'判断点在区域内函数 0(9gTxdB
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 ~m0=YAlk?
Dim aob, boc, cod, doa, sum As Single S4_ZG>\VT
If ppx = p1x And ppy = p1y Then *f{ 4 _ts
point_in = True yB=R7E7
Exit Function zf5%|7o
End If _ouZd.
If ppx = p2x And ppy = p2y Then yd'cLZd<}
point_in = True 5p:2gsk
Exit Function YcR: _ac
End If rM6S%rS
If ppx = p3x And ppy = p3y Then UEm4):/}
point_in = True dS \n 2Qb
Exit Function kK
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End If dVGcth;
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aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) D+oV( Pw,
boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) x^Qij!mB%
cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) kkj@!1q(wO
doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) cXN0D\%`
sum = aob + boc + cod + doa +9' )G-`qj
If 360.01 > sum And sum > 359.99 Then D62'bFB^
point_in = True a8%T*mk(
Else 3/&
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point_in = False z~v-8aw
End If |Xd& aQ
End Function
