'判断点在区域内函数 *p.ELI1IC
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 jGt'S{
Dim aob, boc, cod, doa, sum As Single ~Ycz(h'(
If ppx = p1x And ppy = p1y Then #Kn7
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point_in = True hh: )" <[
Exit Function 8'g/WZY~~
End If IFpmf0;^
If ppx = p2x And ppy = p2y Then 1Rp |*>
point_in = True )](8 {}wo
Exit Function i Cv &<C@
End If jX+L I
If ppx = p3x And ppy = p3y Then 7Dm^49H
point_in = True TU[f"!z^
Exit Function _DJ0 MR~3
End If \? qXscq
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) G ROl9xp2
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) rM>&! ?y+
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) f<kL}B+,Og
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) hb?
| fi
sum = aob + boc + cod + doa }[i35f[w
If 360.01 > sum And sum > 359.99 Then LGod"8~U
point_in = True UbQeN
Else rZpc"<U
point_in = False W"! nf
End If DC/CUKE.d
End Function
