'判断点在区域内函数 4;<ut$G
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 \]uV!)V5B
Dim aob, boc, cod, doa, sum As Single ) 1
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If ppx = p1x And ppy = p1y Then ",yc0 2<
point_in = True M5g\s;y;
Exit Function 3B0PGvCI1
End If ,WD X(
If ppx = p2x And ppy = p2y Then .fAv*pUzU
point_in = True aC%&U4OS
Exit Function r)^vO+3u
End If k V;fD$iW;
If ppx = p3x And ppy = p3y Then k*?I>%^6#T
point_in = True s58 C2
Exit Function t `kui.
End If Qm4o7x{q
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) OsqN B'X
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) 0[Ht_qxb
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) ^uBxgWIC
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) iK5_u2]Q
sum = aob + boc + cod + doa x/!5K|c
If 360.01 > sum And sum > 359.99 Then q%Yn;g|_
point_in = True bD ^b
Else wE]K~y!`
point_in = False ,m_WR7!$E
End If 99x Em
End Function
