| safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 @[joM*U 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 *CGHp8 Dim aob, boc, cod, doa, sum As Single #IGcQY If ppx = p1x And ppy = p1y Then *0oa2fz% point_in = True R6X2d\l# Exit Function 8Y% End If `6-flc0r If ppx = p2x And ppy = p2y Then b&A/S$* point_in = True \RDqW+, Exit Function t,TlW^- End If rhzI*nwOT If ppx = p3x And ppy = p3y Then 5Bq;Vb point_in = True ug{sQyLN Exit Function ~tTa[_ a! End If dH0>lV e+#Oj aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) &:C[
n q boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) ?0u"No52m cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) >r)UDa+ doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) Ib2&L sum = aob + boc + cod + doa ~BTm6*'h If 360.01 > sum And sum > 359.99 Then p\I3 fI0i point_in = True \8*j"@ !H Else [
s/j?/9 point_in = False OWfB8*4@ End If sMAH;'`!Eu End Function
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