Examples of org.geotools.coverage.grid.GridCoverageFactory

org.geotools.coverage.grid.GridCoverageFactory
A factory for {@linkplain GridCoverage2D grid coverage} objects. This factory expects variouscombinaisons of the following informations:
- A name as a {@linkplain CharSequence character sequence}.
- A {@linkplain WritableRaster raster}, or an {@linkplain RenderedImage image}, or an {@linkplain ImageFunction image function}, or a matrix of kind {@code float[][]}.
- A ( {@linkplain CoordinateReferenceSystem coordinate reference system} -{@linkplain MathTransform transform}) pair, or an {@linkplain Envelope envelope}, or a {@linkplain GridGeometry2D grid geometry}. The envelope is easier to use, while the transform provides more control.
- Information about each {@linkplain GridSampleDimension sample dimensions} (oftencalled bands in the particular case of images), or minimal and maximal expected values for each bands.
- Optional properties as a {@linkplain Map map} of key-value pairs."Properties" in Java Advanced Imaging are called "Metadata" by OpenGIS. Keys are {@link String} objects ({@link CaselessStringKey} are accepted as well), whilevalues may be any {@link Object}.
The {@linkplain CoordinateReferenceSystem coordinate reference system} is inferred from thesupplied {@linkplain Envelope envelope} or {@linkplain GridGeometry2D grid geometry} parameters.If those parameters do not have CRS information, then this factory fallback on a {@linkplain #getDefaultCRS default CRS}.

Every {@code create} methods will ultimately delegate their work to a master{@link #create(CharSequence,RenderedImage,GridGeometry2D,GridSampleDimension[],GridCoverage[],Map) create} variant. Developpers can override this method if theywant to intercept the creation of all {@link GridCoverage2D} objects in this factory.
@since 2.1 @author Martin Desruisseaux @source $URL$ @version $Id$

            .log("WARNING.  Loading image fully into memory.  It is about " + size(image) + " MB in size decompressed", null); //$NON-NLS-1$//$NON-NLS-2$


                @SuppressWarnings("rawtypes")
                BufferedImage bi = new BufferedImage(image.getColorModel(), (WritableRaster) image
                        .getData(), false, new Hashtable());
                GridCoverageFactory fac = new GridCoverageFactory();


                GridCoverage2D c = fac.create(fileName, bi, env);
                coverage = new SoftReference<GridCoverage>(c);


            } catch (OutOfMemoryError e) {
                updateMemoryLevel();
            } catch (Exception t) {

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        if (image == null) {
            return;
        }


        GridCoverageFactory factory = new GridCoverageFactory();
        GridCoverage2D coverage = (GridCoverage2D) factory.create("GridCoverage", image, tileEnvelope); //$NON-NLS-1$        


        CoordinateReferenceSystem mapCrs = getContext().getCRS();
        ReferencedEnvelope tileMapCrsEnvelope = tileEnvelope.transform(mapCrs, true);


        // determine screen coordinates of tiles

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                }
            } finally {
                graphics.dispose();
            }


            GridCoverageFactory factory = CoverageFactoryFinder.getGridCoverageFactory(null);
            GeneralEnvelope gridEnvelope = new GeneralEnvelope(mapProjection);
            gridEnvelope.setEnvelope(gridCoverageOrigin.x, gridCoverageOrigin.y, gridCoverageMaxX, gridCoverageMaxY);
            return factory.create(commonUrl.toString(), coverageImage, gridEnvelope, null, null, null);
        } catch (Exception e) {
            throw ExceptionUtils.getRuntimeException(e);
        }
    }

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        }
        
        final MapBounds bounds = mapContext.getBounds();
        final ReferencedEnvelope mapEnvelope = bounds.toReferencedEnvelope(mapContext.getPaintArea(), mapContext.getDPI());
        
        GridCoverageFactory factory = CoverageFactoryFinder.getGridCoverageFactory(null);
        GeneralEnvelope gridEnvelope = new GeneralEnvelope(mapEnvelope.getCoordinateReferenceSystem());
        gridEnvelope.setEnvelope(mapEnvelope.getMinX(), mapEnvelope.getMinY(), mapEnvelope.getMaxX(), mapEnvelope.getMaxY());
        final String coverageName = getClass().getSimpleName();
        final GridCoverage2D gridCoverage2D = factory.create(coverageName, image, gridEnvelope, null, null, null);
        
        Style style = this.styleSupplier.load(httpRequestFactory, gridCoverage2D, mapContext);
        return Collections.singletonList(new GridCoverageLayer(gridCoverage2D, style));
    }

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        LOG.debug("filled in tile image from SPT in {}msec", t1 - t0);
        return image;
    }


    public GridCoverage2D getGridCoverage2D(BufferedImage image) {
        GridCoverage2D gridCoverage = new GridCoverageFactory()
            .create("isochrone", image, gg.getEnvelope2D());
        return gridCoverage;
    }

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                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();

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    }
    
    @Test
    public void testCreateCoverage() throws IOException{
        // Definition of the parameters
        GridCoverageFactory coverageFactory = new GridCoverageFactory(GeoTools.getDefaultHints());
        String coverageName = "test";
        int imageIndex = 0;
        PlanarImage image = ConstantDescriptor.create(10f, 10f, new Byte[]{1}, GeoTools.getDefaultHints());
        MathTransform raster2Model = new AffineTransform2D(AffineTransform.getScaleInstance(2, 2));
        CoordinateReferenceSystem spatialReferenceSystem2D = DefaultGeographicCRS.WGS84;

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      // file
      final File geotiff= TestData.temp(this, "test");
      
      // write down a fake geotiff with non-standard CRS
      GridCoverageFactory factory = new GridCoverageFactory();
            BufferedImage bi = new BufferedImage(10, 10, BufferedImage.TYPE_4BYTE_ABGR);
            ReferencedEnvelope envelope = new ReferencedEnvelope(0, 10, 0, 10,DefaultGeographicCRS.WGS84);
            GridCoverage2D test = factory.create("test", bi, envelope);
            GeoTiffWriter writer = new GeoTiffWriter(geotiff);
            writer.write(test, null);
            writer.dispose();
    
            // read

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        // Setting of the parameters
        Map<String, String> metadata = new HashMap<String, String>();
        metadata.put("testKey", "testMetadata");
        List<GridCoverage2D> data = new ArrayList<GridCoverage2D>();
        GridCoverage2D cov = new GridCoverageFactory().create(TEST_NAME.getLocalPart(),
                new float[][] { { 1.0f, 1.0f } }, new ReferencedEnvelope(0.0d, 1.0d, 0.0d, 1.0d,
                        null));
        data.add(cov);
        request.setMetadata(metadata);
        request.setData(data);

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            CoverageResponse response = new CoverageResponse();
            response.setRequest(request);
            response.setHandle(request.getHandle());
            response.setStatus(Status.SUCCESS);
            // Adding results
            response.addResult(new GridCoverageFactory().create(TEST_NAME.getLocalPart(),
                    new float[][] { { 1.0f, 1.0f } }, new ReferencedEnvelope(0.0d, 1.0d, 0.0d,
                            1.0d, null)));


            return response;
        }

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