'判断点在区域内函数 kf Xg\6uKc
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 T2%{pcdV/
Dim aob, boc, cod, doa, sum As Single _
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If ppx = p1x And ppy = p1y Then T\
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point_in = True l>J>?b=x"[
Exit Function CZ~%qPwD w
End If "UVqHW1%K
If ppx = p2x And ppy = p2y Then [%1 87dz:D
point_in = True 6]mFw{6qn1
Exit Function e=).0S`*F
End If ;
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If ppx = p3x And ppy = p3y Then F4#^jat{
point_in = True k7R}]hq]""
Exit Function U.kTdNSp
End If "h84D&V
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) "A>/m"c]*
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) L+]|-L`S
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) kzb%=EI
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) q
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sum = aob + boc + cod + doa Yqz
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If 360.01 > sum And sum > 359.99 Then 50?5xSEM0_
point_in = True 4b}94e@(N
Else $yi[wwf 4
point_in = False m|%L[h1
End If q '
End Function
