'判断点在区域内函数 rrbZ+* U
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 ZIDFF
Dim aob, boc, cod, doa, sum As Single Fu#Y7)r
If ppx = p1x And ppy = p1y Then [;Vi~$p|Eo
point_in = True >[
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Exit Function :S#eg1y.w]
End If i4 P$ wlO
If ppx = p2x And ppy = p2y Then *P&OxVz
point_in = True Yo>%s4_ ,
Exit Function oUCS |
End If J&(
If ppx = p3x And ppy = p3y Then z/pDOP Ku
point_in = True d"z *Nb
Exit Function KX]-ll
End If T..-)kL+p
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) H+nr5!`kz
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) HE9.
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cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) -v;iMEZ)
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) 9t W3!O^_
sum = aob + boc + cod + doa 1a \=0=[
If 360.01 > sum And sum > 359.99 Then Pxap;;\
point_in = True o@Dk%LxP
Else F>p%2II/
point_in = False AsV8k _qZL
End If <?{ SU
End Function
