A process for providing a vector image with removed hidden...

Details A process for providing a vector image with removed hidden... A process for providing a vector image with removed hidden...

G - Physics

06

T

G06T 15/00 (2006.01) G06T 15/40 (2006.01) G06T 17/40 (2006.01)

Patent

CA 2475345

For computing a vector image of a view of a modelled object with removed hidden lines, a bitmap image of the modelled object, with removed hidden lines is first computed (22) in a graphic card. For each line of the modelled object, a raster of the line in the same view is computed (26). The pixels of the raster are compared (30) with corresponding pixels of the bitmap image, to determine whether there exists in the bitmap image pixels corresponding to the pixels of the raster. According to the results of the comparison, the visible parts of the line are determined (38).

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