'判断点在区域内函数 mf2Qu
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 4>]B8ZxH
Dim aob, boc, cod, doa, sum As Single :} o{<U
If ppx = p1x And ppy = p1y Then =z}M (<G
point_in = True al4X}
Exit Function !'=< uU-
End If quFNPdP
If ppx = p2x And ppy = p2y Then A .<M*[{q
point_in = True 5"Y:^_8
Exit Function 0'R}'
End If YRj"]=
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If ppx = p3x And ppy = p3y Then P_M!h~
point_in = True ) =|8%IrB
Exit Function y"ms;w'z
End If vGp`P
nB%[\LtZ?
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) $ u,`bX
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) Kq:vTz&<
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) 7#9 fcfL
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) '^.3}N{Fo
sum = aob + boc + cod + doa "GAKi}y">v
If 360.01 > sum And sum > 359.99 Then g<i>252>
point_in = True i6E ~]&~.v
Else W1O Y}2kj
point_in = False +qyx3c+
End If ^]$rh.7&
End Function
