package com.vividsolutions.jtstest.function;
import com.vividsolutions.jts.geom.*;
import com.vividsolutions.jts.linearref.LengthIndexedLine;
public class LinearReferencingFunctions
{
public static Geometry extractPoint(Geometry g, double index)
{
LengthIndexedLine ll = new LengthIndexedLine(g);
Coordinate p = ll.extractPoint(index);
return g.getFactory().createPoint(p);
}
public static Geometry extractLine(Geometry g, double start, double end)
{
LengthIndexedLine ll = new LengthIndexedLine(g);
return ll.extractLine(start, end);
}
public static Geometry project(Geometry g, Geometry g2)
{
LengthIndexedLine ll = new LengthIndexedLine(g);
double index = ll.project(g2.getCoordinate());
Coordinate p = ll.extractPoint(index);
return g.getFactory().createPoint(p);
}
public static double projectIndex(Geometry g, Geometry g2)
{
LengthIndexedLine ll = new LengthIndexedLine(g);
return ll.project(g2.getCoordinate());
}
}