'判断点在区域内函数 e"nm< &
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 y>P+"Z.K%}
Dim aob, boc, cod, doa, sum As Single I+8n;I)]X
If ppx = p1x And ppy = p1y Then 50^ux:Uv+N
point_in = True * j %x
Exit Function >X*tMhcb
End If >.iF,[.[F<
If ppx = p2x And ppy = p2y Then M6)
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point_in = True j~ Aq-8R=
Exit Function h+FM?ct6}
End If f2i:I1 p("
If ppx = p3x And ppy = p3y Then sS>b}u+v#!
point_in = True A9$x8x*Lt
Exit Function tJ\
$%
End If ?l0eU@rwQ
x# >V50E
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) NBYJ'nA%;f
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) +xFn~b/
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) Lgg,K//g
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) CJ IuMsZ
sum = aob + boc + cod + doa g'(bk@<BP
If 360.01 > sum And sum > 359.99 Then v`HE R6
point_in = True HZyA\FS
Else H3 A$YkK [
point_in = False h:
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End If f!9i6
End Function
