/*
* The JTS Topology Suite is a collection of Java classes that
* implement the fundamental operations required to validate a given
* geo-spatial data set to a known topological specification.
*
* Copyright (C) 2001 Vivid Solutions
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For more information, contact:
*
* Vivid Solutions
* Suite #1A
* 2328 Government Street
* Victoria BC V8T 5G5
* Canada
*
* (250)385-6040
* www.vividsolutions.com
*/
package com.vividsolutions.jts.simplify;
import java.util.Collection;
import java.util.Iterator;
/**
* Simplifies a collection of TaggedLineStrings, preserving topology
* (in the sense that no new intersections are introduced).
* This class is essentially just a container for the common
* indexes used by {@link TaggedLineStringSimplifier}.
*/
class TaggedLinesSimplifier
{
private LineSegmentIndex inputIndex = new LineSegmentIndex();
private LineSegmentIndex outputIndex = new LineSegmentIndex();
private double distanceTolerance = 0.0;
public TaggedLinesSimplifier()
{
}
/**
* Sets the distance tolerance for the simplification.
* All vertices in the simplified geometry will be within this
* distance of the original geometry.
*
* @param distanceTolerance the approximation tolerance to use
*/
public void setDistanceTolerance(double distanceTolerance) {
this.distanceTolerance = distanceTolerance;
}
/**
* Simplify a collection of TaggedLineStrings
*
* @param taggedLines the collection of lines to simplify
*/
public void simplify(Collection taggedLines) {
for (Iterator i = taggedLines.iterator(); i.hasNext(); ) {
inputIndex.add((TaggedLineString) i.next());
}
for (Iterator i = taggedLines.iterator(); i.hasNext(); ) {
TaggedLineStringSimplifier tlss
= new TaggedLineStringSimplifier(inputIndex, outputIndex);
tlss.setDistanceTolerance(distanceTolerance);
tlss.simplify((TaggedLineString) i.next());
}
}
}