JPH052208U - Numerical control device - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of the numerical control device is to be able to magnify and display an arbitrary part of the display screen by a simple operation of the operator. [Structure] Video R that saves the image displayed on the screen
Regarding AM, it has two systems of video RAM for normal display and enlarged display, and when performing enlarged display, the image on the normal display video RAM is enlarged and the result is written to the enlarged display video RAM. The enlarged display is performed by switching the input for outputting to the display device from the normal display video RAM to the enlarged display video RAM. [Effect] An easy-to-see screen can be obtained by being able to magnify and display complicated figures and small characters on the screen.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a screen display system of a numerical control device.

[0002]

[Prior Art]

 FIG. 5 shows a configuration example of a conventional numerical control device. In FIG. 5, 10 is a CPU of a numerical control device, 11 is a display device such as a CRT display device that displays a screen such as characters and graphics, 12 is a video RAM for storing an image displayed on the screen, and 13 is from the CPU 10. Command to draw graphics and characters, and sends the contents of the video RAM 12 to the display device 11 at an appropriate timing. 14 is a text font that stores a character image. 15 is a text font. It is an input device such as a keyboard that receives commands from the operator. FIG. 6 shows an example of the screen display. As shown in this figure, the screen consists of characters and graphics.

Next, the operation will be described. First, the case of displaying characters will be described. The CPU 10 sends a command for designating a character code and a display position to the graphic processor 13. When the graphic processor 13 receives this command, it reads the font image of the specified character code from the text font 14 that stores the character image of a fixed size, and writes it to the position specified by the command in the video RAM 12. Write the font image. After that, the graphic processor 13 sends the data of the video RAM to the display device 11, and the characters are displayed on the display device. Next, a case of displaying a graphic will be described. The CPU 10 sends to the graphic processor 13 a command for drawing a graphic such as an arc and a command for designating a display position. Upon receiving this command, the graphic processor 13 writes the designated graphic in the video RAM 12. After that, the graphic processor 13 sends the data of the video RAM 12 to the display device 11, and a graphic is displayed on the display device 11.

[0004]

[Problems to be solved by the device]

 Since the conventional numerical control device is configured as described above, once a character or figure is drawn and displayed on the screen, even if the operator wants to focus on only a part of the screen, that part is enlarged. However, there was a problem that it was difficult to see complicated figures and small characters.

An object of the present invention is to obtain a numerical control device capable of enlarging the display screen of the numerical control device.

[0006]

[Means for Solving the Problems]

 The numerical control device according to the present invention has been made to solve the above problems, and an operator arbitrarily enlarges any part of all characters and figures displayed on the screen to display it. It is equipped with a function that can be displayed.

[0007]

[Action]

 The numerical controller according to the present invention can arbitrarily enlarge a part of the screen by the function of freely expanding the display screen.

[0008]

【Example】

 Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of the configuration of the numerical control device display section and the input section. In FIG. 1, 1 is a CPU of a numerical control device, 2 is a display device such as a CRT display device for displaying a screen, 3 is a video RAM for normal display for storing an image displayed on a normal non-enlarged screen, 4 Is an enlarged display video RAM for storing the image to be enlarged, 5 draws graphics and characters in response to a command from the CPU, and sends the contents of the normal display video RAM 3 to the display device at an appropriate timing. The graphic processor 6 is a text font for storing a character image, and 7 is an input device such as a keyboard for receiving a command from an operator. FIG. 2 is an example of the screen display. As shown in this figure, the screen consists of characters and graphics.

Next, the operation will be described. First, the case of displaying characters will be described. The CPU 1 sends a command for designating a character code and a display position to the graphic processor 5. When the graphic processor 5 receives this command, it reads the font image of the specified character code from the text font 6 that stores the character image of a fixed size, and the position specified by the command in the video RAM 3 for normal display. Write the font image to. After this, the graphic processor 5 sends the data of the normal display video RAM 3 to the display device 2, and the characters are displayed on the display device 2.

Next, a case of displaying a graphic will be described. The CPU 1 sends to the graphic processor 5 a command for drawing a graphic such as an arc and a command for designating a display position. Upon receiving this command, the graphic processor 5 writes the designated figure in the normal display video RAM 3. After that, the graphic processor 5 sends the data of the video RAM 3 for normal display to the display device 2, and the graphic is displayed on the screen of the display device 2.

Next, the enlargement processing will be described. The operator inputs from the input device 7 that he wants to perform enlarged display. Then, a cursor is displayed on the screen of the display device 2. The operator moves the cursor using the cursor keys provided on the input device 7 and designates two points on the diagonal of the range to be enlarged on the screen. Specify the enlargement range. A mark indicating the position is displayed on the screen at the two points specified by the operator. The screen in this state is shown in FIG. In FIG. 3, 8 and 9 are the above marks. When the operator specifies the enlargement range by the above operation, the CPU 1 calculates the enlargement factor based on the specified enlargement range, and the enlargement range and the enlargement factor thus obtained cause the normal display video RAM 3 to be displayed. The image data is enlarged and the result is written in the enlarged display video RAM 4, and the well-known inverse distance method is used as an algorithm for the enlargement. Next, the CPU 1 sends a command to the graphic processor 5 to change the data output to the display device 2 to be read from the enlarged display video RAM 4. When the above-mentioned change is made by the graphic processor 5, an enlarged figure is displayed on the screen of the display device 2. This screen is shown in FIG. To return the enlarged display to the normal display, the operator inputs a command to stop the enlarged display from the input device 7. When the above command is input, the CPU 1 sends a command to the graphic processor 5 to change the data output to the display device 2 to be read from the video RAM 3 for normal display. When the above changes are made by the graphic processor 5, the screen returns to the normal display. Further, although the enlarging process is performed by the CPU 1 here, the graphic processor 5 may perform this process.

[0012]

[Effect of the device]

 As described above, according to the present invention, a part of the screen can be arbitrarily enlarged, which has the effect of making it easier to see complex figures and small characters.

[Brief description of drawings]

FIG. 1 is a block diagram of a numerical controller according to an embodiment of the present invention.

FIG. 2 is a normal display screen view of a numerical controller according to an embodiment of the present invention.

FIG. 3 is a screen view during input of an enlarged range of the numerical controller according to the embodiment of the present invention.

FIG. 4 is an enlarged display screen view of the numerical controller according to the embodiment of the present invention.

FIG. 5 is a configuration diagram of a conventional numerical control device.

FIG. 6 is a display screen view of a conventional numerical control device.

[Explanation of symbols]

 1 CPU 2 display device 3 video RAM for normal display 4 video RAM for enlarged display 5 graphic processor 6 text font 7 input device 8 enlargement range mark 9 enlargement range mark 10 CPU 11 display device 12 video RAM 13 graphic processor 14 text font 15 Input device

Claims (1)

[Claims for utility model registration] [Claim 1] Input device such as keyboard and CRT
A numerical control device equipped with a display device such as a display device, wherein a part of a display screen including characters and graphics can be arbitrarily enlarged by an operator's designation.