package com.vividsolutions.jts.geom.util;
import java.util.*;
import com.vividsolutions.jts.geom.*;
import com.vividsolutions.jts.geom.util.GeometryMapper.MapOp;
/**
* Maps the members of a {@link GeometryCollection}
* into another <tt>GeometryCollection</tt> via a defined
* mapping function.
*
* @author Martin Davis
*
*/
public class GeometryCollectionMapper
{
public static GeometryCollection map(GeometryCollection gc, MapOp op)
{
GeometryCollectionMapper mapper = new GeometryCollectionMapper(op);
return mapper.map(gc);
}
private MapOp mapOp = null;
public GeometryCollectionMapper(MapOp mapOp) {
this.mapOp = mapOp;
}
public GeometryCollection map(GeometryCollection gc)
{
List mapped = new ArrayList();
for (int i = 0; i < gc.getNumGeometries(); i++) {
Geometry g = mapOp.map(gc.getGeometryN(i));
if (!g.isEmpty())
mapped.add(g);
}
return gc.getFactory().createGeometryCollection(
GeometryFactory.toGeometryArray(mapped));
}
}