JPH0535834A - Graphic selection system - Google Patents

Abstract

PURPOSE:To securely select a graphic by changing the size of a picking aperture corresponding to the size of a window. CONSTITUTION:A graphic output means 2 informs a graphic display means 3 of window information in accordance with a window preparation instruction by a graphic processing program 1 to prepare the window, outputs the window information to a window information retention means 4 to retain the information, informs the graphic display means 3 of the graphic display instruction by the graphic processing program 1 to display the graphic and outputs the positional information of the graphic to a graphic position retention means 5. A graphic selection means 6 assumes the picking aperture corresponding to the size of the window of the window information retention means 4 while centering about the position inputted from a user 8 via a user instruction input means 7, references to the graphic position information of the graphic position retention means 5 and selects the graphic overlapping the picking aperture from among the graphics displayed on the window.

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 such as a computer graphic system, and more particularly to a graphic selection system in a graphic processing system.

[0002]

2. Description of the Related Art In a figure selection system in a figure processing system, a position on a display screen of a figure output device is received from a user, and an area around the position (hereinafter referred to as "pick aperture") is assumed, A method of selecting overlapping figures is adopted. This is to enable the graphic selection process even if there is some error in the position designated by the user.

Conventionally, in this type of graphic selection system, the size of the graphic displayed on the display screen is fixed depending on the size of the window, but the size of the pick aperture is fixed without changing. Was there.

[0004]

In the above-described conventional figure selection method, the size of the pick aperture is fixed without changing, so that, for example, as shown in FIG. If you select a square with a diagonal line while it is being displayed, the window in which the figure is displayed is large. However, when the size of the displayed figure becomes smaller and the size of the displayed figure becomes smaller, the pick apertures also overlap the adjacent squares, which makes it impossible to select only the target square.

In view of the above points, an object of the present invention is to change the size of the pick aperture according to the size of the window, and also to reduce the pick aperture when the window is small so that the distance between the figures is narrow. Even so, the object of the present invention is to provide a graphic selection method capable of surely selecting a graphic.

[0006]

According to the figure selection method of the present invention, a central processing unit that executes a figure processing program and a plurality of windows that are associated with the central processing unit and are rectangular areas for displaying figures are created on the display screen. In a graphics processing system equipped with a graphics output device capable of outputting graphics and an input device capable of inputting a user's instruction, in a designated position on a display screen at a designated size. A window having the specified window number is created, and the figure display means for displaying the figure instructed to be displayed on the window in a size according to the size of the window and the position, size and window number of the window are held. Window information holding means, figure position holding means for holding figure position information, and window creation by a figure processing program Position of the window according to indicate the position of the window causes created a window notifies the size and window number to said graphical display means,
The size and the window number are output to the window information holding means and held therein, and the figure display means is notified of the instruction to display the figure in the window having the designated window number by the figure processing program, and the figure is displayed. A graphic output means for outputting the positional information of the graphic to the graphic position holding means and holding it, a user instruction input means for outputting the position when receiving a position instruction on the display screen from the user, Position information of the figure held in the figure position holding means assuming a region having a size corresponding to the size of the window held in the window information holding means centering on the position output from the user instruction input means Select a figure that overlaps the above-mentioned area from among the figures that are specified to be displayed on the window and refer to the figure processing program. And a graphic selection means for.

[0007]

In the graphic selection system of the present invention, the graphic display means creates a window having a specified window number with a specified size at a specified position on the display screen, and is instructed to display on the window. The figure is displayed in a size corresponding to the size of the window, and the window information holding means holds the position, size and window number of the window,
The graphic position holding means holds the position information of the graphic, and the graphic output means notifies the graphic display means of the position, size and window number of the window in accordance with the window creating instruction by the graphic processing program and creates the window. The position, size, and window number are output to the window information holding means and held therein, and the figure display means is notified of the instruction to display the figure in the window having the specified window number by the figure processing program, and the figure is displayed. The position information of the figure is output to the figure position holding means and held therein, and when the user instruction input means receives a position instruction on the display screen from the user, the position is output and the figure selecting means instructs the user. It is held in the window information holding means centered on the position output from the input means Assuming an area of a size corresponding to the size of the window, refer to the position information of the figure held in the figure position holding means, and select the figure that overlaps the area among the figures indicated on the window. To notify the graphics processing program.

[0008]

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

FIG. 1 is a block diagram showing the configuration of a graphic selection system according to an embodiment of the present invention. The graphic selection method of the present embodiment is such that the graphic processing program 1 and the position, size and window number of the window are notified to the graphic display means 3 in accordance with the window creating instruction by the graphic processing program 1 to create the window and the window is created. The position, size and window number are output to the window information holding means 4 and held therein, and the figure display means 3 is notified of the instruction to display the figure in the window having the specified window number by the figure processing program 1 to display the figure. A graphic output means 2 for outputting the positional information of the graphic to the graphic position holding means 5 and holding it, and a window having a specified window number of a specified size at a specified position on the display screen are created. The figure specified to be displayed on the window is displayed in a size according to the size of the window. That the graphic display unit 3, the position of the window, the window information storage unit 4 for holding the magnitude and window number
And a graphic position holding means 5 for holding the position information of the graphic,
A figure held in the figure position holding means 5 assuming a pick aperture having a size corresponding to the size of the window held in the window information holding means 4 centered on the position output from the user instruction input means 7. Figure selection means 6 for referring to the position information of the figure processing program 1 to select a figure overlapping the pick aperture among the figures indicated by the figure processing program 1 and notifying the figure processing program 1 and a user 8 on the display screen. It is composed of a user instruction input means 7 for outputting the position to the graphic selecting means 6 when the position instruction is received, and a user 8.

Next, the operation of the graphic selection system of the present embodiment thus constructed will be described.

Prior to displaying a figure on the display screen, the figure processing program 1 instructs the figure output means 2 to create a window which is a rectangular area for displaying the figure. At this time, the graphic processing program 1 notifies the graphic output means 2 of the position, size and window number of the window to be created.

The graphic output means 2 is a graphic processing program 1.
When the window creation instruction is received from the graphic processing program 1, the position, size and window number of the window received from the graphic processing program 1 are notified to the graphic display means 3, and the window position, size and window number are held. It is also output to the means 4.

The graphic display means 3 creates a window for graphic display on the display screen based on the positions, sizes and window numbers of these windows received from the graphic output means 2.

The window information holding means 4 stores the position, size and window number of the window output from the figure output means 2.

After the window is created on the display screen,
The graphic processing program 1 instructs the graphic output means 2 to display a graphic in the window having the specified window number.

The graphic output means 2 displays the graphic on the window having the designated window number on the display screen in accordance with the graphic display instruction, and outputs the position information of the displayed graphic to the graphic position holding means 5.

The graphic position holding means 5 stores the position information of the graphic output from the graphic output means 2.

Here, the graphic processing program 1 is used by the user 8
When the user is requested to select the figure displayed on the display screen, the user 8 instructs the user instruction input means 7 to set the position of one point of the figure to be selected from the figures displayed on the display screen. By designating it, a figure overlapping the one point is selected.

The user instruction input means 7 outputs information on the position of one point designated by the user 8 to the figure selection means 6.

The graphic selection means 6 is a user instruction input means 7
Based on the position information output from the above, the position information of the figure held in the figure position holding means 5 is searched for a figure overlapping the pick aperture centering on the position. Here, the size of the pick aperture is determined on the basis of the information on the size of the window held in the window information holding means 4, and as the size of the window increases, the size of the pick aperture also increases. The smaller the size of, the smaller the size of the pick aperture. If there is a graphic overlapping the pick aperture as a result of the search, the graphic selecting means 6 selects the graphic and notifies the graphic processing program 1 of the selected graphic.

For example, as shown in FIG. 3, when a square with diagonal lines is selected in a state in which a large number of squares are displayed with narrow intervals, the window becomes smaller and the displayed figure becomes smaller. Even when the size becomes smaller, the size of the pick aperture also becomes smaller according to the size of the window, so that the pick aperture does not overlap adjacent squares, and only the target square can be selected. Note that, in FIG. 3, the pick aperture is shown by a circle hatched by a diagonal line rising to the right, but it goes without saying that the pick aperture is not displayed as such a figure on the display screen.

[0022]

As described above, according to the present invention, since the size of the pick aperture is changed according to the size of the window, the window is small in the state where the intervals between the figures are narrow. Even if the figure is displayed small, the pick aperture becomes small when the window is small, so that there is an effect that the figure can be surely selected.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a graphic selection system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example in which a figure is selected by a pick aperture in a conventional figure selection system.

FIG. 3 is a diagram showing an example in which a figure is selected by a pick aperture in the figure selection system of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Graphic processing program 2 Graphic output means 3 Graphic display means 4 Window information holding means 5 Graphic position holding means 6 Graphic selecting means 7 User instruction input means 8 User

Claims (1)

Claim: What is claimed is: 1. A central processing unit for executing a graphic processing program, and a plurality of rectangular windows, which are associated with the central processing unit, for displaying a graphic, are created on a display screen, and a graphic is output to each window. In a graphic processing system equipped with a graphic output device capable of inputting and an input device capable of inputting a user's instruction, a window number specified with a specified size is specified at a specified position on the display screen. A graphic display means for creating a window having the same and displaying a graphic instructed to be displayed on the window in a size corresponding to the size of the window; and a window information holding means for holding the position, size and window number of the window. , Figure position holding means that holds the position information of the figure, and the window according to the window creation instruction from the figure processing program. (C) The position, size and window number of the window are notified to the graphic display means to create a window, and the position, size and window number of the window are output to the window information holding means to be held and designated by the graphic processing program. A graphic output means for notifying the graphic display means of a graphic display instruction to a window having the specified window number to display the graphic and outputting graphic position information to the graphic position holding means for holding the graphic position, and a user. A user instruction input means for outputting the position on the display screen from the user, and a window held in the window information holding means centered on the position output from the user instruction input means Figure held by the figure position holding means assuming an area of a size corresponding to A figure selecting means for selecting a figure that overlaps with the area from among figures indicated to be displayed on the window with reference to the position information and notifying the figure processing program.