gvsig-3d / 2.1 / trunk / org.gvsig.view3d / org.gvsig.view3d.swing / org.gvsig.view3d.swing.impl / src / main / java / org / gvsig / view3d / swing / impl / data / GvSIGLayerDataRaster.java @ 531
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright ? 2007-2015 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.view3d.swing.impl.data; |
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import gov.nasa.worldwind.WWObjectImpl; |
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import gov.nasa.worldwind.avlist.AVKey; |
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import gov.nasa.worldwind.avlist.AVList; |
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import gov.nasa.worldwind.data.BufferedImageRaster; |
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import gov.nasa.worldwind.data.ByteBufferRaster; |
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import gov.nasa.worldwind.data.DataRaster; |
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import gov.nasa.worldwind.geom.Sector; |
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|
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import java.awt.Dimension; |
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import java.awt.Graphics2D; |
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import java.awt.Rectangle; |
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import java.awt.geom.AffineTransform; |
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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.BufferedImage; |
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.fmap.crs.CRSFactory; |
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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.DataStructFactory; |
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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.exception.ReadException; |
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.exception.CreateEnvelopeException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.mapcontext.MapContext; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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import org.gvsig.fmap.mapcontext.layers.FLayer; |
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import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelable; |
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import org.gvsig.raster.fmap.layers.FLyrRaster; |
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import org.gvsig.view3d.lib.api.View3DLocator; |
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import org.gvsig.view3d.lib.api.View3DManager; |
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import org.gvsig.view3d.lib.api.properties.LayerProperties3D; |
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import org.gvsig.view3d.swing.api.MapControl3D; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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* Default implementation of {@link DataRaster}.
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*
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* @author <a href="mailto:lmarques@disid.com">Lluis Marques</a>
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*
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*/
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@SuppressWarnings("deprecation") |
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public class GvSIGLayerDataRaster extends WWObjectImpl implements DataRaster { |
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private static final Logger LOG = LoggerFactory |
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.getLogger(GvSIGLayerDataRaster.class); |
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private MapControl3D mapControl3D;
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private FLayer layer;
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private Extent canvasExtent;
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private Extent overlapExtent;
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/**
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* Default constructor of <code>GvSIGLayerDataRaster</code>
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*
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* @param mapControl3D
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* context where {@link FLayer} is loaded.
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* @param theLayer
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* source to get raster information
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* @param params
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* parameters of <code>GvSIGLayerDataRaster</code>
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*/
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public GvSIGLayerDataRaster(MapControl3D mapControl3D, FLayer theLayer,
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AVList params) { |
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if (params == null || mapControl3D == null || theLayer == null) { |
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throw new IllegalArgumentException(); |
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} |
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this.layer = theLayer;
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this.mapControl3D = mapControl3D;
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this.setValues(params.copy());
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} |
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public void dispose() { |
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} |
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public int getWidth() { |
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return (Integer) this.getValue(AVKey.WIDTH); |
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} |
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public int getHeight() { |
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return (Integer) this.getValue(AVKey.HEIGHT); |
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} |
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public Sector getSector() {
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return (Sector) this.getValue(AVKey.SECTOR); |
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} |
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public void drawOnTo(DataRaster canvas) { |
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View3DManager manager = View3DLocator.getManager(); |
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LayerProperties3D properties = manager.getLayerProperties(layer); |
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if (properties.getElevation() == true) { |
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if (this.layer instanceof FLyrRaster) { |
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this.drawRasterElevationOnTo(canvas);
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} else if (this.layer instanceof FLyrVect) { |
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this.drawVectElevationOnTo(canvas);
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} |
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} else {
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this.drawImageOnTo(canvas);
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} |
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} |
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private void drawRasterElevationOnTo(DataRaster canvas) { |
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if (canvas == null) { |
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throw new IllegalArgumentException(); |
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} |
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if (!(this.layer instanceof FLyrRaster) |
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|| !canvas.getSector().intersects(getSector())) { |
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return;
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} |
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Extent canvasExtent = getExtent(canvas.getSector()); |
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// Create query. Configure to get the zone request by canvas scaled to
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// tile size.
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RasterQuery query = RasterLocator.getManager().createQuery(); |
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query.setSupersamplingOption(false);
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query.setDrawableBands(new int[] { 0 }); |
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query.setReadOnly(true);
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query.storeLastBuffer(true);
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query.setAreaOfInterest(canvasExtent, canvas.getWidth(), |
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canvas.getHeight()); |
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Buffer adjustedBuffer = null; |
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FLyrRaster rasterLayer = (FLyrRaster) this.layer;
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RasterDataStore dataStore = rasterLayer.getDataStore(); |
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try {
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// For best performance, checks if canvas extent is the same than
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// last request. If it is the same, it will get last buffer
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// stored. Otherwise, it will do created query.
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if (canvasExtent.equals(this.canvasExtent) |
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&& dataStore.getLastBuffer() != null) {
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adjustedBuffer = dataStore.getLastBuffer(); |
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} else {
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adjustedBuffer = dataStore.query(query); |
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} |
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} catch (ProcessInterruptedException e) {
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LOG.error("Process interrupted while {} was executing a query",
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dataStore.getName(), e); |
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return;
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} catch (QueryException e) {
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LOG.error("Query exception, can apply {} to {}", new Object[] { |
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query.toString(), dataStore.getName() }, e); |
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return;
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} |
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// For performance reasons, stores canvas extent to avoid calculate it
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// in each iteration
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setCanvasEnxent(canvas.getSector()); |
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Sector overlap = this.getSector().intersection(canvas.getSector());
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setOverlapExtent(overlap); |
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String dataType = this.getStringValue(AVKey.DATA_TYPE); |
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for (int y = 0; y < canvas.getHeight(); y++) { |
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for (int x = 0; x < canvas.getWidth(); x++) { |
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Point2D rasterPoint =
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getRasterPoint(x, y, canvas, adjustedBuffer); |
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// If raster point is not null, get value of buffer and write it
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// to canvas
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if (rasterPoint != null) { |
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if (AVKey.INT8.equals(dataType)) {
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byte byteValue =
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adjustedBuffer.getElemByte( |
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(int) rasterPoint.getY(),
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(int) rasterPoint.getX(), 0); |
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setNumberToDataRaster((ByteBufferRaster) canvas, y, x, |
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byteValue); |
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} else if (AVKey.INT16.equals(dataType)) { |
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short shortValue =
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adjustedBuffer.getElemShort( |
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(int) rasterPoint.getY(),
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(int) rasterPoint.getX(), 0); |
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setNumberToDataRaster((ByteBufferRaster) canvas, y, x, |
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shortValue); |
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} else if (AVKey.INT32.equals(dataType)) { |
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int intValue =
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adjustedBuffer.getElemInt((int) rasterPoint.getY(),
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(int) rasterPoint.getX(), 0); |
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setNumberToDataRaster((ByteBufferRaster) canvas, y, x, |
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intValue); |
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} else if (AVKey.FLOAT32.equals(dataType)) { |
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float floatValue =
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adjustedBuffer.getElemFloat( |
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(int) rasterPoint.getY(),
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(int) rasterPoint.getX(), 0); |
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setNumberToDataRaster((ByteBufferRaster) canvas, y, x, |
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floatValue); |
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} else if (AVKey.FLOAT64.equals(dataType)) { |
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double doubleValue =
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adjustedBuffer.getElemDouble( |
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(int) rasterPoint.getY(),
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(int) rasterPoint.getX(), 0); |
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setNumberToDataRaster((ByteBufferRaster) canvas, y, x, |
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doubleValue); |
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} |
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} else {
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// Invalid point, write NoData value
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Number noData =
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(Number) this.getValue(AVKey.MISSING_DATA_SIGNAL); |
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if (AVKey.INT8.equals(dataType)) {
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setNumberToDataRaster((ByteBufferRaster) canvas, y, x, |
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noData.byteValue()); |
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} else if (AVKey.INT16.equals(dataType)) { |
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setNumberToDataRaster((ByteBufferRaster) canvas, y, x, |
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noData.shortValue()); |
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} else if (AVKey.INT32.equals(dataType)) { |
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setNumberToDataRaster((ByteBufferRaster) canvas, y, x, |
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noData.intValue()); |
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} else if (AVKey.FLOAT32.equals(dataType)) { |
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setNumberToDataRaster((ByteBufferRaster) canvas, y, x, |
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noData.floatValue()); |
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} else if (AVKey.FLOAT64.equals(dataType)) { |
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setNumberToDataRaster((ByteBufferRaster) canvas, y, x, |
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noData.doubleValue()); |
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} |
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} |
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} |
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} |
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} |
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private Point2D getRasterPoint(int x, int y, DataRaster canvas, |
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Buffer adjustedBuffer) {
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// Gets coordiantes of pixel raster
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Point2D worldPoint =
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canvasExtent.rasterToWorld(new Point2D.Double(x, y), |
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getCellSize(canvas.getSector(), canvas.getWidth())); |
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if (layer instanceof FLyrRaster) { |
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// Gets pixel of adjusted buffer
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Sector overlap = this.getSector().intersection(canvas.getSector());
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Point2D rasterPoint =
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overlapExtent.worldToRaster(worldPoint, |
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getCellSize(overlap, adjustedBuffer.getWidth())); |
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if (isPointOfBuffer(rasterPoint, adjustedBuffer)) {
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return rasterPoint;
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} |
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} |
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return null; |
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} |
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private void setCanvasEnxent(Sector canvasSector) { |
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this.canvasExtent = getExtent(canvasSector);
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} |
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private void setOverlapExtent(Sector overlap) { |
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this.overlapExtent = getExtent(overlap);
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} |
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private Extent getExtent(Sector sector){
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Rectangle2D rectangleDegrees = sector.toRectangleDegrees();
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RasterManager rasterManager = RasterLocator.getManager(); |
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DataStructFactory dataStructFactory = |
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rasterManager.getDataStructFactory(); |
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return dataStructFactory.createExtent(rectangleDegrees);
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} |
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private double getCellSize(Sector sector, int width) { |
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Rectangle2D rectangleDegrees = sector.toRectangleDegrees();
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return rectangleDegrees.getWidth() / width;
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} |
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private boolean isPointOfBuffer(Point2D rasterPoint, Buffer buffer) { |
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if (layer instanceof FLyrRaster) { |
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double x = rasterPoint.getX();
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double y = rasterPoint.getY();
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return x > -1 && y > -1 && x < buffer.getWidth() |
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&& y < buffer.getHeight() ? true : false; |
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} |
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return false; |
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} |
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private void setNumberToDataRaster(ByteBufferRaster byteBuferRaster, |
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int line, int col, Number value) { |
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byteBuferRaster.setDoubleAtPosition(line, col, value.doubleValue()); |
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} |
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private void drawVectElevationOnTo(DataRaster canvas) { |
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// TODO Auto-generated method stub
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} |
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private void drawImageOnTo(DataRaster canvas) { |
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if (canvas == null) { |
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throw new IllegalArgumentException(); |
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} |
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if (!canvas.getSector().intersects(getSector())) {
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return;
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} |
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Sector overlap = this.getSector().intersection(canvas.getSector());
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ViewPort viewPort = |
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new ViewPort(mapControl3D.getMapContext().getProjection());
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// Set adjustable to false to avoid problems with adjusted envelope
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viewPort.setAdjustable(false);
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GeometryManager geoManager = GeometryLocator.getGeometryManager(); |
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Envelope envelope = null;
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double[] degrees = overlap.asDegreesArray(); |
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try {
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IProjection projection = |
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mapControl3D.getMapContext().getProjection(); |
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ICoordTrans ct = CRSFactory.getCRS("EPSG:4326").getCT(projection);
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Point2D p1 =
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convert(ct, new Point2D.Double(degrees[2], degrees[0])); |
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Point2D p2 =
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convert(ct, new Point2D.Double(degrees[3], degrees[1])); |
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envelope = |
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geoManager.createEnvelope(Math.min(p1.getX(), p2.getX()),
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Math.min(p1.getY(), p2.getY()),
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Math.max(p1.getX(), p2.getX()),
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Math.max(p1.getY(), p2.getY()), SUBTYPES.GEOM2D);
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/**
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* Check if request tile intersect with layer envelope to avoid
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* the creation of useless tiles.
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*/
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if (!envelope.intersects(layer.getFullEnvelope())) {
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return;
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} |
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viewPort.setEnvelope(envelope); |
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} catch (CreateEnvelopeException e) {
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LOG.error( |
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"Can't create envelope from sector tile: minLat {} maxLat {} minLon {} maxLon {}",
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new Object[] { degrees[0], degrees[1], degrees[2], degrees[3] }); |
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return;
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} catch (ReadException e) {
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LOG.warn("Can't get full envelope of {}", layer.getName());
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} |
406 |
|
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int canvasWidth = canvas.getWidth();
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int canvasHeight = canvas.getHeight();
|
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|
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java.awt.Rectangle clipRect = this.computeClipRect(overlap, this); |
411 |
if (null == clipRect || clipRect.width == 0 || clipRect.height == 0) { |
412 |
return;
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} |
414 |
|
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// Apply the transform that correctly maps the image onto the canvas.
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java.awt.geom.AffineTransform affineTransform = |
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this.computeSourceToDestTransform(clipRect.width, clipRect.height,
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overlap, canvasWidth, canvasHeight, canvas.getSector()); |
419 |
|
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// Trick to apply transform to size value
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Point2D srcSizePoint =
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new Point2D.Double(clipRect.width, clipRect.height); |
423 |
Point2D dstSizePoint = new Point2D.Double(); |
424 |
|
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affineTransform.transform(srcSizePoint, dstSizePoint); |
426 |
|
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int clipWidth =
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(int) Math.ceil((dstSizePoint.getX() >= canvasWidth) ? canvasWidth |
429 |
: dstSizePoint.getX()); |
430 |
int clipHeight =
|
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(int) Math.ceil((dstSizePoint.getY() >= canvasHeight) |
432 |
? canvasHeight : dstSizePoint.getY()); |
433 |
|
434 |
if (clipWidth <= 0 || clipHeight <= 0) { |
435 |
return;
|
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} |
437 |
|
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BufferedImage image =
|
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new BufferedImage(clipWidth, clipHeight, |
440 |
BufferedImage.TYPE_INT_ARGB);
|
441 |
|
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viewPort.setImageSize(new Dimension(clipWidth, clipHeight)); |
443 |
viewPort.refreshExtent(); |
444 |
|
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try {
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layer.draw(image, (Graphics2D) image.getGraphics(), viewPort,
|
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mapControl3D.getCancellable(), getScale(viewPort)); |
448 |
|
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if (layer instanceof FLyrVect && layer instanceof ILabelable) { |
450 |
|
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ILabelable labelable = (ILabelable) layer; |
452 |
|
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if (labelable.isLabeled()
|
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&& labelable.getLabelingStrategy() != null
|
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&& labelable.getLabelingStrategy().shouldDrawLabels( |
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getScale(viewPort))) { |
457 |
|
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labelable.drawLabels(image, |
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(Graphics2D) image.getGraphics(), viewPort,
|
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mapControl3D.getCancellable(), getScale(viewPort), |
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mapControl3D.getMapContext().getViewPort().getDPI()); |
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} |
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} |
464 |
|
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} catch (ReadException e) {
|
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LOG.warn("Can't draw required zone of layer {}, can't read legend",
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layer.getName()); |
468 |
return;
|
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} finally {
|
470 |
if (mapControl3D.getCancellable().isCanceled()) {
|
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return;
|
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} |
473 |
} |
474 |
BufferedImageRaster bufferedImageRaster = |
475 |
new BufferedImageRaster(overlap, image);
|
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bufferedImageRaster.drawOnTo(canvas); |
477 |
|
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} |
479 |
|
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private Point2D convert(ICoordTrans ct, Point2D srcPoint) { |
481 |
if (ct == null) { |
482 |
return srcPoint;
|
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} |
484 |
return ct.convert(srcPoint, null); |
485 |
} |
486 |
|
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private java.awt.geom.AffineTransform computeSourceToDestTransform(
|
488 |
int sourceWidth, int sourceHeight, Sector sourceSector, int destWidth, |
489 |
int destHeight, Sector destSector) {
|
490 |
// Compute the the transform from source to destination coordinates. In
|
491 |
// this computation a pixel is assumed
|
492 |
// to cover a finite area.
|
493 |
|
494 |
double ty =
|
495 |
destHeight |
496 |
* -(sourceSector.getMaxLatitude().degrees - destSector |
497 |
.getMaxLatitude().degrees) |
498 |
/ destSector.getDeltaLatDegrees(); |
499 |
double tx =
|
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destWidth |
501 |
* (sourceSector.getMinLongitude().degrees - destSector |
502 |
.getMinLongitude().degrees) |
503 |
/ destSector.getDeltaLonDegrees(); |
504 |
|
505 |
double sy =
|
506 |
((double) destHeight / (double) sourceHeight) |
507 |
* (sourceSector.getDeltaLatDegrees() / destSector |
508 |
.getDeltaLatDegrees()); |
509 |
double sx =
|
510 |
((double) destWidth / (double) sourceWidth) |
511 |
* (sourceSector.getDeltaLonDegrees() / destSector |
512 |
.getDeltaLonDegrees()); |
513 |
|
514 |
java.awt.geom.AffineTransform transform = |
515 |
new java.awt.geom.AffineTransform();
|
516 |
transform.translate(tx, ty); |
517 |
transform.scale(sx, sy); |
518 |
return transform;
|
519 |
} |
520 |
|
521 |
private double getScale(ViewPort viewPort) { |
522 |
|
523 |
double dpi = viewPort.getDPI();
|
524 |
IProjection proj = viewPort.getProjection(); |
525 |
|
526 |
if (viewPort.getImageSize() == null) { |
527 |
return -1; |
528 |
} |
529 |
|
530 |
if (viewPort.getAdjustedEnvelope() == null) { |
531 |
return 0; |
532 |
} |
533 |
double[] trans2Meter = MapContext.getDistanceTrans2Meter(); |
534 |
int mUnits = viewPort.getMapUnits();
|
535 |
|
536 |
if (proj == null) { |
537 |
double w = ((viewPort.getImageSize().width / dpi) * 0.0254); |
538 |
return (long) (viewPort.getAdjustedEnvelope().getLength(0) / w * trans2Meter[mUnits]); |
539 |
} |
540 |
|
541 |
return Math.round(proj.getScale(viewPort.getAdjustedEnvelope() |
542 |
.getMinimum(0) * trans2Meter[mUnits], viewPort
|
543 |
.getAdjustedEnvelope().getMaximum(0) * trans2Meter[mUnits],
|
544 |
viewPort.getImageSize().width, dpi)); |
545 |
} |
546 |
|
547 |
private Rectangle computeClipRect(Sector clipSector, |
548 |
DataRaster clippedRaster) { |
549 |
|
550 |
AffineTransform geographicToRaster =
|
551 |
this.computeGeographicToRasterTransform(clippedRaster.getWidth(),
|
552 |
clippedRaster.getHeight(), clippedRaster.getSector()); |
553 |
|
554 |
java.awt.geom.Point2D geoPoint = new java.awt.geom.Point2D.Double();
|
555 |
java.awt.geom.Point2D ul = new java.awt.geom.Point2D.Double();
|
556 |
java.awt.geom.Point2D lr = new java.awt.geom.Point2D.Double();
|
557 |
|
558 |
geoPoint.setLocation(clipSector.getMinLongitude().degrees, |
559 |
clipSector.getMaxLatitude().degrees); |
560 |
geographicToRaster.transform(geoPoint, ul); |
561 |
|
562 |
geoPoint.setLocation(clipSector.getMaxLongitude().degrees, |
563 |
clipSector.getMinLatitude().degrees); |
564 |
geographicToRaster.transform(geoPoint, lr); |
565 |
|
566 |
int x = (int) Math.floor(ul.getX()); |
567 |
int y = (int) Math.floor(ul.getY()); |
568 |
int width = (int) Math.ceil(lr.getX() - ul.getX()); |
569 |
int height = (int) Math.ceil(lr.getY() - ul.getY()); |
570 |
|
571 |
return new Rectangle(x, y, width, height); |
572 |
} |
573 |
|
574 |
private java.awt.geom.AffineTransform computeGeographicToRasterTransform(
|
575 |
int width, int height, Sector sector) { |
576 |
// Compute the the transform from geographic to raster coordinates. In
|
577 |
// this computation a pixel is assumed
|
578 |
// to cover a finite area.
|
579 |
|
580 |
double ty = -sector.getMaxLatitude().degrees;
|
581 |
double tx = -sector.getMinLongitude().degrees;
|
582 |
|
583 |
double sy = -(height / sector.getDeltaLatDegrees());
|
584 |
double sx = (width / sector.getDeltaLonDegrees());
|
585 |
|
586 |
java.awt.geom.AffineTransform transform = |
587 |
new java.awt.geom.AffineTransform();
|
588 |
transform.scale(sx, sy); |
589 |
transform.translate(tx, ty); |
590 |
return transform;
|
591 |
} |
592 |
|
593 |
public DataRaster getSubRaster(AVList params) {
|
594 |
int width = (Integer) params.getValue(AVKey.WIDTH); |
595 |
int height = (Integer) params.getValue(AVKey.HEIGHT); |
596 |
Sector sector = (Sector) params.getValue(AVKey.SECTOR); |
597 |
|
598 |
return this.getSubRaster(width, height, sector, params); |
599 |
} |
600 |
|
601 |
public DataRaster getSubRaster(int width, int height, Sector sector, |
602 |
AVList params) { |
603 |
|
604 |
params.setValue(AVKey.WIDTH, width); |
605 |
params.setValue(AVKey.HEIGHT, height); |
606 |
params.setValue(AVKey.SECTOR, sector); |
607 |
|
608 |
GvSIGLayerDataRaster subRaster = |
609 |
new GvSIGLayerDataRaster(mapControl3D, layer, params);
|
610 |
return subRaster;
|
611 |
} |
612 |
} |