'判断点在区域内函数 [!uVo>Q4
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 TK~ KM
Dim aob, boc, cod, doa, sum As Single ~>~qA0m"m
If ppx = p1x And ppy = p1y Then em- <V5fb
point_in = True :LdPqFXj
Exit Function #!#s7^%K &
End If "*MF=VB1
If ppx = p2x And ppy = p2y Then &Ll&A@yU
point_in = True #ZnNJ\6
Exit Function SdnO#J}{
End If 0B}2~}#
If ppx = p3x And ppy = p3y Then }*qj,8-9
point_in = True IAe/)
Exit Function G!%8DX5
End If O;}K7rSc
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y)
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boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) aS\$@41"
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) i*!2n1c[
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) |pq9i)e&
sum = aob + boc + cod + doa WA:r4V
If 360.01 > sum And sum > 359.99 Then n:k4 t
point_in = True SQx&4R.
Else n;>=QG
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point_in = False 9ZY,T]ym?
End If 9zIqSjos"
End Function
