gvsig-geoprocess / org.gvsig.geoprocess / trunk / org.gvsig.geoprocess / org.gvsig.geoprocess.lib / org.gvsig.geoprocess.lib.sextante / src / main / java / org / gvsig / geoprocess / lib / sextante / dataObjects / FLyrRasterIRasterLayer.java @ 469
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2012 gvSIG Association.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.geoprocess.lib.sextante.dataObjects; |
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import java.awt.geom.Rectangle2D; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataManager; |
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import org.gvsig.fmap.dal.coverage.RasterLocator; |
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import org.gvsig.fmap.dal.coverage.RasterManager; |
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import org.gvsig.fmap.dal.coverage.dataset.Buffer; |
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import org.gvsig.fmap.dal.coverage.datastruct.Extent; |
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import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
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import org.gvsig.fmap.dal.coverage.exception.QueryException; |
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import org.gvsig.fmap.dal.coverage.store.RasterDataStore; |
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import org.gvsig.fmap.dal.coverage.store.RasterQuery; |
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import org.gvsig.fmap.dal.coverage.store.parameter.RasterFileStoreParameters; |
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import org.gvsig.fmap.dal.exception.CloseException; |
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import org.gvsig.fmap.dal.exception.InitializeException; |
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import org.gvsig.fmap.dal.exception.ProviderNotRegisteredException; |
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import org.gvsig.fmap.dal.exception.ValidateDataParametersException; |
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import org.gvsig.fmap.mapcontext.exceptions.LoadLayerException; |
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import org.gvsig.raster.fmap.layers.DefaultFLyrRaster; |
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import org.gvsig.raster.fmap.layers.FLyrRaster; |
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import es.unex.sextante.core.AnalysisExtent; |
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import es.unex.sextante.core.Sextante; |
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import es.unex.sextante.dataObjects.AbstractRasterLayer; |
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import es.unex.sextante.outputs.IOutputChannel; |
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/**
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* A wrapper for a gvSIG Raster layer. Allows only reading, but not writing to
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* it
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*
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*/
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public class FLyrRasterIRasterLayer extends AbstractRasterLayer { |
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private FLyrRaster lyr = null; |
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private Buffer m_Buffer = null; |
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private int xTranslate = 0; |
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private int yTranslate = 0; |
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private AnalysisExtent layerExtent = null; |
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private String lyrName = null; |
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private String fName = null; |
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public FLyrRasterIRasterLayer() {
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} |
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public FLyrRasterIRasterLayer(String fName) { |
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this.fName = fName;
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} |
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public String getFileName() { |
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return fName;
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} |
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public void create(final FLyrRaster lyr) { |
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this.lyr = lyr;
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} |
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private RasterDataStore getDataStore() {
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return lyr == null ? null : lyr.getDataStore(); |
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} |
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public int getDataType() { |
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return getDataStore().getDataType()[0]; |
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} |
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public void setCellValue(final int x, final int y, final int iBand, |
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final double dValue) { |
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} |
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public void setNoDataValue(final double dNoDataValue) { |
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getDataStore().getNoDataValue().setValue(Double.valueOf(dNoDataValue));
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} |
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@Override
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public void setNoData(final int x, final int y) { |
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} |
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public double getNoDataValue() { |
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if(getDataStore().getNoDataValue().getValue() != null) |
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return getDataStore().getNoDataValue().getValue().doubleValue();
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return -99999.0; |
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} |
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public double getCellValueInLayerCoords(final int x, final int y, |
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final int iBand) { |
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int newx = x - xTranslate;
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int newy = y - yTranslate;
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if(m_Buffer == null) |
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open(); |
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if (m_Buffer.isInside(newx, newy)) {
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switch (getDataStore().getDataType()[0]) { |
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case Buffer.TYPE_BYTE: |
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return m_Buffer.getElemByte(newy, newx, iBand);
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case Buffer.TYPE_SHORT: |
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return m_Buffer.getElemShort(newy, newx, iBand);
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case Buffer.TYPE_INT: |
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return m_Buffer.getElemInt(newy, newx, iBand);
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case Buffer.TYPE_FLOAT: |
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return m_Buffer.getElemFloat(newy, newx, iBand);
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case Buffer.TYPE_DOUBLE: |
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default:
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return m_Buffer.getElemDouble(newy, newx, iBand);
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} |
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} else {
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return getNoDataValue();
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} |
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} |
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public int getBandsCount() { |
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return getDataStore().getBandCount();
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} |
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public String getName() { |
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return getDataStore().getName();
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} |
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public void postProcess() { |
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} |
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public void open() { |
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if(getDataStore() == null) |
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setBaseDataObject(fName); |
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RasterQuery query = RasterLocator.getManager().createQuery(); |
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query.setAllDrawableBands(); |
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try {
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query.setAreaOfInterest(); |
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m_Buffer = getDataStore().query(query); |
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} catch (QueryException e) {
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Sextante.addErrorToLog(e); |
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} catch (ProcessInterruptedException e) {
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Sextante.addErrorToLog(e); |
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} |
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} |
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public void close() { |
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if(m_Buffer != null) |
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m_Buffer.dispose(); |
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} |
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public Rectangle2D getFullExtent() { |
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return getDataStore().getExtent().toRectangle2D();
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} |
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public AnalysisExtent getLayerGridExtent() {
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if(layerExtent == null) { |
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try {
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layerExtent = new AnalysisExtent();
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layerExtent.setCellSize(getDataStore().getCellSize()); |
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Extent bbox = getDataStore().getExtent(); |
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layerExtent.setXRange(bbox.getMin().getX(), bbox.getMax().getX(), true);
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layerExtent.setYRange(bbox.getMin().getY(), bbox.getMax().getY(), true);
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} catch (final Exception e) { |
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return null; |
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} |
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} |
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return layerExtent;
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} |
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public void setWindowExtent(final AnalysisExtent extent) { |
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super.setWindowExtent(extent);
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RasterManager rManager = RasterLocator.getManager(); |
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RasterQuery query = rManager.createQuery(); |
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query.setReadOnly(true);
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int[] bands = new int[getDataStore().getBandCount()]; |
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for (int i = 0; i < getDataStore().getBandCount(); i++) { |
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bands[i] = i; |
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} |
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query.setDrawableBands(bands); |
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Extent ext = RasterLocator.getManager().getDataStructFactory().createExtent( |
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extent.getXMin(), |
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extent.getYMax(), |
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extent.getXMax(), |
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extent.getYMin()); |
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query.setAreaOfInterest(ext, extent.getNX(), extent.getNY()); |
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Buffer entireBuf = m_Buffer;
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try {
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m_Buffer = getDataStore().query(query); |
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//Calculamos la traslaci?n respecto a la ventana recortada pq Sextante pedir?
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//p?xeles en relaci?n a la imagen completa
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Extent bbox = getDataStore().getExtent(); |
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double distx = extent.getXMin() - bbox.getMin().getX();
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double disty = bbox.getMax().getY() - extent.getYMax();
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xTranslate = (int)Math.round((distx * extent.getNX()) / (extent.getXMax() - extent.getXMin())); |
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yTranslate = (int)Math.round((disty * extent.getNY()) / (extent.getYMax() - extent.getYMin())); |
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} catch (QueryException e) {
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m_Buffer = entireBuf; |
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} catch (ProcessInterruptedException e) {
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} |
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} |
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public double getLayerCellSize() { |
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return getDataStore().getCellSize();
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} |
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public Object getCRS() { |
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return getDataStore().getProjection();
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} |
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public void setName(final String name) { |
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this.lyrName = name;
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} |
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public void free() { |
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if(m_Buffer != null) |
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m_Buffer.dispose(); |
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try {
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getDataStore().close(); |
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} catch (CloseException e) {
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Sextante.addErrorToLog(e); |
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} |
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} |
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public Object getBaseDataObject() { |
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return lyr;
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} |
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public void setBaseDataObject(FLyrRaster lyr) { |
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this.lyr = lyr;
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} |
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public void setBaseDataObject(RasterDataStore store) { |
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DefaultFLyrRaster lyr = new DefaultFLyrRaster();
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try {
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lyr.setDataStore(store); |
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} catch (LoadLayerException e) {
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Sextante.addErrorToLog(e); |
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return;
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} |
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this.lyr = lyr;
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} |
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public void setBaseDataObject(String fileName) { |
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DataManager dataManager = DALLocator.getDataManager(); |
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try {
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RasterFileStoreParameters params = |
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(RasterFileStoreParameters)dataManager.createStoreParameters("Gdal Store");
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params.setURI(fileName); |
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RasterDataStore dataStore = (RasterDataStore)dataManager.openStore(params.getDataStoreName(), params); |
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setBaseDataObject(dataStore); |
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} catch (ValidateDataParametersException e) {
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Sextante.addErrorToLog(e); |
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} catch (InitializeException e) {
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Sextante.addErrorToLog(e); |
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} catch (ProviderNotRegisteredException e) {
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Sextante.addErrorToLog(e); |
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} |
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} |
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public IOutputChannel getOutputChannel() {
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return new IOutputChannel() { |
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public String getAsCommandLineParameter() { |
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return lyrName;
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} |
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}; |
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} |
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} |