gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / util / DefaultRasterUtils.java @ 4436
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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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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*/
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package org.gvsig.raster.util; |
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import java.awt.Dimension; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.NoninvertibleTransformException; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.io.IOException; |
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import java.util.List; |
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import org.gvsig.fmap.dal.coverage.RasterLibrary; |
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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.BufferHistogram; |
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import org.gvsig.fmap.dal.coverage.datastruct.Extent; |
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import org.gvsig.fmap.dal.coverage.store.RasterDataStore; |
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import org.gvsig.fmap.dal.coverage.util.RasterUtils; |
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import org.gvsig.raster.impl.datastruct.BufferHistogramImpl; |
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import org.gvsig.raster.impl.datastruct.ExtentImpl; |
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import org.gvsig.raster.impl.store.rmf.RmfBlocksManager; |
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import org.gvsig.raster.impl.store.serializer.GeoInfoRmfSerializer; |
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import org.gvsig.raster.roi.ROI; |
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/**
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* Raster utilities without gvSIG dependencies
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class DefaultRasterUtils implements RasterUtils { |
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public static final int MAX_BYTE_BIT_VALUE = 255; |
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public static final int MAX_SHORT_BIT_VALUE = 65535; |
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public boolean loadInMemory(RasterDataStore datasource) { |
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return (datasource.getFileSize() < (RasterLibrary.cacheSize * 1048576)); |
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} |
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public boolean isBufferTooBig(double[] coords, int bands) { |
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int w = (int)Math.abs(coords[2] - coords[0]); |
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int h = (int)Math.abs(coords[3] - coords[1]); |
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long windowSize = w * h * bands;
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return (windowSize > (RasterLibrary.cacheSize * 1048576)); |
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} |
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public boolean isBufferTooBig(double[] coords, double resolution, int bands) { |
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double wPx = (coords[0] - coords[2]) / resolution; |
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double hPx = (coords[1] - coords[3]) / resolution; |
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return isBufferTooBig(new double[]{0, 0, wPx, hPx}, bands); |
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} |
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|
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// ---------------------------------------------------------------
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// TIPOS DE DATOS
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public int getRasterBufTypeFromMrSIDType(int mrsidType){ |
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switch (mrsidType) {
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case 0: return Buffer.TYPE_UNDEFINED;// INVALID |
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case 1:// UINT8 |
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case 2: return Buffer.TYPE_BYTE;// SINT8 |
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case 3:// UINT16 |
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case 4: return Buffer.TYPE_SHORT;// SINT16 |
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case 5:// UINT32 |
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case 6: return Buffer.TYPE_INT;// SINT32 |
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case 7: return Buffer.TYPE_FLOAT;// FLOAT32 |
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case 8: return Buffer.TYPE_DOUBLE;// FLOAT64 |
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} |
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return Buffer.TYPE_UNDEFINED; |
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} |
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public int getBytesFromRasterBufType(int rasterBufType) { |
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switch (rasterBufType) {
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case Buffer.TYPE_BYTE: return 1; |
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case Buffer.TYPE_USHORT: |
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case Buffer.TYPE_SHORT: return 2; |
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case Buffer.TYPE_INT: |
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case Buffer.TYPE_FLOAT: |
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case Buffer.TYPE_IMAGE: return 4; |
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case Buffer.TYPE_DOUBLE: return 8; |
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} |
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return 0; // TYPE_UNDEFINED |
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} |
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public long getBytesFromRaster(int width, int height, |
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int rasterType, int nBands) { |
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int typeSize = getBytesFromRasterBufType(rasterType);
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return (long) width * (long) height * nBands * typeSize; |
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} |
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public String typesToString(int type) { |
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switch (type) {
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case Buffer.TYPE_IMAGE: |
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return new String("Image"); |
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case Buffer.TYPE_BYTE: |
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return new String("Byte"); |
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case Buffer.TYPE_DOUBLE: |
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return new String("Double"); |
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case Buffer.TYPE_FLOAT: |
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return new String("Float"); |
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case Buffer.TYPE_INT: |
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return new String("Integer"); |
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case Buffer.TYPE_USHORT: |
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case Buffer.TYPE_SHORT: |
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return new String("Short"); |
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case Buffer.TYPE_UNDEFINED: |
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return new String("Undefined"); |
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} |
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return null; |
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} |
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public String parserGdalProj(String proj) { |
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if (proj == null) |
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return ""; |
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String[] list = proj.split(","); |
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int level = 0; |
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for (int i = 0; i < list.length; i++) { |
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if (list[i].indexOf("[") >= 0) { |
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level++; |
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String spaces = ""; |
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for (int j = 0; j < level; j++) |
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spaces += " ";
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list[i] = spaces + list[i]; |
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} |
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if (list[i].indexOf("]]") >= 0) |
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level = level - 2;
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else
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if (list[i].indexOf("]") >= 0) |
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level--; |
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} |
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StringBuffer str = new StringBuffer(); |
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for (int i = 0; i < list.length; i++) |
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if (i < list.length)
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if (i + 1 < list.length && list[i + 1].indexOf("[") >= 0) |
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str.append(list[i] + ",<BR>");
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else
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str.append(list[i] + ",");
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return str.toString();
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} |
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// ---------------------------------------------------------------
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// CONVERSI?N DE COORDENADAS
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public Rectangle2D getPxRectFromMapRect(Rectangle2D extent, double widthPx, double heightPx, Rectangle2D window) { |
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double widthWC = extent.getWidth();
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double heightWC = extent.getHeight();
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double wWindowWC = Math.abs(window.getMaxX() - window.getMinX()); |
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double hWindowWC = Math.abs(window.getMaxY() - window.getMinY()); |
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double wWindowPx = ((wWindowWC * widthPx) / widthWC);
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double hWindowPx = ((hWindowWC * heightPx) / heightWC);
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double initDistanceX = Math.abs(window.getMinX() - extent.getMinX()); |
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double initDistanceY = Math.abs(window.getMaxY() - extent.getMaxY()); |
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double initPxX = ((initDistanceX * widthPx) / widthWC);
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double initPxY = ((initDistanceY * heightPx) / heightWC);
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Rectangle2D pxRec = new Rectangle2D.Double(initPxX, initPxY, wWindowPx, hWindowPx); |
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return pxRec;
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} |
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public Rectangle2D getMapRectFromPxRect(Rectangle2D extent, double widthPx, double heightPx, Rectangle2D pxWindow) { |
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double wWindowWC = ((pxWindow.getWidth() * extent.getWidth()) / widthPx);
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double hWindowWC = ((pxWindow.getHeight() * extent.getHeight()) / heightPx);
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double initWCX = extent.getMinX() + ((pxWindow.getMinX() * extent.getWidth()) / widthPx);
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double initWCY = extent.getMaxY() - ((pxWindow.getMinY() * extent.getHeight()) / heightPx);
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Rectangle2D mapRec = new Rectangle2D.Double(initWCX, initWCY - hWindowWC, wWindowWC, hWindowWC); |
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return mapRec;
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} |
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public Point2D worldPointToRaster(Point2D p, Extent ext, int pxWidth, int pxHeight) { |
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double x = p.getX() - ext.getMin().getX();
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double y = p.getY() - ext.getMin().getY();
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int pxX = (int) ((x * pxWidth) / ext.width()); |
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int pxY = (int) ((y * pxHeight) / ext.height()); |
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return new Point2D.Double(pxX, pxY); |
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} |
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public boolean intersects(Extent e1, Extent e2, AffineTransform at) throws NoninvertibleTransformException { |
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Point2D ulPxE1 = new Point2D.Double(); |
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Point2D lrPxE1 = new Point2D.Double(); |
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Point2D ulPxE2 = new Point2D.Double(); |
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Point2D lrPxE2 = new Point2D.Double(); |
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at.inverseTransform(new Point2D.Double(e1.getULX(), e1.getULY()), ulPxE1); |
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at.inverseTransform(new Point2D.Double(e1.getLRX(), e1.getLRY()), lrPxE1); |
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at.inverseTransform(new Point2D.Double(e2.getULX(), e2.getULY()), ulPxE2); |
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at.inverseTransform(new Point2D.Double(e2.getLRX(), e2.getLRY()), lrPxE2); |
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if (((ulPxE1.getX() <= lrPxE2.getX()) && (lrPxE1.getX() >= lrPxE2.getX()) ||
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(ulPxE1.getX() <= ulPxE2.getX()) && (lrPxE1.getX() >= ulPxE2.getX()) || |
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(ulPxE1.getX() >= ulPxE2.getX()) && (lrPxE1.getX() <= lrPxE2.getX())) && |
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((ulPxE1.getY() <= lrPxE2.getY()) && (lrPxE1.getY() >= lrPxE2.getY()) || |
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(ulPxE1.getY() <= ulPxE2.getY()) && (lrPxE1.getY() >= ulPxE2.getY()) || |
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(ulPxE1.getY() >= ulPxE2.getY()) && (lrPxE1.getY() <= lrPxE2.getY()))) |
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return true; |
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return false; |
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} |
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public Extent intersection(Extent e1, Extent e2) {
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if( (e1.getMin().getX() > e2.getMax().getX()) ||
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(e1.getMax().getX() < e2.getMin().getX()) || |
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(e1.getMin().getY() > e2.getMax().getY()) || |
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(e1.getMax().getY() < e2.getMin().getY())) {
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return null; |
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} |
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double ulx = Math.max(e1.getULX(), e2.getULX()); |
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double uly = Math.min(e1.getULY(), e2.getULY()); |
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double lrx = Math.min(e1.getLRX(), e2.getLRX()); |
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double lry = Math.max(e1.getLRY(), e2.getLRY()); |
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return new ExtentImpl(ulx, uly, lrx, lry); |
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} |
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public boolean isInside(Point2D p1, Extent e1, AffineTransform at) { |
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// Convertimos los puntos a coordenadas pixel con la matriz de
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// transformaci?n
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Point2D p1Px = new Point2D.Double(); |
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Point2D ulPx = new Point2D.Double(); |
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Point2D lrPx = new Point2D.Double(); |
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try {
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at.inverseTransform(p1, p1Px); |
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at.inverseTransform(new Point2D.Double(e1.getULX(), e1.getULY()), ulPx); |
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at.inverseTransform(new Point2D.Double(e1.getLRX(), e1.getLRY()), lrPx); |
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} catch (NoninvertibleTransformException e) { |
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return false; |
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} |
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// Comprobamos si el punto est? dentro
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return ((p1Px.getX() >= ulPx.getX()) && (p1Px.getX() <= lrPx.getX()) &&
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(p1Px.getY() >= ulPx.getY()) && (p1Px.getY() <= lrPx.getY())); |
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} |
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public boolean isInside(Extent e1, Extent e2) { |
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return ((e1.getMin().getX() >= e2.getMin().getX()) &&
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(e1.getMin().getY() >= e2.getMin().getY()) && |
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(e1.getMax().getX() <= e2.getMax().getX()) && |
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(e1.getMax().getY() <= e2.getMax().getY())); |
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} |
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public boolean isInside(Point2D p1, Extent e1) { |
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return ((p1.getX() >= e1.getMin().getX()) && (p1.getX() <= e1.getMax().getX()) && (p1.getY() >= e1.getMin().getY())) && (p1.getY() <= e1.getMax().getY());
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} |
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public boolean isOutside(Extent e1, Extent ref) { |
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return ((e1.getMin().getX() > ref.getMax().getX()) || (e1.getMin().getY() > ref.getMax().getY()) ||
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(e1.getMax().getX() < ref.getMin().getX()) || (e1.getMax().getY() < ref.getMin().getY())); |
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} |
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public boolean compareExtents(Extent e1, Extent e2) { |
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return ((e1.getMin().getX() == e2.getMin().getX()) && (e1.getMin().getY() == e2.getMin().getY()) &&
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(e1.getMax().getX() == e2.getMax().getX())) && (e1.getMax().getY() == e2.getMax().getY()); |
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} |
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public double[] cornersToWorldFile(Point2D[] esq, Dimension size) { |
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double a = 0, b = 0, c = 0, d = 0, e = 0, f = 0; |
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double x1 = esq[0].getX(), y1 = esq[0].getY(); |
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double x2 = esq[1].getX(), y2 = esq[1].getY(); |
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double x3 = esq[2].getX(), y3 = esq[2].getY(); |
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double x4 = esq[3].getX(), y4 = esq[3].getY(); |
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// A: X-scale
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a = Math.abs(Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)) / size.getWidth()); |
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// E: negative Y-scale
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e = -Math.abs(Math.sqrt((x1 - x4) * (x1 - x4) + (y1 - y4) * (y1 - y4)) / size.getHeight()); |
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// C, F: upper-left coordinates
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c = x1; |
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f = y1; |
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// B & D: rotation parameters
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b = (a * size.getWidth() + c - x3) / size.getHeight() * -1;
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d = (e * size.getHeight() + f - y3) / size.getWidth() * -1;
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double[] wf = { a, d, b, e, c, f }; |
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return wf;
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} |
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public void adjustToPixelSize(Point2D[] points, Point2D dim) { |
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for (int i = 0; i < points.length; i++) { |
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if (points[i].getX() < 0) |
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points[i].setLocation(0, points[i].getY());
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if (((int)points[i].getX()) > (dim.getX() - 1)) |
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points[i].setLocation(dim.getX() - 1, points[i].getY());
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if (points[i].getY() < 0) |
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points[i].setLocation(points[i].getX(), 0);
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if (((int)points[i].getY()) > (dim.getY() - 1)) |
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points[i].setLocation(points[i].getX(), dim.getY() - 1);
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} |
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} |
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// ---------------------------------------------------------------
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// VARIOS
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/**
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* Gets the exception trace
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* @param e
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* @return the exception trace
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*/
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public String getTrace(Exception e) { |
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Throwable throwable = e;
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String r = ""; |
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StackTraceElement[] elemList = throwable.getStackTrace(); |
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for (int i = 0; i < elemList.length; i++) { |
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r += " !!!-" + elemList[i].toString() + "\n"; |
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} |
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while(throwable.getCause() != null) { |
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elemList = throwable.getCause().getStackTrace(); |
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for (int i = 0; i < elemList.length; i++) { |
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r += " !!!-" + elemList[i].toString() + "\n"; |
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} |
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throwable = throwable.getCause(); |
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} |
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return r;
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} |
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|
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public String formatTime(long time) { |
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int days = 0; |
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int hours = 0; |
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int minuts = 0; |
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int seconds = (int) (time / 1000D); |
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if (seconds >= 60) { |
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minuts = (seconds / 60);
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seconds = (seconds - (minuts * 60));
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if (minuts >= 60) { |
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hours = (minuts / 60);
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minuts = (minuts - (hours * 60));
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if (hours >= 24) { |
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days = (hours / 24);
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hours = (hours - (days * 24));
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} |
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} |
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} |
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StringBuffer s = new StringBuffer(); |
| 362 |
if (days != 0) |
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s.append(days + " d ");
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if (hours != 0) |
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s.append(hours + " h ");
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if (minuts != 0) |
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s.append(minuts + " min ");
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if (seconds != 0) |
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s.append(seconds + " s ");
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if (s.length() == 0) |
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s.append(" < 1s");
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return s.toString();
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} |
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|
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public String[] getCoord(double minx, double miny, double maxx, double maxy, int dec) { |
| 376 |
String[] coordPx = new String[4]; |
| 377 |
int indexPoint = String.valueOf(minx).indexOf('.'); |
| 378 |
try {
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coordPx[0] = String.valueOf(minx).substring(0, indexPoint + dec); |
| 380 |
} catch (StringIndexOutOfBoundsException ex) { |
| 381 |
coordPx[0] = String.valueOf(minx); |
| 382 |
} |
| 383 |
indexPoint = String.valueOf(miny).indexOf('.'); |
| 384 |
try {
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| 385 |
coordPx[1] = String.valueOf(miny).substring(0, indexPoint + dec); |
| 386 |
} catch (StringIndexOutOfBoundsException ex) { |
| 387 |
coordPx[1] = String.valueOf(miny); |
| 388 |
} |
| 389 |
indexPoint = String.valueOf(maxx).indexOf('.'); |
| 390 |
try {
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| 391 |
coordPx[2] = String.valueOf(maxx).substring(0, indexPoint + dec); |
| 392 |
} catch (StringIndexOutOfBoundsException ex) { |
| 393 |
coordPx[2] = String.valueOf(maxx); |
| 394 |
} |
| 395 |
indexPoint = String.valueOf(maxy).indexOf('.'); |
| 396 |
try {
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coordPx[3] = String.valueOf(maxy).substring(0, indexPoint + dec); |
| 398 |
} catch (StringIndexOutOfBoundsException ex) { |
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coordPx[3] = String.valueOf(maxy); |
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} |
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return coordPx;
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} |
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|
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public Extent calculateAdjustedView(Extent extToAdj, Extent imgExt) {
|
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double vx = extToAdj.minX();
|
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double vy = extToAdj.minY();
|
| 407 |
double vx2 = extToAdj.maxX();
|
| 408 |
double vy2 = extToAdj.maxY();
|
| 409 |
|
| 410 |
if (extToAdj.minX() < imgExt.minX())
|
| 411 |
vx = imgExt.minX(); |
| 412 |
|
| 413 |
if (extToAdj.minY() < imgExt.minY())
|
| 414 |
vy = imgExt.minY(); |
| 415 |
|
| 416 |
if (extToAdj.maxX() > imgExt.maxX())
|
| 417 |
vx2 = imgExt.maxX(); |
| 418 |
|
| 419 |
if (extToAdj.maxY() > imgExt.maxY())
|
| 420 |
vy2 = imgExt.maxY(); |
| 421 |
|
| 422 |
return new ExtentImpl(vx, vy, vx2, vy2); |
| 423 |
} |
| 424 |
|
| 425 |
public Extent calculateAdjustedView(Extent extToAdj, AffineTransform at, double w, double h) { |
| 426 |
// Obtenemos los cuatro puntos de la petici?n de origen
|
| 427 |
Point2D src_ul = new Point2D.Double(extToAdj.getULX(), extToAdj.getULY()); |
| 428 |
Point2D src_lr = new Point2D.Double(extToAdj.getLRX(), extToAdj.getLRY()); |
| 429 |
Point2D ul = new Point2D.Double(); |
| 430 |
Point2D lr = new Point2D.Double(); |
| 431 |
|
| 432 |
// Los convertimos a coordenadas pixel con la matriz de transformaci?n
|
| 433 |
try {
|
| 434 |
at.inverseTransform(src_ul, ul); |
| 435 |
at.inverseTransform(src_lr, lr); |
| 436 |
} catch (NoninvertibleTransformException e) { |
| 437 |
return extToAdj;
|
| 438 |
} |
| 439 |
|
| 440 |
// Ajustamos a la dimensi?n del raster en pixeles
|
| 441 |
if (ul.getX() < 0) |
| 442 |
ul.setLocation(0, ul.getY());
|
| 443 |
if (ul.getX() >= w)
|
| 444 |
ul.setLocation(w, ul.getY()); |
| 445 |
if (ul.getY() < 0) |
| 446 |
ul.setLocation(ul.getX(), 0);
|
| 447 |
if (ul.getY() >= h)
|
| 448 |
ul.setLocation(ul.getX(), h); |
| 449 |
|
| 450 |
if (lr.getX() < 0) |
| 451 |
lr.setLocation(0, lr.getY());
|
| 452 |
if (lr.getX() >= w)
|
| 453 |
lr.setLocation(w, lr.getY()); |
| 454 |
if (lr.getY() < 0) |
| 455 |
lr.setLocation(lr.getX(), 0);
|
| 456 |
if (lr.getY() >= h)
|
| 457 |
lr.setLocation(lr.getX(), h); |
| 458 |
|
| 459 |
// Lo convertimos a coordenadas reales nuevamente
|
| 460 |
Point2D real_ul = new Point2D.Double(); |
| 461 |
Point2D real_lr = new Point2D.Double(); |
| 462 |
at.transform(ul, real_ul); |
| 463 |
at.transform(lr, real_lr); |
| 464 |
return new ExtentImpl(real_ul, real_lr); |
| 465 |
} |
| 466 |
|
| 467 |
public void saveGeoInfo(String outRmf, AffineTransform at, Point2D dim) throws IOException { |
| 468 |
RmfBlocksManager manager = new RmfBlocksManager(outRmf + ".rmf"); |
| 469 |
GeoInfoRmfSerializer ser3 = new GeoInfoRmfSerializer(at, dim);
|
| 470 |
manager.addClient(ser3); |
| 471 |
manager.write(); |
| 472 |
} |
| 473 |
|
| 474 |
/**
|
| 475 |
* Obtiene el extent m?ximo de todas las ROIs pasadas por par?metro.
|
| 476 |
* @param rois Lista de ROIs para calcular la extensi?n m?xima que ocupan
|
| 477 |
* @return Entent m?ximo
|
| 478 |
*/
|
| 479 |
public Extent getROIsMaximunExtent(List<ROI> rois) { |
| 480 |
double minx = 0, miny = 0, maxx = 0, maxy = 0; |
| 481 |
for (int i = 0; i < rois.size(); i++) { |
| 482 |
Extent ext = rois.get(i).getROIExtent(); |
| 483 |
if(i == 0) { |
| 484 |
minx = ext.minX(); |
| 485 |
miny = ext.minY(); |
| 486 |
maxx = ext.maxX(); |
| 487 |
maxy = ext.maxY(); |
| 488 |
} else {
|
| 489 |
if(ext.minX() < minx)
|
| 490 |
minx = ext.minX(); |
| 491 |
if(ext.minY() < miny)
|
| 492 |
miny = ext.minY(); |
| 493 |
if(ext.maxX() > maxx)
|
| 494 |
maxx = ext.maxX(); |
| 495 |
if(ext.maxY() > maxy)
|
| 496 |
maxy = ext.maxY(); |
| 497 |
} |
| 498 |
} |
| 499 |
return RasterLocator.getManager().getDataStructFactory().createExtent(minx, miny, maxx, maxy);
|
| 500 |
} |
| 501 |
|
| 502 |
|
| 503 |
/**
|
| 504 |
* Convierte un histograma al rango de valores de RGB, en pocas palabras
|
| 505 |
* aplica una operacion 0xff a cada pixel para quitar los numeros negativos
|
| 506 |
* y desplazarlos a su rango visual.
|
| 507 |
* @param histogram
|
| 508 |
*/
|
| 509 |
public BufferHistogram convertHistogramToRGB(BufferHistogram histogram) {
|
| 510 |
if (histogram == null || !(histogram instanceof BufferHistogramImpl)) |
| 511 |
return null; |
| 512 |
|
| 513 |
BufferHistogramImpl histImp = (BufferHistogramImpl)histogram; |
| 514 |
|
| 515 |
if (histImp.getDataType() != Buffer.TYPE_BYTE) |
| 516 |
return histogram;
|
| 517 |
|
| 518 |
double min = histImp.getMin(0); |
| 519 |
double max = histImp.getMax(0); |
| 520 |
|
| 521 |
long table2[][] = histImp.getTable(); |
| 522 |
|
| 523 |
long newTable[][] = new long[table2.length][table2[0].length]; |
| 524 |
|
| 525 |
// Ponemos a cero todos los valores
|
| 526 |
for (int i = 0; i < table2.length; i++) |
| 527 |
for (int j = 0; j < table2[i].length; j++) |
| 528 |
newTable[i][j] = 0;
|
| 529 |
|
| 530 |
// Sumamos en la posicion calculada nueva el valor correspondiente
|
| 531 |
for (int i = 0; i < table2.length; i++) { |
| 532 |
for (int j = 0; j < table2[i].length; j++) { |
| 533 |
double val = ((j * (max - min)) / 255) + min; |
| 534 |
int pos = ((int) val) & 0xff; |
| 535 |
if (pos < 0) |
| 536 |
pos = 0;
|
| 537 |
if (pos >= newTable[i].length)
|
| 538 |
pos = newTable[i].length - 1;
|
| 539 |
|
| 540 |
newTable[i][pos] += table2[i][j]; |
| 541 |
} |
| 542 |
} |
| 543 |
|
| 544 |
double mins[] = new double[histImp.getNumBands()]; |
| 545 |
double maxs[] = new double[histImp.getNumBands()]; |
| 546 |
|
| 547 |
for (int i = 0; i < mins.length; i++) { |
| 548 |
mins[i] = 0;
|
| 549 |
maxs[i] = 255;
|
| 550 |
} |
| 551 |
|
| 552 |
BufferHistogramImpl histogramNew = new BufferHistogramImpl(histImp.getNumBands(), mins, maxs, Buffer.TYPE_BYTE); |
| 553 |
|
| 554 |
histogramNew.setTable(newTable); |
| 555 |
|
| 556 |
return histogramNew;
|
| 557 |
} |
| 558 |
|
| 559 |
public void copyToBuffer(Buffer bufResult, Extent tileExtent, |
| 560 |
Buffer buf, Extent ex, double rel, boolean hasAlphaBand) { |
| 561 |
double distx = Math.abs(ex.getULX() - tileExtent.getULX()); |
| 562 |
double disty = Math.abs(ex.getULY() - tileExtent.getULY()); |
| 563 |
int distpxx = (int)Math.round(distx / rel); |
| 564 |
int distpxy = (int)Math.round(disty / rel); |
| 565 |
int lastBandNumber = bufResult.getBandCount() - 1; |
| 566 |
|
| 567 |
//Para BYTE la ?ltima banda es de transparencia por lo que en esa banda en las zonas donde hay imagen
|
| 568 |
//hay que ponerle el valor 255 para que aparezcan visibles
|
| 569 |
if(bufResult.getDataType() == Buffer.TYPE_BYTE) { |
| 570 |
for (int iBand = 0; iBand < lastBandNumber; iBand++) { |
| 571 |
if(iBand == 0) { |
| 572 |
for (int i = distpxy; (i < bufResult.getHeight() && (i - distpxy) < buf.getHeight()); i++) { |
| 573 |
for (int j = distpxx; (j < bufResult.getWidth() && (j - distpxx) < buf.getWidth()); j++) { |
| 574 |
bufResult.setElem(i, j, iBand, buf.getElemByte(i - distpxy, j - distpxx, iBand)); |
| 575 |
bufResult.setElem(i, j, lastBandNumber, (byte)255); |
| 576 |
} |
| 577 |
} |
| 578 |
} else {
|
| 579 |
for (int i = distpxy; (i < bufResult.getHeight() && (i - distpxy) < buf.getHeight()); i++) { |
| 580 |
for (int j = distpxx; (j < bufResult.getWidth() && (j - distpxx) < buf.getWidth()); j++) { |
| 581 |
bufResult.setElem(i, j, iBand, buf.getElemByte(i - distpxy, j - distpxx, iBand)); |
| 582 |
} |
| 583 |
} |
| 584 |
} |
| 585 |
} |
| 586 |
//Si la imagen original tenia banda de transparencia hay que copiar los valores de transparencia que no son cero
|
| 587 |
if(hasAlphaBand) {
|
| 588 |
for (int i = distpxy; (i < bufResult.getHeight() && (i - distpxy) < buf.getHeight()); i++) { |
| 589 |
for (int j = distpxx; (j < bufResult.getWidth() && (j - distpxx) < buf.getWidth()); j++) { |
| 590 |
byte value = buf.getElemByte(i - distpxy, j - distpxx, lastBandNumber);
|
| 591 |
if(value != 255) |
| 592 |
bufResult.setElem(i, j, lastBandNumber, value); |
| 593 |
} |
| 594 |
} |
| 595 |
} |
| 596 |
} |
| 597 |
|
| 598 |
//En el resto de casos no se usa banda de transparencia sino que las zonas del tile fuera de la imagen
|
| 599 |
//se inicializaron previamente a NoData
|
| 600 |
|
| 601 |
if(bufResult.getDataType() == Buffer.TYPE_SHORT) { |
| 602 |
for (int iBand = 0; iBand < buf.getBandCount(); iBand++) { |
| 603 |
for (int i = distpxy; (i < bufResult.getHeight() && (i - distpxy) < buf.getHeight()); i++) { |
| 604 |
for (int j = distpxx; (j < bufResult.getWidth() && (j - distpxx) < buf.getWidth()); j++) { |
| 605 |
bufResult.setElem(i, j, iBand, buf.getElemShort(i - distpxy, j - distpxx, iBand)); |
| 606 |
} |
| 607 |
} |
| 608 |
} |
| 609 |
} |
| 610 |
if(bufResult.getDataType() == Buffer.TYPE_INT) { |
| 611 |
for (int iBand = 0; iBand < buf.getBandCount(); iBand++) { |
| 612 |
for (int i = distpxy; (i < bufResult.getHeight() && (i - distpxy) < buf.getHeight()); i++) { |
| 613 |
for (int j = distpxx; (j < bufResult.getWidth() && (j - distpxx) < buf.getWidth()); j++) { |
| 614 |
bufResult.setElem(i, j, iBand, buf.getElemInt(i - distpxy, j - distpxx, iBand)); |
| 615 |
} |
| 616 |
} |
| 617 |
} |
| 618 |
} |
| 619 |
if(bufResult.getDataType() == Buffer.TYPE_FLOAT) { |
| 620 |
for (int iBand = 0; iBand < buf.getBandCount(); iBand++) { |
| 621 |
for (int i = distpxy; (i < bufResult.getHeight() && (i - distpxy) < buf.getHeight()); i++) { |
| 622 |
for (int j = distpxx; (j < bufResult.getWidth() && (j - distpxx) < buf.getWidth()); j++) { |
| 623 |
bufResult.setElem(i, j, iBand, buf.getElemFloat(i - distpxy, j - distpxx, iBand)); |
| 624 |
} |
| 625 |
} |
| 626 |
} |
| 627 |
} |
| 628 |
if(bufResult.getDataType() == Buffer.TYPE_DOUBLE) { |
| 629 |
for (int iBand = 0; iBand < buf.getBandCount(); iBand++) { |
| 630 |
for (int i = distpxy; (i < bufResult.getHeight() && (i - distpxy) < buf.getHeight()); i++) { |
| 631 |
for (int j = distpxx; (j < bufResult.getWidth() && (j - distpxx) < buf.getWidth()); j++) { |
| 632 |
bufResult.setElem(i, j, iBand, buf.getElemDouble(i - distpxy, j - distpxx, iBand)); |
| 633 |
} |
| 634 |
} |
| 635 |
} |
| 636 |
} |
| 637 |
} |
| 638 |
|
| 639 |
} |