'判断点在区域内函数 _wb0'xoK"
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 u6:pV.p
Dim aob, boc, cod, doa, sum As Single 79zJ\ B_
If ppx = p1x And ppy = p1y Then K}[>T(0E
point_in = True pIW I
Exit Function UDf9FnG}L
End If iE0ab,OF
If ppx = p2x And ppy = p2y Then n(~\l#o@
point_in = True \Mv":Lm1
Exit Function WS& kx~oQ
End If c41: !u^
If ppx = p3x And ppy = p3y Then %}2@rLP
point_in = True -#-p1^v}
Exit Function s?WCnT
End If wx=0'T-[
\EoX8b}$b0
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) GC8}X;((Y
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) {Hr$wa~
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) v"+k~:t*
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) `ir3YnT+
sum = aob + boc + cod + doa QD{:vG
g
If 360.01 > sum And sum > 359.99 Then o/ [
point_in = True 8GJdRL(
Else /E wGW
point_in = False ;%J5=f% z)
End If *X%m@KLIKv
End Function
