| safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 w+rw<,u% 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 J>dj]1I Dim aob, boc, cod, doa, sum As Single IF>v
-Z If ppx = p1x And ppy = p1y Then rREev point_in = True ,=!s;+lu{ Exit Function R GV{KL End If gu3)HCZ If ppx = p2x And ppy = p2y Then .aZB?MW point_in = True e7G>'K Exit Function &\?{%xj End If w}}+8mk[ If ppx = p3x And ppy = p3y Then 9F,XjPK= point_in = True j5Yli6r?3- Exit Function p"\-iY] End If Y\!:/h]E& nb5%a aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) BvlY\^ boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) i_6 wD cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) Z[+Qf3j}o6 doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) L%9yFg%u sum = aob + boc + cod + doa E3Z>R=s If 360.01 > sum And sum > 359.99 Then j@JY-^~K5 point_in = True 'H1"z!] Else y^p%/p% point_in = False 7;}TNK\+v End If +&AU&2As End Function
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