'判断点在区域内函数 w OOu/Y
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 a l9(
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Dim aob, boc, cod, doa, sum As Single y06xl:iQwF
If ppx = p1x And ppy = p1y Then Z}{]/=h
point_in = True 5nTcd@lX
Exit Function '$rCV,3q
End If ?J-\}X
If ppx = p2x And ppy = p2y Then TZGk[u^*
point_in = True p5% %k-
Exit Function sWB@'P:x
End If d]:G#<.
If ppx = p3x And ppy = p3y Then 4LW~
point_in = True x6*y$D^B
Exit Function RR'sW@
End If 3hxV`rb
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) 6nREuT'k
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) A3*(c3
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) &SNH1b#>E
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) G:y+yE4
sum = aob + boc + cod + doa '$eJATtC
If 360.01 > sum And sum > 359.99 Then L62%s[
point_in = True aGfp"NtL
Else c{ +bY.J
point_in = False 7WUvO
End If :H&G}T(#
End Function