Examples of AbstractGridCoverage2DReader

org.geotools.coverage.grid.io.AbstractGridCoverage2DReader

This class is a first attempt for providing a way to get more informations out of a single 2D raster datasets (x,y). It is worth to remark that for the moment this is thought for 2D rasters not for 3D or 4D rasters (x,y,z,t).

The main drawback I see with the current GeoApi GridCoverageReader interface is that there is no way to get real information about a raster source unless you instantiate a GridCoverage. As an instance it is impossible to know the envelope, the number of overviews, the tile size. This information is needed in order to perform decimation on reading or to use built-in overviews
This really impacts the ability to exploit raster datasets in a desktop environment where caching is crucial. @author Simone Giannecchini, GeoSolutions @since 2.3 @source $URL$


    @Test
    public void testReadIMGCOQ_2005() throws Exception {
        tableName = "SDE.RASTER.IMG_COQ2005_CLIP_BOS";


        final AbstractGridCoverage2DReader reader = getReader();
        assertNotNull("Couldn't obtain a reader for " + tableName, reader);


        final GeneralEnvelope originalEnvelope = reader.getOriginalEnvelope();
        GridEnvelope originalGridRange = reader.getOriginalGridRange();


        final int reqWidth = originalGridRange.getSpan(0) / 2;
        final int reqHeight = originalGridRange.getSpan(1) / 2;


        Envelope reqEnvelope = originalEnvelope;

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Examples of AbstractGridCoverage2DReader

Examples of org.geotools.coverage.grid.io.AbstractGridCoverage2DReader