'判断点在区域内函数 a.ME{:a%
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 ;L{y3CWT
Dim aob, boc, cod, doa, sum As Single hRiGW_t
If ppx = p1x And ppy = p1y Then ITOGD
point_in = True N^>g= Ub
Exit Function N1+]3kt ~
End If )7T T RL
If ppx = p2x And ppy = p2y Then gC:E38u
point_in = True ^E8Hv
Exit Function Fsdn2{g8U
End If S!c@6&XJm?
If ppx = p3x And ppy = p3y Then dv>zK#!
point_in = True g7ROA8xu
Exit Function :\cJ vm
End If *gKr1}M
e6/} M3B
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) CF4y$aC#
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) @J)vuGS
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) 4 df1)<}U-
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) ?^0Z(<Arz
sum = aob + boc + cod + doa
HuC lO
If 360.01 > sum And sum > 359.99 Then A) .AAr
point_in = True w/@%x y
Else cZ,_O~
point_in = False au v\fR :
End If 6ns_4,
e
End Function
