'判断点在区域内函数 #] n[
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 <w08p*?
Dim aob, boc, cod, doa, sum As Single 'gQm%:qU3r
If ppx = p1x And ppy = p1y Then ,ad~ 6.Z_)
point_in = True ?c(f6p?%
Exit Function sE]eIN
End If -3ha LdRk6
If ppx = p2x And ppy = p2y Then b>;5#OQfn
point_in = True awMm&8cIM
Exit Function Jtc?p{
End If $eI [3{}X
If ppx = p3x And ppy = p3y Then -08Ys c
point_in = True 7*u0)Hog
Exit Function + ^4"
End If rt t?4
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) u V=rLDY
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) ]+ ug:E{7
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) mN*9X[ >x
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) : |P "`j
sum = aob + boc + cod + doa hnH:G`[F
If 360.01 > sum And sum > 359.99 Then o"TEmZUP
point_in = True k'
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Else C+O`3wPZp
point_in = False tz._*n83
End If vy6NH5Q
End Function
