发明名称 |
Sampling point generating apparatus |
摘要 |
A sampling point generating apparatus generates sampling points on an original curve even at gentle slope portions of the original curve and, according to the sampling points, provides a curve that closely approximates the original curve. To accomplish this function, the apparatus has a unit for drawing a straight line between the start and end points of the original curve; a unit for calculating errors between the coordinates of the original curve and the coordinates of the straight line; a unit for detecting extremal value points, where increase or decrease in the errors is reversed, according to the errors; and a unit for generating intermediate points among the extremal value points. The extremal value points and intermediate points are used as sampling points to provide a cubic curve that closely approximates the original curve.
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申请公布号 |
US5568601(A) |
申请公布日期 |
1996.10.22 |
申请号 |
US19940273852 |
申请日期 |
1994.07.12 |
申请人 |
FUJITSU LIMITED |
发明人 |
YAMAUCHI, TOSHIYA;YUTANI, YOSHIKAZU;TOYODA, RIKA |
分类号 |
G09G5/24;G06T3/00;G06T11/20;(IPC1-7):G06F15/00 |
主分类号 |
G09G5/24 |
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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