safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 8'HEms 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 }|h# \$w Dim aob, boc, cod, doa, sum As Single R`NYEptJ If ppx = p1x And ppy = p1y Then f z'@_4hg point_in = True ZF!h<h&, Exit Function cN/6SGHK End If ^9v4O UG If ppx = p2x And ppy = p2y Then `KZm0d{H point_in = True d[iQ`YW5 Exit Function h79}qU End If E>6MeO If ppx = p3x And ppy = p3y Then P_F30x( point_in = True is?{MJZ_ Exit Function ?g_3 [Fk End If R$R *'l \j$&DCv aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) Y`~Ut:fZ boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) '{cIAw/"n cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) S\CCrje doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) /:cd\A} sum = aob + boc + cod + doa A#e%^{q$ If 360.01 > sum And sum > 359.99 Then 9SX + point_in = True hZ|z|!g0 Else \[;0KV_ point_in = False cn3#R.G~ End If fW?vdYF End Function
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