发明名称 |
Rapid line drawing in computer graphics employing floating-point arithmetic |
摘要 |
Three terms (X,Y,"Error") are combined in a single floating-point number in an advanced microprocessor to compute pixel addresses. The floating-point number is reconverted to integer form in multiplexers operating in a mode determined by slope, relative to unity, of the line to be defined by the pixels. The output of the multiplexers is enhanced by a look-up table to produce color data, which are converted to analog form for display. Speed of operation is greatly augmented by the use of floating-point arithmetic to compute the pixel addresses.
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申请公布号 |
US5375196(A) |
申请公布日期 |
1994.12.20 |
申请号 |
US19930040079 |
申请日期 |
1993.03.30 |
申请人 |
CALCOMP INC. |
发明人 |
VATTI, BALA R.;DUCKWORTH, MARK R.;HAMMOND, ROBERT L. |
分类号 |
G06T11/20;(IPC1-7):G06F15/62 |
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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