JPH04282774A - Interactive graphic processing system - Google Patents

Abstract

PURPOSE:To improve the operability and performance of this interactive graphic processing system by displaying the area of a specified shape recognized by the system simultaneously with the input of operator's specification to a shape to be edited to inform the area to the operator. CONSTITUTION:This system is constituted of a display device 40 for displaying existing shape data, a shape specifying device 20 to be used for picking picture points for inputting a new shape specified by an operator and inputting the shape already formed and displayed on the device 40 and a graphic processor 10 for processing the whole CAD system. For instance, a code such as an arrow for indicating the direction of a recognized shape is added to the center of the a shape to be edited and displayed. Thus information relating to the direction of the shape is immediately added to the specified shape and displayed by a code, a color change or flashing correspondingly to the operator's shape specification input to inform the information to the operator. Thereby the operator can know the input of mis-specification before the execution of processing.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention enables
CAD (Computer) that performs operations such as updating the shape.
This invention relates to an interactive graphic processing system such as a computer-aided design system, and is particularly suitable for improving operability by immediately displaying the recognition result of an updated part of a shape specified by an operator. This invention relates to a graphic processing system.

0002

[Prior Art] In an interactive graphic processing system such as a CAD system, lines, circles, arcs, etc. displayed on a display screen,
When editing shapes such as ellipses, elliptical arcs, free curves, character strings, etc., the operator uses a mouse, etc. to align the cursor on the screen with the shape to be edited and click to input the specified shape. . At this time, the system displays the shape specified by the operator on the display screen so that the operator can easily understand it. For example, JP-A-1
As described in JP-A-112466 and JP-A-2-83671, adding a symbol to the center of a specified shape, changing the color or brightness of the entire specified shape, or
It is displayed by blinking. In this way, an interactive graphic processing system such as a CAD system shows the results recognized by the system in response to specifications by the operator.

[0003] In such an interactive graphic processing system such as a CAD system, processing that requires the directionality of a designated shape is performed, for example, when trimming a straight line with another shape that intersects with the straight line. Sometimes. However, in such cases, conventional interactive graphic processing systems cannot indicate the direction of the shape that the operator is conscious of. Therefore, the operator could not confirm the direction recognized by the system on the display screen. For example, when trimming a straight line with another shape intersecting it, the system could not indicate which side of the intersection to trim.

[0004] In this manner, in the conventional interactive graphic processing system, when specifying the end points of a shape element, the operator can determine which side has been selected or which side will be deleted during trimming. This cannot be known at the time of picking (specifying endpoints), and must be confirmed after the editing process is executed. If the system's designation recognition is incorrect, the operator has to repeat the selection and designation operation from the beginning, resulting in problems such as poor operability.

[0005]

The problem to be solved is that the operator cannot check the quality of the recognition result of the system before executing the process. The purpose of the present invention is to immediately display the result recognized by the system in response to the input of the shape designation from the operator with consideration to the direction.
It is an object of the present invention to provide an interactive graphic processing system that solves these problems of the prior art and makes it possible to improve operability and performance.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the interactive graphic processing system of the present invention includes a designated position detection processing unit that detects the position on the screen of a designated input from an operator, and A shape recognition processing section recognizes the shape to be operated based on the position on the screen detected by the detection processing section, and a specified input detected by the specified position detection processing section on the shape recognized by the shape recognition processing section. A recognition part display processing unit is provided to recognize the part of the shape to be manipulated based on the position, and display the recognized part on the screen with a difference from other parts of the shape. The part of the shape that is the target of the recognized operation in response to the specified input from the user,
It is characterized by displaying on the screen and notifying the operator before executing the operation process.

[0007]

[Operation] In the present invention, when an operator specifies a target shape on the screen to edit a shape that has been created in advance and is displayed on the screen, the specified input position on the shape is From the positional relationship, the part of the shape that the operator is conscious of that is the object of operation, that is, the direction of the shape that the operator is conscious of is recognized. Then, for example, a symbol such as an arrow indicating the directionality of the recognized shape is added to the center of the shape to be edited and displayed. Alternatively, the symbol, color change part, or blinking part is displayed offset in that direction. In this way, in response to the operator's shape specification input, information about the directionality of the shape is immediately added to the specified shape by symbols, color changes, or flashing, and is displayed to inform the operator. . This allows the operator to know about erroneous designation inputs before executing the process, and to avoid executing processes based on erroneous designation inputs.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the configuration of a CAD system according to the present invention.

The CAD system of this embodiment includes a display device 40 for displaying existing shape data, a screen point pick for inputting a new shape by the operator, and data already created and displayed on the display device 40. The configuration includes a shape specifying device 20, which is used for picking, etc., for inputting operations on a given shape, and a graphic processing device 10, which performs processing of the entire CAD system including display processing of recognition results related to the present invention. The graphic processing device 10 also performs a designated position detection process that detects the position of the pick point 62 on the screen 60 of the display device 40 that is input from the central processing control unit 30 that controls the processing of the entire CAD system, and the shape designation device 20. Part 51, pick point 62
A shape recognition processing section 52 that recognizes a shape 61 in the vicinity of , a recognized part display processing section 53 that recognizes and displays a shape portion designated by the operator, and a shape data storage section 54 that stores data of each shape. have

With this configuration, the CAD of this embodiment
Through the processing operation of the graphic processing device 10, the system responds to the directionally-oriented shape designation input by the operator via the shape designation device 20, and generates, for example, a symbol having the meaning of the directionality. An arrow 64 is added to the center of the shape 61, or a symbol, a color change part, or a blinking part is displayed on the display device 40 by shifting it in that direction.

[0012] That is, for editing processing, the user
When the vicinity of the shape 61 (pick point 62) displayed on the screen 60 of the display device 40 is picked using the shape designation device 20, the designated position detection processing unit 51 of the graphic processing device 10
Accordingly, the position on the screen 60 corresponding to this pick point 62 is detected. Then, the shape recognition processing unit 52 searches for a shape in the vicinity of this detected position (pick point 62) and recognizes the shape 61 selected and specified by the operator. Next, the recognized part display processing unit 52 recognizes the end point 63 on the side closer to the pick point 62 in the recognized shape 61, and
In the center of the shape 61, there is an arrow 6 which is a symbol indicating its direction.
4 is added and displayed.

As described above, in the CAD system of this embodiment, after the operator inputs a designation, the recognized direction can be immediately displayed to notify the operator. Note that the display processing of shape recognition results by the CAD system of this embodiment can be used for shape instructions in trimming processing that divides a certain shape by another shape that intersects with it, or for updating the length of a certain shape. It can also be applied to shape instructions when specifying whether to extend or shorten a side.

Next, the display control operation of shape recognition results according to the present invention in the CAD system of this embodiment will be explained using a flowchart.

FIG. 2 is a flowchart showing the processing operation of the CAD system in FIG. 1 according to the present invention.

The figure processing device 10 shown in FIG. 1 when the user uses the shape specifying device 20 shown in FIG. This is a processing operation.

First, via the shape specifying device 20 of FIG.
When a pick designation is input from the operator (step 201), the designated position detection processing unit 51 of FIG. 1 detects the position on the screen corresponding to this pick point (step 202). Then, the shape recognition processing unit 52 in FIG. 1 searches for a shape in the vicinity of this detected position, and recognizes the searched shape as the specified shape selected and designated by the operator (
Step 203). Next, the recognized part display processing unit 5 of FIG.
2, in this recognized specified shape, the end point on the side closer to the pick point is recognized (step 204), and a symbol such as an arrow indicating the direction is added and displayed in the center of the specified shape (step 205). ).

[0018] With the symbols thus displayed, the operator can immediately confirm on which side of the indicated shape the end point recognized by the CAD system is located. Note that the display method for indicating directionality is not limited to arrows. A method of displaying directionality will be described below.

FIG. 3 is an explanatory diagram showing a specific example of the directionality display method according to the present invention of the CAD system shown in FIG.

In FIG. 3(a), the pick point 71 of the shape 70
A symbol 72 is displayed off-centered at one end point on the side closer to , indicating the directionality recognized by the system. Figure 3 (
In b), the line width 73 on the end point side of the shape 70 is changed and displayed based on the position of the pick point 71 to show the directionality recognized by the system. In addition, in FIG. 3(c), based on the position of the pick point 71, the line type on the end point side of the shape 70 indicated by the solid line is changed to a broken line 74 and displayed, indicating the directionality recognized by the system. . In FIG. 3(d), the end point side of the shape 70 is displayed in a blinking manner 75 based on the pick point 71, indicating the directionality recognized by the system. In addition to this, a method of changing the color or brightness of the end point portion of the shape may be used. In addition, the line type, line width, and
Techniques for changing blinking, color, brightness, etc. are conventional techniques that are not directly related to the present invention, and therefore will not be described here.

As explained above using FIGS. 1 to 3, according to the CAD system of this embodiment, when specifying a shape when directionality is required, the operator picks the shape and immediately The direction recognized by the system is displayed. This allows the operator to confirm the validity of the operation before performing execution processing based on an erroneous operation.

[0022]

According to the present invention, the area of the specified shape recognized by the system is displayed and notified to the operator at the same time as the operator inputs the specified shape for the shape to be edited, thereby allowing shape specification with directionality in mind. This eliminates the need for execution processing based on erroneous operations when a request is made, making it possible to improve the operability and performance of the interactive graphic processing system.

[0023]

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the configuration of a CAD system according to the present invention.

FIG. 2 is a flowchart showing the processing operation of the CAD system in FIG. 1 according to the present invention.

FIG. 3 is an explanatory diagram showing a specific example of a directionality display method according to the present invention of the CAD system in FIG. 1;

[Explanation of symbols]

10 Graphic processing device 20 Shape designation device 30 Central processing control section 40 Display device 51 Specified position detection processing section 52 Shape recognition processing section 53 Recognition part display processing unit 54 Shape data storage section 60 Screen 61 Shape 62 Pick point 63 End point 64 Arrow 70 Shape 71 Pick point 72 symbol 73 Line width 74 Broken line 75 Blinking

Claims (1)

[Claims] Claim 1. An interactive graphic processing system that displays an arbitrary part of a shape displayed on a screen by manipulating the shape based on specified input from an operator in an interactive format, wherein the specified input from the operator is A designated position detection processing means for detecting a position on the screen, a shape recognition processing means for recognizing a shape to be subjected to the above operation based on the position on the screen detected by the designated position detection processing means, and the shape recognition processing. Based on the position of the specified input detected by the specified position detection processing means on the shape recognized by the means, a part of the shape to be operated is recognized, and the recognized part is separated from other parts of the shape. a recognized part display processing means for displaying a recognized part on the screen with a difference of An interactive graphic processing system characterized in that the information is displayed on the screen to notify the operator.