'判断点在区域内函数 RU3:[(7
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 D.zEE-cGyb
Dim aob, boc, cod, doa, sum As Single 5w)tsGX\
If ppx = p1x And ppy = p1y Then GndU}[0J
point_in = True a9C8Q
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Exit Function gwDQ@
End If cXiNO
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If ppx = p2x And ppy = p2y Then eXY*l>B
point_in = True w yP|#Z\
Exit Function +jePp_3$O
End If NGIbUH1[
If ppx = p3x And ppy = p3y Then M=$
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point_in = True !63p?Q=
Exit Function T u>5H`
End If ?IR]y-r
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) ezn%*X
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boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) Tf/jd 3>
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) <rZ(B>$
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) fvn`$
sum = aob + boc + cod + doa +;uP)
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If 360.01 > sum And sum > 359.99 Then P,-f]k[_
point_in = True yOwo(+
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Else W($}G_j[B1
point_in = False TbqH-R3W
End If @> n7
End Function