| safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 4t+88e 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&xvY.!27V Dim aob, boc, cod, doa, sum As Single {&4qknPd% If ppx = p1x And ppy = p1y Then v
EX <9 point_in = True x
Dr^&rC Exit Function ~/Ry=8 End If hQ\]vp7V If ppx = p2x And ppy = p2y Then jjbw.n+1 point_in = True JBg>E3*N Exit Function $i2gOz End If p75w^ If ppx = p3x And ppy = p3y Then UnMDdJ\ point_in = True C[s*Na- Exit Function 8q0 .yhb End If }i[jJb`bY VEn%_9(] aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) fU8;CZnx boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) ,L^L uw'7 cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) Op0
#9W doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) vSyN_ AB?$ sum = aob + boc + cod + doa 'nLv0.7* If 360.01 > sum And sum > 359.99 Then qI"mW@G~H point_in = True @s[bRp`gd Else q\/|nZO4 point_in = False nOB
]?{X End If h '}5"m End Function
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