'判断点在区域内函数 p]?eIovi
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 'MB+cz+v
Dim aob, boc, cod, doa, sum As Single <{hB&4oL
If ppx = p1x And ppy = p1y Then (2"4PU8
point_in = True H4{7,n
Exit Function GukwN]*OY
End If B}*\ pdJ
If ppx = p2x And ppy = p2y Then z|Xt'?9&n
point_in = True N1'Yo:_A
Exit Function I")Ud?v0)
End If QwF.c28[
If ppx = p3x And ppy = p3y Then -em3 #V
point_in = True b
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Exit Function 7~ZG"^k
End If i.[k"(
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) cXN0D\%`
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) 'd;aAG
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) wN6sica|
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) 9ao?\]&t
sum = aob + boc + cod + doa ~x_(v,NW
If 360.01 > sum And sum > 359.99 Then E5c)\
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point_in = True }g%&}`%'
Else 9o6qN1A0g
point_in = False XRyeEwA;pp
End If KBI1t$
End Function