JPH09120461A - Graphic editing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To unnecessitate the complicated operations by performing the rotation processing according to the drag operation of a user with the coordinate decided at a rotary shaft shift processing part defined as a rotation axis. SOLUTION: An operation mode changeover processing part 8 switches the editing operation mode to a rotation operation mode from a magnification/ reduction/deformation operation mode. When it is judged that a mouse button is depressed at a rotation operation end decision part 11, the input coordinate is compared with every vertex of a frame showing a range of editing object graphics. When it is decided that the input coordinate is included in an editing range, a drag point decision part 9 decides whether a drag state is set or a mouse button is depressed. When the drug state is confirmed, a rotation processing part 10 performs a coordinate operation to each of coordinates forming an editing object graphic for the rotation secured around the rotation axis coordinate based on the difference between the input coordinate set with the depression of the mouse button and the input coordinate set in the drag stare. Based on this operation result, the rotation processing is carried out for plotting the editing object graphic on a screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a figure editing apparatus for inputting with a pointing device such as a mouse or a stylus pen.

[0002]

2. Description of the Related Art In recent years, an information terminal represented by a personal computer has a GUI (Graphical Use).
r Interface) environment has become commonplace, and a mouse is widely used as an input device. In addition, portable information terminals, which eliminate the keyboard and perform almost all input with a stylus pen, are becoming popular. The graphic editing application in such an information terminal has a user interface for editing operations that makes use of the characteristics of a pointing device such as a mouse or a stylus pen. More specifically, the graphic editing application has icons and menus to which various editing operations are assigned, and the user performs graphic editing operations by selecting an icon or menu indicating a desired operation with the pointing device. be able to. However, in figure editing work, it can be said that it is more desirable to directly operate the figure to be edited than to select an icon or menu. The conventional graphic editing application is also devised so that editing operations such as enlargement / reduction / deformation can be performed by directly designating the graphic after selecting the graphic to be edited.

[0003]

In the conventional user interface environment of a graphic editing application, when a graphic is rotated, in order to switch between an edit mode such as enlargement / reduction / deformation and a rotation edit mode,
It is common to select an icon or a menu, but it is difficult to say that this is the best user interface since it is necessary to specify a part other than the figure to be edited.
In addition, the point for enlarging / reducing / deforming and the line segment for rotation are simultaneously displayed from the time of selecting the figure, and the line segment is designated and moved by the pointing device, so that the rotation editing can be performed without switching the editing mode. Although there is also a figure editing application that makes it possible, if the rotation operation is not necessary, the display of the line segment is useless, and especially when the figure to be edited is small, it is intended to perform operations such as deformation, but by mistake I am going to rotate it, or I plan to perform rotation operation,
There is a risk of erroneous operation such as accidental deformation. Furthermore, the rotation axis during the rotation operation in the conventional graphic editing application is limited to either the center of the edit target figure or the apex of the frame indicating the range of the edit target figure, and the rotary axis can be moved to arbitrary coordinates. I had a problem that I could not.

Therefore, the present invention enlarges / reduces / reduces in graphic editing using a pointing device as an input device.
Prevents erroneous operations due to a mixture of deformation operation mode and rotation operation mode, and realizes switching between enlargement / reduction / deformation operation mode and rotation operation mode at the same time by direct designation of the figure to be edited that does not require selection of icons and menus, and pointing device It is an object of the present invention to provide a graphic editing device having an excellent user interface that takes advantage of the features of.

[0005]

To this end, the graphic editing apparatus according to the present invention includes a rotary axis determining section for detecting whether or not any of the vertices of a frame indicating the range of a graphic to be edited is double-clicked by the user. A rotation axis display section that clearly indicates the apex designated by the user as a rotation axis, a drag point determination section that determines whether the coordinates in the frame other than the rotation axis for the rotation operation are designated by the user, and a rotation A processing unit, a rotation operation completion determination unit that determines whether the user has performed an operation to complete the rotation operation, and a scaling operation from the enlargement / reduction / deformation operation mode to the rotation operation mode based on the determination result of the rotation axis determination unit. And the rotation operation mode based on the determination result of the rotation operation completion determination unit
An operation mode switching processing unit for making a transition to the modified operation mode is provided.

Further, preferably, the drag point determination unit has a function of detecting whether or not the rotation axis is dragged,
A rotation axis movement processing unit that moves the coordinates of the rotation axis to the designated coordinates of the pointing device when the rotation axis is dragged by the determination result of the drag point determination unit is provided.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, by adopting the above-mentioned configuration, the vertex of the frame indicating the range of the figure to be edited designated by the user with the pointing device is regarded as the rotation axis by the rotation axis determination unit, and the operation mode is set. The switching processing unit switches from the enlargement / reduction / deformation operation mode to the rotation operation mode, and the rotation processing unit performs the rotation processing with the coordinate determined by the rotation axis movement processing unit as the rotation axis according to the user's drag operation. .

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a graphic editing apparatus according to a first embodiment of the present invention, FIG. 2 is a functional block diagram of a graphic editing apparatus according to a first embodiment of the present invention, and FIG. 3 is a first embodiment of the present invention. FIG. 4 is a flow chart for explaining the operation of the graphic editing apparatus of the embodiment, and FIG. 4 is a specific example diagram for explaining the operation of the graphic editing apparatus of the first embodiment of the present invention. In FIG. 1, 1 is a pointing device for designating arbitrary coordinates on a display screen, 2 is a central processing unit (CPU) for controlling the apparatus according to a control program, and 3 is a display for displaying a screen such as a graphic editing application. apparatus,
4 is a program storage area 4a for storing a control program
A read-only memory (ROM) 5 having a designated figure data storage area 5a for storing the data of the figure designated on the screen and the vertex coordinates of the frame indicating the range of the figure to be edited.
Is a random access memory (RAM).

In FIG. 2, reference numeral 6 is a rotation axis determination unit for determining whether the coordinates designated by the operator with the pointing device 1 such as a mouse or a stylus pen can be the rotation axis of the figure to be edited, and 7 is a rotation axis. A rotation axis display unit that displays an icon for indicating to the user that the coordinates determined by the axis determination unit 6 is a rotation axis, and 8 switches between enlargement / reduction / deformation operation mode and rotation operation mode according to the user's editing operation. An operation mode switching processing unit 9, a drag point determination unit 10 for determining whether or not the user is dragging the edit target figure with the pointing device 1 in the rotation operation mode, 10 is an edit target figure according to the coordinate value instructed by the user during dragging. A rotation processing unit that performs a rotation calculation of each of the constituent coordinates and displays a figure composed of the coordinates of the calculation result. Is a rotational operation completion determining unit determines whether performed an operation for a user to complete a rotation operation.

Next, the operation of the graphic editing apparatus configured as described above will be described with reference to the flowchart of FIG. 3 and the specific example of FIG. In the present embodiment,
A mouse will be described as an example of the pointing device 1. Further, in the figure editing application, as shown in FIG. 4A, a figure to be edited is input and the figure is selected as an edit target, and data such as coordinate values forming the figure and the range of the figure to be edited It is premised on the present embodiment that the vertex coordinates of the frame indicating is stored in the designated figure data storage area 5a. The procedure of figure input and selection in figure editing is well known and is not directly related to the present embodiment, and therefore its description and illustration are omitted here.

First, the rotation axis determination unit 6 waits for a mouse button input and determines whether or not a double click has been performed (step S1). If it is determined in step S1 that the user has not double-clicked, the process returns to step S1 to wait for mouse button input. When it is determined that the double-click is performed, it is determined whether the input coordinate of the double-click matches any one of the vertex coordinates of the frame indicating the range of the figure to be edited stored in the designated figure data storage area 5a (step S2). . If it is determined in step S2 that they do not match, the process returns to step S1. When it is determined that the input coordinates and the vertex coordinates match as shown in FIG. 4B, the rotation axis display unit 7 displays an icon indicating the rotation axis at the input coordinates (step S3). A specific example of step S3 is shown in FIG.

Next, the operation mode switching processing unit 8 switches the edit operation mode from the enlargement / reduction / deformation operation mode to the rotation operation mode (step S4), and the process proceeds to step S5. By switching the operation mode in step S4,
Mouse button input after step S5 is processed as a rotation operation mode. Next, the rotation operation completion determination unit 11 waits for a mouse button input and determines whether or not the mouse button has been pressed (step S5). Step S5 is repeated until the mouse button is pressed, and when it is determined that the mouse button is pressed, the input coordinates when the mouse button is pressed are compared with the respective vertex coordinates of the frame indicating the range of the figure to be edited, and the input coordinates are the rotation axis coordinates. It is determined whether it is within the editing range excluding (step S6). When it is determined in step S6 that the input coordinates are out of the edit range, it is considered that the user has canceled the rotation operation, and the operation mode switching processing unit switches the rotation operation mode to the enlargement / reduction / deformation operation mode. (Step S9), and the present embodiment ends.

When it is determined in step S6 that the input coordinates are within the editing range, the drag point determination unit 9 determines whether the drag state is present, that is, the mouse button is pressed (step S7). ), If it is in the drag state, the rotation processing unit 10 rotates about the rotation axis coordinate for each coordinate forming the edit target figure from the difference between the input coordinate when the mouse button is pressed and the input coordinate in the drag state. Is performed, and a rotation process is performed to draw an edit target figure on the screen based on the calculation result (step S8). A specific display example of the rotation processing is shown in FIG. Further, the rotation processing unit 10 regards the user as continuing the rotation operation until the dragged state is released, and repeats Step S7 and Step S8. When it is determined in step S7 that the drag has been released, the process returns to step S5.

With the above configuration and processing procedure, the user is provided with a graphic editing device capable of rotating a graphic to be edited by pointing the graphic to be edited with a mouse without selecting a menu or icon for changing the operation mode. can do.

FIG. 5 is a functional block diagram of the graphic editing apparatus according to the second embodiment of the present invention, FIG. 6 is a flow chart for explaining the operation of the graphic editing apparatus according to the second embodiment of the present invention, and FIG. FIG. 9 is a specific example diagram for explaining the operation of the graphic editing device according to the second embodiment of the present invention. In FIG. 5, 6
Is a rotation axis determination unit, 7 is a rotation axis display unit, 8 is an operation mode switching processing unit, 9 is a drag point determination unit, 10 is a rotation processing unit, and 11 is a rotation operation completion determination unit. Therefore, the same reference numerals are given and description thereof will be omitted. Reference numeral 12 denotes a rotation axis movement processing unit that moves the rotation axis coordinates in accordance with the subsequent drag state when the rotation operation completion determination unit 11 determines that the user has designated the rotation axis coordinates.

Next, the operation of the graphic editing apparatus configured as described above will be described with reference to the flowchart of FIG. 6 and the specific example of FIG. In the second embodiment, the pointing device 1 is used as in the first embodiment.
A mouse will be described as an example. Further, in the figure editing application, as shown in FIG. 7A, a figure to be edited is input and the figure is selected as an edit target, and data such as coordinate values constituting the figure and the range of the figure to be edited It is premised on the second embodiment that the apex coordinates of the frame indicating is stored in the designated figure data storage area 5a. A procedure for inputting and selecting a figure in figure editing is well known and is not directly related to the second embodiment, and therefore its description and illustration are omitted here.

First, the rotation axis determination unit 6 waits for a mouse button input and determines whether or not a double click has been performed (step S1). If it is determined in step S1 that the user has not double-clicked, the process returns to step S1 to wait for mouse button input. When it is determined that the double-click is performed, it is determined whether the input coordinate of the double-click matches any one of the vertex coordinates of the frame indicating the range of the figure to be edited stored in the designated figure data storage area 5a (step S2). . If it is determined in step S2 that they do not match, the process returns to step S1.

When it is determined that the input coordinates and the vertex coordinates match as shown in FIG. 7B, the rotation axis display section displays an icon indicating the rotation axis at the input coordinates (step S3). A concrete example of step S3 is shown in FIG. Next, the operation mode switching processing unit 8 switches the edit operation mode from the enlargement / reduction / deformation operation mode to the rotation operation mode (step S4), and proceeds to step S5. By the operation mode switching in step S4, the mouse button input after step S5 is processed as the rotation operation mode.

Next, the rotation operation completion determining unit 11 waits for a mouse button input and determines whether or not the mouse button has been pressed (step S5). Repeat step S5 until the mouse button is pressed, and if it is determined that the mouse button has been pressed,
The input coordinates when the mouse button is pressed are compared with the vertex coordinates of the frame indicating the range of the edit target figure, and it is determined whether the input coordinates are within the edit range excluding the rotation axis coordinates (step S
6). When it is determined in step S6 that the input coordinates are out of the editing range, it is considered that the user immediately cancels the rotation operation in the first embodiment, and the operation mode switching processing unit enlarges / reduces / rotates the rotation operation mode. Although the editing operation mode was switched to the deformation operation mode (step S9) and the operation was finished, it is further determined in the second embodiment whether or not the input coordinates match the rotation axis coordinates (step S1).
0). If it is determined in step S10 that they do not match, that is, if the coordinates designated by the user during the rotation operation mode are neither within the edit frame nor on the rotation axis, it is considered that the user has canceled the rotation operation. The operation mode switching processing unit 8 switches the edit operation mode from the rotation operation mode to the enlargement / reduction / deformation operation mode (step S
9), the operation ends.

If it is determined in step S10 that they match, whether the rotation axis movement processing unit 12 is in the drag state,
That is, it is determined whether or not the mouse button is pressed (step S11). If the mouse button is in the dragged state, the input coordinate in that state is set as a new rotary axis coordinate, and an icon indicating the rotary axis is displayed at this coordinate ( Step S1
2). Until the dragged state is released, it is considered that the user is continuing the rotary axis moving operation, and steps S11 and S12 are repeated. Step S10 to Step S
Specific examples of the operation of 12 are shown in FIGS.

When it is determined in step S11 that the dragging state has been released, it is considered that the user has completed the rotary axis moving operation, and the process returns to step S5. When it is determined in step S6 that the input coordinates are within the editing range, the drag point determination unit 9 determines whether the dragging state, that is, the mouse button is pressed (step S6).
7) If it is in the drag state, the rotation processing unit 10
From the difference between the input coordinates when the mouse button is pressed and the input coordinates when the mouse is dragged, coordinate calculation for rotation around the rotation axis coordinate is performed for each coordinate that constitutes the editing target figure, and the editing target is based on the calculation result. A rotation process for drawing a figure on the screen is performed (step S8). A specific display example of the rotation processing is shown in FIG. Also, the rotation processing unit 10
Until the dragged state is released, it is considered that the user continues the rotating operation, and steps S7 and S8 are repeated. When it is determined in step S7 that the drag has been released, it is considered that the rotation operation has been completed, and the process returns to step S5.

With the configuration and processing procedure described above, the figure to be edited can be rotated by pointing the figure to be edited with the mouse without selecting a menu or icon for changing the operation mode, and the axis of rotation can be arbitrarily set. It is possible to provide the user with a graphic editing device that can move to the coordinates.

[0023]

According to the figure editing apparatus of the present invention, in a figure editing application for inputting with a pointing device such as a mouse or a stylus pen, the apex of the frame indicating the range of the figure to be edited designated by the user with the pointing device is the rotation axis. The determination unit regards it as a rotation axis, the operation mode switching processing unit switches from the enlargement / reduction / deformation operation mode to the rotation operation mode, and the rotation determined by the user's drag operation is the coordinate determined by the rotation axis movement processing unit as the rotation axis. Since the processing is configured to be performed by the rotation processing unit, it is possible to prevent erroneous operations due to the mixture of the enlargement / reduction / deformation operation mode and the rotation operation mode, which are involved in conventional graphic editing, and to avoid complicated operations such as selecting icons and menus. Enlargement / reduction / deformation operation by direct instruction of edit target figure Realizing switching over de the rotation operation mode at the same time, and it becomes possible to move the rotation axis during rotational operation of the graphic to arbitrary coordinates.

[Brief description of the drawings]

FIG. 1 is a block diagram of a graphic editing device according to a first embodiment of the present invention.

FIG. 2 is a functional block diagram of the graphic editing device according to the first embodiment of the present invention.

FIG. 3 is a flowchart for explaining the operation of the graphic editing device according to the first embodiment of the present invention.

FIG. 4 is a specific example diagram for explaining the operation of the graphic editing apparatus according to the first embodiment of the present invention.

FIG. 5 is a functional block diagram of a graphic editing device according to a second embodiment of the present invention.

FIG. 6 is a flowchart for explaining the operation of the graphic editing device according to the second embodiment of the present invention.

FIG. 7 is a specific example diagram for explaining the operation of the graphic editing apparatus according to the second embodiment of the present invention.

[Explanation of symbols]

 1 Pointing device 2 Central processing unit 3 Display device 4 Read only memory 4a Program storage area 5 Random access memory 5a Designated figure data storage area 6 Rotation axis determination unit 7 Rotation axis display unit 8 Operation mode switching processing unit 9 Drag point determination unit 10 Rotation Processing Unit 11 Rotation Operation Completion Determination Unit 12 Rotation Axis Movement Processing Unit

Claims (2)

[Claims] 1. A rotation axis determination unit for detecting whether or not a user double-clicks any of the vertices of a frame indicating the range of a figure to be edited, and a rotation axis display for displaying the double-clicked vertex as a rotation axis. And a drag point determination unit that determines whether coordinates in the frame other than the rotation axis for a rotation operation are designated by a user,
A rotation processing unit, a rotation operation completion determination unit that determines whether the user has performed an operation to complete the rotation operation, and an enlargement / reduction / deformation operation mode based on the determination result of the rotation axis determination unit to a rotation operation mode. And a manipulation mode switching processing unit that shifts from the rotation manipulation mode to the enlargement / reduction / deformation manipulation mode based on the determination result of the rotation manipulation completion determination unit. 2. The drag point determination unit has a function of detecting whether or not the rotation axis is dragged, and when the rotation axis is dragged according to the determination result of the drag point determination unit, the rotation axis is moved to the pointing coordinate of the pointing device. 2. The graphic editing apparatus according to claim 1, further comprising a rotation axis movement processing unit that moves the coordinates of.