'判断点在区域内函数 DSLX/uo1
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 |Y!^E %*
Dim aob, boc, cod, doa, sum As Single 0T`Qoo>u
If ppx = p1x And ppy = p1y Then Z|_V ;*
point_in = True 3
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Exit Function 8w:ay,=
End If J&aN6 l?
If ppx = p2x And ppy = p2y Then @(#vg\UH
point_in = True ZjxF@`H
Exit Function "pDU v^ie
End If Ic&~iqQ
If ppx = p3x And ppy = p3y Then #2^0z`-\_z
point_in = True Pn9".
Exit Function "e-Y?_S7R8
End If v\w*VCjoV
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) |cC3L09
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) ~3s?.[}d
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) ]+e
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doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) Z RjM^
d;
sum = aob + boc + cod + doa ,[
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If 360.01 > sum And sum > 359.99 Then !PIg,
point_in = True QDxs+<#
Else yq.@-]ytZ
point_in = False ZW;Ec+n_K
End If L!JC)p.
End Function