How to use

apply

method

in

com.vividsolutions.jts.geom.Geometry

/**
 * Transform into GeometryCollection.
 * 
 * @param geom
 *         input geometry
 * @return
 *         a geometry collection
 */
private static GeometryCollection transformIntoPointGeometryCollection(Geometry geom) {
  UniqueCoordinateArrayFilter filter = new UniqueCoordinateArrayFilter();
  geom.apply(filter);
  Coordinate[] coord = filter.getCoordinates();
  
  Geometry[] geometries = new Geometry[coord.length];
  for (int i = 0 ; i < coord.length ; i++) {
    Coordinate[] c = new Coordinate[] { coord[i] };
    CoordinateArraySequence cs = new CoordinateArraySequence(c);
    geometries[i] = new Point(cs, geom.getFactory());
  }
  
  return new GeometryCollection(geometries, geom.getFactory());
}

/**
 * Notifies this geometry that its coordinates have been changed by an external
 * party (for example, via a {@link CoordinateFilter}). 
 * When this method is called the geometry will flush
 * and/or update any derived information it has cached (such as its {@link Envelope} ).
 * The operation is applied to all component Geometries.
 */
public void geometryChanged() {
 apply(geometryChangedFilter);
}

/**
 * Add a {@link Geometry} to the edges to be polygonized.
 * May be called multiple times.
 * Any dimension of Geometry may be added;
 * the constituent linework will be extracted and used
 *
 * @param g a {@link Geometry} with linework to be polygonized
 */
public void add(Geometry g)
{
 g.apply(lineStringAdder);
}

public void apply(CoordinateFilter filter) {
   for (int i = 0; i < geometries.length; i++) {
    geometries[i].apply(filter);
   }
  }

nextTransformGeom.apply(RoundingFilter.INSTANCE);

private void compute()
{
 if (minClearancePts != null) return;
 minClearancePts = new Coordinate[2];
 minClearance = Double.MAX_VALUE;
 inputGeom.apply(new VertexCoordinateFilter());
}
 

public void apply(GeometryFilter filter) {
 filter.filter(this);
 for (int i = 0; i < geometries.length; i++) {
  geometries[i].apply(filter);
 }
}

public void apply(GeometryComponentFilter filter) {
 filter.filter(this);
 for (int i = 0; i < geometries.length; i++) {
  geometries[i].apply(filter);
 }
}

/**
 * Returns a list containing a point from each Polygon, LineString, and Point
 * found inside the specified geometry. Thus, if the specified geometry is
 * not a GeometryCollection, an empty list will be returned. The elements of the list 
 * are {@link com.vividsolutions.jts.operation.distance.GeometryLocation}s.
 */  
public static List getLocations(Geometry geom)
{
 List locations = new ArrayList();
 geom.apply(new ConnectedElementLocationFilter(locations));
 return locations;
}

private List extractLines(Collection geoms)
{
 List lines = new ArrayList();
 LinearComponentExtracter lce = new LinearComponentExtracter(lines);
 for (Iterator it = geoms.iterator(); it.hasNext(); ) {
  Geometry geom = (Geometry) it.next();
  geom.apply(lce);
 }
 return lines;
}

/**
 * Returns a list containing a Coordinate from each Polygon, LineString, and Point
 * found inside the specified geometry. Thus, if the specified geometry is
 * not a GeometryCollection, an empty list will be returned.
 */
public static List getCoordinates(Geometry geom)
{
 List pts = new ArrayList();
 geom.apply(new ConnectedElementPointFilter(pts));
 return pts;
}

/**
 * Adds the common coordinate bits back into a Geometry.
 * The coordinates of the Geometry are changed.
 *
 * @param geom the Geometry to which to add the common coordinate bits
 */
public void addCommonBits(Geometry geom)
{
 Translater trans = new Translater(commonCoord);
 geom.apply(trans);
 geom.geometryChanged();
}

private static Coordinate[] extractCoordinates(Geometry geom)
{
 UniqueCoordinateArrayFilter filter = new UniqueCoordinateArrayFilter();
 geom.apply(filter);
 return filter.getCoordinates();
}

public static boolean hasSegment(Geometry geom, Coordinate p0, Coordinate p1)
{
 SegmentFindingFilter filter = new SegmentFindingFilter(p0, p1);
 geom.apply(filter);
 return filter.hasSegment();
}
 

protected Geometry rotate(Geometry geom)
{
 if (rotationAngle != 0.0) {
  AffineTransformation trans = AffineTransformation.rotationInstance(rotationAngle, 
    dim.getCentre().x, dim.getCentre().y);
  geom.apply(trans);
 }
 return geom;
}
 

public void apply(CoordinateSequenceFilter filter) {
 if (geometries.length == 0)
  return;
 for (int i = 0; i < geometries.length; i++) {
  geometries[i].apply(filter);
  if (filter.isDone()) {
   break;
  }
 }
 if (filter.isGeometryChanged())
  geometryChanged();
}

private void computeMaxMidpointDistance(Geometry curve)
{
MaxMidpointDistanceFilter distFilter = new MaxMidpointDistanceFilter(inputGeom);
curve.apply(distFilter);
maxPtDist.setMaximum(distFilter.getMaxPointDistance());
}
 

private void computeMaxVertexDistance(Geometry curve)
{
MaxPointDistanceFilter distFilter = new MaxPointDistanceFilter(inputGeom);
curve.apply(distFilter);
maxPtDist.setMaximum(distFilter.getMaxPointDistance());
}
 

private void computeOrientedDistance(Geometry discreteGeom, Geometry geom, PointPairDistance ptDist)
{
 MaxPointDistanceFilter distFilter = new MaxPointDistanceFilter(geom);
 discreteGeom.apply(distFilter);
 ptDist.setMaximum(distFilter.getMaxPointDistance());
 
 if (densifyFrac > 0) {
  MaxDensifiedByFractionDistanceFilter fracFilter = new MaxDensifiedByFractionDistanceFilter(geom, densifyFrac);
  discreteGeom.apply(fracFilter);
  ptDist.setMaximum(fracFilter.getMaxPointDistance());
  
 }
}

public Geometry getResultGeometry() 
{
 // empty input produces an empty result
 if (inputGeom.isEmpty()) return (Geometry) inputGeom.clone();
 
 linestringMap = new HashMap();
 inputGeom.apply(new LineStringMapBuilderFilter());
 lineSimplifier.simplify(linestringMap.values());
 Geometry result = (new LineStringTransformer()).transform(inputGeom);
 return result;
}