'判断点在区域内函数 C -4NiXa
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 qG3 [5lti
Dim aob, boc, cod, doa, sum As Single q/ -8sO}q
If ppx = p1x And ppy = p1y Then n~N>c*p
point_in = True ),%/T,!@
Exit Function 0:UK)t)3I
End If D(xgadr
If ppx = p2x And ppy = p2y Then wOQ-sp0q0
point_in = True `"QUA G
Exit Function R>H*MvN
End If Qx CZ <|
If ppx = p3x And ppy = p3y Then .CH0P K=l
point_in = True 0.S].Y[
Exit Function |1J=wp)#
End If d
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vf(8*}'!Q
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) L'=2Uk#.D
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) E15"AO
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) JmdXh/X
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) c7T9kV 8hS
sum = aob + boc + cod + doa (UmoG
If 360.01 > sum And sum > 359.99 Then <(W0 N|1v
point_in = True bf2R15|t5`
Else ^ a%U *>P
point_in = False Wh[+cH"M
End If o<P@:}K
End Function
