JPH05290136A - Pick input system of graphic processing system - Google Patents

Abstract

PURPOSE:To increase the efficiency of position confirmation and lighten the burden on a user program by partially enlarging and displaying an area at the periphery of a pick input position. CONSTITUTION:When input operation is performed by a pick input means 25 through an input device 40 for a graphic which is developed into an image in a frame buffer 24 by a graphic drawing means 21 and currently displayed on the screen of a graphic display device 30, an area enlarging means 26 partially enlarges and displays the area at the periphery of an input cursor if it is difficult to indicates the graphic on the screen where the graphic is currently displayed, thereby facilitating the confirmation of the pick input position by an operator and enabling the input operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphic processing system, and more particularly to a pick input method in a graphic processing system.

[0002]

2. Description of the Related Art Conventionally, in a graphic processing system, when a pick input request is made, an operator is required to input a pick, for example, when a plurality of graphics are densely present on the screen currently displayed on the graphic display device. When it is difficult to instruct the figure by using, the user program again instructs the enlarged display of the surrounding area and requests the input of the pick again, or
Alternatively, the user program inputs all the corresponding figures by some means and selects and selects them by the user program.

[0003]

According to the pick input method in the above-mentioned conventional graphic processing system, when the operator uses the input device to make an input request to input the pick identifier, the current graphic display device is used. When it is difficult for the operator to input the figure when inputting a pick, such as when multiple figures are crowded on the screen displayed in, the user program instructs the enlarged display of the surrounding area again. However, since processing such as requesting input of a pick is performed again, there is a drawback in that the position cannot be efficiently confirmed at the time of pick input, and the user program has a heavy load.

In view of the above problems, the present invention provides a pick input method in a graphic processing system capable of efficiently enlarging an area around a position to be input and efficiently confirming the input position. It is intended.

[0005]

A pick input method in a graphic processing system according to the present invention is a graphic command segment registration means for performing registration according to a registration request of a graphic command to a segment from a user program, and a graphic command segment registration means. By executing the command, the graphic data drawn by the graphic command is expanded in the frame buffer, the graphic command is fetched from the segment storage area in response to a segment redraw request from the user program, and the graphic data drawn by the graphic command is transferred to the frame buffer. When the user program or pick input request is made by the operator input from the graphic drawing means that develops the above image and writes it in the frame buffer, the area enlargement display means is called and the coordinate value input from the input device is searched. Of the figure The pick input unit that returns different information as a response to the user program, the region that is called from the pick input unit and that is the enlargement target from the coordinate values input from the input device, and the region in which this region is enlarged and displayed are obtained and enlarged. It has an area enlargement display means for storing an image of a target area before displaying a graphic and enlarging and displaying it on the area, restoring after completion of pick input and returning control to the pick input means again.

Further, the area enlargement display means uses the area to be enlarged from the coordinate values input from the input device and the area to be enlarged and displayed as an area on the frame buffer, and the area to be enlarged on the frame buffer. The method is characterized in that a value for each pixel in is read out, assigned to the values of several pixels in the enlarged display area, enlarged and displayed, and control is returned to the pick input means.

Further, the area enlargement display means obtains an area to be enlarged from the coordinate values input from the input device, and displays an image of the figure data in the area to be enlarged among the figure data stored in the segment storage area. The present invention is also characterized in that it is possible to use a method in which conversion is performed to an area for generation and enlarged display, enlarged display is performed, and control is returned to the pick input means.

[0008]

According to the above construction, in the graphic processing system having the pick input function, the pick input means receives the pick input request by the user program which has received the operator input from the input device, and performs the enlarged display processing by the pick input request. The area enlarging display means for performing the process is called and the processing is passed, and the identification information of the figure retrieved from the input coordinate value is returned as a response to the user program according to the processing result in the area enlarging display means.

The area enlarging and displaying means called for the enlarging and displaying process enlarges and displays the area to be enlarged which is obtained from the coordinate values input from the input device and the area for enlarging and displaying the area in pixel units on the frame buffer. Enlarge the image by the enlargement process, or generate the image of the figure data of the enlargement target area obtained earlier from the figure data saved in the storage area, and convert the data to the enlargement display area to enlarge the display. The image before enlargement display is saved and saved, and recovery processing is performed after pick input is completed, so it is possible to enlarge and display the area around the position where you want to input the pick, and the area around the position where you want to enter the pick is not the entire screen but the area. Since it is also possible to enlarge and display in a specific area, it is possible to improve the efficiency of the pick input position confirmation work.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

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

Referring to FIG. 1, the user program 10
When a graphic command segment registration request is issued from the graphic processing system 20 to the graphic processing system 20, the graphic command segment registration means 21 is called. The graphic command segment registration means 21 calls the graphic drawing means 23 after the graphic command is registered in the segment storage area 22. Alternatively, when there is a graphic drawing request from the user program, the graphic drawing means 23 is called. In the graphic drawing means 23, the graphic data is transferred to the frame buffer 2.
4 is expanded into an image and written in the frame buffer 24.

When there is a pick input request from the user program 10 to the graphic processing system 20, the pick input means 25 is called and the area enlargement display means 26 is called. The pick input means 25 receives an input from an operator via the input device 40.

Next, the operation will be described.

Whenever the cursor is moved from the input device 40, the area enlargement display means 26 enlarges and displays the area around the cursor position as an enlargement target, and the operator gives an instruction to fix the enlargement display at a certain position. A figure is selected by pressing a button. Alternatively, by moving the cursor and pressing the button for instructing the enlargement display of the figure at the figure to be selected, the area enlargement display means 26 is called, the figure is enlarged and displayed, and the cursor is moved in that area to instruct the selection of the figure. A selection operation such as selecting a figure is performed with the button for.

The next step is to enlarge the area display means 26.
Temporarily saves the current image in the area on the frame buffer displaying the enlarged graphic, then performs the enlarged display process, and restores the saved image after the pick input is completed.

In the pick input means 25, when a graphic selection instruction is given by the operator, the processing result of the area enlargement display means is judged and the graphic in the corresponding graphic segment storage area displayed at that pixel is searched. Then, the information about the found figure (for example, in the international standard graphics system GKS, the segment name including the figure and the pick identifier) is returned to the user program 10.

FIG. 2 shows a process 61 which is an example of a graphic drawn on the graphic display device 30 by graphic data of a horizontal line, a diagonal line rising to the right and a diagonal line falling to the right.

FIG. 3 shows an image of the frame buffer 24 for the graphic of the process 61 and a process 62 which is an example of the enlargement target region and the enlargement display region determined when the region enlargement display request is made.

FIG. 4 is a diagram showing a process 63 showing a process example of the area enlargement display means 26. In this example, the enlargement target area is enlarged and displayed in the enlargement display area by the process 62, and the value of 1 pixel of the enlargement target area is 9 (3 × 3) of the enlargement display area.
The case where the value is equivalent to a pixel is shown. Even if the operator wants to pick a diagonal line that rises to the right, the process 64 allows the operator to easily specify it with the cursor.

FIG. 5 is a diagram showing the configuration of the second embodiment of the present invention.

The processing of the graphic command segment registration means 21 in FIG. 5 is the same as that of the graphic command segment registration means for graphic 1.

The processing of the graphic drawing means 23 in FIG. 5 is the same as that of the graphic drawing means in FIG.

The processing of the pick input means 25 in FIG. 5 is the same as that of the pick input means in FIG.

The processing of the area enlarging display means 261 in FIG. 5 is the same as the area enlarging display means 2 in the first embodiment of FIG.
In addition to the processing of step 6, after temporarily saving the current image of the area on the frame buffer 24 for displaying the enlarged graphic, the graphic data stored in the segment storage area 22 is read out and enlarged to the enlarged display area by data processing. Enlarge and display the ratio of the target area.

FIG. 6 shows the image of the graphic display device 30 for the graphic for which the area to be magnified is obtained from the device coordinates when the graphic selection button is pressed in FIG. 5, and is determined when the area expansion display button is pressed. A process 72 which is an example of the enlargement target region in the device coordinates and the enlargement display region in the device coordinates in the coordinate system of the graphic data stored in the segment storage means 22 corresponding to this region is shown. is there.

FIG. 7 is a diagram showing a processing example of the area enlargement display means 261. In this example, since the enlargement target area in the coordinate system of the graphic data stored in the segment storage area 22 is converted into the enlarged display area of the device coordinates and mapped,
Although it takes time as compared with the area enlargement display means 26 of the previous embodiment, it shows the processing 73 which enables more detailed display.

[0028]

As described above, according to the present invention, when it is difficult to confirm the position of the pick input on the screen currently displayed on the graphic display device, the position desired to be input is instructed by the input device. By enlarging the surrounding area and displaying the area around the position you want to input in a partial area instead of the entire screen, you can improve the efficiency of checking the pick input position It has the effect of reducing the burden on the user.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a pick input method in a graphic processing system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a display graphic of the graphic display device shown in FIG.

FIG. 3 is a diagram showing an enlargement target area and an enlarged display area of the frame buffer shown in FIG.

FIG. 4 is a diagram showing a process of a region enlargement display unit shown in FIG.

FIG. 5 is a configuration diagram of a second embodiment of the present invention.

FIG. 6 is a diagram showing an enlargement target area and an enlarged display area by the processing of the area enlargement display unit shown in FIG.

FIG. 7 is a diagram showing a process of a region enlargement display unit shown in FIG.

[Explanation of symbols]

 10 user program 20 graphic processing system 21 graphic command segment registration means 22 segment storage area 23 graphic drawing means 24 frame buffer 25 pick input means 26, 261 area enlargement display means 30 graphic display device 40 input device

Claims (3)

[Claims] 1. Graphic data and a graphic command for drawing a graphic according to an instruction of a user program, and the command is held and managed in a storage area called a segment storage area, and the contents are collectively output according to an instruction of the user program. In a system having a function of performing drawing by using the pick input function, a coordinate value is input from an input device according to an instruction of a user program, and a segment including a figure including the coordinate value is returned as a response. Graphic command segment registration means for performing registration in response to a registration request of a graphic command from the user program to the segment, and graphic data drawn by the graphic command is executed on the frame buffer by execution of the graphic command segment registration means, and the utilization is performed. A segment program redraw request from the user program causes the segment The graphic command is taken out from the storage area, the graphic data drawn by the graphic command is developed into an image on the frame buffer, and the user program picks up the graphic drawing means for writing in the frame buffer and operator input from the input device. Pick input means for calling the area enlargement display means when making a request, and returning the identification information of the figure retrieved from the coordinate value input from the input device as a response to the user program, and the pick input means. The area to be magnified and the area in which the area is magnified are obtained from the coordinate values that are called from the input device, and the image of the area to be magnified before the graphic is displayed is saved. The area is enlarged and the control is restored to the pick input means after the pick input is completed. Pick input method in graphic processing system characterized by having and. 2. The area enlarging display means sets an area to be enlarged from a coordinate value input from the input device and an area on which the area is enlarged and displayed on the frame buffer as an area on the frame buffer. 2. The graphic processing system according to claim 1, wherein a value for each pixel in the enlargement target area is read, assigned to a value of several pixels in the enlargement display area, enlarged and displayed, and control is returned to the pick input means. Input method in 3. The area enlargement display means obtains an area to be enlarged from coordinate values input from the input device,
Of the graphic data saved in the segment storage area,
The pick in the figure processing system according to claim 1, wherein an image of the figure data in the enlargement target area is generated, converted into an enlarged display area, enlarged and displayed, and control is returned to the pick input means. Input method