'判断点在区域内函数 WQKj]:qk0
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 ?\ Q0kr.T%
Dim aob, boc, cod, doa, sum As Single [ {cC
If ppx = p1x And ppy = p1y Then N`1r;%5
point_in = True H (> M
Exit Function T|bZ9_?+2
End If 6N3@!xtpi
If ppx = p2x And ppy = p2y Then UvBnf+,
point_in = True ea~i- 7
Exit Function D^$OCj\
End If oD0EOT/E
If ppx = p3x And ppy = p3y Then K\^&+7&zVg
point_in = True [@2s&Ct;
Exit Function w+_Wc ~f
End If aU( tu2
t?3BCm$Mi
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) HcO5?{2
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) f:vD`Fz1
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) yekRwo|
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) ps+:</;Z
sum = aob + boc + cod + doa
#T"64%dX
If 360.01 > sum And sum > 359.99 Then F$yeF^\g
point_in = True
9p*-?kPb
Else 9L HuS
point_in = False :e2X/ tl#
End If 5-w: c>
End Function
