发明授权
- 专利标题： Method and apparatus for generating high-quality pattern in accordance with an edge defining a character pattern
- 专利标题（中）： 根据定义字符图案的边缘产生高质量图案的方法和装置
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申请号： US337512申请日： 1994-11-08
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公开(公告)号： US5428719A公开(公告)日： 1995-06-27
- 发明人: Fumitaka Sato
- 申请人： Fumitaka Sato
- 申请人地址： JPX Kawasaki
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX1-87333 19890406
- 主分类号： G06T11/40
- IPC分类号： G06T11/40
摘要：
A projection section sequentially determines lattice points one by one in response to an input projection start command while the lattice points for approximating segments constituting a line drawing in units of segments have an 8-point connecting relationship, determines a change in state of a winding number of a plot-target-lattice point on the basis of a lattice point moving direction determined by a mutual position relation between the present plot-target-lattice point and its adjacent lattice points for approximating the segment, computes a tangential vector or its components of the present plot-target-lattice point and its adjacent segments, determines the next plot-target-lattice point, projects input size-changed edge lines in a code pattern memory in units of points while the winding number (WN) codes of the corresponding points stored in the code pattern memory are updated by the WN codes determined in units of points, and generates a projection completion response when projection of the size-changed edge lines is completed.
公开/授权文献
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