'判断点在区域内函数 <uvA([r=Vq
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 5 #Et.P'
Dim aob, boc, cod, doa, sum As Single 3Uy(d ,N
If ppx = p1x And ppy = p1y Then ')>D*e
point_in = True PH>`//D%n?
Exit Function %a|m[6+O
End If Uf#9y182*c
If ppx = p2x And ppy = p2y Then S3ZI C\2
point_in = True }ZJ*N Y
Exit Function !#dp [,nk
End If 2<tU
If ppx = p3x And ppy = p3y Then |'](zEwq
point_in = True TV~S#yg+H
Exit Function La
r9}nx0
End If a]@BS6
tf6 Zz[
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) g[(Eh?]Sc
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) A$-\Er+f
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) -;iCe7|Twf
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) k:#u%Z
sum = aob + boc + cod + doa $lb$ <
If 360.01 > sum And sum > 359.99 Then KN".0WU
point_in = True 2X6L'!=
Else C=`MzZ bJ
point_in = False <ToRPx&E
End If 9](RZ6A+o
End Function
