JPH03161869A - Graphic processor - Google Patents

Abstract

PURPOSE:To easily select a scaling mode by dividing a screen into nine sections by two horizontal lines and two vertical lines passing operation points on the four corners of a graphic element and selecting a prescribed scaling selecting mode and its direction in accordance with positional relation between each specified operation point and the divided area. CONSTITUTION:A divided area setting part 10 divides a screen into nine areas by straight lines and sets up four areas for determining the regulated scaling mode and its direction in accordance with the positional relation between each of nine divided areas and a reference point as shown in the figure. When an operator specifies an operation point 18 on the screen by a cursor, a reference position discriminating part 11 sets up the operation point 18 on the reference point of scaling. When the operator specifies a cursor position on the screen, a divided area discriminating part 12 decides which divided area selects the specified position and a scaling discriminating part 13 sets up the scaling mode in accordance with the regulated scaling mode allocated to each area. Consequently, the graphic scaling mode can easily be selected.

Description

[Detailed Description of the Invention] [Summary] A graphic processing device that allows easy operations for specifying the scaling mode and direction of a graphic, regarding a graphic processing device that has a function of specifying the scaling mode and direction of a graphic on a display screen. It is equipped with a figure data input means, a figure screen display means, and a figure processing means, and the figure processing means has two horizontal lines and two There is a division area setting section that sets a division area that divides a hundred planes into nine parts by vertical lines, a reference point determination section that determines any one specified operation point as a reference point, and a When another coordinate point is input, the coordinate point becomes 9.
A divided area determination unit that determines which of the divided areas the target figure is located in, and a divided area determination unit that determines which of the divided areas the target figure is located in, and expands or The image forming apparatus has an enlargement/reduction determination unit that determines whether to perform reduction, vertical enlargement or reduction, or similar enlargement or reduction of the target figure.

[Industrial Field of Application] The present invention relates to a graphic processing device having a function of specifying the mode and direction of scaling of a graphic on a display screen.

[Prior art]

When performing graphical processing on a display screen, it is often necessary to scale the graphic similarly or to scale it horizontally or vertically.

The fourth example shows how to enlarge/reduce figures on the conventional screen.
This will be explained using a diagram. FIG. 4(a) is an example of an enlarged/reduced figure when the figure is enlarged/reduced on the display screen.

In the figure, 41 is a graphical element to be scaled;
2 is a figure that is horizontally enlarged from the figure element 41, 43 is a figure that is similar to the figure element 4l, and 44 is a figure that is enlarged in a similar manner to the figure element 4l.
Shows a vertically expanded figure.

Figure (b) shows a first conventional operation method for enlarging or reducing a figure.

In the figure, 45 is a graphical element to be scaled; 46
indicates operation points for specifying the reference position for enlarging/reducing the graphical element, and is displayed at four locations around the graphical element (■, ■, ■, ■).

The conventional operation method 1 is to (1) first select a figure to be enlarged or reduced, and then specify an operation point on the screen using the cursor 47;

The operating point on the opposite side of the specified operating point and the direction of scaling becomes the reference for scaling.

For example, in the figure, conventional operation method 1 will be described for the case of enlarging in the horizontal direction on the right side.

First, (1) select operating point 2; In this case, the operating point on the opposite side of the direction of scaling with respect to the specified operating point 2
is the standard for scaling.

Next, (2) the "horizontal direction" is designated on the screen using the cursor on the enlargement/reduction selection mode screen for whether to enlarge or reduce the image in a similar manner or in the horizontal or vertical direction.

Furthermore, (3) specify the position to be enlarged on the screen using the cursor.

As a result of the above operations, a graphic obtained by enlarging the graphic element 45 in the horizontal direction is displayed in the area indicated by the dotted line in the figure.

Next, the second conventional scaling method will be explained with reference to FIG.

In the figure, 46 is a graphical element to be enlarged or reduced.

In the conventional scaling method 2, eight operating points are displayed around the graphic element 46 to specify the scaling mode and direction. ■ to ■ in the figure are operating points.

The operating method is to select one of the eight operation points displayed around the figure to be enlarged or reduced, and to determine the enlargement/reduction mode, direction, and reference point for enlargement/reduction.

In the figure, ■, ■, ■, ■ are operating points when scaling in a similar manner, ■, ■ are operating points when scaling in the vertical direction, and ■, ■ are operating points when scaling in the horizontal direction. This is the operating point.

The case of expanding in the horizontal direction will be explained using figures.

First, (1) determine the reference position for enlarging to the right side in the horizontal direction, and select the operating point ■ on the screen to specify the enlargement mode.

Next, (2) the position to be enlarged is specified on the screen using the cursor 48;

Through the above operations, a graphic obtained by enlarging the graphic element 46 in the horizontal direction is displayed in the area indicated by the dotted line in the figure.

[Problem to be solved by the invention]

Conventional operation method 1 described above requires a large number of operations for scaling, which takes time, and conventional operation method 2 requires a large number of operation points, making it difficult to distinguish the operation points when the figure is small. It may become difficult to scale the image.

[Means for Solving the Problems] The present invention provides two horizontal lines and two vertical lines passing through operation points displayed at the four corners of a graphic element on a display screen for a figure to be enlarged or reduced. Divide the screen into nine areas by
The enlargement/reduction mode selection operation can be made easier by selecting the enlargement/reduction selection mode and direction defined by regulations according to the positional relationship between one specified operating point and one specified divided area. I made it.

The object of the present invention is to provide a graphic processing device that facilitates such graphic scaling operations. The principle of the present invention will be explained with reference to FIG.

FIG. 1(a) is a basic configuration diagram of the present invention. In the figure, 1 is a means for inputting figure data such as a mouse or a keyboard; 2 is a display means for displaying figures based on the input data;
3 is a CPU that processes the graphic data inputted by the input means 1 according to a processing program; 4 is a memory that stores graphic data, a processing program, etc.; 5 is a graphic processing means consisting of a program, etc. that processes the input data; 10 is a divided area setting section that sets the screen into nine divided areas by two-tree lines in the horizontal and vertical directions passing through the operation points displayed at the four corners of the graphical element on the display screen; A reference position determination unit 12 reads the specified cursor position and sets a reference position for scaling; 12 reads the position specified by the cursor on the screen after specifying the reference position to determine the specified divided area; The divided area determination unit 13 is an enlargement/reduction determination unit that determines the mode and direction of expansion/reduction based on the positional relationship between the reference position determined by the reference position determination unit 11 and the divided area determined by the divided area determination unit 12.

[Operation] The operation of the basic structure of the present invention will be explained with reference to FIGS. 1(b) and 1(c). Refer to Figure (a) if necessary.

FIG. 3B shows an example of divided regions set by the divided region setting section 10. FIG.

In the figure, l4 is a graphical element, 15, 16, 17, 18
are operating points, straight lines ■ and ■ are horizontal lines passing through operating points 17, 18 and 15, 16, respectively, and ■ and ■ are operating points 1, respectively.
A vertical line 19 passing through 5, 18 and 16, 17 is a cursor for specifying the position of the operating point and setting the reference point for scaling.

A case will be described in which the illustrated operation point 18 is designated as the reference point for scaling.

The divided area setting unit 10 divides the screen into nine parts as shown in the figure using straight lines (1) to (2). Then, as shown in the figure, four areas are determined for the nine divided areas, the enlargement/reduction mode and direction defined by the positional relationship with the reference point.

If the area shown is selected as the divided area,
The enlargement/reduction mode and direction are determined based on the relationship between the diagonal line (■) connecting the enlargement/reduction reference point 18 and the operating point l6 and the straight line (■).

That is, if the image is in region A shown in the figure, which is closer to the straight line than the diagonal line ■, the vertical reduction mode is set, and if it is in the region 2, which is closer to the straight line ■ than the diagonal line connecting the reference point 18 and the operating point 16. In this case, the horizontal reduction mode is set, and in the case of areas B and C that are closer to the diagonal lines ■ than the straight lines ■ and ■, a similar scaling mode is selected.

When the illustrated area (3) is selected as the divided area, a mode is selected in which the graphic elements are similarly enlarged or reduced in each direction. If area ■ is selected, select a mode for vertically scaling the graphic elements in each direction. If area ■ is selected, select a mode for horizontally scaling the graphic elements in each direction.

Next, the specific operating method and basic precepts of the present invention will be described for the case where the operating point l8 is selected as the reference point for scaling.

The operator first specifies the operation point 18 on the screen with a cursor. The reference position determination unit l1 sets the operating point l8 as the reference point for scaling. Next, when the operator specifies the position of the cursor on the screen, the divided area determination unit l2 determines which divided area the specified position has been selected, and the enlargement/reduction determination unit l3 assigns it to each slope. Set the scaling mode according to the specified scaling mode.

The flow of the operation of the above-mentioned divided area determination unit 12 and enlargement/reduction determination unit 13 is shown in FIG. 3(c).

-1 1- In the above explanation, the case where the operating point 18 is selected as the reference point for scaling is explained, but even when other operating points are selected as the reference point, the relative positions of areas ■ to ■ The relationship is the same, and the scaling mode defined in relation to the reference point assigned to each area is also the same.

Furthermore, the above explanation regarding the enlargement/reduction modes assigned to areas (1) to (2) is merely an example, and the present invention is not limited thereto.

The patterns shown in each divided area in FIG. 2B are shown for convenience of explanation and are not displayed on the screen.

〔Example〕

An embodiment of the present invention will be explained with reference to FIGS. 2 and 3.

In the figure, 21 is a keyboard for inputting characters and graphic data; 22 is a mouse input means for inputting graphic data;
3 is a display means for displaying a figure based on input data;
4 is a disk device for storing character and graphic data; 25 is a blinker for printing characters and graphics; 26 is for processing character and graphic data inputted from the keyboard 21 and mouse input means 22 according to a processing program. 27 is a RAM that stores graphic data, processing programs, etc.; 28 is a ROM that stores control programs, basic graphic data, etc.; 29 is a graphic processing means consisting of programs that process input data; and 30 is an enlarged A graphic element recognition unit that recognizes a specified figure to be reduced; 3l is a graphic element 4 recognized by the graphic element recognition unit 30;
An operating point setting section 32 for setting operating points at the corners divides the screen into nine parts by two lines each in the horizontal and vertical directions passing through the operating points displayed at the four corners of the graphical elements on the display screen. 33 is a reference tiger that reads the position of the cursor designated on the screen and sets the standard position for scaling; 34 is a determination unit that reads the position of the cursor specified on the screen and sets the divided area; A divided area determination unit reads the position designated by the cursor and determines the designated divided area, 35 is a reference outline, and the reference position 13 determined by the determination unit 33 and the divided area determined by the divided area determination unit are An enlargement/reduction determination unit that determines the mode and direction of enlargement/reduction according to predetermined rules according to the positional relationship; and 40 is a coordinate input point determination unit that determines the position of a coordinate input point for specifying a divided area. be.

The operation of each part in the graphic processing means 29 is as follows.

When the operator specifies a figure to be enlarged or reduced on the screen, the figure element recognition section 30 checks the target figure data, and the operation point setting section 31 sets operation points at the four corners around the figure element. .

Next, the divided area setting unit 32 sets divided areas using two horizontal lines and two vertical lines passing through the operating point. Therefore, when the operator specifies an operating point on the screen with a cursor to serve as a reference point for scaling, the reference point determination unit 33 sets the reference point for scaling.

Next, when the operator inputs coordinates by specifying the position of the cursor on the screen in order to designate the divided area, the coordinate input point determination unit 40 determines the coordinate position, and as a result, the divided area determination unit 34 reads the specified partition. The enlargement/reduction determination unit 35 sets the enlargement/reduction mode and the direction of enlargement/reduction according to a predetermined rule according to the positional relationship between the reference point and the divided area.

FIG. 3 shows an example of divided areas for scaling according to the embodiment of the present invention.

In all of the cases shown in FIGS. (a), (b), (c), and (d), the enlargement/reduction selection mode defined for each region (1) to (2) is the same.

As in Figure 1, the divided regions are typically shown in Figure (
2 passing through the operating points set at the four corners of the graphic element shown in a)
The book's horizontal line (straight line ■, ■) and two vertical lines (straight line, ■
) is determined by dividing the screen.

In addition, specify the operating point with the cursor shown in Figure (a) to set the reference point for scaling, and in relation to the reference point, define the divided areas into four areas as shown in the figure, and connect each area to the reference point. The selection of the enlargement/reduction mode predetermined in relation to the above is also the same as in the case of FIG. For example, in a region, the scaling mode is determined by the relationship between the diagonal line ■ connecting the reference point of the coordinate input point and its diagonal point and the horizontal line ■, or the relationship between the straight line ■ and the vertical line ■. Similar scaling modes, region (2) determines the vertical scaling mode, and region (2) determines the horizontal scaling mode.

In each figure, (a) is the case where the lower right operating point is specified as the reference point for scaling, and (b), (c), (d)
This is the case where the upper right, lower left, and upper left operating points are specified as the reference points for scaling, respectively.

〔Effect of the invention〕

According to the present invention, in a figure processing device, the enlargement/reduction mode of the figure can be specified based on the positional relationship between the area divided by two horizontal lines and two vertical lines and the specified coordinates. Improves operability.

[Brief explanation of the drawing]

FIG. 1(a) is a basic configuration diagram of the present invention. FIG. 1(b) is an explanatory diagram of graphical elements and divided regions in the basic structure of the present invention. FIG. 1(C) is a flowchart of enlargement/reduction determination according to the basic structure of the present invention. FIG. 2 is a diagram showing an embodiment of the present invention. FIG. 3 shows divided regions according to an embodiment of the present invention. FIG. 4(a) is a general explanatory diagram of enlarging/reducing a figure. FIG. 4(b) is an explanatory diagram of a conventional figure enlargement/reduction method 1. FIG. 4(c) is an explanatory diagram of a conventional figure enlargement/reduction method 2. In FIG. In FIG. 1, l two input means, 2: display means, 5: graphic processing means, 10: divided area setting section, Il: reference position determination section, 17-12: divided area determination section, l3: enlargement/reduction determination. Department.

Claims (2)

[Claims] (1) Comprising a figure data input means, a figure screen display means, and a figure processing means, the operation points to be selected as reference points for scaling are displayed at the four corners of the figure to be scaled, and the specified operation is performed. In a graphic processing device that scales a graphic horizontally, vertically, and similarly in relation to a point and a coordinate point on the display screen designated next, the graphic processing means is configured to expand or reduce the shape of a graphic in the horizontal and vertical directions and in a similar manner. A dividing area setting section that sets a dividing area that divides the screen into nine parts by two horizontal lines and two vertical lines that pass through each, and a reference point that determines a specified arbitrary operation point as a reference point. a determination unit; a divided area determination unit that determines in which of the nine divided areas the coordinate point is located when another coordinate point is input following the input of designation of the reference point; In the relationship between the reference point and the divided area, the target figure can be enlarged or reduced in the horizontal direction, or vertically, or the target figure can be similarly enlarged or reduced, based on predetermined rules. 1. A graphic processing device comprising: an enlargement/reduction determination unit that determines whether to perform processing. (2) The enlargement/reduction determination section divides the other coordinate points that are input following the input of the reference point designation by two horizontal lines and two vertical lines that pass through two of the operation points at the four corners. If it is located in the central part of the nine divided areas, the relationship between the reference point at the position of the other coordinate points above, the diagonal line connecting the diagonal point of the reference point, and the horizontal line and vertical line passing through the reference point. , to determine whether to enlarge or reduce the target figure in the horizontal direction, to enlarge or reduce it in the vertical direction, or to enlarge or reduce the target figure in a similar manner, based on predetermined rules. Claim 1 characterized by
The graphic processing device described in .