'判断点在区域内函数 0O|T\E8e
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 PKty'}KF
Dim aob, boc, cod, doa, sum As Single rQ
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If ppx = p1x And ppy = p1y Then /\(0@To
point_in = True 3L/>=I{5
Exit Function 8 }nA8 J
End If #P<v[O/rA
If ppx = p2x And ppy = p2y Then \,oT(p4N%M
point_in = True ;VNwx(1l`
Exit Function 79z(n[^
End If l0 rZril
If ppx = p3x And ppy = p3y Then M n3cIGL
point_in = True hT#[[md"
Exit Function }2-{4JIq}
End If 48Z{wV,
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) ;XRLp:y
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) fOF02WP^
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) T1LtO O
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) ;a[56W
sum = aob + boc + cod + doa (Rve<n6{A
If 360.01 > sum And sum > 359.99 Then
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point_in = True &Dgho
Else "n=`{~F
point_in = False 4hr;k0sD
End If (G*--+Gn
End Function