svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / operations / strategies / QueryByPointVisitor.java @ 235
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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 java.util.BitSet; |
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import com.iver.cit.gvsig.fmap.core.FGeometry; |
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import com.iver.cit.gvsig.fmap.layers.FLayer; |
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import com.iver.cit.gvsig.fmap.operations.QueriedPoint; |
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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 QueriedPoint point = null; |
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private double tolerance; |
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private FLayer layer=null; |
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private BitSet bitset=null; |
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private Rectangle2D recPoint=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 BitSet 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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} |
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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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* 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(QueriedPoint 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#visit(com.iver.cit.gvsig.fmap.core.FGeometry,
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* int)
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*/
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public void visit(FGeometry g, int index) { |
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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() { |
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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 void start() { |
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bitset = new BitSet(); |
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recPoint = new Rectangle2D.Double(point.getRealX() - |
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(tolerance / 2), point.getRealY() - (tolerance / 2), tolerance, |
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tolerance); |
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} |
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} |