'判断点在区域内函数 YG@t5j#b
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 /Z~<CbKKl
Dim aob, boc, cod, doa, sum As Single 'gC_)rK*
If ppx = p1x And ppy = p1y Then bM {s
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point_in = True iBF|&h(\
Exit Function 9
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End If LhOa{1SY
If ppx = p2x And ppy = p2y Then ]s'Q_wh_-v
point_in = True L ^q""[
Exit Function qU%/W|LY
End If piPR=B+
If ppx = p3x And ppy = p3y Then .
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point_in = True :~2vJzp@?
Exit Function gp>3I!bo[K
End If ar__ Pf6r
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) z\K"Rg~J
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) yXSFjcoB
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) Y$Zx,
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) .E`\MtA
sum = aob + boc + cod + doa ~Sj9GxTe
If 360.01 > sum And sum > 359.99 Then ,}3
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point_in = True hIy ~B['
Else n^Hm;BiE#
point_in = False hQYL`Dni
End If vB.E3 r=
End Function