JPH03113578A - Graphic output processing system - Google Patents

Abstract

PURPOSE:To improve the operability of graphic processing by generating a converted graphic by giving prescribed conversion processing to an original graphic by a graphic converting part, and enlarging or reducing the original graphic by unequal conversion rate in an output picture by conversion processing. CONSTITUTION:A graphic output part 1 and the graphic converting part 2 are provided, and the graphic output part 1 outputs the converted graphic to the prescribed output screen 3, and the graphic converting part 2 generates the converted graphic by giving the prescribed conversion processing to the original graphic 4. Besides, this converting processing is processing to enlarge or reduce the original graphic 4 by the unequal conversion rate on the output screen. Accordingly, the graphic in which the remarked part of the graphic is enlarged relatively, and the circumferential part of it is reduced, and in addition, the continuity of a whole picture is reserved, can be outputted. Thus, a user can see a partial enlarged drawing and a general drawing free from a hidden part on one screen at a time, and besides, the can efficiently use the drawing.

Description

[Detailed Description of the Invention] [Summary] Regarding the process of converting and outputting a figure, the Note 11 part of the figure can be enlarged to make it easier to see, while maintaining continuity with other surrounding parts and displaying the figure at the same time. The aim is to provide a graphic output processing method that allows the user to convert the original graphic to the original graphic. A predetermined conversion process is performed to generate the converted figure, and the conversion process is configured to enlarge and reduce the original figure at a conversion rate that is not uniform within the output screen.

[Industrial application field]

The present invention relates to a process of converting and outputting a figure, and particularly to a figure output processing method for enlarging and displaying a part of interest for easy viewing.

[Prior art and problems to be solved by the invention] When a figure processed by a computer is output to a required output device, such as displayed on a CRi" display device or printed by a printing device, the figure is relatively large. In some cases, the entire figure is displayed on a CRT
The image is reduced at an appropriate conversion rate to fit on the screen, and only the portion to be displayed as "C" or "paternity" is cut out, and if necessary, that portion is enlarged and displayed.

In the former display, which zooms out the whole, you can see the whole well, but you cannot see the details, and in the latter display, which enlarges the part, you can see the connection between that part and other parts, or the whole. The outlook is poor.

For this reason, we try to compensate for both by switching between displays at any time, or by superimposing an enlarged view of a part on the overall view using so-called window technology.However, when switching between displays, it is natural to see both at the same time. Even in the case of window display, two parts of the overall view are hidden by the partially enlarged view.
The enlarged view and the overall view are separated and lose continuity.

The object of the present invention is to provide a graphic output processing method that allows a graphic to be enlarged to make it easier to see the focused part of the graphic while maintaining continuity without hiding other peripheral parts and displaying the same at the same time.

[Failure to solve the problem]

FIG. 1(a) shows the configuration of the first graphic output processing method of the present invention, which includes a graphic output section 1 and a graphic conversion section 2. The figure conversion unit 2 performs a predetermined conversion process on the original figure 4 to generate the converted figure, and the conversion process enlarges and enlarges the original figure 4 at a conversion rate that is not uniform within the output screen. This is a reduction process.

Further, in the second to fourth inventions, the conversion process is performed using the following (1) to 4, respectively, where the coordinates of the orthogonal coordinate system representing the original figure 4 are X and y, the coordinates after the conversion are U and v, and s is a constant. (3)
The transformation follows the relationship shown in .

(t) , = 2, , , -+J-(Kichi-2 delivery ■"u
-t-CO5(tan-"-"yo-)v = t-5
in(tan-' ÷ child) Also, FIG. 1(b) shows the configuration of the fifth invention, which includes a graphic output section 1, a conversion processing section 5, and a composition processing section 6, and the graphic output section 1 has , the converted figure is output to a predetermined output screen 3, and the conversion processing unit 5 sets the line connecting the coordinates (Xll, YO) and (XI, Yl) of the orthogonal coordinate system of the original figure 4 as a diagonal line, and the side is the coordinate axis. For parallel rectangular areas,
A figure 11 enlarged 8 times in the X-axis and y-axis directions, a b figure 12 enlarged L times in the X-axis direction and 8 times in the y-axis direction,
C figure 13 enlarged 8 times in the X-axis direction and r times in the y-axis direction
and a d figure 14 enlarged by L times in the X-axis direction and r times in the y-axis direction, and when a first rectangular part of a predetermined shape is specified at an arbitrary position within the rectangular area, , the synthesis processing unit 6 corresponds to a partial figure of the a figure 11 corresponding to the first rectangular part, and second and third rectangular parts adjacent to the left and right and having the same height as the first rectangular part, respectively. each partial figure of the B figure 12, which has the same width as the first rectangular part and corresponds to the vertically adjacent fourth and fifth rectangular parts, and the first to the first rectangular parts. The converted figure is synthesized by each subfigure of the d figure 14 corresponding to each of the four rectangular parts excluding the rectangular part of 5, and the coordinates of both ends of the diagonal line of the first rectangle are (xo + y
o) and (X++V+) as above. ,Yo,X
l, Yl, r, s, and t are set so as to satisfy the equation shown in relation (3) above.

[For production]

By using the above processing method, it is possible to output a figure in which the part of interest in the figure is relatively enlarged, the periphery is reduced, and the continuity of the whole figure is preserved. , the whole view without hidden parts, and one double-sided 1-
can be viewed at the same time. Also, there is no need to output even partially duplicate figures in order to do so, so
You can use the screen efficiently.

〔Example〕

In FIG. 1, for example, the original figure 4 has the brightness b(
x, y).

The figure conversion unit 2 converts predetermined functions f (x+y) and g(
x, y), u=f(x, y), v= g(x
+ y) and the brightness of the point (u, v) on the screen as b
A figure expressed as (x, y) is generated, passed as a converted figure, and displayed on the output screen 3 by the figure output unit 1.

In order to make the M shape output in this way as large as possible so that the details can be easily seen in the necessary parts, and to reduce the size of the M shape to the extent that connection relationships can be seen while maintaining continuity around the parts, use the function described above. f (x, y) and g (x,
It is necessary that the conversion rate in the mapping by y) is such that only a part of the image is enlarged, rather than --like, and the continuity of the figure is maintained.

As a function that satisfies such conditions, for example, -principal-
tan-・(t×・>”+<y−y・)′, and π
5f(x,y)=
t-cosctan-Yukienda)g(x+y)=t,
5tn(tan-'-L-y!-9-)X-X,). Here, S is a constant related to the magnification rate.

If the coordinate system in which the relationship with the orthogonal coordinate system is defined by f and g is called the M1 coordinate system, then the relationship between the point X on the V=Vo line in the orthogonal coordinate system and the point U in the M1 coordinate system is the second The result is as shown in Figure (a). As can be inferred from this figure, M1
A figure drawn in the coordinate system is enlarged near (xo + yo), rapidly reduced as it moves away from there, and the entire area from a part on the orthogonal coordinate system to +ω is mapped within a unit circle with a diameter of 1. .

Also, another function, 0 1 f (x, y) = Htan-”-xOπ
If we call the coordinate system represented by S the M2 coordinate system, a figure drawn in the M2 coordinate system will be enlarged near (Xo+yO), rapidly contracted as it moves away from the point, and the entire figure on the orthogonal coordinate system will be expanded. is mapped into a square with side length 1.

If we call the coordinate system expressed by yet another function, the M3 coordinate system, a figure drawn in the M3 coordinate system has two sides, with the line connecting (x., yo) and (X+, y+) being the diagonal line. The rectangular area parallel to the X-axis is similarly enlarged by 8 times, and the other parts are reduced by t times in the X-axis direction and r times in the y-axis direction, and the entire target figure is
In other words, the diagonal line connecting (XO, YO) and (x+, y+) is Z
r, a rectangle with two sides parallel to the X axis is preserved as a similar shape.

FIG. 2(b) is a diagram showing the relationship between a point X on a line parallel to the X axis and a point U on the M3 coordinate system. As described above, the converted figure is enlarged in the part with a large slope near the center of the figure.

FIG. 3 is a diagram showing an example of a converted figure, and FIG.
) is the original figure, (b) is the M1 coordinate system, and (C) is the M2 coordinate system.
The coordinate system (d) is an example of transformation using the M3 coordinate system.

In the case of the M3 coordinate system, as is clear from the above function, the transformed figure is divided into nine regions as shown in Figure 4 depending on the transformation magnification, and each region is labeled a - d. As shown, it is one of four types of conversion magnification.

Their conversion ratios are as shown in the table below.

From this, as shown in FIG. 1(b), the conversion processing unit 5 calculates the conversion label a for the entire rectangular range whose diagonals are original figure (7) (Xo, YO) - (ni+, Y+). ,
2 Perform conversion using b, c, and d and store them in an appropriate memory as a figures 11 to (I figures 14. However, the center a area, which is a rectangle with (xo+Vo) (x+, y+) as its diagonal, It is assumed that the shapes, that is, the values of x+-xo and V+-Vo each take constant values.

Next, for example, when the synthesis processing unit 6 receives a designation of an arbitrary point in the target figure as a point (xo+yo), it creates an a figure 11 corresponding to a rectangle of a predetermined part of interest with that point as the lower left vertex.
The area is cut out to be the area a in FIG.
Cut out the area to make both areas shown in Figure 4, and create C figure 1 corresponding to the rectangular parts adjacent to the top and bottom of the part of interest.
By cutting out the area 3 to form both C areas in Fig. 4, and cutting out the areas of the d figure 14 corresponding to each of the remaining four corner rectangular parts to form the four dN areas in Fig. 4. , combine the transformed shapes. Therefore, according to this method, when the part of interest is moved, there is no need to generate a converted figure from the original figure, and the converted figure can be synthesized relatively quickly.

〔Effect of the invention〕

As is clear from the explanation in section A below, according to the present invention, when converting a figure and displaying the part of interest so that it is easy to see, while enlarging the part of interest so that it is easy to see, other peripheral parts are also displayed. Since continuity can be maintained and displayed simultaneously without being hidden, there is a significant industrial effect of improving the operability of graphic processing.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a diagram explaining an example of a conversion state, FIG. 3 is a diagram showing an example of a converted figure, and FIG. 4 is a diagram explaining the configuration of a converted figure. It is. 4 In the figure - ζ, 1 is the figure output section, 3 is the output both sides, 5 is the conversion processing section, 11 is the 8 figure, 13 is the C figure, 2 is the figure conversion section, 4 is the original figure, 6 is the composition processing section, 12 is 5 figures, 14 is (1 figure (C) Diagram showing the 1st example of conversion figure (A)

Claims (1)

[Claims] 1. It has a figure output section (1) and a figure conversion section (2), the figure output section (1) outputs a converted figure on a predetermined output screen (3), The conversion unit (2) performs a predetermined conversion process on the original figure (4) to generate the converted figure, and the conversion process enlarges and reduces the original figure at a conversion rate that is not uniform within the output screen. A graphic output processing method characterized by processing. 2. The conversion process is a conversion according to the following relationship, where the coordinates of the orthogonal coordinate system representing the original figure (4) are x and y, the coordinates after the conversion are u and v, and s is a constant. Graphical output processing method described. ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ ▲ There are mathematical formulas, chemical formulas, tables, etc. 2. The graphic output processing method according to claim 1, wherein the transformation is performed according to the following relationship, where x and y, coordinates after transformation are u and v, and s is a constant. u=1/π・tan^-^1(x-x_0/s)v=1
/π・tan^-^1 (y-y_0/s) 4. In the conversion process, the coordinates of the orthogonal coordinate system representing the original figure (4) are x and y, and the coordinates after the conversion are u, v, and s. 2. The graphic output processing method according to claim 1, wherein the conversion is performed according to the following relationship, where is a constant. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ ▲There are mathematical formulas, chemical formulas, tables, etc.▼ u={▲There are mathematical formulas, chemical formulas, tables, etc.▼However, X_0
≦x＜x_0 ▲There are mathematical formulas, chemical formulas, tables, etc.▼However, x_0≦x≦
x_1 ▲There are mathematical formulas, chemical formulas, tables, etc.▼However, x_1<x≦
X_1} v={▲There are mathematical formulas, chemical formulas, tables, etc.▼However, Y_0
≦y＜y_0 ▲There are mathematical formulas, chemical formulas, tables, etc.▼However, y_0≦y≦
y_1 ▲There are mathematical formulas, chemical formulas, tables, etc.▼However, y_1<y≦
Y_1} 5. It has a figure output section (1), a conversion processing section (5), and a composition processing section (6), and the figure output section (1) outputs the converted figure on a predetermined output screen, and performs the conversion. The processing unit (5) calculates the coordinates (X
The line connecting _0, Y_0) and (X_1, Y_1) is a diagonal line, and for a rectangular area whose sides are parallel to the coordinate axes, shape a (11) is enlarged by s times in the x- and y-axis directions, and The b figure (12) is enlarged by t times and s times in the y-axis direction, and the c figure (12) is enlarged by s times in the x-axis direction and r times in the y-axis direction.
13) and a d figure (14) enlarged by t times in the x-axis direction and r times in the y-axis direction, and the synthesis processing unit (6) generates a d-figure (14) enlarged by a factor of t in the x-axis direction and by a factor of r in the y-axis direction. When a first rectangular part of a shape is specified, a partial figure of the a figure (11) corresponding to the first rectangular part and a second rectangular part adjacent to the left and right with the same height as the first rectangular part. and each partial figure of figure (12) corresponding to the third rectangular part, respectively, and the first
Each partial figure of the c figure (13) which has the same width as the rectangular part and corresponds to the vertically adjacent fourth and fifth rectangular parts, respectively, and four pieces excluding the first to fifth rectangular parts. The converted figure is synthesized with each partial figure of the d figure (14) corresponding to each rectangular part, and the coordinates of both ends of the diagonal of the first rectangle are (x_0, y_0).
and (x_1, y_1), the above X_0, Y_0
, X_1, Y_1, r, s, and t are set so as to satisfy the formula shown in claim 4.