'判断点在区域内函数 %iNDRLR%I
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 IA'AA|v
Dim aob, boc, cod, doa, sum As Single &gfQZxT
If ppx = p1x And ppy = p1y Then <j' #mUzd
point_in = True va.wdk g
Exit Function @ ri. r1
End If w,7
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If ppx = p2x And ppy = p2y Then +tF,E^
point_in = True q ^?{6}sy
Exit Function xM,3F jF
End If >v{m^|QqB
If ppx = p3x And ppy = p3y Then M DpXth7
point_in = True KN=Orx7Gy
Exit Function -rfO"D>
End If $) $sApB
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) <LE>WfmC
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) QX4I+x~oo\
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) l bY>R@5
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) +}n]A^&I\E
sum = aob + boc + cod + doa \BDNF< _
If 360.01 > sum And sum > 359.99 Then li[g =A,
point_in = True 1<F/b oF~
Else +qdK]RR}
point_in = False ^]kDYh e*Y
End If 0M"E6 z)9
End Function
