| safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 1([?EfC 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 (
;KTV*1 Dim aob, boc, cod, doa, sum As Single XFi9qL^ If ppx = p1x And ppy = p1y Then HrRw point_in = True ]v_u2f' Exit Function i1Y<[s End If
O44Fj) If ppx = p2x And ppy = p2y Then "~"=e point_in = True ]oKHS$W9 Exit Function C`8.8 End If $7p0<<Nck If ppx = p3x And ppy = p3y Then HUel point_in = True OZe`>Q6 Exit Function D% 2S! End If ;20sh^~ EEHTlqvR aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) \WZSY||C|_ boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) ] B>.} cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) c >xHaA:V doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) TR:4$92:H sum = aob + boc + cod + doa `Zci< If 360.01 > sum And sum > 359.99 Then x(:alG%# point_in = True gbu)bqu2x Else z
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-Y point_in = False _ujhD End If .gCun_td# End Function
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