| safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 3<#4 Function point_in(p1x As Single, p1y As Single, p2x As Single, p2y As Single, p3x As Single, p3y As Single, p4x As Single, p4y As Single, ppx As Single, ppy As Single) As Boolean C {gYrz) Dim aob, boc, cod, doa, sum As Single UjUDP>iz.> If ppx = p1x And ppy = p1y Then p e |k}{ point_in = True {
+MqXeq Exit Function ;}WdxWw4 End If ?tg(X[h{S If ppx = p2x And ppy = p2y Then 6E85mfFS point_in = True E*i <P Exit Function ,accw}G End If S"V|BU If ppx = p3x And ppy = p3y Then ig)rK<@*[ point_in = True mi6<;N2w| Exit Function 9^x'x@6 End If |?i-y3N G"3D"7fa aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) mO(m%3 boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) Z<;am cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) +)dQd T0Fq doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) gfR B sum = aob + boc + cod + doa ZQZ>{K If 360.01 > sum And sum > 359.99 Then ]|@RWzA point_in = True {?$-p%CF`8 Else XSkx<"U* point_in = False UW88JA0 End If o!dTB,Molr End Function
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