Application: gvSIG desktop » gvSIG tools: Vector editing

package org.gvsig.vectorediting.lib.prov.stretch.operation;

import java.awt.geom.AffineTransform;

import java.util.ArrayList;

import java.util.List;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.fmap.geom.exception.CreateGeometryException;

import org.gvsig.fmap.geom.operation.GeometryOperationException;

import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException;

import org.gvsig.fmap.geom.primitive.GeneralPathX;

import org.gvsig.fmap.geom.primitive.Point;

import org.gvsig.fmap.geom.primitive.Polygon;

import org.gvsig.fmap.geom.primitive.Primitive;

public class SurfaceStretchOperation implements StretchOperation{

    public SurfaceStretchOperation() {

        // TODO Auto-generated constructor stub

    }

    public Geometry transform(AffineTransform at, Primitive geom, Geometry roi)

        throws GeometryOperationNotSupportedException,

        GeometryOperationException, CreateGeometryException {

        GeometryManager geometryManager = GeometryLocator.getGeometryManager();

        Polygon polygon = geometryManager.createPolygon(geom.getGeometryType().getSubType());

        polygon.setGeneralPath((GeneralPathX) geom.getGeneralPath().clone());

        for (int j = 0; j < polygon.getNumVertices(); j++) {

            Point point = polygon.getVertex(j);

          if (roi.intersects(point) || roi.contains(point)) {

            point.transform(at);

            StretchOperationUtils.setVertex(polygon, j, point);

          }

        }

        return polygon;

    }

    public List<Point> getSelectedVertex(Primitive geom, Geometry roi) throws GeometryOperationNotSupportedException, GeometryOperationException, CreateGeometryException {

        GeometryManager geometryManager = GeometryLocator.getGeometryManager();

        List<Point> vertexList = new ArrayList<Point>();

        Polygon polygon = geometryManager.createPolygon(geom.getGeometryType().getSubType());

        polygon.setGeneralPath(geom.getGeneralPath());

        for (int j = 0; j < polygon.getNumVertices(); j++) {

            Point point = polygon.getVertex(j);

          if (roi.intersects(point) || roi.contains(point)) {

              vertexList.add(point);

          }

        }

        return vertexList;

    }

}