'判断点在区域内函数 TDUY& 1[
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 T@Y, 7ccpd
Dim aob, boc, cod, doa, sum As Single AL.psw-Il
If ppx = p1x And ppy = p1y Then b+|3nc!
point_in = True #n}~u@,o_
Exit Function X ^Z! !KTH
End If .r2*tB).
If ppx = p2x And ppy = p2y Then *yaS^k\
point_in = True 1`YU9?
Exit Function JXM]tV
End If yIrJaS-
If ppx = p3x And ppy = p3y Then #f YB4.i~
point_in = True Fs]. Fa
Exit Function AYgXqmH~+
End If #c5jCy}n
R(`:~@ 3\6
aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) ^ lAM /
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) }f]Y^>-Ux
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) OQ7 `n<I<)
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) YZj*F-}
sum = aob + boc + cod + doa BHf$ %?3z,
If 360.01 > sum And sum > 359.99 Then h693TS_N
point_in = True 7jgj;%
Else LP=j/qf|
point_in = False
fT|A^
End If W*t]
d
End Function
