root / trunk / extensions / extRemoteSensing / src / org / gvsig / remotesensing / mosaic / process / FeatherProcessBuff.java @ 21794
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2008 Instituto de Desarrollo Regional and Generalitat Valenciana.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Iba?ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* Instituto de Desarrollo Regional (Universidad de Castilla La-Mancha)
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* Campus Universitario s/n
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* 02071 Alabacete
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* Spain
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*
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* +34 967 599 200
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*/
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package org.gvsig.remotesensing.mosaic.process; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Line2D; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.io.IOException; |
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import org.gvsig.fmap.raster.layers.FLyrRasterSE; |
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import org.gvsig.raster.RasterProcess; |
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import org.gvsig.raster.buffer.BufferFactory; |
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import org.gvsig.raster.buffer.RasterBuffer; |
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import org.gvsig.raster.buffer.RasterBufferInvalidException; |
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import org.gvsig.raster.buffer.WriterBufferServer; |
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import org.gvsig.raster.dataset.GeoRasterWriter; |
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import org.gvsig.raster.dataset.IBuffer; |
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import org.gvsig.raster.dataset.IRasterDataSource; |
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import org.gvsig.raster.dataset.InvalidSetViewException; |
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import org.gvsig.raster.dataset.NotSupportedExtensionException; |
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import org.gvsig.raster.dataset.io.RasterDriverException; |
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import org.gvsig.raster.datastruct.Extent; |
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import org.gvsig.raster.grid.Grid; |
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import org.gvsig.raster.grid.GridExtent; |
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import org.gvsig.raster.grid.GridInterpolated; |
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import org.gvsig.raster.grid.OutOfGridException; |
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import org.gvsig.raster.util.RasterToolsUtil; |
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import com.iver.andami.PluginServices; |
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import com.iver.cit.gvsig.exceptions.layers.LoadLayerException; |
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/**
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* Proceso para la obtenci?n de una imagen mosaico a partir de un conjunto de
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* im?genes por el metodo de degradado (Feathering).
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*
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* @author Diego Guerrero Sevilla (diego.guerrero@uclm.es)
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*
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*/
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public class FeatherProcessBuff extends RasterProcess { |
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private FLyrRasterSE inputRasterLayers[] = null; |
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private IBuffer inputBuffers[] = null; |
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private int xResolution, yResolution = 0; |
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private FLyrRasterSE outputRasterLayer = null; |
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private Line2D borders[][] = null; |
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private Rectangle2D inputExtents[] = null; |
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private Rectangle2D intersection = null; |
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private Grid resultGrid = null; |
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private GridExtent resultGridExtent = null; |
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private int resultbandCount = 0; |
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private WriterBufferServer writerBufferServer = null; |
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private String fileName = null; |
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int percent = 0; |
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public void init() { |
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// Obtener las capas que intervienen en el mosaico.
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inputRasterLayers = (FLyrRasterSE[]) getParam("inputRasterLayers"); |
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inputExtents = new Rectangle2D.Double[inputRasterLayers.length]; |
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for (int i = 0; i < inputRasterLayers.length; i++) |
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inputExtents[i] = inputRasterLayers[i].getFullExtent(); |
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intersection = new Rectangle2D.Double(); |
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Rectangle2D.intersect(inputExtents[0], inputExtents[1], intersection); |
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Rectangle2D resultExtent = new Rectangle2D.Double(); |
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Rectangle2D.union(inputExtents[0], inputExtents[1], resultExtent); |
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// TODO: Contemplar el caso de capas con distinto tama?o de celda.
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double cellSizeX = inputRasterLayers[0].getAffineTransform() |
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.getScaleX(); |
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double cellSizeY = inputRasterLayers[0].getAffineTransform() |
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.getScaleY(); |
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resultGridExtent = new GridExtent(new Extent(resultExtent), cellSizeX, |
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cellSizeY); |
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xResolution = resultGridExtent.getNX(); |
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yResolution = resultGridExtent.getNY(); |
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// Grid Resultante
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try {
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// TODO: Determiar el tipo de dato y n?mero de bandas.
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resultGrid = new Grid(resultGridExtent, resultGridExtent,
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IBuffer.TYPE_BYTE, new int[] { 0, 1, 2 }); |
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resultGrid.setNoDataValue(0);
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resultbandCount = resultGrid.getBandCount(); |
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} catch (RasterBufferInvalidException e) {
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RasterToolsUtil.messageBoxError("buffer_incorrecto", this, e); |
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} |
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fileName = getStringParam("filename");
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} |
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public void process() throws InterruptedException { |
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// Calculara las lineas de borde (entre 0, 3 o 4 lineas)
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calculateBorders(); |
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// Construccion de los grid de entrada:
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IRasterDataSource dsetCopy = null;
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inputBuffers = new IBuffer[inputRasterLayers.length];
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int drawableBands[] = { 0, 1, 2 }; |
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for (int l = 0; l < inputRasterLayers.length; l++) { |
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dsetCopy = inputRasterLayers[l].getDataSource().newDataset(); |
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BufferFactory bufferFactory = new BufferFactory(dsetCopy);
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bufferFactory.setAdjustToExtent(false);
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bufferFactory.setDrawableBands(drawableBands); |
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try {
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if (RasterBuffer.isBufferTooBig(new double[] { |
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resultGridExtent.getMin().getX(), |
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resultGridExtent.getMin().getY(), |
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resultGridExtent.getMax().getX(), |
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resultGridExtent.getMax().getY() }, |
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drawableBands.length)) |
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bufferFactory.setReadOnly(true);
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bufferFactory.setAreaOfInterest(resultGridExtent.getMin() |
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.getX(), resultGridExtent.getMax().getY(), |
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resultGridExtent.getMax().getX() |
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- resultGridExtent.getMin().getX(), |
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resultGridExtent.getMax().getY() |
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- resultGridExtent.getMin().getY()); |
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} catch (InvalidSetViewException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} catch (RasterDriverException e) {
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// TODO Auto-generated catch block
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e.printStackTrace(); |
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} |
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inputBuffers[l] = bufferFactory.getRasterBuf(); |
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insertLineLog(RasterToolsUtil.getText(this, "interpolando")); |
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inputBuffers[l] = ((RasterBuffer) inputBuffers[l]) |
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.getAdjustedWindow(xResolution, yResolution, |
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GridInterpolated.INTERPOLATION_NearestNeighbour); |
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} |
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// Recorrido del grid resultante
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// for (int band = 0; band < resultGrid.getBandCount(); band++){
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// resultGrid.setBandToOperate(band);
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for (int col = 0; col < resultGrid.getNX(); col++) { |
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// percent =
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// col*resultGrid.getBandCount()*100/resultGrid.getNX()*resultGrid.getBandCount();
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for (int row = 0; row < resultGrid.getNY(); row++) { |
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try {
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setValue(col, row); |
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// resultGrid.setCellValue(col, row, getValue(col, row,
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// band));
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} catch (OutOfGridException e) {
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RasterToolsUtil.messageBoxError(PluginServices.getText( |
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this, "bad_access_grid"), this, e); |
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} |
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} |
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} |
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// }
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createLayer(); |
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if (externalActions != null) |
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externalActions.end(outputRasterLayer); |
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} |
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private void createLayer() { |
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writerBufferServer = new WriterBufferServer(resultGrid.getRasterBuf());
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AffineTransform aTransform = new AffineTransform(resultGridExtent |
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.getCellSizeX(), 0.0, 0.0, resultGridExtent.getCellSizeY(), |
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resultGridExtent.getMin().getX(), resultGridExtent.getMax() |
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.getY()); |
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GeoRasterWriter grw; |
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try {
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grw = GeoRasterWriter.getWriter(writerBufferServer, fileName, |
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resultGrid.getBandCount(), aTransform, resultGridExtent |
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.getNX(), resultGridExtent.getNY(), resultGrid |
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.getDataType(), GeoRasterWriter.getWriter(fileName) |
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.getParams(), null);
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grw.dataWrite(); |
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grw.writeClose(); |
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outputRasterLayer = FLyrRasterSE.createLayer("outputLayer",
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fileName, null);
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} catch (NotSupportedExtensionException e) {
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RasterToolsUtil.messageBoxError(PluginServices.getText(this,
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"error_writer_notsupportedextension"), this, e); |
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} catch (RasterDriverException e) {
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RasterToolsUtil.messageBoxError(PluginServices.getText(this,
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"raster_buffer_invalid_extension"), this, e); |
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} catch (IOException e) { |
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RasterToolsUtil.messageBoxError(PluginServices.getText(this,
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"error_writer"), this, e); |
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} catch (InterruptedException e) { |
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Thread.currentThread().interrupt();
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} catch (LoadLayerException e) {
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RasterToolsUtil.messageBoxError("error_cargar_capa", this, e); |
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} |
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} |
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private void setValue(int col, int row) throws OutOfGridException { |
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// ?Est? el punto en la intersecci?n?
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Point2D worldCoords = rasterToWorld(col, row);
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if (intersection.contains(worldCoords)) {
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setFeatherValue(col, row); |
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/*
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* for (int band = 0; band<resultbandCount; band++){
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* resultGrid.setBandToOperate(band); resultGrid.setCellValue(col,
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* row, (byte)255); }
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*/
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return;
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} |
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byte values[] = new byte[resultbandCount]; |
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for (int g = 0; g < inputBuffers.length; g++) { |
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inputBuffers[g].getElemByte(row, col, values); |
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for (int band = 0; band < resultbandCount; band++) { |
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resultGrid.setBandToOperate(band); |
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if (inputBuffers[g].getNoDataValue() != values[band]) {
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resultGrid.setCellValue(col, row, values[band]); |
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} else {
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resultGrid.setCellValue(col, row, (byte) resultGrid
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.getNoDataValue()); |
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} |
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} |
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return;
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} |
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} |
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private void setFeatherValue(int col, int row) throws OutOfGridException { |
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Point2D worldPoint = rasterToWorld(col, row);
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double distances[] = new double[borders.length]; |
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byte values[] = new byte[resultbandCount]; |
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double totalD = 0; |
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double result[] = new double[resultbandCount]; |
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for (int i = 0; i < borders.length; i++) { |
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// C?lculo de la distancia m?nima a los bordes de cada imagen
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distances[i] = Double.POSITIVE_INFINITY;
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for (int j = 0; j < borders[0].length; j++) |
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if (borders[i][j] != null) { |
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double newDistance = borders[i][j].ptLineDist(worldPoint);
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if (distances[i] > newDistance)
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distances[i] = newDistance; |
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} |
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totalD = totalD + distances[i]; |
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inputBuffers[i].getElemByte(row, col, values); |
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for (int band = 0; band < resultbandCount; band++) { |
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result[band] = result[band] + values[band] * distances[i]; |
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} |
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} |
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// Escribir el resultado de cada banda.
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for (int band = 0; band < resultbandCount; band++) { |
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result[band] = result[band] / totalD; |
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resultGrid.setBandToOperate(band); |
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resultGrid.setCellValue(col, row, (byte) result[band]);
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result[band] = 0;
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} |
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} |
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public int getPercent() { |
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// TODO Auto-generated method stub
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return 0; |
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} |
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public String getTitle() { |
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return PluginServices.getText(this, "calculando_feather"); |
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} |
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/**
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* Calcula los bordes que interesan para la obtenci?n de distancias en el
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* proceso.
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*/
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private void calculateBorders() { |
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borders = new Line2D.Double[2][4]; |
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Line2D.Double border = new Line2D.Double(inputExtents[0].getMinX(), |
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inputExtents[0].getMaxY(), inputExtents[0].getMaxX(), |
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inputExtents[0].getMaxY());
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if (inputExtents[1].intersectsLine(border)) |
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borders[0][0] = border; |
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else
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borders[0][0] = null; |
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border = new Line2D.Double(inputExtents[0].getMaxX(), inputExtents[0] |
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.getMaxY(), inputExtents[0].getMaxX(), inputExtents[0] |
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.getMinY()); |
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if (inputExtents[1].intersectsLine(border)) |
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borders[0][1] = border; |
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else
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borders[0][1] = null; |
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border = new Line2D.Double(inputExtents[0].getMaxX(), inputExtents[0] |
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.getMinY(), inputExtents[0].getMinX(), inputExtents[0] |
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.getMinY()); |
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if (inputExtents[1].intersectsLine(border)) |
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borders[0][2] = border; |
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else
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borders[0][2] = null; |
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border = new Line2D.Double(inputExtents[0].getMinX(), inputExtents[0] |
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.getMinY(), inputExtents[0].getMinX(), inputExtents[0] |
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.getMaxY()); |
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if (inputExtents[1].intersectsLine(border)) |
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borders[0][3] = border; |
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else
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borders[0][3] = null; |
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border = new Line2D.Double(inputExtents[1].getMinX(), inputExtents[1] |
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.getMaxY(), inputExtents[1].getMaxX(), inputExtents[1] |
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.getMinY()); |
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if (inputExtents[0].intersectsLine(border)) |
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borders[1][0] = border; |
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else
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borders[1][0] = null; |
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border = new Line2D.Double(inputExtents[1].getMaxX(), inputExtents[1] |
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.getMaxY(), inputExtents[1].getMaxX(), inputExtents[1] |
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.getMinY()); |
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if (inputExtents[0].intersectsLine(border)) |
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borders[1][1] = border; |
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else
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borders[1][1] = null; |
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border = new Line2D.Double(inputExtents[1].getMaxX(), inputExtents[1] |
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.getMinY(), inputExtents[1].getMinX(), inputExtents[1] |
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.getMinY()); |
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if (inputExtents[0].intersectsLine(border)) |
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borders[1][2] = border; |
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else
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borders[1][2] = null; |
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border = new Line2D.Double(inputExtents[1].getMinX(), inputExtents[1] |
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.getMinY(), inputExtents[1].getMinX(), inputExtents[1] |
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.getMaxY()); |
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if (inputExtents[0].intersectsLine(border)) |
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borders[1][3] = border; |
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else
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borders[1][3] = null; |
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} |
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private Point2D rasterToWorld(int col, int row) { |
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double worldX = resultGridExtent.getMin().getX() + (col + 0.5) |
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* resultGridExtent.getCellSizeX(); |
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double worldY = resultGridExtent.getMax().getY() + (row + 0.5) |
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* resultGridExtent.getCellSizeY(); |
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return new Point2D.Double(worldX, worldY); |
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} |
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} |