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/**********************************************************************
* $Id: NodeMap.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.
* Copyright (C) 2005 Refractions Research Inc.
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************/
#include <geos/planargraph/NodeMap.h>
#include <geos/planargraph/Node.h>
#include <map>
using namespace std;
namespace geos {
namespace planargraph {
/**
* Constructs a NodeMap without any Nodes.
*/
NodeMap::NodeMap()
{
}
NodeMap::~NodeMap()
{
}
NodeMap::container&
NodeMap::getNodeMap()
{
return nodeMap;
}
/**
* Adds a node to the map, replacing any that is already at that location.
* @return the added node
*/
Node*
NodeMap::add(Node *n)
{
nodeMap.insert(pair<geom::Coordinate, Node*>(n->getCoordinate(),n));
return n;
}
/**
* Removes the Node at the given location, and returns it
* (or null if no Node was there).
*/
Node *
NodeMap::remove(geom::Coordinate& pt)
{
Node *n=find(pt);
nodeMap.erase(pt);
return n;
}
vector<Node*>*
NodeMap::getNodes()
{
vector<Node*> *values=new vector<Node*>();
NodeMap::container::iterator it=nodeMap.begin();
while(it!=nodeMap.end()) {
values->push_back(it->second);
++it;
}
return values;
}
/**
* Returns the Node at the given location, or null if no Node was there.
*/
Node*
NodeMap::find(const geom::Coordinate& coord)
{
container::iterator found=nodeMap.find(coord);
if (found==nodeMap.end())
return NULL;
else
return found->second;
}
} //namespace planargraph
} //namespace geos
/**********************************************************************
* $Log$
* Revision 1.1 2006/03/21 21:42:54 strk
* planargraph.h header split, planargraph:: classes renamed to match JTS symbols
*
**********************************************************************/
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