'判断点在区域内函数 h#Rza-?"\
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 iN[6}V6Sm
Dim aob, boc, cod, doa, sum As Single 6? lAbW
If ppx = p1x And ppy = p1y Then W4 . w
point_in = True @}PXBU
Exit Function !m))Yp-"H
End If Px-VRANZt
If ppx = p2x And ppy = p2y Then &k vmLO I
point_in = True ]}Ys4(}
Exit Function #Rfc p!
End If iM7 ^
If ppx = p3x And ppy = p3y Then t+ d7{&B
point_in = True 2aR9vmR
Exit Function \ ^pc"?Rc
End If U<F|A!Fg
!\VEUF,K?
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) oM>UIDCY_v
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) 3H< %\SYp
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) u ,:hT]
~+
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) y5c\ \ e
sum = aob + boc + cod + doa 4dN <B U
If 360.01 > sum And sum > 359.99 Then ->OVNmCB`+
point_in = True EF$ASNh"
Else A[@koLCL
point_in = False J9t?;3
End If a0k;way
End Function
