JPH06215090A - Graphic processor - Google Patents

Abstract

PURPOSE:To appropriately execute cutting in accordance with the kind of a line element, in the case of cutting the line element by providing a deciding means for deciding whether cutting is appropriate or not in accordance with the kind of the line element. CONSTITUTION:The graphic processor is constituted of a display control means for controlling a display plural line elements, a cut line element selecting means S11 for selecting a line element to be cut, which is cut, a cutting line element selecting means S12 for selecting a cutting line element for cutting the line element, a line element discriminating means S14 for discriminating the kind of the cutting line element and the line element to be cut, a deciding means for deciding whether cutting is executed or not in accordance with the kind of the discriminated line element, and a line element cutting means for letting the cutting line element cut the line element to be cut in the case that it is decided that cutting is permitted by the deciding means. Also, this graphic processor is provied with both a storage means for storing the cut quantity, and a line element cutting means S17 for executing cutting in accordance with the cut quantity, in the case that it is decided that cutting is permitted and by this constitution, cutting is controlled by the kind of the line element. Moreover, the cut quantity is variable by combination of the line elements to be cut.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphic processing apparatus, and more particularly to a graphic processing apparatus for cutting line elements.

[0002]

2. Description of the Related Art Conventionally, in a graphic processing device, when a line element is cut, when a line element to be cut and a line element to cut the line element are selected, the line element is cut regardless of the combination of the types of line elements. Was being conducted.

When a line element to be cut and a line element for cutting the line element are selected, the line element is cut by a predetermined constant cutting amount regardless of the combination of the types of line elements. Was becoming. However,
For example, in the field of technical illustration, in addition to graphic elements, there are line elements such as index lines (connection lines) and connection lines (flow lines), and the combination of the line element to be cut and the type of line element that cuts it. Depending on the situation, disconnection may not be allowed.

[0004]

However, since the line element is cut regardless of the combination of the line element to be cut and the line element that cuts it, the line element that is not allowed to be cut is cut. There was a possibility that it would end up.

Further, the cutting amount may differ depending on the combination of line elements.

However, regardless of the combination of the line element to be cut and the line element for cutting the line element, the line element is cut with a predetermined constant cutting amount.

An object of the present invention is to provide a graphic processing device for controlling the execution of cutting depending on the type of line element.

It is another object of the present invention to provide a graphic processing device that can change the cutting amount by combining line elements to be cut.

[0009]

The graphic processing device of the present invention is based on the above-mentioned problems.
Display control means for controlling display of a plurality of line elements, and cut line element selection means for selecting a cut line element to be cut,
A cutting line element selecting unit that selects a cutting line element that cuts a line element, a line element determining unit that determines the types of the cutting line element and the cut line element, and cuts according to the type of the determined line element. It is composed of a judging means for judging whether or not there is a line element, and a line element cutting means for cutting the line element to be cut by the cutting line element when the cutting means judges that cutting is possible.

Further, the graphic processing apparatus of the present invention has a display control means for controlling the display of a plurality of line elements, a storage means for storing the cutting amount, and a cut line element for selecting a cut line element to be cut. Selecting means, cutting line element selecting means for selecting a cutting line element for cutting the line element, line element determining means for determining the types of the cutting line element and the cut line element, and the type of the determined line element And a line element cutting unit for cutting the line element to be cut according to the cutting amount when the judgment unit judges that the cutting is possible. To be done.

With the above structure, depending on the type of line element,
Controls the execution of disconnects. In addition, the cutting amount is variable depending on the combination of the line elements to be cut.

[0012]

DETAILED 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 of an image processing apparatus according to an embodiment of the present invention.

In the figure, 11 is a CPU that controls the entire apparatus, 13 is a ROM that stores programs executed by the CPU 11, and a main memory that includes a RAM used as a work area for this execution. A keyboard for inputting character information such as various characters and control information, 15 is a mouse as a pointing device, and 16 is a key interface for making a signal connection between the keyboard 14 and the mouse 15 and this device. . 17 is a LAN (local area network)
LAN interface connecting 18 and this device, 1
Reference numeral 9 is an input / output device (hereinafter referred to as I / O) having a ROM, SRAM, RS232C system interface and the like. Various external devices can be connected to the I / O 19. Two
Reference numerals 0 and 21 are a hard disk device and a floppy disk device as external storage devices, respectively, and 22 is a disk interface for signal connection between the hard disk device 20 or the floppy disk device 21 and this device. Reference numeral 23 is a printer that can be configured by an ink jet printer, laser beam printer, or the like, and reference numeral 24 is a printer interface for making a signal connection between the printer 23 and this apparatus. Reference numeral 25 is a display device, and 26 is a display interface for signal connection between the display device 25 and this device. 12
Is a system bus composed of a data bus, a control bus, and an address bus for connecting signals between the above-mentioned devices.

In the present apparatus in which the above-described respective devices are connected, the user generally operates while responding to various information displayed on the display screen of the display device 25. That is, the LAN 18, the external device connected to the I / O 19, the keyboard 14, the mouse 15, the hard disk device 20,
Characters, image information, etc. supplied from the floppy disk device 21 and operation information etc. stored in the main memory 13 and related to user's operations are displayed on the display screen of the display device 25, and the user can see the information while viewing the information. Edit and instruct the device.

FIG. 2 is a flow chart showing the processing operation of the embodiment of the present invention.

Next, the first embodiment will be described with reference to FIGS. 3 and 4 based on the flow chart shown in FIG.

The line elements referred to here are not only ordinary graphic elements such as line segments and arcs, but also index lines and connection lines (flow lines) used in the field of technical illustrations. Etc. include lines other than graphic elements.

FIG. 3 shows a part of the line elements displayed on the display screen of the display device 25. In the figure, 3
Reference numeral 1 denotes a mouse cursor, and movement of the mouse cursor 31 is instructed by the mouse 15. The data of the line element a and the line element b are created by instructing the start point, the end point, and the type of the line element by the mouse cursor 31, and are stored in the main memory 13.

When two line elements a and b intersecting each other are displayed on the display screen 30 of the display device 25, one line element a is cut by another line element b. Think

First, the line element a to be cut is selected with the mouse cursor 31 (step 11), and the type of the line element a is determined by the CPU 11 (step 12).

Next, when another line element b for cutting the line element a is similarly selected with the mouse cursor 31 (step 13), the CPU 11 determines the type of the line element b (step 14). .

From the results of the determination in steps 12 and 14, it is determined whether or not the line element a can be cut by the line element b in the case of this combination of line element types (step 15).

For example, if the type of the line element a to be cut in step 12 is a connecting line and the result of step 14 is that the type of the line element b to cut the line element a is a graphic element, the cutting is performed in step 15. It is determined to be impossible.

On the contrary, if the type of the line element a to be cut in step 12 is a graphic element and the result of step 14 is that the type of the line element b to cut the line element a is a connecting line, then in step 15 It is determined that disconnection is possible.

When it is determined in step 15 that the disconnection is impossible, a message to that effect (for example, "disconnection impossible") is displayed on the display screen 30. Then, after the selection of the previous steps 11 and 13 is canceled, the process returns to step 11 and waits for the next input.

If it is determined in step 15 that cutting is possible, the preset cutting amount (d1 and d2 in FIG. 5) corresponding to the type of line element a and the type of line element b is the main memory 13. Is read by the CPU 11. (Step 16).

For example, when the line element a is a graphic element and the line element b is a connecting line, both sides of the graphic element a are cut as shown in FIG. 6, but the line element a is a graphic element and a line element. If b is an index line, as shown in FIG. 7, only one side of the graphic element a is cut.

Then, the line element a is cut by the line element b by the cutting amount determined in step 16, and the result is displayed on the display screen 3.
0 is displayed (step 17) and the process returns to step 11.

FIG. 4 shows a display on the display screen 30 displaying the line element a cut by the line element b.

The data of the line element after being cut is stored in the main memory 13.

In the present embodiment, the cutting process is performed by designating the line element created in advance. However, the line element is created by creating the line element and instructing the cutting to create another line element. You may make it cut | disconnect. To change the cutting amount, the keyboard 14 is instructed to change the cutting amount, and a list of line elements and cutting amounts is displayed on the display screen.
It can be changed by inputting a numerical value. Further, in the present embodiment, the cutting of the line element is performed by the instruction, but when the line element intersects, the type of the line element may be automatically determined and the cutting process may be performed.

As described above, according to this embodiment,
Since the possibility of cutting is determined according to the type of line element, it is possible to avoid cutting a line element that is not allowed to be cut. Further, even if the cutting amount varies depending on the combination of line elements, there is an effect that the cutting amount is cut according to the type of line element.

[0034]

As described above, according to the present invention, when a line element is cut, it can be cut appropriately depending on the type of the line element.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart showing a processing operation of an embodiment of the present invention.

FIG. 3 is a diagram showing a display screen of the present embodiment.

FIG. 4 is a diagram showing a display of a display screen according to the present embodiment.

FIG. 5 is a diagram showing a display screen of this embodiment.

FIG. 6 is a diagram showing a display on a display screen according to the present embodiment.

FIG. 7 is a diagram showing a display on a display screen of the present embodiment.

[Explanation of symbols]

 11 CPU 12 System Bus 13 Main Memory 14 Keyboard 15 Mouse 16 Key Interface 17 LAN Interface 18 LAN 19 I / O Interface 20 Hard Disk Device 21 Floppy Disk Device 22 Disk Interface 23 Printer 24 Printer Interface 25 Display Device 26 Display Interface

Claims (2)

[Claims] 1. A display control means for controlling the display of a plurality of line elements, a cut line element selecting means for selecting a cut line element to be cut, and a cutting line for selecting a cut line element for cutting a line element. An element selecting means, a line element discriminating means for discriminating the types of the cutting line element and the to-be-cut line element, a discriminating means for discriminating whether or not to cut according to the discriminated line element type, and the discriminating means. A graphic processing device, comprising: a line element cutting unit that cuts the line element to be cut when the cutting line element is determined to be cut. 2. A display control means for controlling the display of a plurality of line elements, a storage means for storing a cutting amount, a cut line element selecting means for selecting a cut line element to be cut, and a cut line element. Cutting line element selecting means for selecting a cutting line element to be cut, line element discriminating means for discriminating the types of the cutting line element and the to-be-cut line element, and determining whether or not to cut according to the discriminated line element type And a line element cutting unit that cuts the line element to be cut according to the cutting amount when the judgment unit judges that the cutting is possible. apparatus.