'判断点在区域内函数 #!wsD 7;
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 yW[L,N7d
Dim aob, boc, cod, doa, sum As Single KxGKA
If ppx = p1x And ppy = p1y Then )K8P+zn~
point_in = True P4i3y{$V
Exit Function NYGm Lbq
End If /cM 5
If ppx = p2x And ppy = p2y Then $+0=G N
point_in = True S 3b|wUf
Exit Function ?VUgwP_=
End If ip<15;Z
If ppx = p3x And ppy = p3y Then Q %+ }
point_in = True 5XI;<^n2
Exit Function U8EJC
.e&O
End If poTl|y @
9e0C3+)CY
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) fFjL p l
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) };i&a%I|
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) MJy;GzJ O
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) |*Of^IkG0
sum = aob + boc + cod + doa a$~IQ2$|6
If 360.01 > sum And sum > 359.99 Then Fecx';_1`
point_in = True \I'f3
Else qPL^zM+
point_in = False &b 5T&-C<
End If Y]hV-_2+Do
End Function
