Revision 1034 trunk/libraries/libFMap/src/com/iver/cit/gvsig/fmap/operations/strategies/QueryByPointVisitor.java
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/* Generated by Together */ |
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package com.iver.cit.gvsig.fmap.operations.strategies; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import org.cresques.cts.ICoordTrans; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.layers.FBitSet; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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import org.cresques.cts.ICoordTrans; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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/** |
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* Query by point Visitor. |
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* |
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* @author Vicente Caballero Navarro |
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* |
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*/ |
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public class QueryByPointVisitor implements FeatureVisitor {
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private Point2D point = null;
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private double tolerance;
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private FLayer layer=null;
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private FBitSet bitset=null;
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private Rectangle2D recPoint=null;
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private Point2D point = null;
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private double tolerance;
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private FLayer layer = null;
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private FBitSet bitset = null;
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private Rectangle2D recPoint = null;
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private ICoordTrans ct = null; |
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/** |
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* DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
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*/ |
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public FBitSet getBitSet() {
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return bitset; |
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} |
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public void setLayer(FLayer layer){
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this.layer=layer; |
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this.ct = layer.getCoordTrans(); |
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} |
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/** |
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* DOCUMENT ME! |
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* |
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* @param t DOCUMENT ME! |
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*/ |
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public void setTolerance(double t) {
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tolerance = t; |
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} |
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/** |
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* Devuelve un FBitSet con los ?ndices de los registros de la consulta. |
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* |
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* @return FBitSet con los ?ndices de la consulta. |
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*/ |
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public FBitSet getBitSet() {
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return bitset; |
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} |
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/** |
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* DOCUMENT ME! |
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* |
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* @param p DOCUMENT ME! |
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*/ |
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public void setQueriedPoint(Point2D p) {
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point = p; |
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} |
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/** |
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* DOCUMENT ME! |
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* |
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* @param layer DOCUMENT ME! |
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*/ |
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public void setLayer(FLayer layer) {
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this.layer = layer; |
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this.ct = layer.getCoordTrans(); |
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} |
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/** |
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* @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#visit(com.iver.cit.gvsig.fmap.core.IGeometry, |
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* int) |
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*/ |
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public void visit(IGeometry g, int index) {
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/** |
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* Inserta la tolerancia que se aplica en la selecci?n. |
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* |
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* @param t tolerancia. |
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*/ |
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public void setTolerance(double t) {
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tolerance = t; |
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} |
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if (ct != null) |
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{
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g.reProject(ct); |
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} |
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if (g.intersects(recPoint)) {
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bitset.set(index, true); |
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} else {
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bitset.set(index, false); |
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} |
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} |
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/** |
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* Inserta el punto de consulta. |
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* |
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* @param p punto de consulta. |
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*/ |
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public void setQueriedPoint(Point2D p) {
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point = p; |
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} |
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/** |
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* @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#stop() |
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*/ |
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public void stop(FLayer layer) {
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} |
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/** |
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* @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#visit(com.iver.cit.gvsig.fmap.core.IGeometry, |
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* int) |
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*/ |
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public void visit(IGeometry g, int index) {
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if (ct != null) {
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g.reProject(ct); |
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} |
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/** |
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* @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#start() |
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*/ |
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public boolean start(FLayer layer) {
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bitset = new FBitSet(); |
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recPoint = new Rectangle2D.Double(point.getX() - |
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(tolerance / 2), point.getY() - (tolerance / 2), tolerance, |
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tolerance); |
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return true; |
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} |
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if (g.intersects(recPoint)) {
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bitset.set(index, true); |
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} else {
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bitset.set(index, false); |
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} |
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} |
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/** |
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* @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#stop() |
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*/ |
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public void stop(FLayer layer) {
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} |
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/** |
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* @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#start() |
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*/ |
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public boolean start(FLayer layer) {
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bitset = new FBitSet(); |
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recPoint = new Rectangle2D.Double(point.getX() - (tolerance / 2), |
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point.getY() - (tolerance / 2), tolerance, tolerance); |
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return true; |
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} |
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} |
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