'判断点在区域内函数 ],pB:=
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?HaU
Dim aob, boc, cod, doa, sum As Single 8m?(* [[
If ppx = p1x And ppy = p1y Then A~bSB
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point_in = True LJGpa )(
Exit Function k.ou$mIY
End If lx%c&~.DiB
If ppx = p2x And ppy = p2y Then U`ttT5;
point_in = True I?3b}#&V9
Exit Function <|}Z6Ti
End If e$Ds2%SaT
If ppx = p3x And ppy = p3y Then _xaum
point_in = True #T_!-;(Z
Exit Function Uz^N6q
End If #&}-
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) K
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boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) q !z"YpYB
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) 8(%F{&<;
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) )A7^LLzG
sum = aob + boc + cod + doa rUb{iU;~m
If 360.01 > sum And sum > 359.99 Then ZL6HD n!
point_in = True gu(:'5cX
Else
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point_in = False )/$J$'mcxd
End If ]!B0= XP
End Function