JPS6288049A - Design generator - Google Patents

Abstract

PURPOSE:To reduce an input data to draw a graphic to shorten a working time and to improve the evenness of intervals between curved parallel lines by providing a skip drawing means that does not draw the cross portion of the graphic. CONSTITUTION:The start point (a), the end point (b), and the width W of a rectangle A, and the start point (c), the end point (d), and the width W of a rectangle B are inputted to a CPU4 with a mouse 2 respectively. And by sliding the drawing pen of an automatic plotter 6, a line segment, first of all, from a point (i) to a point (e) through a point (j) is drawn. Next, the drawing pen is made skip from the point (e) to a point (f) not to draw a line segment La, and the line segment from the point (f) to a point (g) through points (k) and (l) is drawn. At such a time, the drawing pen is made skip again not to draw a line segment Lc from the point (g) to a point (h) and the line segment from the point (h) to the point (i) is drawn. The rectangle B is drawn similarly as in the drawing of the rectangle A.

Description

[Detailed description of the invention] Technical field The present invention relates to a design creation machine.

It is particularly effective when applied to design creation machines used for print design, package design, etc.

λm x Conventional design creation machines use computers.

A coordinate reading device (digitizer) is used to input score conditions such as dimensions for each figure, one interval, layout, etc. into computer memory, and appropriate figure creation processing is performed on these input data.

With conventional design creation machines, when drawing an intersection where multiple roads intersect on a road map as shown in Figure 7, unnecessary solid lines (indicated by dotted lines in Figure 7) are drawn within the intersection. In order to prevent this, the area near the intersection was drawn as follows. First, an arc A is drawn from a predetermined point to a point a, and a first straight line B is drawn from the point a to a predetermined point. This arc A
, the circular arc C and the straight line D, the circular arc E and the straight line F, and the circular arc G and the straight line aH are drawn in the same manner as the method of drawing the straight line B.

In this drawing method, point a is input to draw arc A, and separately from this, point a is input again to draw straight line B. Similarly for each point input to draw this arc A and straight line B.

Point b, arc E for drawing arc C and straight 4SD
and point C1 for drawing straight line F, point C1 for drawing arc G, and point L-d for drawing straight line [2].

As described above, the conventional design creation machine has the problem that a huge amount of data must be input when drawing a road map.

In addition, roads are usually represented by two parallel lines, but in conventional design machines, these two parallel lines are drawn based on separate data as described above, so it is difficult to draw curved roads etc. Another problem was that it was extremely difficult to draw the width of the road at equal intervals.

An object of the present invention is to reduce the amount of input data required for drawing figures in a design creation machine.

The objective is to provide technology that can improve work efficiency.

Another object of the present invention is to provide a technique that can improve the uniformity of the spacing between two curved lines while maintaining parallelism in graphic drawing.

The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

11 prongs In order to achieve the above object, the present invention uses one figure and one interval.

an input device for inputting dimensions of a layout, etc., a starting point, a point indicating one curvature, an end position, etc.; a display for displaying a figure; and a figure creation processing device for creating a figure based on the input data. This design creation machine is equipped with a drawing means that does not draw intersections of figures.

Hereinafter, the configuration of the present invention will be explained along with examples.

Innocent craftsman First, a closed figure in this embodiment will be explained.

A closed figure, as shown in FIG. 1, is a figure whose outline is closed by a circular arc or a straight line, as shown in (a) and (b) of FIG. The inside of a closed figure is an area inside the closed figure, and therefore, the boundary portion, that is, the contour line of the closed figure is not included within the closed figure. Further, the area other than the area inside the closed figure is referred to as the area outside the closed figure.

Next, a system configuration of a design creation machine according to an embodiment of the present invention will be explained.

FIG. 2 is a block diagram for explaining the system configuration of the design creation machine of the embodiment.

In FIG. 2, reference numeral 1 denotes an image input device for inputting a figure such as an image or character, and uses, for example, a raster scan type video camera. Reference numeral 2 denotes a command and coordinate point input device (hereinafter referred to as a mouse) for controlling a free cursor on the color display S and inputting coordinate points of one figure.

3 is a keyboard for inputting general information such as commands and numerical values, 4 is a graphics processing unit (hereinafter referred to as CPU) consisting of a computer, etc., and 5 is a color display, which is stored in the frame buffer memory in the CPUJ. This is for displaying images and figures. That is, the color display 5 displays raster information of images, vector information of figures, etc. for layout of a print design. 6 is an automatic drawing machine, C
The information stored in the memory in the CPU 4 is stored in the memory in the CPU 4 by controlling a control motor (not shown) to move the drawing pen in the X-axis direction and the Y-axis direction using commands and numerical information from the CPU 4. The information is drawn as a line.

The design creation machine of this embodiment is comprised of each device constituting the system shown in FIG. 2 and software to be described later. Here, the principle of design creation of this embodiment will be explained.

3 and 4 show closed figures for explaining the principle of design creation in this embodiment.

Figure 3 (a) shows a shape in which rectangle A and rectangle B are overlapped. If line segments La, Lb, Lc, and Ld in the area where rectangles A and B overlap are not drawn, the figure shown in FIG. 3(b) will be obtained. The drawing method shown in FIG. 3(b) is performed, for example, as follows. First, the starting point a, ending point and width W of one rectangle A in FIG. 3(b) are input using the mouse 2. Similarly, input the start point C, end point d, and width W of the other rectangle B. Based on the input of these data, it is possible to draw from either rectangle A or B, but if you want to draw from rectangle A or B, for example, the drawing pen of automatic drawing machine 6 shown in Fig. 2 is used. For example, first draw a line segment from point i to point j, then draw a line segment from point j to point e. Next, the drawing pen is moved from point e to point f so as not to draw the line segment La at the intersection shown in FIG. 3(a). Next, move the drawing pen from point r to point
By sliding through Q to point g, draw a line segment between them. Here, the drawing pen is again moved from point g to dot so as not to draw the line segment Lc shown in FIG. 3(a). Then, by sliding the drawing pen from the dot to the point i, a line segment therebetween is drawn. Next is the drawing of rectangle B, but the spoon can also be drawn in the same way as drawing the rectangle, that is, from point m to point n.

Draw each line segment from point n to point n. Fly the drawing pen from the dot to point e. Draw from point e through points o and p to point f. The drawing pen is skipped from point f to point g. Draw from point g to point m.

By using the above-described drawing method, the line segments La, Lb, Le, and Ld at the intersection of rectangles A and B are not drawn. Moreover, when the design creation machine of this embodiment is used, as mentioned above, the two intersecting rectangles A and B in FIG.
5. Input small data of only the end point and width W, starting point C1 of rectangle B, end point d, and width W to the CPU 4 using the mouse 2; It can be drawn using an automatic drawing machine 6.

In addition, in Figure 3 (a), both ends of rectangle A-B are the starting point a.
, e, end points, and d, but depending on the software program type, a half-shape with the starting point a, C1 end point, and d as centers, extending outside the rectangle instead of going inside the rectangle. You can also draw a circle.

Furthermore, as shown in FIG. 4, even if it is a shape that intersects a rectangular shape A with semicircles at both ends and a shape B with a bowed rectangle and semicircles at both ends, Same as the drawing method explained using FIG. 3, that is,
By using a drawing method that slides the drawing pen outside the intersection area of figures and skips the drawing pen inside the intersection area, it is possible to draw so that unnecessary solid lines do not appear in the portions indicated by dotted lines within the intersection area.

The data input to draw the figure shown in FIG. 4 are the starting point a, the ending point a, and the width W between two substantially parallel lines. The data input to draw figure B are a starting point a, an ending point b, a point C indicating curvature, and a width W between two substantially parallel arc-shaped lines.
It is. The point C indicating the curvature determines the degree of curvature of the figure, and is arbitrarily determined between the starting point a and the ending point of the figure to be drawn (figure B in Figure 4).

The drawing method is the same as the drawing method explained using FIG. 3, so the explanation thereof will be omitted.

Next, software for drawing an intersection diagram using two parallel lines will be described based on the above-mentioned principle of this embodiment.

The software of this embodiment includes the image input device i! shown in FIG. 1i and mouse 2, input the starting point, end point 1 width of the parallel straight line to be drawn, the starting point, end point, width, and point indicating the curvature for parallel curves, and enter the maximum value and minimum value of each figure (straight line 1 circular arc). Find the array and store it in memory.

Next, for the rectangle whose diagonal is the maximum value and minimum value found earlier, find all the rectangles that intersect with the rectangles of other shapes (or those that may intersect with the included shapes), and store the array in memory. to be memorized. After this, the system shown in Figure 2 is operated based on the procedure of the software for drawing parallel straight lines shown in Figure 5 or the software for drawing parallel curves shown in Figure 6. By doing this, parallel straight lines or parallel curves are drawn.

Next, the rough 1-wear for drawing parallel straight lines in this embodiment will be explained using FIG.

In (1) of Figure 5, it is determined whether the starting point of the figure to be drawn is outside the closed figure, and if YES, the starting point is set in the array in (2), and if No, in (3). Move.

Next, in (3), the figure determined in (1) is
If it is NO, go to (7), and if YES, go to (4) to find the point of intersection with the straight line or arc.

Next, in (5), it is determined whether the intersection of the figure and the straight line or circular arc is outside the closed figure, and if YES, (6)
Store the intersection points in an array.

If NO, move to (7).

Next, in (7), it is determined whether there is a straight line or circular arc other than the straight line or circular arc that intersects with the figure, and YE
If S, return to (3); if No, proceed to (8).

Next, in (8), it is determined whether the end point is outside the closed figure, and if YES, the end point is stored in the memory in (9),
If NO, move to (10).

Next, in (io), the data in the array stored in the memory is rearranged in descending order from the starting point.

Next, in (11), 1 is assigned to the control variable ■.

Next, in (12), the midpoint of the control variable's work-th and I+1-th coordinates is first determined, and in (13) it is determined whether the midpoint is outside the closed figure, and if YES, ( 14)
Connect the first and ■+1st coordinates with a straight line,
If NO, move to (15).

Next, in (15), 1 is added to the control variable ■.

Next, in (16), it is determined whether the control variable I is larger than the value (N-1) obtained by subtracting 1 from N, which is the number of coordinate data in the array, and if NO, (12) Return to YE
If S, this routine ends here.

Next, software for drawing parallel curves according to this embodiment will be explained using FIG. 6. Note that (1) to (9) of the software shown in FIG. 6 are the same as (1) to (9) shown in FIG. 5, so the explanation will be omitted.

In (10) of FIG. 6, the coordinate data in the array is rearranged in descending order from the starting point on the arc to be drawn.

Next, in (11), 1 is assigned to the control variable F.

Next, in -(12), find a point that internally divides the 1st and +1st coordinates of the array into 1=2 on the circular arc.

Next, in (13), it is determined whether the point to be internally divided obtained in (12) is outside the closed figure, and if NO, then (
Proceed to step 15), and if YES, connect the coordinates of the first control variable and I+1st with a circular arc in (14).

Next, in (15), 1 is added to the control variable I.

Next, it is determined whether the control variable I is larger than the value (N-1) obtained by subtracting 1 from N, which is the number of coordinate data in the array,
If NO, the process returns to (12); if YES, the routine ends here.

[Effects] As explained above, according to the present invention, first-order effects can be obtained.

(1) When creating a design, such as a road map, in which a figure is drawn in which two parallel lines intersect with another two parallel lines, by providing a drawing means that does not draw the intersecting part of the figure, the Starting point of parallel lines.

Since it is only necessary to input a small amount of data such as end points, widths of parallel lines, and points indicating curvature, the time required for one operation can be significantly reduced.

(2) According to (1) above, since each parallel line is drawn using the same data, it is possible to improve the uniformity of the intervals between winding parallel lines seen in a route map or the like.

[Brief explanation of drawings]

FIG. 1 is a diagram for explaining a closed figure in an embodiment of the present invention, FIG. 2 is a block diagram for explaining the system configuration of a design creation machine in an embodiment of the present invention, and FIG. 4 is a diagram for explaining the principle of design creation according to an embodiment of the present invention, and FIG. 5 is a flowchart of software for causing a design creation machine to draw a straight line according to an embodiment of the present invention. FIG. 6 is a flowchart of software for causing a design creation machine according to an embodiment of the present invention to draw a curve, and FIG. 7 is a diagram for explaining problems with a conventional design creation machine. In the figure, 1... image input device, 2... mouse, 3...
・Keyboard, 4...CPU, 5...Color display. 6... Automatic drawing machine.

Claims (1)

[Claims] 1. Dimensions of shapes, spacing, layout, etc., starting position,
A design creation machine comprising an input device for inputting a point indicating curvature, an end position, etc., a display for displaying the shape, and a shape creation processing device for creating a shape based on the input data. , a design creation machine characterized by being provided with a drawing means that does not draw intersections of figures.