Effects of the Invention] As described above, according to the method of the present invention, there is a step of temporarily placing the figure to be placed, and the figure can be visually confirmed before being placed, thereby reducing placement failures. In addition, since an arbitrary position can be set as the origin of arrangement, accurate arrangement is possible, and efficient graphic creation processing is possible when arranging parts such as architectural piping drawings.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a CAD system according to an embodiment of the present invention.

FIG. 2 is a diagram showing a screen for explaining the method of the present invention.

FIG. 3 is a diagram illustrating a conventional method.

FIG. 4 (a), (b), and (c) are diagrams showing the state of the screen when the method of the present invention is implemented.

FIG. 5 is a flowchart of the operating procedure for carrying out the method of the present invention.

[Explanation of symbols]

2 Keyboard 3 Mouse 4 CAD body 5 Display 7 CPU 9 RAM

Claims (1)

[Claims] Claim 1: In a method for arranging figures when drawing using a computer on a graphic display, a selected figure is temporarily placed at an arbitrary position on the graphic display, and then the arbitrary position of the figure is set as the placement origin. A method for arranging figures in computer graphics, characterized in that the arrangement origin is set to a desired arrangement position.