Class GridCoverageLayer

  • public class GridCoverageLayer
    extends RasterLayer
    Layer used to draw a raster GridCoverage.

    Direct access to the GridCoverage is available using getCoverage(), the outline of the raster is also available via toFeatureCollection() for vector based rendering systems.

    Jody Garnett
    • Field Detail

      • coverage

        protected GridCoverage2D coverage
        Grid Coverage to be drawn.
    • Constructor Detail

      • GridCoverageLayer

        public GridCoverageLayer​(GridCoverage2D coverage,
                                 Style style)
        Create layer to draw the provided grid coverage.
        coverage - The new layer that has been added.
      • GridCoverageLayer

        public GridCoverageLayer​(GridCoverage2D coverage,
                                 Style style,
                                 String title)
        Create layer to draw the provided grid coverage.
    • Method Detail

      • dispose

        public void dispose()
        Description copied from class: Layer
        Allows a Layer to clean up any listeners, or internal caches or resources it has added during use.
        dispose in class RasterLayer
      • getCoverage

        public GridCoverage2D getCoverage()
        Access to the grid coverage being drawn.
        grid coverage being drawn.
      • getBounds

        public ReferencedEnvelope getBounds()
        Layer bounds generated from the grid coverage.
        Specified by:
        getBounds in class Layer
        layer bounds generated from the grid coverage.
      • toFeatureCollection

        public SimpleFeatureCollection toFeatureCollection()
        Description copied from class: RasterLayer
        Supply a FeatureCollection indicating where the raster is located, we ask that the features use the same coordinate reference system as your raster data and form an outline or foot print of the information you have available.

        This is an interesting method for a RasterLayer to have; some of the rendering systems are willing to render your raster content as an outline; for this to work they need this method to supply a feature collection indicating where the content is located. The information may also be used to determine if any of your raster content is on screen (and thus needs to be rendered).

        Note this is a feature collection to allow for raster content that contains more than one image; and is not based bounding boxes (as sometimes rasters are rotated or stretched into position).

        You may find the FeatureUtilities useful in wrapping up your raster content.

        Specified by:
        toFeatureCollection in class RasterLayer
        SimpleFeatureCollection indicating the location of raster content