svn-gvsig-desktop / branches / org.gvsig.desktop-2018a / org.gvsig.desktop.compat.cdc / org.gvsig.basicformats / src / main / java / org / gvsig / basicformats / impl / DefaultHDRFile.java @ 43876
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package org.gvsig.basicformats.impl; |
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import java.io.File; |
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import java.io.IOException; |
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import java.nio.ByteOrder; |
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import java.util.List; |
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import org.apache.commons.io.FileUtils; |
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import org.apache.commons.io.FilenameUtils; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.basicformats.HDRFile; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.raster.lib.buffer.api.BufferManager; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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public class DefaultHDRFile implements HDRFile { |
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// http://resources.esri.com/help/9.3/arcgisdesktop/com/gp_toolref/spatial_analyst_tools/esri_ascii_raster_format.htm
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private static final Logger logger = LoggerFactory.getLogger(DefaultHDRFile.class); |
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private File source; |
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private String comments; |
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private int nrows = NONE; |
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private int ncols = NONE; |
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private int nbands = 1; |
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private int nbits = 8; |
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private String pixeltype; |
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private String byteorder_word; |
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private ByteOrder byteorder = ByteOrder.nativeOrder(); |
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private String layout = LAYOUT_BIL; |
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private int skipbytes = 0; |
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private double ulxmax = Double.NaN; |
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private double ulymax = Double.NaN; |
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private double xdim = Double.NaN; |
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private double ydim = Double.NaN; |
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private int bandrowbytes = NONE; |
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private int totalrowbytes = NONE; |
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private int bandgapbytes = 0; |
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private boolean valid = false; |
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private double nodata_value = Double.NaN; |
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// X coordinate of the origin (by center or lower left corner of the cell).
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private double xllcorner = Double.NaN; |
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// Y coordinate of the origin (by center or lower left corner of the cell).
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private double yllcorner = Double.NaN; |
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private int cellsize = NONE; |
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public DefaultHDRFile() {
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this.source = null; |
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} |
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@Override
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public File getFile(File file) { |
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File f = new File(FilenameUtils.removeExtension(file.getAbsolutePath()) + "." + FILE_EXTENSION); |
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return f;
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} |
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@Override
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public File getFile() { |
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return source;
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} |
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@Override
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public void read(File file) throws IOException { |
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File f = this.getFile(file); |
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if (f.exists()) {
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try {
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List<String> lines = FileUtils.readLines(f); |
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if (lines != null) { |
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this.source = f.getAbsoluteFile();
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int lineno = 1; |
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for (String line : lines) { |
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String[] words = StringUtils.split(line.trim().toLowerCase()); |
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try {
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switch (words[0]) { |
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case "nrows": |
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this.nrows = Integer.parseInt(words[1]); |
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break;
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case "ncols": |
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this.ncols = Integer.parseInt(words[1]); |
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break;
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case "nbands": |
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this.nbands = Integer.parseInt(words[1]); |
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break;
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case "nbits": |
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this.nbits = Integer.parseInt(words[1]); |
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break;
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case "pixeltype": |
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this.pixeltype = words[1]; |
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break;
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case "byteorder": |
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this.byteorder_word = words[1]; |
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break;
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case "layout": |
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this.layout = words[1]; |
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break;
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case "skipbytes": |
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this.skipbytes = Integer.parseInt(words[1]); |
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break;
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case "nodata_value": |
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this.nodata_value = Double.parseDouble(words[1]); |
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break;
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case "cellsize": |
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this.cellsize = Integer.parseInt(words[1]); |
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break;
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case "xllcorner": |
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case "xllcenter": |
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this.xllcorner = Double.parseDouble(words[1]); |
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break;
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case "yllcorner": |
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case "yllcenter": |
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this.yllcorner = Double.parseDouble(words[1]); |
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break;
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case "ulxmax": |
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this.ulxmax = Double.parseDouble(words[1]); |
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break;
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case "ulymax": |
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this.ulymax = Double.parseDouble(words[1]); |
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break;
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case "xdim": |
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this.xdim = Double.parseDouble(words[1]); |
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break;
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case "ydim": |
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this.ydim = Double.parseDouble(words[1]); |
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break;
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case "bandrowbytes": |
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this.bandrowbytes = Integer.parseInt(words[1]); |
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break;
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case "totalrowbytes": |
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this.totalrowbytes = Integer.parseInt(words[1]); |
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break;
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case "bandgapbytes": |
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this.bandgapbytes = Integer.parseInt(words[1]); |
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break;
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} |
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} catch (NumberFormatException e) { |
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logger.warn("Can't parse keyword '" + words[0] |
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+ "' (value='" + words[1] |
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+ "', lineno=+" + lineno
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+ ", file=" + f.getAbsoluteFile()
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+ ").", e);
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} |
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lineno++; |
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} |
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this.fixValues();
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} |
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} catch (IOException e) { |
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logger.warn("Couldn't read " + FILE_EXTENSION + " file (" + f.getAbsoluteFile() + ")", e); |
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throw e;
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} catch (Exception e) { |
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String msg = "Couldn't read " + FILE_EXTENSION + " file (" + f.getAbsoluteFile() + ")"; |
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logger.warn(msg, e); |
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throw new IOException(msg, e); |
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} |
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} |
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} |
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private void fixValues() { |
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@SuppressWarnings("LocalVariableHidesMemberVariable") |
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boolean valid = true; |
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if (this.pixeltype != null) { |
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switch (this.pixeltype) { |
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case "signedint": |
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this.nbits = 32; |
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break;
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case "byte_unsigned": |
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this.nbits = 8; |
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break;
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} |
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} |
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switch (this.getNbits()) { |
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case 1: |
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case 4: |
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logger.warn("nbits keyword has a non supported value of " + this.getNbits() + " (" + this.source.getAbsolutePath() + ")."); |
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valid = false;
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break;
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case 8: |
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case 16: |
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case 32: |
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case 64: |
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break;
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default:
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logger.warn("nbits keyword has an invalid value of " + this.getNbits() + " (" + this.source.getAbsolutePath() + ")."); |
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this.nbits = 1; |
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valid = false;
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break;
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} |
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switch (this.getLayout()) { |
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case LAYOUT_BIL:
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case LAYOUT_BIP:
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case LAYOUT_BSQ:
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break;
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default:
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logger.warn("layout keyword has an invalid value of '" + this.getLayout() + "' (" + this.source.getAbsolutePath() + ")."); |
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this.layout = LAYOUT_BIL;
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valid = false;
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break;
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} |
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if( StringUtils.isEmpty(this.byteorder_word) ) { |
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this.byteorder = ByteOrder.nativeOrder(); |
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if( this.byteorder == ByteOrder.BIG_ENDIAN ) { |
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this.byteorder_word = "msbfirst"; |
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} else {
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this.byteorder_word = "lsbfirst"; |
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} |
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} else {
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switch(this.byteorder_word) { |
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case "lsbfirst": |
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case "little_endian": |
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case "littleendian": |
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case "intel": |
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case "i": |
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this.byteorder = ByteOrder.LITTLE_ENDIAN; |
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break;
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case "motorola": |
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case "m": |
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case "msbfirst": |
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case "big_endian": |
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case "bigendian": |
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this.byteorder = ByteOrder.BIG_ENDIAN; |
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break;
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default:
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logger.warn("byteorder keyword has an invalid value of '" + this.byteorder_word + "' (" + this.source.getAbsolutePath() + ")."); |
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this.byteorder = ByteOrder.nativeOrder(); |
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} |
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} |
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if (this.getNrows() == NONE || this.getNcols() == NONE) { |
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logger.warn("nrows/ncols keywords has an invalid value of '" + this.getNrows() + "/" + this.getNcols() + "' (" + this.source.getAbsolutePath() + ")."); |
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valid = false;
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} |
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if (this.getUlymax() == NONE) { |
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this.ulymax = this.getNrows() - 1; |
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} |
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if (this.getBandrowbytes() == NONE) { |
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this.bandrowbytes = (this.getNcols() * this.getNbits()) / 8; |
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} |
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switch (this.getLayout()) { |
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case LAYOUT_BIL:
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if (this.getTotalrowbytes() == NONE) { |
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this.totalrowbytes = this.getNbands() * this.getBandrowbytes(); |
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} |
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this.bandgapbytes = 0; |
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break;
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case LAYOUT_BIP:
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if (this.getTotalrowbytes() == NONE) { |
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this.totalrowbytes = (this.getNcols() * this.getNbands() * this.getNbits()) / 8; |
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} |
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this.bandgapbytes = 0; |
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break;
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case LAYOUT_BSQ:
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if (this.getTotalrowbytes() == NONE) { |
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this.totalrowbytes = 0; |
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} |
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if (this.getBandgapbytes() == NONE) { |
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this.bandgapbytes = 0; |
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} |
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break;
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} |
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this.valid = valid;
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} |
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@Override
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public int getDataType() { |
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if (this.pixeltype != null) { |
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switch (this.pixeltype) { |
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case "signedint": |
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return BufferManager.TYPE_INT;
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case "byte_unsigned": |
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return BufferManager.TYPE_BYTE;
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} |
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} |
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switch (this.getNbits()) { |
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case 1: |
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case 4: |
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default:
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return BufferManager.TYPE_UNDEFINED;
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case 8: |
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return BufferManager.TYPE_BYTE;
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case 16: |
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return BufferManager.TYPE_USHORT;
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case 32: |
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return BufferManager.TYPE_INT;
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case 64: |
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return BufferManager.TYPE_DOUBLE;
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} |
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} |
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@Override
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public void write(File file) throws IOException { |
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File f = this.getFile(file); |
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StringBuilder builder = new StringBuilder(); |
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builder.append("; ").append(this.comments).append("\n"); |
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builder.append("nrows ").append(this.nrows).append("\n"); |
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builder.append("ncols ").append(this.ncols).append("\n"); |
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builder.append("nbands ").append(this.nbands).append("\n"); |
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builder.append("nbits ").append(this.nbits).append("\n"); |
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builder.append("layout ").append(LAYOUT_BSQ).append("\n"); |
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builder.append("byteorder ").append(this.byteorder_word).append("\n"); |
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builder.append("ulxmax ").append(this.ulxmax).append("\n"); |
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builder.append("ulymax ").append(this.ulymax).append("\n"); |
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builder.append("ydim ").append(this.ydim).append("\n"); |
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builder.append("xdim ").append(this.xdim).append("\n"); |
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FileUtils.write(file, builder.toString()); |
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} |
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@Override
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public void setByteOrder(ByteOrder order) { |
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this.byteorder = order;
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if( order == ByteOrder.BIG_ENDIAN ) { |
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this.byteorder_word = "msbfirst"; |
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} else {
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this.byteorder_word = "lsbfirst"; |
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} |
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} |
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@Override
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public void setNBands(int nbands) { |
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this.nbands = nbands;
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} |
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@Override
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public void setDataType(int dataType) { |
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switch(dataType) {
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case BufferManager.TYPE_BYTE:
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this.nbits = 8; |
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break;
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case BufferManager.TYPE_USHORT:
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this.nbits = 16; |
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break;
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case BufferManager.TYPE_INT:
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this.nbits = 32; |
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break;
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case BufferManager.TYPE_DOUBLE:
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this.nbits = 64; |
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break;
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default:
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throw new IllegalArgumentException("The data type "+dataType +" is not supported"); |
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} |
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} |
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@Override
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public void setDimensions(int nrows, int ncols, Envelope envelope) { |
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this.ncols = ncols;
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this.nrows = nrows;
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Point min = envelope.getLowerCorner();
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Point max = envelope.getUpperCorner();
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this.ulxmax = min.getX();
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this.ulymax = max.getY();
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this.ydim = (min.getY() - max.getY()) / this.nrows; |
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this.xdim = (max.getX() - min.getX()) / this.ncols; |
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} |
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@Override
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public Envelope getEnvelope() {
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Envelope envelope = null;
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try {
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if (!Double.isNaN(this.xllcorner) |
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&& !Double.isNaN(this.yllcorner) |
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&& this.cellsize > 0) { |
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envelope = GeometryLocator.getGeometryManager().createEnvelope( |
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this.xllcorner,
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this.yllcorner,
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this.xllcorner + (this.ncols * this.cellsize), |
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this.yllcorner + (this.nrows * this.cellsize), |
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Geometry.SUBTYPES.GEOM2D); |
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} |
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if (envelope == null && !Double.isNaN(this.ulxmax) |
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&& !Double.isNaN(this.ulymax) |
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&& !Double.isNaN(this.xdim) |
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&& !Double.isNaN(this.ydim)) { |
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envelope = GeometryLocator.getGeometryManager().createEnvelope( |
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this.ulxmax,
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this.ulymax - (this.nrows * this.ydim), |
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this.ulxmax + (this.ncols * this.xdim), |
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this.ulymax,
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Geometry.SUBTYPES.GEOM2D); |
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} |
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if (envelope == null && !Double.isNaN(this.xdim) |
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&& !Double.isNaN(this.ydim)) { |
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envelope = GeometryLocator.getGeometryManager().createEnvelope( |
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0,
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0,
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this.ncols * this.xdim, |
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this.nrows * this.ydim, |
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Geometry.SUBTYPES.GEOM2D); |
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} |
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if (envelope == null && this.cellsize > 0) { |
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envelope = GeometryLocator.getGeometryManager().createEnvelope( |
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0,
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0,
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this.ncols * this.cellsize, |
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this.nrows * this.cellsize, |
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Geometry.SUBTYPES.GEOM2D); |
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} |
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if (envelope == null) { |
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envelope = GeometryLocator.getGeometryManager().createEnvelope( |
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0,
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0,
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this.ncols,
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this.nrows,
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Geometry.SUBTYPES.GEOM2D); |
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} |
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} catch (Exception ex) { |
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logger.debug("Can't calculate envelope.", ex);
|
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} |
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return envelope;
|
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} |
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|
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/**
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* @return the nrows
|
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*/
|
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@Override
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public int getNrows() { |
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return nrows;
|
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} |
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|
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/**
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* @return the ncols
|
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*/
|
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@Override
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public int getNcols() { |
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return ncols;
|
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} |
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|
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/**
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* @return the nbands
|
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*/
|
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@Override
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public int getNbands() { |
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return nbands;
|
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} |
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|
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/**
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* @return the nbits
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*/
|
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@Override
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public int getNbits() { |
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return nbits;
|
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} |
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|
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/**
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* @return the byteorder
|
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*/
|
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@Override
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public ByteOrder getByteorder() { |
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return byteorder;
|
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} |
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|
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/**
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* @return the layout
|
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*/
|
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@Override
|
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public String getLayout() { |
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return layout;
|
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} |
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|
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/**
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* @return the skipbytes
|
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*/
|
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@Override
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public int getSkipbytes() { |
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return skipbytes;
|
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} |
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|
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/**
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* @return the ulxmax
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*/
|
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@Override
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public double getUlxmax() { |
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return ulxmax;
|
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} |
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|
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/**
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* @return the ulymax
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*/
|
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@Override
|
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public double getUlymax() { |
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return ulymax;
|
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} |
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|
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/**
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* @return the xdim
|
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*/
|
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@Override
|
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public double getXdim() { |
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return xdim;
|
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} |
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|
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/**
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* @return the ydim
|
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*/
|
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@Override
|
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public double getYdim() { |
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return ydim;
|
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} |
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|
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/**
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* @return the bandrowbytes
|
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*/
|
| 516 |
@Override
|
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public int getBandrowbytes() { |
| 518 |
return bandrowbytes;
|
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} |
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|
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/**
|
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* @return the totalrowbytes
|
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*/
|
| 524 |
@Override
|
| 525 |
public int getTotalrowbytes() { |
| 526 |
return totalrowbytes;
|
| 527 |
} |
| 528 |
|
| 529 |
/**
|
| 530 |
* @return the bandgapbytes
|
| 531 |
*/
|
| 532 |
@Override
|
| 533 |
public int getBandgapbytes() { |
| 534 |
return bandgapbytes;
|
| 535 |
} |
| 536 |
|
| 537 |
/**
|
| 538 |
* @return the isValid
|
| 539 |
*/
|
| 540 |
@Override
|
| 541 |
public boolean isValid() { |
| 542 |
return valid;
|
| 543 |
} |
| 544 |
|
| 545 |
/**
|
| 546 |
* @return the comments
|
| 547 |
*/
|
| 548 |
@Override
|
| 549 |
public String getComments() { |
| 550 |
return comments;
|
| 551 |
} |
| 552 |
|
| 553 |
/**
|
| 554 |
* @param comments the comments to set
|
| 555 |
*/
|
| 556 |
@Override
|
| 557 |
public void setComments(String comments) { |
| 558 |
this.comments = comments;
|
| 559 |
} |
| 560 |
|
| 561 |
/**
|
| 562 |
* @return the nodata_value
|
| 563 |
*/
|
| 564 |
@Override
|
| 565 |
public double getNodata_value() { |
| 566 |
return nodata_value;
|
| 567 |
} |
| 568 |
|
| 569 |
/**
|
| 570 |
* @return the xllcorner
|
| 571 |
*/
|
| 572 |
@Override
|
| 573 |
public double getXllcorner() { |
| 574 |
return xllcorner;
|
| 575 |
} |
| 576 |
|
| 577 |
/**
|
| 578 |
* @return the yllcorner
|
| 579 |
*/
|
| 580 |
@Override
|
| 581 |
public double getYllcorner() { |
| 582 |
return yllcorner;
|
| 583 |
} |
| 584 |
|
| 585 |
/**
|
| 586 |
* @return the cellsize
|
| 587 |
*/
|
| 588 |
@Override
|
| 589 |
public int getCellsize() { |
| 590 |
return cellsize;
|
| 591 |
} |
| 592 |
|
| 593 |
@Override
|
| 594 |
public int getBandSize() { |
| 595 |
return (this.nrows * this.ncols * this.nbits) + this.bandgapbytes; |
| 596 |
} |
| 597 |
|
| 598 |
} |