GRAPHICS RENDERING AND EDITING APPARATUS AND METHOD

• US 20090251489A1
• Filed: 04/06/2009
• Published: 10/08/2009
• Est. Priority Date: 04/08/2008
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Sato, Noriaki, Iijima, Tadahiko
• Granted Patent: US 9,235,910 B2
• Time in Patent Office: Days
• US Class Current: 345/619
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T

Abstract

A graphics rendering and editing apparatus includes a rendering unit configured to render a graphic object, a position specifying unit configured to specify a pre-change position and a post-change position of an arbitrary point on the graphic object, an attribute specifying unit configured to specify a deformation attribute of the graphic object, the deformation attribute being related to how the graphic object is deformed as a position of the arbitrary point changes, and a deformation unit configured to deform, when the position specifying unit has specified the pre-change position and the post-change position the graphic object in accordance with the pre-change position, the post-change position, and the attribute specified by the attribute specifying unit.

Claims

1. A graphics rendering and editing apparatus, comprising:

a rendering unit configured to render a graphic object;

a position specifying unit configured to specify a pre-change position and a post-change position of an arbitrary point on the graphic object;

an attribute specifying unit configured to specify a deformation attribute of the graphic object, the deformation attribute being related to how the graphic object is deformed as a position of the arbitrary point changes; and

a deformation unit configured to deform, when the position specifying unit has specified the pre-change position and the post-change position, the graphic object in accordance with the pre-change position, the post-change position, and the attribute specified by the attribute specifying unit.

2. The graphics rendering and editing apparatus according to claim 1, wherein the deformation attribute of the graphic object includes a viscosity of a line of the graphic object when the line is assumed to be a viscous body.

3. The graphics rendering and editing apparatus according to claim 1, wherein the deformation attribute of the graphic object includes post-deform sharpness of a line of the graphic object.

4. The graphics rendering and editing apparatus according to claim 1, wherein the deformation attribute of the graphic object includes deformation speed of the graphic object.

5. The graphics rendering and editing apparatus according to claim 1, further comprising:

a changing unit configured to change the deformation attribute of the graphic object.

6. The graphics rendering and editing apparatus according to claim 1, further comprising:

a fixed point specifying unit configured to specify a point on a line of the graphic object, wherein a position of the point is fixed.

7. The graphics rendering and editing apparatus according to claim 1, wherein the deformation unit deforms the graphic object by adding a control point in accordance with the deformation attribute of the graphic object.

8. A method for rendering and editing graphics, the method comprising:

rendering a graphic object;

specifying a pre-change position and a post-change position of an arbitrary point on the graphic object;

specifying a deformation attribute of the graphic object, the deformation attribute being related to how the graphic object is deformed as a position of the arbitrary point changes; and

deforming, when the pre-change position and the post-change position have been specified in the step for specifying positions, the graphic object in accordance with the pre-change position, the post-change position, and the attribute specified in the step for specifying an attribute.

9. A computer readable recording medium storing a program that causes a computer to execute a method of rendering and editing graphics, the method comprising:

rendering a graphic object;

specifying a pre-change position and a post-change position of an arbitrary point on the graphic object;

specifying a deformation attribute of the graphic object, the deformation attribute being related to how the graphic object is deformed as a position of the arbitrary point changes; and

deforming, when the pre-change position and the post-change position have been specified in the step for specifying positions, the graphic object in accordance with the pre-change position, the post-change position, and the attribute specified in the step for specifying an attribute.