JPH11102446A - Graphics input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save manpower, which improving flexibility in the drawing and editing jobs by complementing the attributes at the positions of vertexes which are defined by a vertex position acquisition means and also at the positions designated via a position information acquisition means and drawing a graphic form on a drawing screen based on these complemented attributes. SOLUTION: A position information acquisition means 11 secures a man- machine interface for designation of the position of a drawing screen. A vertex position acquisition means 12 defines the size and the position as a combination of plural vertexes of grids to be shown on the drawing screen. The attributes other than the size and position decide the positions of those vertexes corresponding to the positions designated via the means 11 for a graphic form to be drawn by the gridding that has been defined previously. Then a drawing means 13 complements the attributes at the positions of vertexes defined by the means 12 and also the positions designated via the means 11 and then draws a graphic form on the drawing screen based on the complemented attributes. Furthermore, a drawing information generation means 14 generates information on the graphic form that is drawn by the means 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphics input device which supports drawing based on a graphic user interface system and generates image information indicating a desired graphic.

[0002]

2. Description of the Related Art In recent years, the processing speed of an information processing apparatus such as a personal computer has been remarkably increased, and various kinds of package software provided for supporting drawing and design by executing such an information processing apparatus have been used. ing. FIG. 18 is a diagram illustrating a configuration example of a conventional graphics input device.

In FIG. 1, a processor 70 includes a keyboard (KB) 71 and a mouse 72, an image scanner 73, a display (CRT) 74, a printer 75,
The hard disk device 76 is connected. In the graphics input device having such a configuration, the processor 70 controls the graphics input via the keyboard 71 and the mouse 72.
The user interface is used to show graphic display attributes (color, shading, line type to be applied, line thickness, coloring pattern (hunting, gradation, etc.)), fonts when characters are involved, and other combinations. ) And a graphic element (any of the definitions of the graphic determined based on the shape modeling) are determined, and the graphic indicated by the graphic display attributes and the graphic elements is output to the display screen of the display 74 as appropriate. Image information indicating the figure is generated and recorded on the hard disk device 76.

[0004] Further, the processor 70 has, as a database, individually all of the items which can be set in advance among the items constituting the above-mentioned graphic display attributes and graphic elements for each graphic which can be drawn. By the way, processor 7
0 indicates that the first point is specified under the graphic user interface described above when a rectangle is to be drawn in the non-grid adsorption mode in which no grid is formed in the process of the graphic input processing. (Figure 19 (a))
And the coordinates (x1, y1) indicating the first point are temporarily stored (FIG. 20 (1)). Further, when a second point is designated in the same manner, the processor 70 acquires coordinates (x2, y2) indicating the second point, and the coordinates (x2, y2) and the coordinates (x
1, y1), two other points (hereinafter, referred to as a "third point" and a "fourth point", respectively) indicating a rectangle having a diagonal line connecting these first and second points. ) (X1, y2) and (x2, y1) (hereinafter, such a process is referred to as “complementary coordinate calculation process”) (FIG. 20 (2)).
The processor 70 draws a rectangle connecting the first to fourth points indicated by these four coordinates in the corresponding area of the display screen of the display 74 (FIG. 19B), and precedes the hard disk device 76. Then, image information indicating the rectangle is written in the predetermined image file opened (FIG. 20 (3)).

Further, when a rectangular drawing is similarly performed in the grid suction mode, the processor determines coordinates (x1, y1) and (x1, y1) indicating the first point and the second point based on the procedure described above. x2, y2) are obtained (FIGS. 20 (4), (5)), and these coordinates are individually normalized to convert them to coordinates (X1, Y1) and (X2, Y2) indicating the vertices of the nearest grid. (FIG. 19 (6)). The processor determines these coordinates (X1, Y
1) and (X2, Y2) are subjected to the aforementioned complementary coordinate conversion process to obtain (X1, Y2) and (X2, Y1) (FIG. 20 (7)). (FIG. 19 (c), FIG. 20 (8)).

When an ellipse is to be drawn in the non-grid suction mode, the processor 70 sets the coordinates (x1, y1) of the first point and the second point as shown in FIG. For a virtual rectangle in which the position of the center and one vertex are given by the coordinates (x2, y2) of the point, the coordinates (x2, 2y2-y1), (2x1
-X2, y2) and (2x1-x2, 2y2-y1) are calculated (FIG. 2).
2 (a)) and draws an ellipse inscribed in the rectangle on the basis of these five coordinates (FIG. 22 (b)), and stores the ellipse in a predetermined image file opened prior to the hard disk device 76. Write image information indicating an ellipse (FIG. 22)
(c)).

Further, when an ellipse is similarly drawn in the grid suction mode, the processor 70
As shown in FIG. 21 (b), the coordinates (x1, y1) and (x2, y2) indicating the first point and the second point are normalized to match the coordinates of the nearest grid (X1, Y1). ), (X2, Y
2) (FIG. 22 (d)), these coordinates (X1, Y1),
Based on (X2, Y2), the coordinates (X
2, 2Y2-Y1), (2X1-X2, Y2), (2X1-X2, 2Y2
−Y1) to determine five coordinates (FIG. 22 (e)) except for the point (FIG. 22 (b),
(c)) is performed.

If the drawing of a circle is to be performed in the non-grid suction mode, the processor 70
As shown in FIG. 3 (a), the drawing of a circle whose center is located at the coordinates (x1, y1) of the first point and whose coordinates (x2, y2) of the second point are located on the arc is shown in FIG. (FIG. 24A).

Further, when a circle is drawn in the grid suction mode in the same manner, as shown in FIG. 23 (b), the processor 70 sets the coordinates (x1, After the coordinates (X1, Y1) and (X2, Y2) are obtained by normalizing (y1) and (x2, y2) (FIG. 24B),
Drawing is performed (FIGS. 23B and 24C). The procedure of the process to be performed by the processor 70 in the process of drawing the ellipse and the circle as described above is as shown in FIGS. 22 and 24, respectively. The positions of the first and second points according to the type of figure to be drawn, the presence / absence of coordinates to be calculated based on the coordinates of these points, and differences in arithmetic operations involved in the calculation are easy. In order to be able to judge, it is shown with shading.

The image scanner 73 and the printer 75 read an image indicating the background on which the above-described drawing is to be performed, an image to be appropriately included in the drawing process, and an image indicated by the generated image information. However, since the present invention is not directly related to the present invention, a detailed description thereof will be omitted here.

[0011]

By the way, in the above-mentioned conventional example, a graphic display attribute such as a position and a size is set for a graphic to be drawn, or the position and the size are adjusted in a process of an operation for adjusting the position and the size. Since the operation of designating a plurality of points such as the first point and the second point described above is indispensable, the efficiency of drawing is reduced, and the degree of fatigue of the operator in the drawing work is high.

[0012] Since either one of the grid suction mode and the non-grid suction mode can be applied to each figure, restrictions are imposed on the degree of freedom of drawing and the flexibility of editing.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a graphics input device capable of improving the flexibility of work involved in drawing and editing and saving labor.

[0014]

FIG. 1 is a block diagram showing a first embodiment of the present invention;
It is a principle block diagram of the invention of 5 described.

According to the first aspect of the present invention, there is provided a combination of position information acquiring means 11 which takes a man-machine interface for specifying the position of a drawing surface, and a plurality of vertices of a grid whose size and position are to be displayed on the drawing surface. Is defined as, and attributes other than its size and position are defined in advance, and the drawing to be drawn by grid conversion is performed.
Vertex position obtaining means 12 for obtaining the positions of these vertices corresponding to the positions given via position information obtaining means 11
And a position of the vertex obtained by the vertex position obtaining means 12 and a position given through the position information obtaining means 11 to complement the attribute, and a drawing means 13 for drawing a graphic on a drawing surface based on the attribute. And a drawing information generating means 14 for generating information indicating a figure drawn by the drawing means 13.

According to a second aspect of the present invention, in the graphics input device according to the first aspect, a position obtained by the vertex position obtaining means 12 and a figure to be drawn under a grid arrangement on a drawing surface. Vertex position inspecting means 21 for determining whether or not the attribute is consistent with the attribute of the vertex position obtaining means 12 when the result of the determination made by the vertex position inspecting means 21 is false. The position obtained as a result is rounded to a value for which the result of the determination is true, and is drawn.

According to a third aspect of the present invention, in the graphics input device according to the first or second aspect, the conditions and the application of the grid to the position obtained by the vertex position obtaining means 12 are described. A vertex position updating unit 31 that takes a man-machine interface related to updating of a drawing surface area occupied by a figure while adapting to a desired one of the conditions that are not performed, and a vertex updated through the vertex position updating unit 31. Redrawing means 32 for redrawing the figure based on the attribute while applying the position.

FIG. 2 is a block diagram showing the principle of the present invention. According to a fourth aspect of the present invention, among the attributes of a graphic whose size and position are defined as a combination of a plurality of vertices of a grid displayed on a drawing surface, for some or all of the positions of these vertices, A vertex position updating unit 41 that takes a man-machine interface relating to updating of an area occupying the drawing surface based on a desired one of a condition to which gridding is applied and a condition not to be applied, and a vertex position updating unit 41 Redrawing means 42 for applying the updated vertex position and redrawing the figure based on the attribute, and redrawing information generating means 43 for generating information indicating the figure to be redrawn by the redrawing means 42 And characterized in that:

According to a fifth aspect of the present invention, there is provided the graphics input device according to any one of the first to fourth aspects, wherein a grid of a drawing surface is set in accordance with a figure to be drawn or redrawn. It is characterized by including a grid arrangement setting means 51 for taking a man-machine interface for setting the arrangement. In the graphics input device according to the first aspect, the vertex position obtaining means 12
Is defined as a combination of a plurality of vertices of the grid whose size and position are to be displayed on the drawing surface, and attributes other than these size and position are defined in advance,
For a figure to be rendered as a grid, the position of the vertex of the grid corresponding to the position given under the man-machine interface performed by the position information obtaining means 11 is obtained. The drawing unit 13 complements the above-described attribute with the position of the vertex obtained in this way and the position given via the position information obtaining unit 11, and draws a figure on a drawing surface based on the attribute. . Further, the drawing information generating means 14 generates information indicating the figure.

That is, as long as a grid to be applied to the rendering of a figure to be rendered is set in advance, a single position is given to the drawing surface via the position information acquiring means 11 at that time. A conventional example in which a desired figure having a size and an arrangement adapted to a position is automatically drawn, so that it is necessary to specify a plurality of positions for specifying a center point, a vertex, a focus, a curvature, and other attributes at the time of drawing. Compared with, the efficiency of drawing is surely enhanced.

In the graphics input device according to the second aspect of the present invention, in the graphics input device according to the first aspect, the vertex position inspection means 21 obtains a vertex position under an arrangement of a grid on a drawing surface. It is determined whether or not the position obtained by the means 12 matches the attribute of the graphic to be drawn. When the result of the determination is false, the drawing means 13 draws the position obtained by the vertex position obtaining means 12 by rounding it to a value for which the result of the determination is true.

That is, even if the attribute complemented by the combination of the positions obtained by the vertex position obtaining means 12 has a deviation that is not allowed under the grid arrangement, the deviation of the desired figure is reduced. This is automatically performed while the operation is being performed, so that flexibility in the arrangement of the grid and the designation of the position on the drawing surface is secured. In the graphics input device according to the third aspect of the present invention, in the graphics input device according to the first or second aspect, the vertex position updating unit 31 may determine whether the position obtained by the vertex position obtaining unit 12 is A man-machine interface is used for updating the area of the drawing surface occupied by the figure based on one of the conditions to which the grid is applied and the conditions to which the grid is not applied. The redrawing unit 32 redraws the figure based on the attribute while applying the position of the vertex updated via the vertex position updating unit 31.

That is, the positions of the vertices indicating the size and arrangement of the figures are set under any of the conditions in which the grid is applied and the conditions in which the grid is not applied, so that the sizes and positions of these figures are flexible in redrawing. And is updated with high accuracy. In the graphics input device according to the fourth aspect of the present invention, the vertex position updating means 41 includes the attributes of the graphic whose size and position are defined as a combination of a plurality of vertices of the grid displayed on the drawing surface. A man-machine interface for updating the area occupying the drawing surface based on one of the conditions where gridding is applied and the condition where gridding is not applied, for some or all positions of the plurality of vertices . Redrawing means 4
2 applies the vertex position updated in this way,
In addition, the graphics are redrawn based on the attributes described above. Further, the redrawing information generating unit 43 generates information indicating a figure to be redrawn by the redrawing unit 42.

That is, the positions of the vertices indicating the size and arrangement of the figure under any of the conditions where gridding is applied and the conditions where gridding is not applied, without applying the invention of claims 1 to 3 Is set, the size and position of the graphic indicated by the drawing information generated by the graphics input device to which these inventions are not applied are also updated flexibly and accurately at the time of redrawing.

According to a fifth aspect of the present invention, in the graphics input device according to any one of the first to fourth aspects, the grid arrangement setting means 51 may perform drawing or redrawing. A man-machine interface for setting the arrangement of the grid on the drawing surface according to the figure to be processed is taken. That is,
Since the interval, shape, and arrangement of the grids to be displayed on the drawing surface are appropriately updated according to the figure to be drawn or redrawn, the flexibility of the drawing or redrawing is enhanced.

[0026]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG.
FIG. 3 is a diagram showing an embodiment corresponding to the invention described in FIG. In the figure, components having the same functions and configurations as those shown in FIG. 18 are denoted by the same reference numerals, and description thereof is omitted here.

The difference between this embodiment and the conventional example shown in FIG.
Is provided. Note that the keyboard 71, the mouse 72, and the processor 70A correspond to the position information obtaining unit 11, the vertex position obtaining unit 12, the vertex position updating units 31, 41 in the correspondence between the present embodiment and the block diagrams shown in FIGS. The processor 70A and the display 74 correspond to the drawing unit 1 and the grid arrangement setting unit 51.
3, redrawing means 32 and 42 and redrawing information generating means 4
3, the processor 70A has the vertex position checking means 21
Corresponding to

FIG. 4 is an operation flowchart (1) of the present embodiment corresponding to the first and fifth aspects of the present invention. FIG.
FIG. 4 is a diagram for explaining the operation of the present embodiment corresponding to the first and fifth aspects of the present invention. Hereinafter, the operation of the present embodiment corresponding to the first and fifth aspects of the present invention will be described with reference to FIGS.

As shown in FIGS. 6A and 6B, the processor 70A calculates the coordinates (x-0, y-0), (x-
1, x-1),..., (X-n, y-n) are registered in advance in the grid coordinate table 61, and the "suction mode" indicates whether the mode is the grid suction mode or the non-grid suction mode.
In addition, a grid parameter table 62 in which the distances Dx and Dy of the individual grids in the X and Y directions and the coordinates (x-0, y-0) of the origin of the grid are registered in advance in a predetermined area of the main memory. To have.

The processor 70A includes a keyboard 7
1 or under the man-machine interface performed via the mouse 72, the interval Dx,
When an update instruction is given for Dy or the coordinates of the origin (x-0, y-0), the grid parameter table 62 is updated as instructed (FIG. 4 (1)) and registered in the grid parameter table 62. The coordinates of the vertices located at intervals Dx and Dy in the X direction and the Y direction, respectively, are generated with the coordinates of the origin as the starting point, and the coordinates are registered in the grid coordinate table 61 (FIG. 4 (2) )).

In the grid attraction mode, when a rectangle is to be drawn, the processor 70A sets the coordinates of the coordinates registered in the grid coordinate table 61 at the time when the first point is designated in the same manner as in the conventional example. , Four coordinates (here, for simplicity, (X1, Y1), (X2, Y2), (X1, Y2), (X2 , Y1)
Suppose that ) (FIG. 4 (3)).

The points indicated by these four coordinates are shown in FIG.
, The processor 70A determines the coordinates (X1, Y1), (X2, Y2), (X1, Y2), (X1, Y2) of these vertices since they correspond to the vertices of a rectangular grid including the first point. A rectangle composed of four straight lines connecting X2 and Y1) is drawn (FIG. 4 (4)), and image information indicating the rectangle is generated in the same manner as in the conventional example (FIG. 4 (5)).

FIG. 7 is an operation flowchart (2) of the present embodiment corresponding to the first and fifth aspects of the present invention. FIG.
FIG. 5 is a diagram (2) for explaining the operation of the present embodiment corresponding to the first and fifth aspects of the present invention. Hereinafter, an operation when an ellipse is drawn in the grid suction mode in the present embodiment corresponding to the first and fifth aspects of the present invention will be described with reference to FIGS.

As described above, the processor 70A operates the grid parameter table 6 under a man-machine interface performed via the keyboard 71 or the mouse 72.
2 is updated (FIG. 7 (1)), and a column of vertex coordinates adapted to the result of the update is registered in the grid coordinate table 61 (FIG. 7 (2)). Further, when the drawing of the ellipse is requested, the processor 70A, when the first point is designated in the same manner as in the conventional example, sets the first point among the coordinates registered in the grid coordinate table 61. 4 in ascending order of distance from coordinates (x1, y1)
Coordinates (here, (X1, Y1), (X2, Y
2), (X1, Y2), and (X2, Y1). ) (FIG. 7 (3)).

As shown in FIG. 8, the processor 70A regards the area sandwiched by these four coordinates as a rectangular area circumscribing the ellipse to be drawn, and determines the coordinates of the center of the area. ((X1 + X2) / 2, (Y1 + Y2) / 2)
(Hereinafter referred to as “center coordinates”) (FIG. 7).
(Four)). Further, the processor 70A draws an ellipse based on the above-described four coordinates and the center coordinates in the same manner as in the conventional example (FIG. 7 (5)), and converts the image information indicating the ellipse in the same manner as in the conventional example. Is generated (FIG. 7 (6)).

As described above, according to the present embodiment, the size and position of the rectangle or ellipse to be drawn are set based only on the position of the first point as long as the grid is properly arranged in advance. Therefore, the drawing efficiency can be increased as compared with the conventional example. FIG. 9 is an operation flowchart (1) of the present embodiment corresponding to the second aspect of the present invention.

FIG. 10 is a diagram (1) for explaining the operation of the present embodiment corresponding to the second aspect of the present invention. Hereinafter, the operation of the present embodiment corresponding to the invention described in claim 2 will be described with reference to FIGS. 3, 9, and 10. FIG. The processor 70A is given an instruction to update the above-mentioned interval Dx, Dy or the coordinates (x-0, y-0) of the origin by the operator under a man-machine interface performed via the keyboard 71 or the mouse 72. The grid parameter table 62 is updated as instructed (FIG. 9 (1)), and starting from the coordinates of the origin registered in the grid parameter table 62 in the X and Y directions at positions Dx and Dy, respectively. A column of coordinates of the vertices to be generated is generated, and the columns of these coordinates are stored in the grid coordinate table 6.
1 (FIG. 9 (2)).

In the grid suction mode, if a square is to be drawn, the processor 70A specifies the coordinates (x1, y1) of the first point when the first point is specified in the same manner as in the conventional example. Is temporarily stored (FIG. 9 (3)), and it is determined whether or not the intervals Dx and Dy registered in the grid parameter table 62 are equal. Further, if the result of the determination is true, the processor 70A sets the four coordinates (X) in the same manner as in the embodiment corresponding to the first and fifth aspects of the present invention.
(1, Y1), (X2, Y2), (X1, Y2), (X2, Y1) (FIG. 4)
(3)) And a square sandwiched between these four coordinates is drawn as one mode of a rectangle (FIG. 4 (4)), and image information indicating the square is generated (FIG. 4 (5)).

However, as shown in FIG. 10, when the result of the above-described determination is false, the processor 70A sets the four coordinate values in the same manner as in the first and fifth embodiments. (X1, Y1), (X2, Y2), (X1, Y2), (X2, Y
1) (FIG. 9 (4)) and the center coordinates ((X1 + X2) / 2,
(Y1 + Y2) / 2) is calculated (FIG. 9 (5)). Further, the processor 70A selects one of the intervals Dx and Dy having a smaller value (hereinafter, referred to as “interval Dm” for simplicity) (FIG. 9 (6)), and ( (X1 + X2 + Dm)
/ 2, (Y1 + Y2 + Dm) / 2), ((X1 + X2-Dm) / 2,
(Y1 + Y2 + Dm) / 2), ((X1 + X2-Dm) / 2, (Y1 +
Y2-Dm) / 2), ((X1 + X2 + Dm) / 2, (Y1 + Y2-D
The four coordinates indicated by m) / 2) are calculated (FIG. 9 (7)).

Further, the processor 70A draws a square sandwiched by the points indicated by these four coordinates as one mode of a rectangle (FIG. 9 (8)), and generates image information indicating the square (FIG. 9 (8)). FIG. 9 (9)). FIG. 11 is a diagram showing an operation flowchart (2) of the present embodiment corresponding to the second aspect of the present invention.

FIG. 12 is a diagram (2) for explaining the operation of the present embodiment corresponding to the second aspect of the present invention. Hereinafter, with reference to FIG. 3, FIG. 11 and FIG. 12, the operation in the case where a circle is drawn in the grid suction mode in the present embodiment according to the second aspect will be described.

The processor 70A operates the grid parameter table 6 as described above under the man-machine interface performed via the keyboard 71 or the mouse 72.
2 is updated (FIG. 11 (1)), and a column of vertex coordinates adapted to the result of the update is registered in the grid coordinate table 61 (FIG. 11 (2)). Further, when a drawing of a circle is requested, the processor 70A temporarily stores the coordinates (x1, y1) of the first point when the first point is designated in the same manner as in the conventional example (FIG. 11 (3)) and determine whether the intervals Dx and Dy registered in the grid parameter table 62 are equal.

Further, when the result of the determination is true, the processor 70A sets the four coordinates (X1, Y1), in the same manner as in the embodiment according to the first and fifth aspects of the present invention.
(X2, Y2), (X1, Y2) and (X2, Y1) are selected (FIG. 7 (3)),
In addition, a circle inscribed in the square sandwiched by these four coordinates is drawn as one mode of an ellipse (FIGS. 7 (4) and (5)).
Image information indicating the circle is generated (FIG. 7 (6)).

However, as shown in FIG. 12, when the result of the above-described determination is false, the processor 70A sets the four coordinates in the same manner as in the first and fifth embodiments. (X1, Y1), (X2, Y2), (X1, Y2), (X2, Y
1) (FIG. 11 (4)) and the center coordinates ((X1 + X2) /
2, (Y1 + Y2) / 2) is calculated (FIG. 11 (5)). Further, the processor 70A determines that the distances Dx and Dy
One of the smaller values Dm is selected (FIG. 11 (6)), and
((X1 + X2 + Dm) / 2, (Y1 + Y2 + Dm) / 2), ((X1
+ X2-Dm) / 2, (Y1 + Y2 + Dm) / 2), ((X1 + X2
-Dm) / 2, (Y1 + Y2-Dm) / 2), ((X1 + X2 + Dm)
/ 4, (Y1 + Y2-Dm) / 2) are calculated (FIG. 11 (7)).

The processor 70A draws a circle inscribed in the virtual rectangular grid indicated by these four coordinates as one mode of an ellipse (FIG. 11 (8)), and displays image information indicating the circle. Is generated (FIG. 11 (9)). As described above, according to the present embodiment, as long as the grid is properly arranged in advance, even if the grid is arranged at uneven intervals on the drawing surface, the square or the circle to be drawn is Is set based only on the position of the first point, so that the drawing efficiency is improved as compared with the conventional example.

FIG. 13 is an operation flowchart of the present embodiment corresponding to the third and fourth aspects of the present invention. Less than,
The operation of this embodiment according to the third and fourth aspects of the present invention will be described with reference to FIGS. The difference between this embodiment and the embodiment corresponding to the first, second, and fifth aspects of the present invention is that the position and size of a desired graphic that has already been drawn are updated (hereinafter, referred to as “redraw”). ) Is in the following processing procedure for specifying coordinates to be applied.

For a figure to be redrawn, a point to be updated when the position or size is changed (for example,
It corresponds to any of the four vertices that make up the rectangle. ) (Hereinafter referred to as a “moving point”), whether the figure is drawn in the non-grid suction mode or the grid suction mode, can be set in these modes via the keyboard 71 and the mouse 72. Of which is specified as desired.

Further, for the moving point specified in this way, the position of an alternative point to be applied at the time of redrawing (hereinafter, referred to as "alternative point") is specified. Note that the position of the above-mentioned moving point and the substitute point of the moving point is identified by the processor 70A in accordance with a drag-and-drop operation performed via the mouse 72.

The mode (one of the non-grid suction mode and the grid suction mode) to be applied to the alternative point is determined, for example, by using the keyboard 71 in parallel with the above-described drag-and-drop operation. CTR
As a result of determining whether or not the “L” key is pressed,
Processor 70A identifies.

The processor 70A operates the moving point of any of the already drawn figures (here, for simplicity, under the above-described graphic user interface method).
Assume that the position on the drawing surface is indicated by coordinates (xt, yt). ), The position of the alternative point (here, for simplicity, it is assumed to be indicated by coordinates (xs, ys)) is recognized, and the coordinates (x
(s, ys) is captured and stored (FIG. 13 (1)), and it is determined whether or not the non-grid suction mode is applied (FIG. 13 (2)).

When the result of the determination is true, for example, when the figure to be redrawn is a rectangle, an ellipse, a square, and a circle, the processor 70A performs the operations shown in FIGS. 15 (a), FIG. 16 (a) and FIG. 17 (a)
As shown in FIG. 13, it is recognized that an instruction to update the coordinates (xt, yt) of the moving point to the coordinates (xs, ys) of the alternative point has been given (FIG. 13 (3)).

However, if the result of the determination is false, the processor 70A sets the coordinates (xs, xs) of the alternative point in the column of coordinates registered in the grid coordinate table 61 described above.
The coordinates (Xs, Ys) having the minimum distance to (ys) are obtained (FIG. 13 (4)). For example, when the figure to be redrawn is a rectangle, an ellipse, a square, or a circle, each of the coordinates is shown in FIG. (b), FIG. 15 (b), FIG. 16 (b) and FIG. 17 (b), the coordinates (xt, yt) of the moving point described above should be updated to the coordinates (Xs, Ys). It recognizes that the instruction has been given (FIG. 13 (5)).

Further, the processor 70A calculates the coordinates (xt, yt) and the coordinates (xs, ys) (or (Xs, Y) among the points included in the object representing the graphic to be redrawn.
s)) based on the direction of the vector formed as the starting point and the ending point, and the point whose position is to be updated in conjunction with the moving point based on the graphic display attributes and graphic elements of the figure (hereinafter referred to as “interlocking point”). ) And the directions and displacements at which the positions of these interlocking points should be updated are extracted from the components of the vector (FIG. 13 (6)).

Further, the processor 70A calculates the updated values of the coordinates based on the directions and displacement amounts extracted in this manner for all the interlocked points (FIG. 13 (7)), applies the updated values, and applies the moving points. Coordinates of the alternative point (xs, ys)
(Or (Xs, Ys))
4 (a), (b), FIG. 15 (a), (b), FIG. 16 (a), (b) and FIG.
Redrawing is performed as shown by a bold line on either side of (a) or (b) (FIG. 13 (8)).

Of the processing performed by the processor 70A for performing such redrawing, the processing of erasing a previously drawn figure and the processing of drawing an alternative figure are the same as those of the alternative. This is the same as the conventional example except that the non-grid suction mode and the grid suction mode are applied in combination to a plurality of points included in the object representing the figure, and thus detailed description is omitted here.

As described above, according to the present embodiment, the coordinates of a plurality of points included in an object can be set in either the non-grid suction mode or the grid suction mode as long as each graphic matches the unique graphic display attribute. Even if it is specified by, redrawing is performed reliably. Therefore, the flexibility in updating the size and arrangement can be increased as compared with the conventional example in which only one of the non-grid suction mode and the grid suction mode can be applied for each figure.

In this embodiment, one of the non-grid suction mode and the grid suction mode can be freely applied to a desired point indicating a graphic to be redrawn as an object. Is not limited to such redrawing, and for newly drawn figures,
These modes may be appropriately combined and applied to individual points as long as they match the graphic display attributes.

Also, in the present embodiment,
A graphics input device in which the invention described in claim 3 is applied to the embodiment applied to the invention described in item (1) is shown, but, for example, none of claims 1, 2, and 5 is applied. The present invention is also applicable to a graphics input device provided that the format of image information indicating an image to be redrawn is in an editable format or has means for converting the image information into such a format. It is possible.

Furthermore, in each of the above-described embodiments, the grid arrangement is appropriately updated according to the type of figure to be drawn or redrawn. For example, when the drawing surface is divided into a plurality of layers. May be set in advance with a different grid arrangement for each of these layers, or FIG. 6 (a)
As shown by dotted lines, different grid arrangements are registered in advance in the grid coordinate table 61 for each type of figure, and among the pages of the grid coordinate table 61,
Responsiveness may be improved by appropriately selecting a page to be applied (indicating a grid to be displayed on the drawing surface).

Also, in each of the above-described embodiments, the figures to be drawn and redrawn are limited to rectangles, squares, ellipses, and circles only. However, the size and position are appropriately set, and the figure display attribute is set. If given, polygons and any other graphic elements can be similarly drawn and redrawn. Furthermore, in each of the above-described embodiments, the coordinates are rounded while the shape of the graphic to be drawn or redrawn is maintained, but a combination of coordinates according to the grid arrangement is defined as a graphic display attribute. If any parameter is inconsistent, the coordinates may be rounded in a direction that avoids and reduces the degree of the inconsistency, regardless of the parameter. .

Further, in each of the above-described embodiments, the difference between the arrangement of the grid and the pixel on the display surface and the pitch are not described at all. However, as long as the drawn figure is displayed with desired accuracy, the pixel is not affected. The arrangement may be set based on a square lattice, a triangular lattice, a hexagonal lattice, or any other lattice, and the pitch or shape of the grid may be any.

Further, in each of the above-described embodiments, the means for enabling the position and the interval of the origin of the grid on the drawing surface to be variable are provided. If it is permissible that the grid arrangement is common, the positions and intervals of these origins need not be updated at all. In each of the above-described embodiments, the position of the vertex of the grid where the first point is located is specified according to the specified first point. If the relative position to the first point is uniquely given based on the display attribute, any position on the drawing surface or any grid vertex position may be applied instead of these vertex positions.

[0063]

As described above, according to the first aspect of the present invention, it is necessary to specify a plurality of positions for specifying a center point, a vertex, a focal point, a curvature, and other attributes at the time of drawing as compared with the conventional example. , And the efficiency of the drawing is reliably increased. Also,
According to the second aspect of the present invention, the flexibility regarding the arrangement of the grid and the designation of the position on the drawing surface is ensured.

Further, according to the third aspect of the present invention, the size and position of the graphic to be redrawn are updated flexibly and accurately at the time of redrawing. According to the fourth aspect of the present invention, it is possible to redraw a graphic indicated by drawing information generated by a graphics input device to which the first to third aspects of the present invention are not applied. At the time of drawing, the size and position are updated flexibly and accurately.

Further, according to the invention described in claim 5, the flexibility of drawing and redrawing is enhanced. Therefore, in the image processing system to which these inventions are applied, for a desired figure, input of coordinate information and editing of numerical information are efficiently and accurately performed in various forms, and the working environment is improved and cost is improved. Can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the principle of the present invention.

FIG. 2 is a principle block diagram of the invention according to claims 4 and 5;

FIG. 3 is a diagram showing an embodiment corresponding to the first to fifth aspects of the present invention.

FIG. 4 is an operation flowchart (1) of the present embodiment corresponding to the first and fifth aspects of the present invention.

FIG. 5 is a diagram (1) for explaining the operation of the present embodiment corresponding to the first and fifth aspects of the present invention;

FIG. 6 is a diagram showing a list of information related to a grid.

FIG. 7 is an operation flowchart (2) of the present embodiment corresponding to the first and fifth aspects of the present invention.

FIG. 8 is a diagram (2) for explaining the operation of the present embodiment corresponding to the first and fifth aspects of the present invention;

FIG. 9 is an operation flowchart (1) of the present embodiment corresponding to the invention described in claim 2;

FIG. 10 is a diagram (1) for explaining the operation of the present embodiment corresponding to the invention described in claim 2;

FIG. 11 is an operation flowchart (2) of the present embodiment corresponding to the invention described in claim 2;

FIG. 12 is a diagram (2) for explaining the operation of the present embodiment corresponding to the invention described in claim 2;

FIG. 13 is an operation flowchart of the present embodiment corresponding to the third and fourth aspects of the present invention.

FIG. 14 is a diagram (1) for explaining the operation of the present embodiment corresponding to the third and fourth aspects of the present invention;

FIG. 15 is a diagram (2) for explaining the operation of the present embodiment corresponding to the third and fourth aspects of the present invention.

FIG. 16 is a diagram (3) for explaining the operation of the present embodiment corresponding to the third and fourth aspects of the present invention;

FIG. 17 is a diagram (4) illustrating the operation of the present embodiment corresponding to the third and fourth aspects of the present invention.

FIG. 18 is a diagram illustrating a configuration example of a conventional graphics input device.

FIG. 19 is a diagram illustrating a process of drawing a rectangle.

FIG. 20 is a diagram showing a procedure of a rectangular graphic input process in a conventional example.

FIG. 21 is a diagram showing a process of drawing an ellipse.

FIG. 22 is a diagram showing a procedure of an ellipse graphic input process in a conventional example.

FIG. 23 is a diagram showing a process of drawing a circle.

FIG. 24 is a diagram illustrating a procedure of a circle graphic input process in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Position information acquisition means 12 Vertex position acquisition means 13 Drawing means 14 Drawing information generation means 21 Vertex position inspection means 31, 41 Vertex position update means 32, 42 Redraw means 43 Redraw information generation means 51 Grid arrangement setting means 61 Grid coordinates Table 62 Grid parameter table 70, 70A Processor 71 Keyboard (KB) 72 Mouse 73 Image scanner 74 Display (CRT) 75 Printer 76 Hard disk drive

Claims (5)

[Claims] 1. A position information acquisition unit that takes a man-machine interface for specifying a position of a drawing surface, and a size and a position are defined as a combination of a plurality of vertices of a grid to be displayed on the drawing surface. Vertex position obtaining means for obtaining the positions of these vertices corresponding to the positions given via the position information obtaining means, for a figure in which attributes other than the position are to be defined and which are to be rendered by gridding, A drawing unit that complements the attribute with the position of the vertex obtained by the position obtaining unit and the position given via the position information obtaining unit, and draws the graphic on the drawing surface based on the attribute; Graphics input means for generating information indicating a figure drawn by the drawing means. apparatus. 2. The graphics input device according to claim 1, wherein the position obtained by the vertex position obtaining unit matches the attribute of the graphic to be drawn under the arrangement of the grid on the drawing surface. Vertex position inspecting means for determining whether the position is obtained by the vertex position obtaining means when the result of the determination performed by the vertex position inspecting means is false. A graphics input device for drawing by rounding to a value for which is true. 3. The graphics input device according to claim 1, wherein the position obtained by the vertex position obtaining means is set to a desired one of a condition to be applied with gridding and a condition not to be applied. A vertex position updating unit that takes a man-machine interface related to updating of the drawing surface area occupied by the figure while adapting to one side, and based on the attribute while applying the position of the vertex updated via the vertex position updating unit. A graphics input device comprising: a redrawing unit for redrawing the graphic. 4. A grid is applied to a part or all of positions of a plurality of vertices among attributes of a graphic whose size and position are defined as a combination of a plurality of vertices of a grid displayed on a drawing surface. A vertex position updating unit that takes a man-machine interface related to updating of an area occupying the drawing surface based on a desired one of a condition to be applied and a condition that is not applied, and a vertex updated by the vertex position updating unit. Redrawing means for applying a position and redrawing the figure based on the attribute; and redrawing information generating means for generating information indicating a figure to be redrawn by the redrawing means. A graphics input device. 5. The graphics input device according to claim 1, wherein a man-machine is involved in setting a grid arrangement on a drawing surface according to a figure to be drawn or redrawn. A graphics input device comprising a grid arrangement setting means for taking an interface.