Class GeoTiffMetadata2CRSAdapter

  • public final class GeoTiffMetadata2CRSAdapter
    extends Object
    The GeoTiffMetadata2CRSAdapter is responsible for interpreting the metadata provided by the GeoTiffIIOMetadataDecoder for the purposes of constructing a CoordinateSystem object representative of the information found in the tags.

    This class implements the flow indicated by the following diagram:

    To use this class, the GeoTiffReader should create an instance with the CoordinateSystemAuthorityFactory specified by the GeoTiffFormat instance which created the reader. The image specific metadata should then be set with the appropriate accessor methods. Finally, the createCoordinateSystem() method is called to produce the CoordinateReferenceSystem object specified by the metadata.

    Bryce Nordgren / USDA Forest Service, Simone Giannecchini, Daniele Romagnoli
    • Constructor Detail

      • GeoTiffMetadata2CRSAdapter

        public GeoTiffMetadata2CRSAdapter​(Hints hints)
        Creates a new instance of GeoTiffMetadata2CRSAdapter
        hints - a map of hints to locate the authority and object factories. (can be null)
    • Method Detail

      • createCoordinateSystem

        public CoordinateReferenceSystem createCoordinateSystem​(GeoTiffIIOMetadataDecoder metadata)
                                                         throws Exception
        This method creates a CoordinateReferenceSystem object from the metadata which has been set earlier. If it cannot create the CoordinateReferenceSystem, then one of three exceptions is thrown to indicate the error.
        the CoordinateReferenceSystem object representing the file data
        IOException - if there is unexpected data in the GeoKey tags.
        NullPointerException - if the csAuthorityFactory, datumFactory , crsFactory or metadata are uninitialized
        UnsupportedOperationException - if the coordinate system specified by the GeoTiff file is not supported.
      • getRasterType

        public static PixelInCell getRasterType​(GeoTiffIIOMetadataDecoder metadata)
        Maps the RasterType GeoKey for this geotiff the PixelInCell
        metadata - the metadata instance to extract the information from.
        an instance of the PixelInCell enum that capture the raster type.