'判断点在区域内函数 ?&m]du#6
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 l7!)#^`2_
Dim aob, boc, cod, doa, sum As Single 8!6*|!,:?n
If ppx = p1x And ppy = p1y Then OF/)-}!
point_in = True 9Ol_z\5
Exit Function iGMONJRO
End If Zwns|23n
If ppx = p2x And ppy = p2y Then UJ$:5*S=u
point_in = True r_E)HL/A
Exit Function
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End If
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If ppx = p3x And ppy = p3y Then ]?`p_G3O
point_in = True )>5k'1
Exit Function 34kd|!e,
End If <SZO-
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) W?
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boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) (v:ek_
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) E_1I|$
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) ](:FW '-
sum = aob + boc + cod + doa HbfB[%
If 360.01 > sum And sum > 359.99 Then ld}$Tsy0
point_in = True
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Else lkg*AAR?'
point_in = False b|o!&9Yyr
End If %H@76NvEz
End Function