发明名称 |
CURVE RENDERING DEVICE, CURVE RENDERING METHOD, PARKING SUPPORT SYSTEM AND VEHICLE |
摘要 |
PROBLEM TO BE SOLVED: To render an appropriately thickened curve with display scanning by simple arithmetic processing without using a frame buffer. SOLUTION: A coordinate computation means 2 calculates coordinates to be rendered from an input mathematical expression of an original curve. A gradient computation means 3 calculates the gradient of a tangent to the original curve. A horizontal thickening means 4 computes to thicken the original curve horizontally. A vertical thickening means 5 computes to thicken the original curve vertically and convert it into a horizontal vector. A selection means 6 switches between the use of the computation of the horizontal thickening means 4 and the use of the computation of the vertical thickening means 5 according to the tangent gradient calculated by the gradient computation means 3. An output means 8 outputs an image signal for each pixel with the scanning of a display screen. A curve thickened from the original curve can thus be rendered. COPYRIGHT: (C)2007,JPO&INPIT |
申请公布号 |
JP2006338603(A) |
申请公布日期 |
2006.12.14 |
申请号 |
JP20050165752 |
申请日期 |
2005.06.06 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
IGUCHI HIDEYUKI |
分类号 |
G06T11/20 |
主分类号 |
G06T11/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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