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/**********************************************************************
* $Id: CommonBitsOp.cpp 1820 2006-09-06 16:54:23Z mloskot $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* Copyright (C) 2005-2006 Refractions Research Inc.
* 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/precision/CommonBitsOp.h>
#include <geos/precision/CommonBitsRemover.h>
#include <geos/geom/Geometry.h>
#include <vector>
#include <string>
#include <memory>
#include <cassert>
#ifndef GEOS_DEBUG
#define GEOS_DEBUG 0
#endif
#ifdef GEOS_DEBUG
#include <iostream>
#endif
using namespace std;
using namespace geos::geom;
namespace geos {
namespace precision { // geos.precision
/*public*/
CommonBitsOp::CommonBitsOp()
:
returnToOriginalPrecision(true)
{
#if GEOS_DEBUG
std::cerr << "CommonBitsOp[" << this
<< "]::CommonBitsOp()" << std::endl;
#endif
}
/*public*/
CommonBitsOp::CommonBitsOp(bool nReturnToOriginalPrecision)
:
returnToOriginalPrecision(nReturnToOriginalPrecision)
{
#if GEOS_DEBUG
std::cerr << "CommonBitsOp[" << this
<< "]::CommonBitsOp(bool "
<< nReturnToOriginalPrecision << ")"
<< std::endl;
#endif
}
/*public*/
Geometry*
CommonBitsOp::intersection(
const Geometry* geom0,
const Geometry* geom1)
{
auto_ptr<Geometry> rgeom0;
auto_ptr<Geometry> rgeom1;
removeCommonBits(geom0, geom1, rgeom0, rgeom1);
return computeResultPrecision(rgeom0->intersection(rgeom1.get()));
}
/*public*/
Geometry*
CommonBitsOp::Union(
const Geometry* geom0,
const Geometry* geom1)
{
auto_ptr<Geometry> rgeom0;
auto_ptr<Geometry> rgeom1;
removeCommonBits(geom0, geom1, rgeom0, rgeom1);
return computeResultPrecision(rgeom0->Union(rgeom1.get()));
}
/*public*/
Geometry*
CommonBitsOp::difference(
const Geometry* geom0,
const Geometry* geom1)
{
auto_ptr<Geometry> rgeom0;
auto_ptr<Geometry> rgeom1;
removeCommonBits(geom0, geom1, rgeom0, rgeom1);
return computeResultPrecision(rgeom0->difference(rgeom1.get()));
}
/*public*/
Geometry*
CommonBitsOp::symDifference(
const Geometry* geom0,
const Geometry* geom1)
{
auto_ptr<Geometry> rgeom0;
auto_ptr<Geometry> rgeom1;
removeCommonBits(geom0, geom1, rgeom0, rgeom1);
return computeResultPrecision(rgeom0->symDifference(rgeom1.get()));
}
/*public*/
Geometry*
CommonBitsOp::buffer(const Geometry* geom0, double distance)
{
auto_ptr<Geometry> rgeom0(removeCommonBits(geom0));
return computeResultPrecision(rgeom0->buffer(distance));
}
/*public*/
Geometry*
CommonBitsOp::computeResultPrecision(Geometry* result)
{
assert(cbr.get());
if (returnToOriginalPrecision)
cbr->addCommonBits(result);
return result;
}
/*private*/
Geometry*
CommonBitsOp::removeCommonBits(const Geometry* geom0)
{
cbr.reset(new CommonBitsRemover());
cbr->add(geom0);
#if GEOS_DEBUG
const Coordinate& commonCoord = cbr->getCommonCoordinate();
cerr << "CommonBitsRemover bits: " << commonCoord.x << ", " << commonCoord.y << endl;
#endif
Geometry* geom=cbr->removeCommonBits(geom0->clone());
return geom;
}
/*private*/
void
CommonBitsOp::removeCommonBits(
const geom::Geometry* geom0,
const geom::Geometry* geom1,
std::auto_ptr<geom::Geometry>& rgeom0,
std::auto_ptr<geom::Geometry>& rgeom1)
{
cbr.reset(new CommonBitsRemover());
cbr->add(geom0);
cbr->add(geom1);
#if GEOS_DEBUG
const Coordinate& commonCoord = cbr->getCommonCoordinate();
cerr << "CommonBitsRemover bits: " << commonCoord.x << ", " << commonCoord.y << endl;
#endif
rgeom0.reset(cbr->removeCommonBits(geom0->clone()));
rgeom1.reset(cbr->removeCommonBits(geom1->clone()));
}
} // namespace geos.precision
} // namespace geos
/**********************************************************************
* $Log$
* Revision 1.10 2006/04/13 23:28:26 strk
* "always build before commit" (forgot a closing paren)
*
* Revision 1.9 2006/04/13 23:23:52 strk
* fixed bug in binary ops failing to consistently reduce operands.
*
* Revision 1.8 2006/04/07 08:27:12 strk
* debugging blocks
*
* Revision 1.7 2006/04/06 14:36:51 strk
* Cleanup in geos::precision namespace (leaks plugged, auto_ptr use, ...)
*
* Revision 1.6 2006/03/23 09:17:19 strk
* precision.h header split, minor optimizations
*
**********************************************************************/
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