gvsig-raster / org.gvsig.raster.tools / trunk / templates / examples / org.gvsig.raster.roimask / org.gvsig.raster.roimask.app / org.gvsig.raster.roimask.app.client / src / main / java / org / gvsig / raster / roimask / app / ROIMaskPreview.java @ 1908
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package org.gvsig.raster.roimask.app; |
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import java.awt.Graphics2D; |
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import java.awt.geom.Rectangle2D; |
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import java.awt.image.BufferedImage; |
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import java.io.File; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.List; |
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import org.gvsig.fmap.dal.coverage.RasterLocator; |
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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.datastruct.NoData; |
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import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
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import org.gvsig.fmap.dal.coverage.exception.ROIException; |
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import org.gvsig.fmap.dal.coverage.grid.ROI; |
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import org.gvsig.fmap.dal.coverage.grid.render.ImageDrawer; |
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import org.gvsig.fmap.dal.coverage.store.props.Transparency; |
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import org.gvsig.gui.beans.imagenavigator.ImageUnavailableException; |
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import org.gvsig.raster.fmap.layers.FLyrRaster; |
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import org.gvsig.raster.roimask.algorithm.ROIMaskProcess; |
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import org.gvsig.raster.roimask.app.ROIMaskExtension.LayerElement; |
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import org.gvsig.raster.roimask.swing.ROIMaskData; |
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import org.gvsig.raster.swing.preview.DataSourcePreview; |
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import org.gvsig.raster.algorithm.RasterBaseAlgorithmLibrary; |
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import org.gvsig.raster.algorithm.process.ProcessException; |
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import org.gvsig.raster.algorithm.process.RasterProcess; |
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import org.gvsig.tools.task.Cancellable; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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@SuppressWarnings("deprecation") |
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public class ROIMaskPreview implements DataSourcePreview { |
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private FLyrRaster inputLyr = null; |
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private Extent bbox = null; |
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private ROIMaskData data = null; |
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private static final Logger logger = LoggerFactory.getLogger(ROIMaskPreview.class); |
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public void setData(ROIMaskData data) { |
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this.data = data;
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loadLayers(); |
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} |
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private void loadLayers() { |
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if(data == null) |
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return;
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Object obj = data.getInputLayer();
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if(obj != null) |
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inputLyr = (FLyrRaster)((LayerElement)data.getInputLayer()).getLayer(); |
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if(inputLyr != null) |
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bbox = inputLyr.getFullRasterExtent(); |
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} |
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public void closePreviewLayer() { |
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} |
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public double getCellSize() { |
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if(inputLyr != null) |
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return inputLyr.getDataStore().getCellSize();
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return 1; |
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} |
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public DataSourcePreview cloneDataSourcePreview() {
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return this; |
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} |
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public void popStatus() { |
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} |
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public void pushStatus() { |
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} |
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public void draw(BufferedImage image, Graphics2D g, double[] coords, int w, int h, Cancellable cancel, double scale) throws ImageUnavailableException { |
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//Posici?n de inicio dibujado dentro del Graphics
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int x = 0; |
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int y = 0; |
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//Coordenadas de la petici?n
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double iniX = coords[0]; |
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double iniY = coords[1]; |
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double endX = coords[2]; |
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double endY = coords[3]; |
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//Se ajustan las coordenadas de petici?n, ancho y alto en coordenadas p?xel,
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//as? como la coordenada de inicio de dibujado
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if(bbox.getULX() > coords[0]) { |
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iniX = bbox.getULX(); |
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x = (int)(((iniX - coords[0]) * w) / Math.abs(coords[2] - coords[0])); |
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} |
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if(bbox.getULY() < coords[1]) { |
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iniY = bbox.getULY(); |
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y = (int)(((coords[1] - iniY) * h) / Math.abs(coords[3] - coords[1])); |
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} |
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if(bbox.getLRX() < coords[2]) |
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endX = bbox.getLRX(); |
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if(bbox.getLRY() > coords[3]) |
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endY = bbox.getLRY(); |
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if(iniX != coords[0] || endX != coords[2]) { |
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w = (int)((Math.abs(endX - iniX) * w) / Math.abs(coords[2] - coords[0])); |
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} |
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if(iniY != coords[1] || endY != coords[3]) { |
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h = (int)((Math.abs(iniY - endY) * h) / Math.abs(coords[3] - coords[1])); |
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} |
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Extent ext = RasterLocator.getManager().getDataStructFactory().createExtent(iniX, iniY, endX, endY); |
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BufferedImage img = throwProcess(ext, w, h);
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g.drawImage(img, x, y, null);
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} |
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/**
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* Throws the process sequentially. Since the preview is small,
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* it should not taken a lot of time
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* is small
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* @param ext
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* @param w
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* @param h
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* @return
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*/
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@SuppressWarnings("unchecked") |
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private BufferedImage throwProcess(Extent ext, int w, int h) { |
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loadLayers(); |
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RasterProcess task; |
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try {
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task = RasterBaseAlgorithmLibrary.getManager().createRasterTask("ROIMaskProcess");
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task.addParam(ROIMaskProcess.RASTER_STORE1, inputLyr.getDataStore()); |
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task.addParam(ROIMaskProcess.TEST_EXTENT, ext); |
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task.addParam(ROIMaskProcess.TEST_WIDTH, w); |
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task.addParam(ROIMaskProcess.TEST_HEIGHT, h); |
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task.addParam(ROIMaskProcess.ROIS, getROIsSelected()); |
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task.addParam(ROIMaskProcess.ALPHA, data.getAlpha()); |
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task.addParam(ROIMaskProcess.INVERSE, data.isInverse()); |
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task.addParam(ROIMaskProcess.NODATA, getNoDataSelected()); |
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task.addParam(ROIMaskProcess.EXPORT, false);
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} catch (ProcessException e1) {
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e1.printStackTrace(); |
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return null; |
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} catch (ROIException e) {
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e.printStackTrace(); |
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return null; |
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} |
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task.init(); |
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try {
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task.process(); |
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} catch (ProcessInterruptedException e1) {
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return null; |
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} catch (ProcessException e) {
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logger.debug("Error in process");
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return null; |
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} |
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HashMap<String, Object> map = (HashMap<String, Object>)task.getResult(); |
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Buffer buf = (Buffer)map.get(ROIMaskProcess.BUFFER); |
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Buffer alphaBand = (Buffer)map.get(ROIMaskProcess.ALPHA_BAND); |
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buf.setDataExtent(ext.toRectangle2D()); |
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if(buf.getBandCount() == 1) { |
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buf.replicateBand(0, 1); |
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buf.replicateBand(0, 2); |
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} |
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Transparency transparency = RasterLocator.getManager().getDataStructFactory().createTransparency();
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if(alphaBand != null) { |
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transparency.setAlphaBand(alphaBand); |
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transparency.activeTransparency(); |
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} |
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ImageDrawer drawer = RasterLocator.getManager().createImageDrawerService(); |
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drawer.setBuffer(buf); |
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drawer.setLastTransparency(transparency); |
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try {
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if(inputLyr.getDataStore().getDataType()[0] != Buffer.TYPE_BYTE) |
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drawer.addEnhanced(inputLyr.getDataStore().getStatistics(), true, 0.2); |
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return (BufferedImage)drawer.drawBufferOverImageObject(); |
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} catch (ProcessInterruptedException e) {
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return null; |
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} |
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} |
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private NoData getNoDataSelected() {
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NoData nodata = RasterLocator.getManager().getDataStructFactory().createDefaultNoData( |
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inputLyr.getDataStore().getBandCount(), inputLyr.getDataStore().getDataType()[0]);
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nodata.setValue(data.getValueNoData()); |
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return nodata;
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} |
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private ROI[] getROIsSelected() throws ROIException { |
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List<ROI> roi = inputLyr.getRois();
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boolean[] roisSelected = data.getROIsSelected(); |
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List<ROI> roisToDraw = new ArrayList<ROI>(); |
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for (int i = 0; i < roisSelected.length; i++) { |
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if(roisSelected[i])
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roisToDraw.add(roi.get(i)); |
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} |
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return roisToDraw.toArray(new ROI[0]); |
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} |
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public Object getSource() { |
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return null; |
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} |
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public Rectangle2D getBBoxRectangle() { |
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if(inputLyr != null) |
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return inputLyr.getFullRasterExtent().toRectangle2D();
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return new Rectangle2D.Double(); |
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} |
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public void addParams(RasterProcess task, String path, String fileName) throws ROIException { |
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if(!fileName.matches("([*]\\.[???])")) { |
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fileName += ".tif";
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} |
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task.addParam(ROIMaskProcess.PATH, path + File.separator + fileName);
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task.addParam(ROIMaskProcess.RASTER_STORE1, inputLyr.getDataStore()); |
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task.addParam(ROIMaskProcess.ROIS, getROIsSelected()); |
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task.addParam(ROIMaskProcess.ALPHA, data.getAlpha()); |
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task.addParam(ROIMaskProcess.INVERSE, data.isInverse()); |
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task.addParam(ROIMaskProcess.NODATA, getNoDataSelected()); |
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task.addParam(ROIMaskProcess.EXPORT, true);
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} |
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} |