Examples with GeoTiffWriteParams org.geotools.gce.geotiff.GeoTiffWriteParams used on opensource projects

Example 1 with GeoTiffWriteParams

use of org.geotools.gce.geotiff.GeoTiffWriteParams 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();
}

Example 2 with GeoTiffWriteParams

use of org.geotools.gce.geotiff.GeoTiffWriteParams 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.");
}