safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 V-IXtQR 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 VI/77 Dim aob, boc, cod, doa, sum As Single LS
<\%A} If ppx = p1x And ppy = p1y Then XC%u`UG point_in = True 2XNO*zbve Exit Function "]B:QeMeF! End If &( aw If ppx = p2x And ppy = p2y Then !UDTNF?1 point_in = True V 9bn Exit Function D.su^m_1 End If nF`_3U8e If ppx = p3x And ppy = p3y Then ,Y ./9F point_in = True E.45s? r Exit Function B _k+Oa2! End If C/_Z9LL?F 8Q4yllv4 aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) b9X"p*'p boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) b"k1N9 cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) 9#cPEbb~ doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) clyZD`* sum = aob + boc + cod + doa %OE
(?~dq If 360.01 > sum And sum > 359.99 Then h6`v%7H? point_in = True lsq\CavbM Else Ku$:. point_in = False }6b" JoC End If 21_sg f? End Function
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