svn-gvsig-desktop / tags / v2_0_0_Build_2056 / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / layers / SpatialCache.java @ 39022
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package org.gvsig.fmap.mapcontext.layers; |
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import java.util.List; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.operation.tojts.ToJTS; |
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import com.vividsolutions.jts.geom.Envelope; |
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import com.vividsolutions.jts.index.ItemVisitor; |
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import com.vividsolutions.jts.index.quadtree.Quadtree; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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public class SpatialCache { |
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private static final Logger logger = LoggerFactory.getLogger(SpatialCache.class); |
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int maxFeatures = 1000; // Por defecto, pero se puede cambiar |
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int fastNumTotalRegs=0; |
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Quadtree quadTree = new Quadtree();
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private boolean enabled = false; |
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public int getMaxFeatures() { |
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return maxFeatures;
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} |
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public void setMaxFeatures(int maxFeatures) { |
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this.maxFeatures = maxFeatures;
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} |
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/**
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* M?todo de conveniencia
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*
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* @param r
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* @param igeometry
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*/
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public synchronized void insert(org.gvsig.fmap.geom.primitive.Envelope bounds, Geometry geom) { |
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if (isEnabled() && getMaxFeatures() >= size()) {
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Geometry bounds_geom = bounds.getGeometry(); |
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com.vividsolutions.jts.geom.Geometry env_jts = null;
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try {
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env_jts = (com.vividsolutions.jts.geom.Geometry) bounds_geom.invokeOperation( |
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ToJTS.CODE, null);
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Envelope env = env_jts.getEnvelopeInternal(); |
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this.insert(env, geom);
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} catch (Exception e) { |
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logger.info("Error while inserting (bounds,geometry).", e);
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} |
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} |
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} |
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public synchronized void query(Envelope searchEnv, ItemVisitor visitor) |
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{
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quadTree.query(searchEnv, visitor); |
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} |
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public synchronized List query(Envelope searchEnv) |
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{
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return quadTree.query(searchEnv);
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} |
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public void insert(Envelope itemEnv, Object item) { |
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if (isEnabled() && getMaxFeatures() >= size()) {
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quadTree.insert(itemEnv, item); |
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fastNumTotalRegs++; |
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} |
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} |
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public boolean remove(Envelope itemEnv, Object item) { |
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boolean resul = quadTree.remove(itemEnv, item);
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if (resul)
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fastNumTotalRegs--; |
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return resul;
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} |
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public int size() { |
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return fastNumTotalRegs;
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} |
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public void clearAll() { |
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quadTree = new Quadtree();
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fastNumTotalRegs = 0;
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} |
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public void remove(org.gvsig.fmap.geom.primitive.Envelope bounds, Geometry geom) { |
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Geometry bounds_geom = bounds.getGeometry(); |
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com.vividsolutions.jts.geom.Geometry env_jts = null;
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try {
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env_jts = (com.vividsolutions.jts.geom.Geometry) bounds_geom.invokeOperation( |
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ToJTS.CODE, null);
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Envelope env = env_jts.getEnvelopeInternal(); |
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this.remove(env, geom);
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} catch (Exception e) { |
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logger.info("Error while removing (bounds,geometry).", e);
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} |
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} |
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public boolean isEnabled() { |
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return enabled;
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} |
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public void setEnabled(boolean enabled) { |
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this.enabled = enabled;
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} |
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} |