JPS61223987A - Pick system - Google Patents

Abstract

PURPOSE:To reduce the pick operating time by applying control so as to change sequentially a pick graphic form by designation when plural graphic forms overlapped with the graphic form to be picked or in the vicinity. CONSTITUTION:A graphic form to be displayed is stored in a segment buffer (SB) 4 in the defined order in a form of a command. The graphic form stored in the SB 4 is displayed on a graphic display (GD) 1 via a display converter (GDP) 5 by the command from a CPU 6. When a graphic command is required for deletion, moving copy or coordinate command of the graphic form, a tablet (TB) 2 is used to apply pick while observing the graphic form displayed on the GD 1. In this case, the designation whether the pick by an aperture or the pick by the shortest distance is commanded by a function key (FK) 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a graphic processing system, and more particularly to a pick method suitable for a pick operation for specifying a graphic in %.

[Background of the invention]

Generally, the shape pick is COMPUTERGRAPHI
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A pick method is used in which a figure that fits within a rectangle is specified, as seen in RE System. At this time, if there are multiple rectangular shapes, the shape with the highest priority is picked, and in order to pick other shapes,
The disadvantage is that you have to change the priority order when picking. Furthermore, when picking a figure that is located at the shortest distance, there is a drawback that if a plurality of figures are located at exactly the same distance, the intended figure may not be selected.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to solve the drawbacks of the conventional method and provide a picking method that can pick a desired figure from a crowded figure with a simple operation.

[Summary of the invention]

In order to achieve the above purpose, when the pick operation is performed once, the address of the segment name buffer where the picked shape is stored is memorized, and the address of the segment data buffer in which the picked shape is stored is memorized, and the address of the picked shape is further Pick processing is performed from the address, and in the case of picking by aperture 1
tti is.

- Find a shape that fits within the aperture, and in the case of the shortest distance shape pick, find a shape at the same distance, and if the desired shape is still not found, wait until the desired shape is picked. Repeat the above operation and pick the desired shape.

That is, the present invention uses a device that picks a figure that is located at the shortest distance from specified coordinates or in the vicinity thereof, and if there are a plurality of figures that are near the figure to be picked or that overlap the figure, the device picks the figure sequentially according to the specification. The present invention is characterized in that a target figure can be picked by controlling the figure to change.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be explained in detail using the drawings.

Figure 1 is a diagram for explaining an example of a system configuration.

In Figure 1, 1 is a graphic display (hereinafter abbreviated as GD) for displaying figures, 2 is a tablet (hereinafter abbreviated as TB) for giving coordinate values, pick instructions, etc., and 3 is for displaying status switching 1, etc. 4 is a segment buffer (hereinafter referred to as SB) that stores figures; 5 is a display conversion device (hereinafter referred to as GDP) that performs coordinate conversion and pick operations for display; 6
indicates a processing device (hereinafter abbreviated as CPU) that controls these devices using a control program.

The figures to be displayed are stored in the form of commands in the SB4 in the order in which the figures are defined.

The format of the command is the type of figure, such as a circle or line segment, and the center, radius, and starting point required for display.

It consists of values such as the end point. The figures stored in SBJ are transferred to GD via GDP5 according to instructions from CPU6.
IK is displayed. The operator performs various operations while looking at the figures displayed on the GD1. At this time, you can delete or move the shape.

If you need figure instructions for copying or coordinate instructions,
Use TB2 to point (pick) the shape. T
When a pen is moved on the BZ, its coordinates are displayed as a cursor on the GDI via the CPU 6. The operator moves the pen while watching this cursor, brings the cursor near the figure he or she wants to pick, and instructs the operator to pick a figure by pressing the pen down. At this time, FK5 specifies whether the pick is to be performed using an aperture or the shortest distance.

Figure 2 is a diagram for explaining the difference between an aperture pick and a distance pick. Figure 2+a+ shows the K aperture pick. This is a method of picking a figure that falls within a rectangle a certain distance from the input point, and in this case, the figure marked ■ is picked.

The distance pick is shown in Figure 2 141. Calculates the distance from the input point to each shape and picks the shape with the shortest distance. The shape in this case is picked.

Figure 3 is a diagram for explaining an example of picking when a plurality of figures are included in the aperture, and Figure 5 is a flowchart showing processing for Figure 3. With 3 spears, the shapes ■, ■,
■ is included in the pick aperture, and the button inside 8Ba is a figure.

It is assumed that they are defined in the order of . First, a shape is picked and echoed (blinking, etc.). At this time, the program saves the address of the picked figure on the SBJ (SOO). The operator looks at this echo and issues a pick change instruction if an unintended figure has not been picked. In this case, this change instruction is assigned to one key of FK3. When the operator presses this pick change instruction key, the program will set the saved SB address.504
), start the hardware (GDP5) again (
506). In GDP5, S from the specified address
The contents of B4 are read (550), a figure that fits within the rectangle is found (552.degree. 556), the address of the figure on SB4 is set (554), and an interrupt is generated to the CPU6. If there is no shape within the rectangle, display the end (
558). In the program, after accepting the interrupt,
Determine whether the shape has been picked (508);
In case of termination, notify the operator to that effect. If it is picked, an echo display is performed (510), the SB address at the time of busyness is saved (512), and instructions for the next operator are given (514). If a pick change instruction is given, the above operation is repeated (and if a pick change instruction other than the pick change instruction is given), the figure being pick-echoed at that time is determined as the pick figure.

Figure 4 is a diagram for explaining an example of distance picking when there are a plurality of figures with the same distance, and Figure 16 is a flowchart for the process shown in Figure 4. For the sake of simplicity in FIG. 16, it is assumed that one of the figures at the same distance has already been picked, and the flowchart of the processing is omitted. In the 4th figure, the shapes are ■ and ■.

If the shapes ■ are defined in SB4 in this order, the figure ■ is picked first and echo-displayed.

The operation for changing the picked shape is exactly the same as for aperture picking, and the only difference in the flowchart is that the hardware determines whether the picked shapes are at the same distance. Yes (610
). In addition, in the case of distance pick, the reason for finding the shape inside the aperture using hardware is to speed up the processing.
Distance calculation may be performed for all figures within the SBJ.

According to this embodiment, a pick operation for picking a crowded part of a figure and a pick operation for an intended figure among completely overlapping figures can be easily performed by pressing the pick change key.

〔Effect of the invention〕

As explained above, according to the present invention, the picking operation when picking a crowded part of a figure, and the picking operation of the intended figure among completely overlapping figures, can be easily performed by pressing the pick change key. In order to be able to do
The picking operation time can be significantly reduced, and the effect of improving operability can be obtained.

[Brief explanation of drawings]

Figure 1 is a diagram to explain an example of the system configuration, Figure 2 is a diagram to explain the difference between an aperture pick and a distance pick, and Figure 3 is an example of a pick when there are multiple shapes in the aperture. Figure 4 is a diagram for explaining an example of picking when there are multiple figures at the same distance in distance pick, Figure 5 is a flowchart for the process shown in Figure 3, and Figures 1 and 26 are 4 is a flowchart for the processing shown in FIG. 4; DESCRIPTION OF SYMBOLS 1...Graphic display, 2...Tablet, 3...Function key, 4...Segment buffer, 5...Display conversion device, 6...Processing device.

Claims (1)

[Claims] 1. In a device that picks a figure at or near the shortest distance from specified coordinates, if there are multiple figures near or overlapping the figure to be picked, the picked figures are changed sequentially according to the specification. A picking method characterized by making it possible to pick a target figure by controlling it.