safeng1122 |
2013-04-08 13:21 |
'判断点在区域内函数 %%-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 kMJQeo79 Dim aob, boc, cod, doa, sum As Single !~w6"%2+7 If ppx = p1x And ppy = p1y Then MQbNWUi point_in = True }v'PY/d. Exit Function &4[#_(pk End If }LHT#{+x If ppx = p2x And ppy = p2y Then k^'d@1z;C point_in = True xsY>{/C Exit Function 2RSHBo End If 3 -_U-:2" If ppx = p3x And ppy = p3y Then `DWi4y7 point_in = True yuy+}]uB@ Exit Function **w*hd] End If cc2 oFn ?-.Ep0/ aob = ff_angle(p1x, p1y, ppx, ppy, p2x, p2y) 3wa<,^kqy boc = ff_angle(p2x, p2y, ppx, ppy, p3x, p3y) C9z~)aL}7 cod = ff_angle(p3x, p3y, ppx, ppy, p4x, p4y) *k@0:a(> doa = ff_angle(p4x, p4y, ppx, ppy, p1x, p1y) \0^r J1* sum = aob + boc + cod + doa m|e*Jc If 360.01 > sum And sum > 359.99 Then p.TiTFu/ point_in = True v,!Y=8~9 Else q _T?G e point_in = False ^]sMy7X0IK End If nX.s h End Function
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