'判断点在区域内函数 xs}3=&c(
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 @$*LU:[
Dim aob, boc, cod, doa, sum As Single 0[
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If ppx = p1x And ppy = p1y Then 2 -C*RHRx
point_in = True > N bb0T
Exit Function u3k{s
End If ahUc;S:v#
If ppx = p2x And ppy = p2y Then nOQvBc
point_in = True llE_-M2gH
Exit Function vVyX[ZZ
End If sX
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If ppx = p3x And ppy = p3y Then C f(g
point_in = True 9j8<Fs0M
Exit Function N?3BzI%?
End If IQ]tcSQl
s[n*fV']A
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) 05ZF>`g*
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) xgQ&'&7l
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) (/[wM>q:r
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) 0Q{^BgW
sum = aob + boc + cod + doa y?-zQs0
If 360.01 > sum And sum > 359.99 Then Q~-M B]'
point_in = True JW2~
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Else T$pBgS>
point_in = False $gPR3*0
End If &57s//PrX
End Function