'判断点在区域内函数 DB-4S-2
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 9He>F7J:p'
Dim aob, boc, cod, doa, sum As Single ~9#\+[ d_
If ppx = p1x And ppy = p1y Then hs }nI/#
point_in = True Ev|2bk \
Exit Function ;,}tXz
End If k%?wNk>
If ppx = p2x And ppy = p2y Then pP;GDW4
point_in = True \/*r45!
Exit Function ( ?3 )l
End If 'KMyaEh.u
If ppx = p3x And ppy = p3y Then ~v$gk
point_in = True i|0H {q
Exit Function m*tmmP4R
End If s
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@[D-2s
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) ~rN~Ql%S
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) LGGC=;{}
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) &uI`Xq.
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) ;>{B K,
sum = aob + boc + cod + doa !run3ip`Z
If 360.01 > sum And sum > 359.99 Then m7Nm!Z7
point_in = True w&:"x@ -|
Else "yxIaTZu
point_in = False N%'=el4L
End If \74 + cN
End Function
