| safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 #&c}in"! 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 =9vmRh?8 Dim aob, boc, cod, doa, sum As Single {!vz 6QDS If ppx = p1x And ppy = p1y Then SwPc<Z?P point_in = True o*WI*Fb' Exit Function z"lRfOWI End If sp$W=Wu7 If ppx = p2x And ppy = p2y Then OQh(qa point_in = True c{t(),nAA Exit Function h|Uy!?l
End If 2*1s(Jro If ppx = p3x And ppy = p3y Then e#$ZOK)` point_in = True hgi9%>oUB Exit Function l~Sn`%PgA End If - '5OX/Szq a<K@rgQ aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) Ju7nvxC boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) $?u ^hMU= cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) r-a/vx# doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) 1JoRP~mMxa sum = aob + boc + cod + doa ]%5DuE\M8\ If 360.01 > sum And sum > 359.99 Then Zj8aD-1]U^ point_in = True Lqv5"r7eV Else ii@O&g point_in = False DHV#PLbN$ End If i
XI:yE; End Function
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