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楼主 |
发表于 2006-11-22 11:28:00
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Re:????????????
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?????title????160 * 80?(x, y)?????????(x0, y0)???????
?????????????:
????x??????????????x??1. ?????????x0??
80, y0??40.?y??1.???x0??80?y0??40????????
x0 = 80 * (x - y)
y0 = 40 * (x + y)
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x0 = 80x - 80y
2y0 = 80x + 80y
???
x0 + 2y0 = 160x
x = (x0 + 2y0) / 160
2y0 - x0 = 160y
y = (2y0 - x0) / 160
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