'判断点在区域内函数 UT -=5
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 827N?pU$)
Dim aob, boc, cod, doa, sum As Single :BS`Q/<w
If ppx = p1x And ppy = p1y Then :
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point_in = True [(hENX}o :
Exit Function <Ip}uy [Y
End If 6m9Z5:xG
If ppx = p2x And ppy = p2y Then yI!K
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point_in = True z|Xl%8
Exit Function s$Mj4_p3l
End If I/adzLQ
If ppx = p3x And ppy = p3y Then xAI<<[-
point_in = True *-7 O|
''
Exit Function Kxq~,g=t
End If fqi5 84
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) B N=,>-O%
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) ]du pU"VV
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) lH[N*9G(
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) jm!G@k6TA
sum = aob + boc + cod + doa li'#< "R?'
If 360.01 > sum And sum > 359.99 Then j JW0a\0
point_in = True j$,`EBf`:<
Else 8p5u1 ;2
point_in = False IzG7! K
End If Ky+TgR
End Function
