| safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 P*[wB_^&UP 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 $J4)z&%dr Dim aob, boc, cod, doa, sum As Single ;Mmu} If ppx = p1x And ppy = p1y Then jcC"vr'u| point_in = True jjrE8[ Exit Function Xtz29 End If ]?V:+>t= If ppx = p2x And ppy = p2y Then vMY!Z1.* point_in = True {^Q,G x( Exit Function O:'qwJ#~ End If Ze/\IBd If ppx = p3x And ppy = p3y Then F7<u1Rx] point_in = True leF!Uog Exit Function !5'4FUlJ End If h}tC+_"D By9CliOy: aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) ;I@\}!%H boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) Y9-F\t=~ cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) 7z{N} doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) P(-
sum = aob + boc + cod + doa r(>812^\ If 360.01 > sum And sum > 359.99 Then *N: $,xf point_in = True k&L/JzzI Else Txl|F\nK` point_in = False d=D#cs;\ End If cBbumf 9C End Function
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