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System and method for drawing and painting with warped bitmap brushes

  • US 7,158,138 B1
  • Filed: 06/23/2000
  • Issued: 01/02/2007
  • Est. Priority Date: 12/30/1998
  • Status: Expired due to Fees
First Claim
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1. A method of drawing a brush stroke with a bitmap brush, the bitmap brush comprising a bitmap image having pixels, the brush stroke rendered relative to a guideline, the guideline specifying an arbitrary path for the brush stroke, the method implemented by a computing device and comprising:

  • determining a first polygon on the guideline;

    determining a first segment in the bitmap brush corresponding to the first polygon on the guideline, the first segment in the bitmap brush comprising a first portion of the bitmap image;

    applying a first transformation to the first portion of the bitmap image mapped in the first segment in the bitmap brush to generate a corresponding bitmap image in the first polygon on the guideline to create a first segment of the brush stroke; and

    displaying the first segment of the brush stroke on a display device.

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