'判断点在区域内函数 fBZAO
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 NL7CeHs5
Dim aob, boc, cod, doa, sum As Single U5!T-o;3}
If ppx = p1x And ppy = p1y Then mYRW/8+g
point_in = True IJz=SV
Exit Function f 3t&Bcw$
End If N-cLp}D}WB
If ppx = p2x And ppy = p2y Then ^;[|,:8f7L
point_in = True F9\T<
Exit Function O>)Fl42IeD
End If 1NI%J B
If ppx = p3x And ppy = p3y Then GR ^d/
point_in = True jXCSD@?]K
Exit Function pjVF^gv,*
End If ;{% R[M'
x.ZW%P1
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) QW[
gDc
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) \n}@}E L
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) &Bfgvws;
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) Aq~}<qkIF+
sum = aob + boc + cod + doa `N.^+Mvx-
If 360.01 > sum And sum > 359.99 Then M,V~oc5
point_in = True =k+nC)e
Else !da[#zK
point_in = False x;;
= +)Gg
End If ZQV,gIFys
End Function