JPH0495171A - Graphic editing device - Google Patents

Abstract

PURPOSE:To point out the error of a graphic and to execute various information exchange with device at the time of editing the graphic by discriminating whether graphic information in a graphic information storage means satisfies a condition in a condition storage means or not. CONSTITUTION:A graphic information storage means 4 stores graphic information for showing a shape and a size of a graphic displayed on a graphic display means 1, and a position of the graphic, etc., on a display screen, a coordinate designating means 2 inputs the position of he graphic, and the position of this graphic is stored as a part of the graphic information in a graphic information storage means 4. A condition input means 3 inputs a condition to the graphic on the display screen as a logical expression, and the inputted condition is stored in a condition storage means 5. Subsequently, whether the graphic information in the graphic information storage means 4 satisfies the condition in the condition storage means 5 or not is decided, and a result of this discrimination is displayed on the display means 1. In such a way, various information exchange with device can be executed, and an error can be pointed out and corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an interactive computer system having a function of displaying figures, and particularly to a figure editing device for editing displayed figures.

[Background Art] In recent years, interactive computer systems that perform various tasks in an interactive manner have been widely used. This interactive computer system is configured using personal computers, workstations, etc., and includes a central processing unit that stores data, a central processing unit that performs necessary processing, a display device that displays processing results on a display screen, and a It is equipped with a keyboard and mouse (pointing input device) for inputting data, commands, etc., a printing device for outputting a hard copy of data as needed, an external storage device for storing data, etc. In such an interactive data system, when a necessary instruction is given using the keyboard or mouse, the response to this instruction is immediately reflected on the display screen.
By repeatedly issuing new instructions in response to this response, the processing result desired by the user can be obtained.

Some of these interactive computer systems have a function of displaying figures on a display screen, and various figures can be displayed at desired positions and in desired sizes. However, although various shapes can be edited freely, even if you make a mistake in inputting the placement, size, etc. of a shape, this error cannot be pointed out or automatically corrected, and the shape It could not be said that there was sufficient dialogue during the preparation of the project.

[Problem to be solved by the invention] As described above, although conventional interactive computer systems allow various shapes to be freely edited on the display screen, there is insufficient interaction during the creation of shapes. Therefore, even if the layout, size, etc. of a figure are incorrectly input, there is a problem in that the error cannot be pointed out or corrected automatically.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a graphic editing device that can point out and automatically correct errors that occur manually when erroneously arranging or sizing a graphic.

[Means for Solving the Problems] In the present invention, graphic information indicating a graphic to be displayed is stored in a graphic information storage means, a condition for this graphic is stored in a condition storage means, and the conditions in the condition storage means are stored in a graphic information storage means. The condition determining means determines whether the graphic information in the information storage means satisfies the condition, and the result of this determination is displayed on the display means.

In addition, in another aspect of the present invention, graphic information indicating a graphic to be displayed is stored in the graphic information storage means, and conditions for this graphic are stored in the condition storage means, and the conditions in the condition storage means are stored in the graphic information storage means. The condition determining means determines whether the graphic information in the graphic information storage means satisfies the condition, and if the condition determining means determines that the condition is not satisfied, the graphic information in the graphic information storage means is The information will be corrected using the information correction means.

C. According to the present invention, it is determined whether the graphic information in the graphic information storage means satisfies the condition in the condition storage means, and the result of this determination is displayed on the display means. Therefore, it is possible to have various kinds of dialogue.

According to another aspect of the present invention, it is determined whether the graphic information in the graphic information storage means satisfies the condition in the condition storage means,
If it is determined that the condition is not met, the graphic information is modified so that the condition is met, which facilitates the graphic editing process.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of a graphic editing device according to the present invention, and the device of this embodiment is applied to an interactive computer system. That is, the figure display means 1 in the figure corresponds to a display device such as a CRT, and the coordinate designation means 2 corresponds to a display device such as a CRT.
The condition input means 3 corresponds to a keyboard, a mouse, etc., the graphic information storage means 4 and the condition storage means 5 correspond to a storage device attached to the central processing unit, an external storage device, etc., and the condition determination means 6 corresponds to the central processing unit. Applies to.

The graphic information storage means 4 stores graphic information indicating the shape and size of the graphic displayed on the graphic display means 1, the position of the graphic on the display screen, etc. The coordinate specifying means 2 is for inputting the position of a figure, and this position of the figure is stored in the figure information storage means 4 as part of the figure information. The graphic display means 1 displays figures, messages, etc. based on the graphic information in the graphic information storage means 4. The condition input means 3 is for inputting a condition for a figure on the display screen as a logical formula, and the input condition is stored in the condition storage means 5.

The conditions input from the condition input means 3 and stored in the condition storage means 5 are, for example, as shown in the diagram of FIG. Here, conditions for confirming that one figure does not overlap with another figure on the display screen are exemplified, including condition (1) when the main figure to be determined is a rectangle; Condition (2) exists when the main figure to be determined is a line segment.

Condition (1) when the main figure is a rectangle is a coordinate system on the display screen as shown in Figure 3, with the origin at the upper left corner of the display screen, the horizontal direction as the X axis, and the vertical direction as the y axis. Once set, it will look like this:

First, if the opponent figure is a rectangle, (coordinate position W of the larger of the coordinate position of the upper left corner a1 of the main figure A and the coordinate position of the upper left corner b1 of the opponent figure B)> (the right side of the main figure A) The following condition is applied: the smaller of the coordinate position of the lower corner a2 and the coordinate position of the lower right corner b2 of the other figure B), and if this condition is not satisfied for both the X-axis and the y-axis, the main figure A and It overlaps with opponent figure B.

In addition, if the opponent figure is a line segment, the start point cl and end point c2 of the opponent figure C are not included in the main figure A, and the opponent figure C intersects each side of the main figure A. If this condition is not met, the subject figure A and the opponent figure C overlap.

On the other hand, when the main figure is a line segment, condition (2) is as follows.

First, if the opponent figure is a rectangle, the start point d1 and end point d2 of the main figure are included in the opponent figure E, but the main figure does not intersect with each side of the opponent figure E. This condition is applied, and if this condition is not satisfied, the subject figure and the opponent figure E overlap.

In addition, if the opponent figure is a line segment, the condition that the opponent figure F and the subject figure F do not intersect is applied, and if this condition is not met, the subject figure and the opponent figure F overlap. .

Next, the operation for editing a figure displayed on the figure display means 1 will be described according to the flowchart of FIG.

It is now assumed that a rectangular figure G and a rectangular figure H are displayed on the display screen as shown in FIG. 5(a). Here, by operating the coordinate specifying means 2, the coordinate position h2 is input as the position of the figure H (step 401).
, the graphic information storage means 4 updates the coordinate position h1 already stored as the position of the graphic H to the coordinate position h2 (step 4.2). At this time, the condition determining means 6 determines the graphic information (coordinate position h2) regarding the graphic H in the graphic information storage means 4.
It is determined whether the condition in the condition storage means 5 is satisfied or not, and if the condition is not satisfied, an error message is displayed on the graphic display means 1 (step 403). Here, if the error message is not displayed, the editing process is ended by operating the coordinate specifying means 2, step 404. yes), this editing operation ends. Also, if an error message is displayed, continue the editing process (step 404.no).
By repeating the operations from step 401, the coordinate position of figure H can be updated so that no error message is displayed.

The determination by the condition determining means 6 in step 403 will be described in more detail with reference to the flowchart of FIG.

The condition determining means 6 takes the figure H to be edited as the main figure, and since the main figure H is a rectangle, the condition (1) is read out from the condition storage means 5. Furthermore, the condition determining means 6 determines the condition (1) when the opponent figure G is a rectangle, that is, the larger of the coordinate position of the upper left corner of the main figure H and the coordinate position of the upper left corner of the opponent figure G. Step 601) Select the condition (coordinate position of the lower right corner of the main figure H and the coordinate position of the lower right corner of the partner figure G) (step 601), and based on this condition, select the condition It is determined whether or not H and the opponent figure G overlap (step 602). This judgment 17) As a result, the main figure H
and the opponent figure G do not overlap (step 603.y
es), the processing by the condition determining means 6 is ended. Also,
If the subject figure H and the opponent figure G overlap (step 603
．． No), the condition determining means 1 6 displays an error message "Two warning figures overlap" on the figure display means 1 as shown in FIG. 5(b) (step 604).

When moving a figure displayed on the display screen in this way, it is determined whether the figure satisfies predetermined conditions, and if the condition is not met, an error message is displayed. , can hold effective dialogues.

FIG. 7 is a block diagram showing another embodiment of a graphic editing device according to the present invention, which is constructed by adding graphic information modifying means 7 to the device shown in FIG.

In this embodiment, the operation for editing a figure is similar to that in the flowchart of FIG. 4, and the process of step 403 in this flowchart is performed according to the flowchart of FIG.

In other words, the condition determining means 6 determines the shape H to be edited.
Since the main figure H is a rectangle, the condition (1) is read from the condition storage means 5. Furthermore, the condition determining means 6 selects a condition in which the opponent figure G is a rectangle in the condition (1) (step 801), and determines whether or not the subject figure H and the opponent figure G overlap based on this condition. (step 802). As a result of this determination, if the subject figure H and the opponent figure G do not overlap (step 80
3, yes), the processing by the condition determining means 6 is ended.

Further, if the subject figure H and the opponent figure G overlap (step 80B, no), the condition determining means 6 notifies the figure information correcting means 7 that they overlap. When the graphic information modifying means 7 receives the notification from the condition determining means 6, it modifies the graphic information obtained from the graphic information storage means 4 according to a predetermined procedure, stores the modified graphic information in the graphic storage means 4, and stores the stored content. is updated (step 804).

The graphic information correction process in step 804 will be described in detail below.

First, when editing the flowchart shown in FIG. 4, the graphic information modifying means 7 monitors the graphic information in the graphic information storage means 4, and for example, when updating the position of the graphic H as shown in FIG. Original coordinate position h1 and updated coordinate position h
Take in 2.

On the other hand, the graphic information modifying means 7 waits for a determination notification from the condition determining means 6, and if it does not receive a notification that the subject graphic H and the opponent graphic G overlap, it processes the modification of the graphic information in the graphic information storage means 4. There is nothing to do. Further, upon receiving a notification that the two figures overlap, the figure information correction means 7 calculates a coordinate position h3 that divides the space between the original coordinate position h1 and the updated coordinate position 62 into two, and converts this coordinate position 1fh3 into the coordinate position It is stored in the graphic information storage means 4 as graphic information of the graphic H instead of h2.

Thereafter, the condition determining means 6 determines whether the subject figure H whose position has been changed to the coordinate position h3 and the partner figure G do not overlap, and if the two figures do not overlap, the result is shown in FIG. As shown in , the main figure H is displayed at the coordinate position h3.

Further, if it is determined that the subject figure H whose coordinate position h3 has been changed overlaps with the partner figure G, this fact is notified from the condition determining means 6 to the figure information correcting means 7. The figure information correction means 7 performs the figure information correction process again only when it receives a notification that the two figures overlap, and as shown in FIG. A coordinate position h4 for dividing into two is determined, and this coordinate position h4 is stored in the graphic information storage means 4 as graphic information of the graphic H instead of the coordinate position h3.

Thereafter, a new coordinate position that divides the original coordinate position h1 and the updated coordinate position into two is calculated until the two figures no longer overlap, and the new coordinate position when the two figures no longer overlap is calculated. The position is stored in the graphic information storage means 4 as the position of the graphic H and remains. Thereby, the main figure H and the opponent figure G can be prevented from overlapping, and the main figure H can be moved in the direction of the initially specified coordinate position h2 to the vicinity of the opponent figure.

However, if the two figures overlap even after updating the coordinate position a predetermined number of times, the update of the coordinate position is stopped and the original coordinate position h1 is used as the figure information of the main figure H in the figure information storage means. 4, the main figure H is not moved from its original position.

Note that here, the distance between the original coordinate position and the updated coordinate position is 2.
By repeating dividing and finding new coordinate positions, we can find the position of the main figure H such that the main figure H and the other figure G do not overlap, but this is not limited to this. When the main figure H is gradually moved in the direction of the designated coordinate position h2, the main figure H may be moved to a position where the main figure H and the counterpart figure G are in contact with each other.

In this way, if the graphic information does not satisfy a predetermined condition, the graphic information is modified so that it satisfies the condition, so that the graphic can be easily edited.

Note that in the above two examples, conditions for preventing two figures from overlapping are illustrated, but the present invention is not limited to this, and conditions for defining the size of one figure, lines, etc. The condition may be a condition for specifying the angle of a minute, a condition for specifying the length of a line segment, or the like. Alternatively, various conditions may be assigned to each figure so that one figure must satisfy the assigned conditions.

Further, the figure may be a rectangle or a line segment, but it may of course be a circle, an ellipse, a polygon, or the like.

[Effects of the Invention] As explained above, according to the graphic editing device according to the present invention, it is determined whether or not the graphic information in the graphic information storage unit satisfies the condition in the condition storage unit. Based on the determination, it is possible to point out errors in the figure, and it becomes possible to have various conversations when editing the figure.

Further, according to another figure editing device according to the present invention, when it is determined that the condition is not satisfied, the figure information is modified so that the condition is satisfied, so that the figure editing process is facilitated. .

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a graphic editing device according to the present invention, FIG. 2 is a chart showing conditions stored in the condition storage means shown in FIG. 1, and FIG. 3 is a diagram showing conditions stored in the condition storage means shown in FIG. Figure 4 is a flowchart used to explain the graphic editing operation in the device shown in Figure 1, and Figure 5 is a flowchart used to explain the conditions shown in Figure 1. FIG. 6 is a flowchart used to explain the determination process in the device shown in FIG. 1. FIG. 7 is a diagram illustrating a display mode when editing a figure by the device, and FIG. 7 is a diagram illustrating another figure editing method according to the present invention. A block diagram showing an embodiment of the device, FIG. 8 is a flowchart used to explain the determination process in the device shown in FIG. 7, and FIG. 9 is a diagram for modifying graphic information in the device shown in FIG. 7. FIG. 3 is a diagram used to explain processing. 1... Graphic display means, 2... Coordinate designation means, 3...
Condition input means, 4... Graphic information storage means, 5... Condition storage means, 6... Condition determination means, 7... Graphic information modification means.

Claims (2)

[Claims] (1) Graphic information storage means for storing graphic information indicating a graphic; display means for displaying the graphic based on the graphic information in the graphic information storage means; and condition storage means for storing conditions for the graphic. , characterized by comprising: condition determining means for determining whether or not the graphic information in the graphic information storing means satisfies the condition in the condition storing means; and display means for displaying the determination result by the condition determining means. A figure editing device that does. (2) a graphic information storage means for storing graphic information indicating a graphic; a display means for displaying the graphic based on the graphic information in the graphic information storage means; and a condition storage means for storing conditions for the graphic. , a condition determining means for determining whether or not the graphic information in the graphic information storage means satisfies the condition in the condition storage means; and when the condition determining means determines that the condition is not satisfied, the condition is A graphic editing device comprising: graphic information modifying means for modifying graphic information in the graphic information storage means so as to satisfy the following.