Method and system for fast clipping of line segments
First Claim
Patent Images
1. A computer-implemented method, comprising:
- determining a rendering region based on panning increments received for panning a previously rendered frame of a static graphic image;
clipping a candidate segment against the rendering region to obtain at least one clipped segment contained within the rendering region; and
rendering the at least one clipped segment and copying a portion of the previously rendered frame to provide a panned frame.
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Abstract
A method of static graphics rendering in a mobile device. Panning increments are received for panning a previously rendered frame to a panned frame. A rendering region is then determined based on the panning increments. A candidate line segment or polyline is then clipped to create clipped line segments contained within the rendering region. The clipped line segments can then be rendered, and a portion of the previously rendered frame can be copied, to provide the panned frame.
17 Citations
15 Claims
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1. A computer-implemented method, comprising:
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determining a rendering region based on panning increments received for panning a previously rendered frame of a static graphic image; clipping a candidate segment against the rendering region to obtain at least one clipped segment contained within the rendering region; and rendering the at least one clipped segment and copying a portion of the previously rendered frame to provide a panned frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A non-transitory computer-readable medium having computer-readable code embodied therein for execution by a processor at a computing device for:
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determining a rendering region based on panning increments received for panning a previously rendered frame of a static graphic image; clipping a candidate segment against the rendering region to obtain at least one clipped segment contained within the rendering region; and rendering the at least one clipped segment and copying a portion of the previously rendered frame to provide a panned frame. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification