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/**********************************************************************
* $Id: Triangle.cpp 1820 2006-09-06 16:54:23Z mloskot $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* Copyright (C) 2001-2002 Vivid Solutions Inc.
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Public Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************/
#include <geos/geom/Triangle.h>
#include <geos/geom/Coordinate.h>
namespace geos {
namespace geom { // geos::geom
void
Triangle::inCentre(Coordinate& result)
{
// the lengths of the sides, labelled by their opposite vertex
double len0 = p1.distance(p2);
double len1 = p0.distance(p2);
double len2 = p0.distance(p1);
double circum = len0 + len1 + len2;
double inCentreX = (len0 * p0.x + len1 * p1.x +len2 * p2.x) / circum;
double inCentreY = (len0 * p0.y + len1 * p1.y +len2 * p2.y) / circum;
result = Coordinate(inCentreX, inCentreY);
}
} // namespace geos::geom
} // namespace geos
/**********************************************************************
* $Log$
* Revision 1.7 2006/03/22 16:58:34 strk
* Removed (almost) all inclusions of geom.h.
* Removed obsoleted .cpp files.
* Fixed a bug in WKTReader not using the provided CoordinateSequence
* implementation, optimized out some memory allocations.
*
* Revision 1.6 2006/03/13 21:54:56 strk
* Streamlined headers inclusion.
**********************************************************************/
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