| safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 bX2BEa8<" 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 ~!Sd|e:4 Dim aob, boc, cod, doa, sum As Single m"~ddqSMT If ppx = p1x And ppy = p1y Then }=EJM7sM|k point_in = True }iKjef#J Exit Function :7 LA/j End If yP3I^>AZ3 If ppx = p2x And ppy = p2y Then ;l!<A point_in = True =,zB|sjn Exit Function Ct-eD-X{ End If AI3x,rk# If ppx = p3x And ppy = p3y Then >s/_B//[ point_in = True ({rcH.: Exit Function j.] ]VA End If ZX&e,X~V f@;pN=PS aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) -sA&1n"W&5 boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) dUa>XkPa\2 cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) goiI*"6M doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) !$l<'K$ sum = aob + boc + cod + doa !T<,fR+8X If 360.01 > sum And sum > 359.99 Then L[2N zwO point_in = True /#vt\I<x Else H4`>B>\ point_in = False Ydrh+ End If BGi'UL, End Function
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