root / branches / v2_0_0_prep / extensions / extRemoteSensing / src / org / gvsig / remotesensing / mosaic / process / FeatherProcessBuff.java @ 29641
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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.awt.image.DataBuffer; |
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import java.io.IOException; |
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import org.gvsig.andami.PluginServices; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.mapcontext.exceptions.LoadLayerException; |
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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.BufferInterpolation; |
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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.FileNotOpenException; |
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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.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.OutOfGridException; |
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import org.gvsig.raster.grid.filter.RasterFilter; |
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import org.gvsig.raster.grid.filter.enhancement.EnhancementStretchListManager; |
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import org.gvsig.raster.grid.filter.enhancement.LinearStretchParams; |
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import org.gvsig.raster.util.RasterToolsUtil; |
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import org.gvsig.remotesensing.RemoteSensingUtils; |
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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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* @params
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* <LI>FLyrRasterSE[] "inputRasterLayers": Capas raster de entrada</LI>
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* <LI>String "outputPath": Ruta completa al fichero de salida del proceso</LI>
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*
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* @result
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* <LI>FLyrRasterSE: Capa raster con el resultado del mosaico</LI>
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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 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 resultPxWidth, resultPxHeight= 0; |
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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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//Variables auxiliares:
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private double distances[] = null; |
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private byte values[] = null; |
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double value = 0; |
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private double totalD = 0; |
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private int bandCount = 0; |
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private double noDataValue = 0; |
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private double result[] = null; |
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private GeoRasterWriter grw;
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public void init() { |
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insertLineLog(PluginServices.getText(this, "preparando_entrada")+"..."); |
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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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Envelope env=inputRasterLayers[i].getFullEnvelope(); |
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inputExtents[i] = new Rectangle2D.Double(env.getMinimum(0), env.getMinimum(1), env.getLength(0), env.getLength(1)); |
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} |
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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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/*
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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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*/
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double cellSizeX = getMinCellSize()[0]; |
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double cellSizeY = getMinCellSize()[1]; |
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resultGridExtent = new GridExtent(new Extent(resultExtent), cellSizeX, |
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cellSizeY); |
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resultPxWidth = resultGridExtent.getNX(); |
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resultPxHeight = resultGridExtent.getNY(); |
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// Grid Resultante
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try {
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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("error_datos_entrada", this, e); |
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} |
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fileName = getStringParam("outputPath");
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values = new byte[resultbandCount]; |
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result = new double[resultbandCount]; |
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} |
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private double[] getMinCellSize() { |
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double minCellSize[] = new double[2]; |
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minCellSize[0]=Double.MAX_VALUE; |
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minCellSize[1]=Double.MAX_VALUE; |
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for (int i = 0; i< inputRasterLayers.length; i++) { |
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if(Math.abs(inputRasterLayers[i].getAffineTransform().getScaleX())<Math.abs(minCellSize[0])) |
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minCellSize[0]=inputRasterLayers[i].getAffineTransform().getScaleX();
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if(Math.abs(inputRasterLayers[i].getAffineTransform().getScaleY())<Math.abs(minCellSize[1])) |
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minCellSize[1]=inputRasterLayers[i].getAffineTransform().getScaleY();
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} |
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return minCellSize;
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} |
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public void process() throws InterruptedException { |
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// Calcular las lineas de borde (entre 0, 3 o 4 lineas)
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calculateBorders(); |
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distances = new double[borders.length]; |
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// Construccion de los buffers de entrada:
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IRasterDataSource dsetCopy = null;
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inputBuffers = new IBuffer[inputRasterLayers.length];
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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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GridExtent gridExtent = new GridExtent(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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inputRasterLayers[l].getAffineTransform().getScaleX(), |
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inputRasterLayers[l].getAffineTransform().getScaleY()); |
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try {
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bufferFactory.setAdjustToExtent(false);
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//bufferFactory.setNoDataToFill(resultGrid.getNoDataValue());
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bufferFactory.setNoDataToFill(inputRasterLayers[l].getNoDataValue()); |
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bufferFactory.setReadOnly(true);
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bufferFactory.setDrawableBands(inputRasterLayers[l].getRenderBands()); |
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/*bufferFactory.setAreaOfInterest(resultGridExtent.getMin().getX(), resultGridExtent.getMax().getY(),
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resultGridExtent.getMax().getX(), resultGridExtent.getMin().getY(), resultGridExtent.getNX(),resultGridExtent.getNY());*/
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bufferFactory.setAreaOfInterest(gridExtent.getMin().getX(), gridExtent.getMax().getY(), |
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gridExtent.getMax().getX(), gridExtent.getMin().getY(), gridExtent.getNX(),gridExtent.getNY()); |
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} catch (InvalidSetViewException e) {
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RasterToolsUtil.messageBoxError(PluginServices.getText(this, "error_datos_entrada"), this, e); |
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} catch (RasterDriverException e) {
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RasterToolsUtil.messageBoxError(PluginServices.getText(this, "error_datos_entrada"), this, e); |
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} |
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//Obtenere el burffer interpolado:
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inputBuffers[l] = bufferFactory.getRasterBuf(); |
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inputBuffers[l] = ((RasterBuffer)inputBuffers[l]).getAdjustedWindow(resultGridExtent.getNX(), resultGridExtent.getNY(), BufferInterpolation.INTERPOLATION_Bilinear); |
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//Aplicar filtro de realce si es necesario:
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if(inputBuffers[l].getDataType()!=DataBuffer.TYPE_BYTE){ |
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LinearStretchParams leParams = null;
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try {
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leParams = LinearStretchParams.createStandardParam(inputRasterLayers[l].getRenderBands(), 0.0, bufferFactory.getDataSource().getStatistics(), false); |
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} catch (FileNotOpenException 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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RasterFilter linearStretchEnhancementFilter = EnhancementStretchListManager.createEnhancedFilter(leParams, bufferFactory.getDataSource().getStatistics(), |
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inputRasterLayers[l].getRenderBands(), false);
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linearStretchEnhancementFilter.addParam("raster", inputBuffers[l]);
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linearStretchEnhancementFilter.execute(); |
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inputBuffers[l] = (IBuffer)linearStretchEnhancementFilter.getResult("raster");
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} |
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} |
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// Recorrido del grid resultante
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insertLineLog(PluginServices.getText(this, "realizando_degradado")+"..."); |
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for (int col = 0; col < resultPxWidth; col++) { |
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percent = col*100/resultPxWidth;
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for (int row = 0; row < resultPxHeight; row++) { |
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try {
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setValue(col, row); |
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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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// Se liberan los buffers
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for(int i=0; i<inputRasterLayers.length;i++) |
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inputBuffers[i].free(); |
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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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insertLineLog(PluginServices.getText(this, "escribiendo_resultado")+"..."); |
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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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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(), inputRasterLayers[0].getProjection());
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grw.dataWrite(); |
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grw.writeClose(); |
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resultGrid.getRasterBuf().free(); |
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outputRasterLayer = FLyrRasterSE.createLayer("outputLayer",
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fileName, inputRasterLayers[0].getProjection());
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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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return;
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} |
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byte value = 0; |
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for (int g = 0; g < inputBuffers.length; g++) { |
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if (inputExtents[g].contains(worldCoords)){
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for (int band = 0; band < inputBuffers[g].getBandCount(); band++) { |
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value = (byte)RemoteSensingUtils.getCellValueInLayerCoords(inputBuffers[g], col, row, band);
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resultGrid.setBandToOperate(band); |
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if ((byte)inputBuffers[g].getNoDataValue() != value) { |
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resultGrid.setCellValue(col, row, value); |
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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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} |
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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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totalD = 0;
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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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value = 0;
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bandCount = inputBuffers[i].getBandCount(); |
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noDataValue = (byte)inputBuffers[i].getNoDataValue();
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for (int band = 0; band < resultbandCount; band++) { |
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if (band < bandCount){
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value = RemoteSensingUtils.getCellValueInLayerCoords(inputBuffers[i], col,row, band); |
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if (noDataValue!=value)
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result[band] = result[band] + value * distances[i]; |
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} |
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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 Object getResult() { |
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return outputRasterLayer;
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} |
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public int getPercent() { |
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if (grw != null) |
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return grw.getPercent();
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return percent;
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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] |
| 426 |
.getMaxY(), inputExtents[1].getMaxX(), inputExtents[1] |
| 427 |
.getMinY()); |
| 428 |
if (inputExtents[0].intersectsLine(border)) |
| 429 |
borders[1][0] = border; |
| 430 |
else
|
| 431 |
borders[1][0] = null; |
| 432 |
|
| 433 |
border = new Line2D.Double(inputExtents[1].getMaxX(), inputExtents[1] |
| 434 |
.getMaxY(), inputExtents[1].getMaxX(), inputExtents[1] |
| 435 |
.getMinY()); |
| 436 |
if (inputExtents[0].intersectsLine(border)) |
| 437 |
borders[1][1] = border; |
| 438 |
else
|
| 439 |
borders[1][1] = null; |
| 440 |
|
| 441 |
border = new Line2D.Double(inputExtents[1].getMaxX(), inputExtents[1] |
| 442 |
.getMinY(), inputExtents[1].getMinX(), inputExtents[1] |
| 443 |
.getMinY()); |
| 444 |
if (inputExtents[0].intersectsLine(border)) |
| 445 |
borders[1][2] = border; |
| 446 |
else
|
| 447 |
borders[1][2] = null; |
| 448 |
|
| 449 |
border = new Line2D.Double(inputExtents[1].getMinX(), inputExtents[1] |
| 450 |
.getMinY(), inputExtents[1].getMinX(), inputExtents[1] |
| 451 |
.getMaxY()); |
| 452 |
if (inputExtents[0].intersectsLine(border)) |
| 453 |
borders[1][3] = border; |
| 454 |
else
|
| 455 |
borders[1][3] = null; |
| 456 |
} |
| 457 |
|
| 458 |
private Point2D rasterToWorld(int col, int row) { |
| 459 |
double worldX = resultGridExtent.getMin().getX() + (col + 0.5) |
| 460 |
* resultGridExtent.getCellSizeX(); |
| 461 |
double worldY = resultGridExtent.getMax().getY() + (row + 0.5) |
| 462 |
* resultGridExtent.getCellSizeY(); |
| 463 |
return new Point2D.Double(worldX, worldY); |
| 464 |
} |
| 465 |
} |