package com.vividsolutions.jts.simplify;
import java.util.*;
/**
* Simplifies a collection of {@link TaggedLineString}s, 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 {@link TaggedLineString}s
*
* @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());
}
}
}