'判断点在区域内函数 m{$tO;c/Q
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 x1V2|~;p|
Dim aob, boc, cod, doa, sum As Single :{i$2\D H6
If ppx = p1x And ppy = p1y Then {[t"O u
point_in = True Jt>[]g $
Exit Function cv*Q]F1%
End If -Xxu/U})%
If ppx = p2x And ppy = p2y Then g
y e(/N+I
point_in = True *iRm`)zC(
Exit Function PVD ~W)0m*
End If 4$zFR}f
If ppx = p3x And ppy = p3y Then $]H=
point_in = True `f 6)Q`n
Exit Function *)`kx
End If 2^ ,H_PS
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) |j~EV~A J
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) Y7kb1UG
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) {NY~JFM
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) \n*7# aX/
sum = aob + boc + cod + doa /y9J) lx
If 360.01 > sum And sum > 359.99 Then I)XOAf$6
point_in = True EAD0<I<>
Else .mT#%ex
point_in = False G_^iR-
End If 9o`7Kc/g
End Function
