gvsig-raster / org.gvsig.raster / branches / org.gvsig.raster.2.4 / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.buffer / org.gvsig.raster.lib.buffer.impl / src / main / java / org / gvsig / raster / lib / buffer / impl / AbstractBuffer.java @ 6493
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package org.gvsig.raster.lib.buffer.impl; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.NoninvertibleTransformException; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import java.util.List; |
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|
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IProjection; |
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|
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.Geometry.TYPES; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.raster.lib.buffer.api.Band; |
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import org.gvsig.raster.lib.buffer.api.Band.BandByte; |
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import org.gvsig.raster.lib.buffer.api.Band.BandDouble; |
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import org.gvsig.raster.lib.buffer.api.Band.BandFloat; |
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import org.gvsig.raster.lib.buffer.api.Band.BandInt; |
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import org.gvsig.raster.lib.buffer.api.Band.BandShort; |
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import org.gvsig.raster.lib.buffer.api.BandNotification; |
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import org.gvsig.raster.lib.buffer.api.Buffer; |
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import org.gvsig.raster.lib.buffer.api.BufferLocator; |
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import org.gvsig.raster.lib.buffer.api.BufferManager; |
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import org.gvsig.raster.lib.buffer.api.BufferNotification; |
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import org.gvsig.raster.lib.buffer.api.FilterList; |
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import org.gvsig.raster.lib.buffer.api.NoData; |
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import org.gvsig.raster.lib.buffer.api.exceptions.BandException; |
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import org.gvsig.raster.lib.buffer.api.exceptions.BufferException; |
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import org.gvsig.raster.lib.buffer.api.statistics.Statistics; |
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import org.gvsig.raster.lib.buffer.impl.statistics.DefaultStatistics; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.exception.BaseException; |
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import org.gvsig.tools.locator.LocatorException; |
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import org.gvsig.tools.observer.Notification; |
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import org.gvsig.tools.observer.Observable; |
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import org.gvsig.tools.observer.impl.BaseWeakReferencingObservable; |
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import org.gvsig.tools.task.SimpleTaskStatus; |
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|
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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|
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|
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/**
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* @author fdiaz
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*
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*/
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public abstract class AbstractBuffer extends BaseWeakReferencingObservable implements Buffer { |
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protected static final Logger logger = LoggerFactory.getLogger(AbstractBuffer.class); |
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protected List<Band> bands; |
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protected int rows; |
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protected int columns; |
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protected FilterList filters;
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protected Envelope envelope;
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protected IProjection projection;
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protected Statistics statistics;
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private Double pixelSizeX = null; |
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private Double pixelSizeY = null; |
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|
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// // to make disposable
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// private final Object lock = new Object();
|
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// private boolean disposed = false;
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|
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// public AbstractBuffer() {
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// if(ToolsLocator.getDisposableManager() != null) {
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// ToolsLocator.getDisposableManager().bind(this);
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// } else {
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// logger.warn("Can't retrieve the disposable manager,");
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// }
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// }
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@Override
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public Statistics getStatistics(SimpleTaskStatus status) {
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if (statistics == null) { |
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statistics = new DefaultStatistics(bands);
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// this.addObserver(statistics);
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} |
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if (!statistics.isCalculated()) {
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statistics.calculate(status); // scale ???
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} |
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return statistics;
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} |
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@Override
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public Iterator<Band> iterator() { |
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return bands.iterator();
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} |
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@Override
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public void update(Observable observable, Object notification) { |
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if (notification instanceof BandNotification && observable instanceof Band) { |
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Notification bandNotification = (Notification) notification; |
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if (bandNotification.getType().equals(BandNotification.COPY_FROM)
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|| bandNotification.getType().equals(BandNotification.FILL) |
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|| bandNotification.getType().equals(BandNotification.PUT_ROW) |
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|| bandNotification.getType().equals(BandNotification.SET)) { |
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this.statistics = null; |
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this.notifyObservers(new DefaultBufferNotification(BufferNotification.CHANGE_BAND, |
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new Object[] { observable })); |
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} |
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} |
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} |
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@Override
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public void filter(FilterList filterList) { |
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this.filters = filterList;
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} |
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@Override
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public int getBandCount() { |
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return bands.size();
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} |
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@Override
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public Band[] getBands() { |
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Band[] arrayBands = new Band[bands.size()]; |
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return bands.toArray(arrayBands);
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} |
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@Override
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public int getColumns() { |
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return this.columns; |
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} |
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@Override
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public int getRows() { |
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return this.rows; |
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} |
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@Override
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public Envelope getEnvelope() {
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return this.envelope; |
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} |
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@Override
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public IProjection getProjection() {
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return this.projection; |
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} |
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@Override
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public boolean isInside(int cellX, int cellY) { |
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return (cellX >= 0 && cellX < this.columns && cellY >= 0 && cellY < this.rows); |
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} |
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@Override
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public boolean isInside(Point point) { |
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if (getEnvelope() == null) { |
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return false; |
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} |
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try {
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return getEnvelope().getGeometry().contains(point);
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} catch (GeometryOperationNotSupportedException | GeometryOperationException e) {
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logger.warn("It could not determine if the point is on the envelope", e);
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return false; |
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} |
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} |
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@Override
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public void addBand(Band band) { |
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if (band.getColumns() != this.getColumns() || band.getRows() != this.getRows()) { |
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throw new IllegalArgumentException( |
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"Can not add band to buffer. Band must have the same rows and columns as buffer.");
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} |
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this.bands.add(band);
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band.addObserver(this);
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this.statistics = null; |
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this.notifyObservers(new DefaultBufferNotification(BufferNotification.ADD_BAND, new Object[] { band })); |
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} |
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@Override
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public void setBand(int pos, Band band) throws BandException { |
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this.bands.get(pos).copyFrom(band);
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this.statistics = null; |
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this.notifyObservers(new DefaultBufferNotification(BufferNotification.SET_BAND, new Object[] { pos, band })); |
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} |
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@Override
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public void removeBand(int pos) { |
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Band band = this.bands.get(pos);
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band.deleteObserver(this);
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this.bands.remove(pos);
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this.statistics = null; |
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this.notifyObservers(new DefaultBufferNotification(BufferNotification.REMOVE_BAND, new Object[] { pos })); |
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} |
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@Override
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public Band getBand(int pos) { |
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return this.bands.get(pos); |
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} |
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@Override
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public BandByte getBandByte(int pos) { |
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if (this.bands.get(pos).getDataType() != BufferManager.TYPE_BYTE) { |
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throw new IllegalArgumentException(String.format("Band in position %1s is type of %2s", pos, this.bands |
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.get(pos).getDataType())); |
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} |
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return (BandByte) this.bands.get(pos); |
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} |
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@Override
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public BandShort getBandShort(int pos) { |
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if (this.bands.get(pos).getDataType() != BufferManager.TYPE_SHORT) { |
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throw new IllegalArgumentException(String.format("Band in position %1s is type of %2s", pos, this.bands |
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.get(pos).getDataType())); |
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} |
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return (BandShort) this.bands.get(pos); |
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} |
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@Override
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public BandInt getBandInt(int pos) { |
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if (this.bands.get(pos).getDataType() != BufferManager.TYPE_INT) { |
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throw new IllegalArgumentException(String.format("Band in position %1s is type of %2s", pos, this.bands |
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.get(pos).getDataType())); |
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} |
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return (BandInt) this.bands.get(pos); |
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|
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} |
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@Override
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public BandFloat getBandFloat(int pos) { |
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if (this.bands.get(pos).getDataType() != BufferManager.TYPE_FLOAT) { |
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throw new IllegalArgumentException(String.format("Band in position %1s is type of %2s", pos, this.bands |
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.get(pos).getDataType())); |
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} |
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return (BandFloat) this.bands.get(pos); |
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} |
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@Override
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public BandDouble getBandDouble(int pos) { |
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if (this.bands.get(pos).getDataType() != BufferManager.TYPE_DOUBLE) { |
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throw new IllegalArgumentException(String.format("Band in position %1s is type of %2s", pos, this.bands |
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.get(pos).getDataType())); |
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} |
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return (BandDouble) this.bands.get(pos); |
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} |
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@Override
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public void switchBands(int[] positions) { |
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List<Integer> visited = new ArrayList<Integer>(); |
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if (positions.length != this.getBandCount()) { |
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throw new IllegalArgumentException("Position array length has to be the same as band count"); |
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} |
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for (int i = 0; i < positions.length; i++) { |
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Integer position = new Integer(positions[i]); |
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if (visited.contains(position)) {
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throw new IllegalArgumentException(String.format( |
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"Position array can not have duplicated bands. Duplicated value: %1s", position));
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} |
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visited.add(position); |
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} |
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List<Band> auxBands = new ArrayList<Band>(bands.size()); |
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for (int i = 0; i < visited.size(); i++) { |
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auxBands.add(bands.get(visited.get(i))); |
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} |
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bands = auxBands; |
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this.statistics = null; |
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this.notifyObservers(new DefaultBufferNotification(BufferNotification.SWITCH_BAND, new Object[] { positions })); |
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} |
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@Override
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public void switchBands(int pos1, int pos2) { |
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Band auxBand = bands.get(pos1); |
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bands.set(pos1, bands.get(pos2)); |
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bands.set(pos2, auxBand); |
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this.statistics = null; |
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this.notifyObservers(new DefaultBufferNotification(BufferNotification.SWITCH_BAND, new Object[] { pos1, pos2 })); |
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} |
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@Override
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public Buffer createInterpolated(int rows, int columns, int interpolationMode, SimpleTaskStatus status) |
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throws BufferException {
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if(rows==0 || columns==0){ |
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return null; |
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} |
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try {
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if (rows == getRows() && columns == getColumns()) {
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return (Buffer) this.clone(); |
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} |
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Buffer target =
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BufferLocator.getBufferManager().createBuffer(rows, columns, this.getBandTypes(),
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this.getBandNoData(), this.getProjection(), this.getEnvelope(), null); |
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BufferInterpolation interp = new BufferInterpolation();
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switch (interpolationMode) {
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case Buffer.INTERPOLATION_NearestNeighbour: |
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interp.nearestNeighbourInterpolation(this, target, status);
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break;
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case Buffer.INTERPOLATION_Bilinear: |
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interp.bilinearInterpolation(this, target, status);
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break;
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case Buffer.INTERPOLATION_InverseDistance: |
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interp.inverseDistanceInterpolation(this, target, status);
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break;
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case Buffer.INTERPOLATION_BicubicSpline: |
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interp.bicubicSplineInterpolation(this, target, status);
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break;
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case Buffer.INTERPOLATION_BSpline: |
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interp.bSplineInterpolation(this, target, status);
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break;
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} |
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return target;
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} catch (CloneNotSupportedException | LocatorException e) { |
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throw new BufferException(e); |
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} |
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} |
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@Override
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public Buffer convert(ICoordTrans ct, SimpleTaskStatus status) throws BufferException { |
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if (this.getEnvelope() == null) { |
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throw new IllegalStateException("Buffer envelope is null. A buffer allways has to have envelope"); |
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} |
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boolean isMyStatus = false; |
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if (status == null) { |
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status = |
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ToolsLocator.getTaskStatusManager().createDefaultSimpleTaskStatus( |
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String.format("Projecting buffer from %1s to %2s", ct.getPOrig().getAbrev(), ct.getPDest() |
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.getAbrev())); |
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status.add(); |
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isMyStatus = true;
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} else {
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status.push(); |
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} |
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Envelope projectedBufferEnvelope = this.getEnvelope().convert(ct);
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// Get size of new buffer
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double[] newsize = getSize(this.getEnvelope(), projectedBufferEnvelope, this.getColumns(), this.getRows()); |
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int projectedBufferColumns = (int) newsize[0]; |
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int projectedBufferRows = (int) newsize[1]; |
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int[] bandDataTypes = this.getBandTypes(); |
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NoData[] bandNoData = this.getBandNoData(); |
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status.message("Creating projected buffer");
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Buffer projectedBuffer =
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BufferLocator.getBufferManager().createBuffer(projectedBufferRows, projectedBufferColumns, bandDataTypes, |
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bandNoData, ct.getPDest(), projectedBufferEnvelope); |
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// This affine transform allow us to convert pixel to coordinate and inverse
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AffineTransform bufferAf = calculateAffineTransform(this.getEnvelope(), this.getRows(), this.getColumns()); |
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AffineTransform projectedBufferAf =
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calculateAffineTransform(projectedBufferEnvelope, projectedBufferRows, projectedBufferColumns); |
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ICoordTrans invertedCt = ct.getInverted(); |
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AffineTransform inverseBufferAf;
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try {
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inverseBufferAf = bufferAf.createInverse(); |
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} catch (NoninvertibleTransformException e1) { |
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status.abort(); |
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logger.error("Can not create inverse transformation of {}", bufferAf);
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throw new BufferException(e1); |
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} |
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status.setRangeOfValues(0,
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projectedBuffer.getRows() * projectedBuffer.getColumns() * projectedBuffer.getBandCount()); |
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status.message("Projecting buffer");
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Point point;
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try {
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point = (Point) GeometryLocator.getGeometryManager().create(TYPES.POINT, SUBTYPES.GEOM2D);
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} catch (CreateGeometryException | LocatorException e1) {
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status.abort(); |
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logger.error("Can not create point geometry to project buffer");
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throw new BufferException(e1); |
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} |
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for (int row = 0; row < projectedBuffer.getRows(); row++) { |
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|
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if (status.isCancellationRequested()) {
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status.cancel(); |
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return projectedBuffer;
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} |
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|
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for (int col = 0; col < projectedBuffer.getColumns(); col++) { |
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point.setX(col); |
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point.setY(row); |
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point.transform(projectedBufferAf); // projected buffer
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// pixel to world point
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// (target projection)
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point.reProject(invertedCt); // projected world point
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// to world point (source
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// projection)
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point.transform(inverseBufferAf); // world point to
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// pixel source
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// buffer
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|
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double floorPointX = Math.floor(point.getX()); |
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double floorPointY = Math.floor(point.getY()); |
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boolean isValidPoint =
|
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point.getX() >= 0 && floorPointX < this.getColumns() && point.getY() >= 0 |
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&& floorPointY < this.getRows();
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|
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for (int k = 0; k < this.getBandCount(); k++) { |
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|
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status.setCurValue(row * col * k); |
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Band band = this.bands.get(k);
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Number value = null; |
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if (isValidPoint) {
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value = (Number) band.get((int) floorPointY, (int) floorPointX); |
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} else if (band.getNoData().isDefined()) { |
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value = band.getNoData().getValue(); |
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} else {
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continue;
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} |
421 |
|
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Band projectedBand = projectedBuffer.getBand(k); |
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int dataType = projectedBand.getDataType();
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switch (dataType) {
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case BufferManager.TYPE_BYTE:
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projectedBand.set(row, col, value.byteValue()); |
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break;
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case BufferManager.TYPE_SHORT:
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projectedBand.set(row, col, value.shortValue()); |
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break;
|
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case BufferManager.TYPE_INT:
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projectedBand.set(row, col, value.intValue()); |
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break;
|
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case BufferManager.TYPE_FLOAT:
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projectedBand.set(row, col, value.floatValue()); |
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break;
|
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case BufferManager.TYPE_DOUBLE:
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projectedBand.set(row, col, value.doubleValue()); |
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break;
|
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default:
|
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break;
|
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} |
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} |
444 |
|
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} |
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} |
447 |
|
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if (isMyStatus) {
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status.terminate(); |
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} else {
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status.pop(); |
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} |
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return projectedBuffer;
|
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} |
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|
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private double[] getSize(Envelope envelope, Envelope projectedEnvelope, int p1x, int p1y) { |
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double sumSideOldBBox = envelope.getLength(0) + envelope.getLength(1); |
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double sumSideNewBBox = projectedEnvelope.getLength(0) + projectedEnvelope.getLength(1); |
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double d1x = (envelope.getLength(0) * 100) / sumSideOldBBox; |
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double d1y = (envelope.getLength(1) * 100) / sumSideOldBBox; |
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double d2x = (projectedEnvelope.getLength(0) * 100) / sumSideNewBBox; |
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double d2y = (projectedEnvelope.getLength(1) * 100) / sumSideNewBBox; |
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double p2y = (p1y * d2y) / d1y;
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double p2x = (p1x * d2x) / d1x;
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double newCellSizeX = projectedEnvelope.getLength(0) / p2x; |
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double newCellSizeY= projectedEnvelope.getLength(1) / p2y; |
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return new double[] { Math.round(p2x), Math.round(p2y), newCellSizeX, newCellSizeY }; |
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} |
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|
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private AffineTransform calculateAffineTransform(Envelope projectedBufferEnvelope, int projectedBufferRows, |
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int projectedBufferColumns) {
|
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|
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double cellSizeX = projectedBufferEnvelope.getLength(0) / projectedBufferColumns; |
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double cellSizeY = projectedBufferEnvelope.getLength(1) / projectedBufferRows; |
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return new AffineTransform(cellSizeX, 0d, 0d, -cellSizeY, projectedBufferEnvelope.getMinimum(0), |
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projectedBufferEnvelope.getMaximum(1));
|
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} |
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|
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|
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public int[] getBandTypes() { |
482 |
int[] bandDataTypes = new int[this.getBandCount()]; |
483 |
for (int i = 0; i < this.bands.size(); i++) { |
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bandDataTypes[i] = this.bands.get(i).getDataType();
|
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} |
486 |
return bandDataTypes;
|
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} |
488 |
|
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public NoData[] getBandNoData() { |
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NoData[] bandNoData = new NoData[this.getBandCount()]; |
491 |
for (int i = 0; i < this.bands.size(); i++) { |
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bandNoData[i] = this.bands.get(i).getNoData();
|
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} |
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return bandNoData;
|
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} |
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|
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@Override
|
498 |
public Buffer clip(Envelope envelope) throws BufferException { |
499 |
if(!this.envelope.intersects(envelope)){ |
500 |
return null; |
501 |
} |
502 |
try {
|
503 |
return BufferLocator.getBufferManager().createClippedBuffer(this, envelope); |
504 |
} catch (LocatorException | BufferException e) {
|
505 |
throw new BufferException(e); |
506 |
} |
507 |
} |
508 |
|
509 |
public double getPixelSizeX(){ |
510 |
if(pixelSizeX == null){ |
511 |
pixelSizeX = this.getEnvelope().getLength(0)/this.getColumns(); |
512 |
} |
513 |
return pixelSizeX.doubleValue();
|
514 |
} |
515 |
|
516 |
public double getPixelSizeY(){ |
517 |
if(pixelSizeY == null){ |
518 |
pixelSizeY = this.getEnvelope().getLength(1)/this.getRows(); |
519 |
} |
520 |
return pixelSizeY.doubleValue();
|
521 |
} |
522 |
|
523 |
// public final void dispose() {
|
524 |
// synchronized (lock) {
|
525 |
// // Check if we have already been disposed, and don't do it again
|
526 |
// if (!disposed) {
|
527 |
// if ( ToolsLocator.getDisposableManager().release(this) ) {
|
528 |
// try {
|
529 |
// doDispose();
|
530 |
// } catch (BaseException ex) {
|
531 |
// LOG.error("Error performing dispose", ex);
|
532 |
// }
|
533 |
// disposed = true;
|
534 |
// }
|
535 |
// }
|
536 |
// }
|
537 |
// }
|
538 |
//
|
539 |
// @Override
|
540 |
// public void doDispose() {
|
541 |
// for (Iterator iterator = bands.iterator(); iterator.hasNext();) {
|
542 |
// Band band = (Band) iterator.next();
|
543 |
// band.dispose();
|
544 |
// }
|
545 |
// envelope = null;
|
546 |
// projection = null;
|
547 |
// //TODO: ?FilterList Disposable?
|
548 |
// filters = null;
|
549 |
// //TODO: ?Statistics Disposable?
|
550 |
// statistics = null;
|
551 |
//
|
552 |
// pixelSizeX = null;
|
553 |
// pixelSizeY = null;
|
554 |
// }
|
555 |
|
556 |
@Override
|
557 |
protected void finalize() throws Throwable { |
558 |
super.finalize();
|
559 |
logger.info("AbstractBuffer with rows = "+rows+" columns = "+columns+" CLEANED"); |
560 |
|
561 |
} |
562 |
} |