63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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May, 2007 Leonardo Azevedo, Rafael Brand
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*/
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//---------------------------------------------------------------------------
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#include "TurningPoint.h"
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bool TurningPoint::getDirectionTurningPoint(const RealCoordinate &p,
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const RealCoordinate &p2,
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bool insideAbove,
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const RealCoordinate &v)
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{
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//window's vertical edge
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if (v.x==p.x)
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{
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if (insideAbove)
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return false; //UP
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else
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return true; //DOWN
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}
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else //Horizontal edge
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{
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if (insideAbove)
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{
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if ( (p.x-p2.x)>0 ) //p2.x is located to the left of p.x
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return false; //RIGHT
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else
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return true; //LEFT
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}
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else
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{
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if ( (p.x-p2.x)>0 )//p2.x is located to the right of p.x
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return true; //LEFT
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else
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return false; //RIGHT
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}
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}
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}
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//---------------------------------------------------------------------------
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