Hi all,
recently i'm using gt libraries in my project to do some shapefile stuff. After
importing the necessary gt 9 snapshot libraries my tiff writer compression in
another class doesn't work anymore. The function still writes tiff files, but
uncompressed. Here a snippet of the function I'm using to write tiff files:
import java.awt.Image;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import javax.imageio.stream.ImageOutputStream;
import javax.imageio.ImageWriter;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageIO;
import javax.imageio.IIOImage;
import com.sun.media.imageio.plugins.tiff.TIFFImageWriteParam;
File tiffFile = new File(filename);
ImageOutputStream ios = null;
ImageWriter writer = null;
BufferedImage[] images
// find an appropriate writer
Iterator it = ImageIO.getImageWritersByFormatName("TIF");
if (it.hasNext()) {
writer = (ImageWriter) it.next();
} else {
return false;
}
ios = ImageIO.createImageOutputStream(tiffFile);
writer.setOutput(ios);
TIFFImageWriteParam writeParam = new
TIFFImageWriteParam(Locale.GERMAN);
writeParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
writeParam.setCompressionType("Deflate");
writeParam.setCompressionQuality(0.5f);
//For more than one images
writer.prepareWriteSequence(null);
for (BufferedImage image : images) {
writer.writeToSequence(new IIOImage(image, null, null),
writeParam);
}
writer.endWriteSequence();
Following geotools libraries are in my classpath:
gt-api-9-SNAPSHOT.jar
gt-coverage-9-SNAPSHOT.jar
gt-cql-9-SNAPSHOT.jar
gt-data-9-SNAPSHOT.jar
gt-main-9-SNAPSHOT.jar
gt-metadata-9-SNAPSHOT.jar
gt-opengis-9-SNAPSHOT.jar
gt-referencing-9-SNAPSHOT.jar
gt-render-9-SNAPSHOT.jar
gt-shapefile-9-SNAPSHOT.jar
gt-swing-9-SNAPSHOT.jar
jt-utils-1.2.0.jar
jt-zonalstats-1.2.0.jar
jts-1.12.jar
jgridshift-1.0.jar
imageio-ext-tiff-1.1.4.jar
imageio-ext-utilities-1.1.4.jar
miglayout-3.7-swing.jar
xercesImpl-2.4.0.jar
gt-epsg-hsql-9-SNAPSHOT.jar
hsqldb-1.8.0.7.jar
It sounds a little strange, but - is it possible that the imported jars have
influences on existing, formerly working libraries such as
jai_codec.jar, jai_core.jar, jai_imageio-11.jar?
Cheers
Albrecht
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