JPS60257493A - Magnifier for graphic display in nc control unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention changes the size and position of a frame line indicating a graphically displayed enlarged part such as a tool trajectory, and changes the size and position of a frame line by an input key, and changes the frame line by a switching circuit. The present invention relates to a graphic display enlarging device in a numerical control device that displays an enlarged screen of a portion indicated by lines.

(Technical background of the invention and its problems) FIG. 1 is a block diagram showing an example of a graphic display device in a conventional numerical control device. and scale data are stored in the graphic origin register 2 and scale register 3, respectively. Then, data 10[1 such as origin data, scale data, and the tool trajectory to be displayed are inputted to the trajectory line segment calculation section 4, and the results calculated here are converted into a dot image by the line segment drawing section 5. The data is stored in the video RAM 8, and further displayed on the CRT 8 by the video signal generator 7. FIG. 2 shows an example of a screen displayed in this way. When attempting to enlarge a part of this screen, for example, area A indicated by a broken line, an operator or the like may move the origin to the screen. It is necessary to measure the distance, the size of the area A to be expanded, etc., calculate the moving acid of the origin, the scale magnification, etc., and set the new origin position and scale size using the data setting section 1. . Therefore, the task of setting a desired area is complicated and difficult, and there is a drawback that accuracy is lacking.

(Object of the invention) This invention is as described in! 1 (This was done out of curiosity. By looking at the enlargement frame displayed on the screen and setting the position and size of this frame using the input keys, you can display the desired enlarged screen. The object of the present invention is to provide a graphical display device for a numerical control device adapted for displaying information.

(Summary of the invention) This first shell is a PJ that graphically displays tool trajectories, etc.
When obtaining an enlarged screen from the semi-double screen, a frame line to indicate the position and size of the enlarged screen is displayed on screen J-, and the position and size of the frame line can be changed using the origin movement key and the enlargement/reduction key. The size is changed to display a desired enlarged screen.

(Embodiment of the invention) FIG. 3 is a block diagram showing an embodiment of the invention.
The origin and scale of the standard screen are set by the data setting section 1, and these data are stored in the standard graphic origin register 21 and the standard scale register 31, respectively. The frame display line segment processing unit 15 stores line segment data indicating the position and size of the frame, and the origin position of the frame and the frame can be changed by input signals from the origin movement key 13 and the enlargement/reduction key 14. The size of can be changed. The data generated in this way is sent to the graphic origin/scale calculation section 18 and the frame line segment drawing section 16, and the graphic origin/scale calculation section 18 is further sent to the standard graphics/scale calculation section 18.
The data from the link origin register 21 and the standard scale register 31 are sent and input, the origin and scale of the enlarged screen are set, and the data are stored in the enlargement graphic origin register IO and the enlargement scale register 11, respectively. Data on the origin and scale of the standard screen and the enlarged screen are stored in the standard graphic origin register 21, standard register 31, enlargement graphic origin register 10, and enlargement scale register 11, respectively.
The data is sent to the switching circuit 12, and the switching circuit 12 selects data for the standard screen and data for the enlarged screen using the standard/enlarged screen switching signal 101.

Then, the data selected here is sent to the trajectory display line segment calculation section 4 as described above, and data 100 such as tool trajectory etc.
The line segment drawing unit 5 converts the dot image into a dot image and stores it in the video RAM l1i.

In addition, the frame line segment drawing unit 1B rewrites the dot image of the frame display video RA old 7 every time the data sent from the frame display line segment processing unit 15 changes, and when setting the screen to be enlarged, , by turning on the switch 9, the video RAM 8 and the frame display video RAMI? The signal is sent to the video signal generating section 7A, and an image as shown in FIG. 4 is displayed on the CRT 8.

In such a configuration, an operator or the like presses the origin movement key 13 and the enlargement/enlargement key while looking at the screen shown in FIG.
By operating the reduction key 14 and selecting the data of the screen for enlargement in the switching circuit 12, the screen specified by the frame 18 which characterizes the screen portion to be enlarged is enlarged within the frame 18 as shown in FIG. It can be displayed on GRT8 as an image.

Further, when the switch 9 is turned off, the frame 18 is not displayed on the screen of the CRT 8, and normal display can be performed.

(Effects of the Invention) As described above, according to the present invention, when setting the range of the part to be enlarged, there is no need for complicated work, and it is possible to accurately set the range of the part to be enlarged by simply operating the keys while looking at the frame line displayed on the screen. It has the advantage of being able to easily obtain an enlarged screen.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an example of a graphic display device in a conventional numerical control device, Fig. 2 is a diagram showing an example of a screen displaying graphics such as tool trajectories, and Fig. 3 is a block diagram showing an example of a graphic display device in a conventional numerical control device. FIG. 4 is a block diagram showing an example, FIG. 4 is a diagram showing an example of a standard screen displayed with a frame line indicating an enlarged portion according to the present invention, and FIG. 5 is a diagram showing an example of an enlarged screen. l...Data setting unit, 2...Graphic origin register, 3...Scale register, 4...Trajectory display line segment register, 5...Line segment drawing unit, 6...Video RA
M, 7... Video signal generation section, 8... Screen, 9...
- Switch, 10...Graphic origin register for enlargement, 11...Scale register for enlargement, 12...Switching circuit, 13...Origin point movement key, 14...Enlargement/reduction key. 15... Frame display line segment processing unit, 16... Frame line segment drawing unit, 17... Video RAM for frame display, 18... Graphic origin/scale calculation unit, 21... Standard graphic origin register , 3I...Standard scale register, 71...Video signal generation section, 100...Data such as tool trajectory, 101...Standard/enlarged screen switching signal. Applicant's agent Yuzo Yasugata

Claims (1)

[Claims] A frame that allows a frame line to be displayed on the 1ii standard to indicate the position of the enlarged part of the screen when obtaining a partially enlarged screen from a standard screen that graphically displays tool trajectories, etc. In order to change the size of the line drawing unit and the graphic origin, process the data input using the enlargement/reduction key and the origin movement key;
A frame line segment processing unit for controlling the frame line drawing unit and a switching circuit for selecting the standard screen or the enlarged screen, and displaying the enlarged screen manually by each of the keys. A graphic display enlargement device for a numerical control device, characterized by: