'判断点在区域内函数 ^
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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 nGC/R&
Dim aob, boc, cod, doa, sum As Single on4HKeO
If ppx = p1x And ppy = p1y Then |Tv#4st
point_in = True p?02C#p
Exit Function 34f?6K1c
End If $zUP?Gq!
If ppx = p2x And ppy = p2y Then 4S7v:1~xe
point_in = True >R'F,
Exit Function C"y(5U)d
End If 0HZ{Y9]
If ppx = p3x And ppy = p3y Then W8G,=d}6
point_in = True ,V7nzhA2
Exit Function -M\<nx
End If n*h)'8`Ut
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) zrvF]|1UP
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) !Mx$A$Oj>
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) 21n?=[
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) G?yLo 'Ulo
sum = aob + boc + cod + doa _5w]a 2
If 360.01 > sum And sum > 359.99 Then F/]2G^-
point_in = True 2_>N/Z4T
Else R7%#U`Q^A
point_in = False zOJ%}
End If \P[Y`LYL
End Function