use of org.geotools.gce.geotiff.GeoTiffWriter in project OpenTripPlanner by opentripplanner.
the class Renderer method generateStreamingGeotiffResponse.
private static Response generateStreamingGeotiffResponse(final GridCoverage2D coverage) {
StreamingOutput streamingOutput = new StreamingOutput() {
public void write(OutputStream outStream) {
try {
long t0 = System.currentTimeMillis();
GeoTiffWriteParams wp = new GeoTiffWriteParams();
wp.setCompressionMode(GeoTiffWriteParams.MODE_EXPLICIT);
wp.setCompressionType("LZW");
ParameterValueGroup params = new GeoTiffFormat().getWriteParameters();
params.parameter(AbstractGridFormat.GEOTOOLS_WRITE_PARAMS.getName().toString()).setValue(wp);
new GeoTiffWriter(outStream).write(coverage, (GeneralParameterValue[]) params.values().toArray(new GeneralParameterValue[1]));
// new GeoTiffWriter(outStream).write(coverage, null); //wasn't this line writing twice and trashing compressed version?
long t1 = System.currentTimeMillis();
LOG.debug("wrote geotiff in {}msec", t1 - t0);
} catch (Exception e) {
LOG.error("exception while preparing geotiff : {}", e.getMessage());
throw new WebApplicationException(e);
}
}
};
CacheControl cc = new CacheControl();
cc.setMaxAge(3600);
cc.setNoCache(false);
return Response.ok(streamingOutput).type("image/geotiff").cacheControl(cc).build();
}
use of org.geotools.gce.geotiff.GeoTiffWriter in project OpenTripPlanner by opentripplanner.
the class RasterPopulation method writeGeotiff.
public void writeGeotiff(String fileName, ResultSet results) {
LOG.info("writing geotiff.");
float[][] imagePixelData = new float[rows][cols];
for (int row = 0; row < rows; row++) {
for (int col = 0; col < cols; col++) {
int index = row * cols + col;
float pixel = (float) (results.results[index]);
if (unitySeconds > 0)
pixel /= unitySeconds;
imagePixelData[row][col] = pixel;
}
}
GridCoverage2D coverage = new GridCoverageFactory().create("OTPAnalyst", imagePixelData, refEnvelope);
try {
GeoTiffWriteParams wp = new GeoTiffWriteParams();
wp.setCompressionMode(GeoTiffWriteParams.MODE_EXPLICIT);
wp.setCompressionType("LZW");
ParameterValueGroup params = new GeoTiffFormat().getWriteParameters();
params.parameter(AbstractGridFormat.GEOTOOLS_WRITE_PARAMS.getName().toString()).setValue(wp);
GeoTiffWriter writer = new GeoTiffWriter(new File(fileName));
writer.write(coverage, (GeneralParameterValue[]) params.values().toArray(new GeneralParameterValue[1]));
} catch (Exception e) {
LOG.error("exception while writing geotiff.", e);
}
LOG.info("done writing geotiff.");
}
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