JPH0721241A - Continuous copying method for graphic - Google Patents

Abstract

PURPOSE:To reduce operation trouble and operation time for continuously copying a graphic through the use of CAD. CONSTITUTION:A copy source graphic, the reference line of a copy, the reference point of the reference line, the reference point of a copy source and a copy pattern (to continuously copy data at the interval of 5mm, for example) are previously set. A position on the reference line is obtained in accordance with the copy pattern, and the reference point after copying is obtained in the position of a length L in a theta direction from the tangent of the obtained position. The copy source graphic is copied on the reference point after copying by holding the relative position relation of the copy source graphic and the reference point of the copy source.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for continuously copying graphics in CAD (computer aided design).

[0002]

2. Description of the Related Art A standard apparatus configuration of a CAD which is commonly used at present is shown in FIG. 1 in FIG.
Is a CPU of a computer, 2 is a memory, 3 is a keyboard, 4 is a pointing device such as a mouse or tablet, and 5 is a display device. In addition to this, an external storage device such as a hard disk is usually added in many cases.

CAD draws figures and characters using the pointing device 4 or the keyboard 3 and inputs data to a computer. As a CAD editing function, it is common to have a function of correcting data that is erroneously input, a function of copying the same description content as the input data, and the like.

[0004]

In normal CAD, when copying input data, a method of copying by designating a copy source figure, a copy position, and a rotation angle (may not exist) at the time of copying is adopted. I am taking it. According to this method, when it is desired to continuously copy a plurality of similar figures along a certain line, a great deal of manpower is required. Many figures that require continuous copying of similar figures along a line are found in maps and the like, such as railways and banks.

The present invention has been made in view of the above points, and an object of the present invention is to provide a method of continuously copying graphics, which allows continuous copying with a small number of operating steps.

[0006]

SUMMARY OF THE INVENTION The present invention, in a computer-aided design continuous copying method, continuously copies a copy source graphic, a copy source reference point spaced a predetermined distance from the copy source graphic. , A reference line drawn along the position, a reference point on the reference line, and a copy pattern designating a copying mode such as an interval of continuous copying, rotation at the time of copying, a copying range, and the like are set in advance. A point on the reference line that is separated from the reference point on the line by the distance set in the copy pattern is obtained, and a point separated by a length L in the θ direction from the tangent line contacting the reference line at that point is designated as the reference point after copying. The copying source graphic is copied to the reference point after the copying while maintaining the relative positional relationship with the reference point of the copying source, and the copying operation is continuously performed along the copying pattern.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. According to the present invention, a CAD as shown in FIG. 3 is used to set a copy source figure, a copy reference line, a reference line reference point, a copy source reference point, and a copy pattern in advance as shown in FIG. The copying source figure is continuously copied according to the set contents.

As the copy source graphic to be designated first, a graphic already input as shown in FIG. 1 may be used, or it may be designated later by the pointing device 4 or the like. The reference line is a line that has already been input, and an arbitrary line (which may be a broken line or a curved line) drawn as shown in FIG. 1 along the position for continuous copying is used, or the pointing device 4 is used later. You may specify by

The reference point of the reference line is any one point on the reference line. The reference point of the copy source is any one point in the CAD input range. Where to copy the copy pattern along the reference line (for example, 5 mm at equal intervals, 2 m
m / 5mm repetition, etc.), rotation angle after copying (eg, no rotation, same rotation as tangent rotation, etc.), designation of copy range (eg, copying only to half of the reference line)
including.

In FIG. 1 (a), L indicates the length of the line connecting the reference point of the reference line and the reference point of the copy source. Also θ
Indicates an angle formed by a tangent to the reference line at the reference point of the reference line and a line connecting the reference point of the reference line and the reference point of the copy source.

First, in order to continuously copy the copy source figure of FIG. 1A, a position on the reference line is obtained from the reference point of the reference line according to the copy pattern, and a length in the θ direction from the tangent line of the obtained position. A reference point after copying is obtained at the position L. Then, the copy source figure is copied to the reference point after the copy while maintaining the relative positional relationship between the copy source figure and the reference point of the copy source. At this time, if rotation is necessary, the figure after copying is rotated around the reference point after copying.

Such copying operation is automatically repeated according to the set copy pattern until all copying is completed, and the result is shown in FIG. 1 (b). In addition, when inputting a railroad figure by CAD, if the reference line and copy source figure are drawn by the above-mentioned procedure and then copied so as to rotate at the same intervals as the rotation of the tangent line, the railroad figure becomes simple as shown in FIG. Data can be input to CAD.

[0013]

As described above, according to the present invention, a point on the reference line which is separated from the reference point of the reference line by the distance set by the copy pattern is obtained, and θ is calculated from the tangent line tangent to the reference line at the point.
A point separated by a length L in the direction is designated as a reference point after copying, and the copying source graphic is copied to the reference point after copying while maintaining a relative positional relationship with the reference point of the copying source, and the copying operation is performed. Since it is performed continuously along the above-mentioned copy pattern, it is possible to input a CAD in a small number of times when the figure is continuously copied, which was conventionally required to input a great amount of CAD. And the operating time is significantly reduced.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, in which FIG. 1A is an explanatory diagram showing a relationship between a copy source graphic and each setting element, and FIG. 1B is an explanatory diagram showing a result of continuous copying.

FIG. 2 is an explanatory diagram showing a result of continuous copying according to another embodiment of the present invention.

FIG. 3 is a block diagram showing a CAD device configuration.

[Explanation of symbols]

 1 ... CPU 2 ... Memory 3 ... Keyboard 4 ... Pointing device 5 ... Display device

Claims (1)

[Claims] 1. A computer-aided design continuous copying method of a graphic, a copy original graphic, a reference point of the copy original separated from the copy original graphic by a predetermined distance, and a reference drawn along a position to be continuously copied. A line, a reference point on the reference line, an interval of continuous copying,
A copy pattern designating a copy mode such as rotation and copy range at the time of copying is set in advance, a point on the reference line separated from the reference point on the reference line by the distance set by the copy pattern is obtained, and at that point A point separated by a length L in the θ direction from the tangent line tangent to the reference line is designated as the reference point after copying, and the relative position of the copy source graphic to the reference point of the copy source is maintained at the reference point after copying. A method of continuously copying a figure, characterized in that the copying operation is performed continuously along the copying pattern.