| safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 (/UW}$] h 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 Uoe;4ni Dim aob, boc, cod, doa, sum As Single l=ehoyER If ppx = p1x And ppy = p1y Then 47 xyS%X point_in = True [APwHIS Exit Function l\xcR]O End If ? C1.g'}7 If ppx = p2x And ppy = p2y Then Anr''J&9`H point_in = True AE?MEag Exit Function S
{oW End If {AUhF}O If ppx = p3x And ppy = p3y Then ebK/cPa8 point_in = True -c|dTZ8D)8 Exit Function z SDRZ! End If n}/?nP\% 5Iine n3> aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) >-J%=P boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) _<s[HGA`z cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) y (@j;Q3(r doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) ^YG'p?r.s sum = aob + boc + cod + doa ecaEWIOG If 360.01 > sum And sum > 359.99 Then oS6dcJHf point_in = True & mwQj<Z Else v;m`d{(i2 point_in = False kZ7\zbN> End If .'foS>W=t End Function
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