JPH04330573A - Partial magnifying method for graphic - Google Patents

Abstract

PURPOSE:To easily perform a graphic operation as recognizing the whole drawing by always displaying a partially magnified partial magnifying graphic on a window centering a cross-hair cursor, and performing edit such as deletion. CONSTITUTION:The window 2 is opened centering the cross-hair cursor 1. Thereby, the window 2 of size designated in advance can be opened at the position of intersection of the cross-hair cursor 1. Graphic data is always displayed by magnification with prescribed magnification ratio on the window 2. The edit such as the deletion of the partial magnifying graphic displayed on the window 2 can be executed for the small number of times of operation by operating the partial magnifying graphic displayed on the window 2 as easily recognizing correspondence relation with the whole graphic by selecting a deletion command and deleting by picking up a target to be deleted.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a method for partially enlarging a figure on a screen, and more particularly, to a method for partially enlarging a figure when enlarging and editing a figure in a CAD system. It is.

0002

[Prior Art] Conventionally, in a CAD system, when editing a certain figure by enlarging it and deleting a part, as shown in Fig. 3, the following steps are taken: ■ Specify the enlargement range with two points and execute the enlargement command. ②Pick the figure to be deleted from among the partially enlarged figures and execute the delete command to delete it; ②Press the function key's enlargement reset button to return to the original drawing state. This will be briefly explained below.

In FIG. 3, ■ is a diagram of a house as shown on the screen, and the area to be enlarged is clicked on the lower left and upper right of the area as shown in the figure to enlarge the area. Specify and execute the enlarge command. ■ indicates an enlarged figure displayed on the entire screen by executing an enlargement command that specifies the enlargement range of ■. From among the enlarged figures, specify the figure to be deleted by clicking it as if it were an "X", and execute the delete command to delete it.

[0004] ■ indicates a state in which the drawing is deleted by executing the delete command (■) and then the enlargement reset button of the function key is pressed to return to the original drawing state. This will delete the horizontal line of the chimney of the house in the drawing. As mentioned above,
When I try to edit such as deleting a minute part from the drawing in ■, I have to specify two points in the enlargement range, execute the enlargement command, specify the figure to be deleted, execute the deletion command, and press the enlargement reset button of the function key. However, it requires a large number of operations, which is cumbersome.

[0005]

[Problem to be solved by the invention] For this reason, the above
, ■ increases the number of operations, and there is a problem that a large number of operations are required for detailed drawings. Furthermore, since the drawing is partially enlarged, it is difficult to understand its relationship with the whole, and there is a problem in that other lines may be deleted by mistake.

[0006] The present invention opens a window at the center of the crosshair cursor, always displays the partially enlarged figure in this window, and performs editing such as deletion, thereby reducing the number of operations during partially enlarging and resolving the problem between the partially enlarged figure and the original. The purpose is to make it easier to understand the correspondence with the overall figure.

[0007]

[Means for Solving the Problems] Means for solving the problems will be explained with reference to FIG. In FIG. 1, window 2 is a window opened at the center of crosshair cursor 1. On this window 2, a partially enlarged figure centered on the crosshair cursor 1 is always displayed.

The partial enlargement function 5 uses the crosshair cursor 1
A window 2 is opened at the center of the crosshair cursor 1, and a partially enlarged figure is always displayed on the window 2 with the crosshair cursor 1 as the center.

[0009]

[Operation] As shown in FIG.
opens window 2 at the center of crosshair cursor 1, always displays a partially enlarged figure centered on crosshair cursor 1 in window 2, and from this partially enlarged figure,
For example, in response to a portion to be deleted and an instruction to execute a deletion command, that portion is deleted.

Therefore, by opening the window 2 at the center of the crosshair cursor 1 and always displaying the partially enlarged figure in this window 2, it is possible to reduce the number of operations when enlarging a partially, and also to improve the relationship between the partially enlarged figure and the original whole figure. It becomes possible to display correspondence relationships in an easy-to-understand manner.

[0011]

Embodiment Next, the structure and operation of an embodiment of the present invention will be explained in detail with reference to FIGS. 1 and 2. In FIG. 1, a crosshair cursor 1 is a thin line cursor displayed on the screen, and the position where these thin line cursors cross is a designated point.

The window 2 is a window opened centered on the intersection of the crosshair cursors 1, and always displays a partially enlarged figure obtained by enlarging the original figure centered at the intersection at a predetermined magnification. Memory 3 stores figures displayed on the screen, crosshair cursor 1, and window 2.
It is a memory that expands etc.

[0013] The CAD system 6 is for drawing figures, and here it is used for editing figures (creating, changing, adding,
It consists of a figure editing command 4 for performing (deletion, etc.), a partial enlargement function 5 related to this embodiment, and the like. The partial enlargement function 5 opens a window 2 at the center of the crosshair cursor 1, or always displays a partially enlarged figure in which the original figure at the center of the crosshair cursor 1 is enlarged at a specified magnification in the window 2. etc.

Next, the operation of the configuration shown in FIG. 1 will be explained in detail in accordance with the order of the flowchart shown in FIG. In FIG. 2, S1 picks the command "window". This is activated by clicking on the command "Window" for opening a window in order to activate the partial enlargement function 5 according to this embodiment from the menu.

[0015] In step S2, a window 2 is opened with the crosshair cursor 1 in the center. As a result, as shown in FIG. 1, a window 2 of a predetermined size is opened at the intersection of the crosshair cursors 1. S3 always enlarges and displays the graphic data in window 2 at a predetermined magnification. As a result, as shown in Window 2 of Figure 1, a partially enlarged figure that is the original figure at the intersection of crosshair cursor 1 enlarged at a predetermined magnification centered on the intersection is always displayed in Window 2. Therefore, the correspondence between the original figure and the partially enlarged figure can be easily determined.

[0016] In S4, a "delete command" is selected. S
Step 5: Pick the figure to be deleted. These S4 and S5 are S
With the partially enlarged figure always displayed in window 2 in step 3, select the delete command for editing, and then pick the figure to be deleted, for example the horizontal line of the chimney, which is the partially enlarged figure in Figure 1. delete. As a result, by clicking the command "Window" in this example, window 2 is opened, a partially enlarged figure is always displayed in window 2 with this intersection as the center, and, for example, a delete command is selected on this partially enlarged figure. You can also pick and delete the shape you want to delete.

[0017] S6 picks the command "window" and erases window 2. S7 redisplays the entire figure. As described above, the crosshair cursor 1 is positioned in the vicinity of the figure to be edited from among the whole figures, the window 2 related to this embodiment is opened, and the enlargement rate specified in advance is set around the intersection of the crosshair cursor 1. Always display the partially enlarged figure (S1, S2, S3), and edit the partially enlarged figure displayed on this window 2, for example, select the delete command and pick the object to be deleted and delete it (S4, S5) By doing so, you can easily recognize the correspondence relationship with the whole figure while viewing window 2.
By operating the partially enlarged figure displayed above, editing such as deletion can be quickly executed with a small number of operations.

[0018]

[Effects of the Invention] As explained above, according to the present invention,
Window 2 is opened at the center of crosshair cursor 1, and a partially enlarged figure centered on crosshair cursor 1 is always displayed in window 2, and editing such as deletion is performed. The number of operations during enlargement can be reduced, and the correspondence between a partially enlarged figure and the original whole figure can be displayed in an easy-to-understand manner. This reduces the number of operations
It becomes possible to improve the efficiency of the AD system, and it becomes possible to easily and accurately perform graphic operations while grasping the entire drawing.

[Brief explanation of drawings]

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

FIG. 2 is a flowchart explaining the operation of the present invention.

FIG. 3 is an explanatory diagram of the prior art.

[Explanation of symbols]

1: Crosshair cursor 2: Window that displays partially enlarged figure 3: Memory 4: Shape editing command 5: Partial enlargement function 6: CAD system

Claims (1)

[Claims] Claim 1: In a partial enlargement method for partially enlarging a figure on a screen, a window (2) is opened at the center of a crosshair cursor (1), and a partially enlarged figure of a predetermined size of the figure at the center is enlarged in the window (2). ), and is configured so that editing can be performed in response to selection of a corresponding part of the figure and entry of an editing command.