'判断点在区域内函数 U?@ s`.
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 r6JQRSakR
Dim aob, boc, cod, doa, sum As Single Yz%A K p
If ppx = p1x And ppy = p1y Then ~J~@mE2ks
point_in = True *Z9Rl >
Exit Function U z* 7J
End If <\44%M"iC-
If ppx = p2x And ppy = p2y Then g1!e k
point_in = True !6` pq
Exit Function =d +~l
End If 3]46qk '
If ppx = p3x And ppy = p3y Then
=, MX%-2
point_in = True W "{:|' /v
Exit Function =c(t;u6m-
End If 4!vovt{
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) `@ _j Do
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) ES4[@RX
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) j7 (S=
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) )ajF ca@v
sum = aob + boc + cod + doa q0m> NA
If 360.01 > sum And sum > 359.99 Then u5'jIqlU
point_in = True R!+_mPb=Q*
Else /h]#}y j
point_in = False Wr j<}L|
End If Ii .0Bul
End Function
