Class CrsGeoCoding

  • All Implemented Interfaces:
    GeoCoding

    public class CrsGeoCoding
    extends AbstractGeoCoding
    A geo-coding that is based on a well-known coordinate reference system (CRS) and affine transformation used to locate a product's scene image within the CRS.
    Since:
    BEAM 4.7
    • Constructor Detail

      • CrsGeoCoding

        public CrsGeoCoding​(org.opengis.referencing.crs.CoordinateReferenceSystem mapCRS,
                            int imageWidth,
                            int imageHeight,
                            double easting,
                            double northing,
                            double pixelSizeX,
                            double pixelSizeY)
                     throws org.opengis.referencing.FactoryException,
                            org.opengis.referencing.operation.TransformException
        Constructs a new instance of this class from a map CRS, image dimension, and image-to-map transformation parameters. The reference pixel is set to the BEAM default value, namely the center of the upper left image pixel (i.e. referencePixelX = referencePixelY = 0.5).
        Parameters:
        mapCRS - the map CRS.
        imageWidth - the width of the image.
        imageHeight - the height of the image.
        easting - the easting of the reference pixel position.
        northing - the northing of the reference pixel position.
        pixelSizeX - the size of a pixel along the x-axis in map units.
        pixelSizeY - the size of a pixel along the y-axis in map units (negative, if positive image Y-axis points up).
        Throws:
        org.opengis.referencing.FactoryException - when an error occurred.
        org.opengis.referencing.operation.TransformException - when an error occurred.
      • CrsGeoCoding

        public CrsGeoCoding​(org.opengis.referencing.crs.CoordinateReferenceSystem mapCRS,
                            int imageWidth,
                            int imageHeight,
                            double easting,
                            double northing,
                            double pixelSizeX,
                            double pixelSizeY,
                            double referencePixelX,
                            double referencePixelY)
                     throws org.opengis.referencing.FactoryException,
                            org.opengis.referencing.operation.TransformException
        Constructs a new instance of this class from a map CRS, image dimension, and image-to-map transformation parameters.
        Parameters:
        mapCRS - the map CRS.
        imageWidth - the width of the image.
        imageHeight - the height of the image.
        easting - the easting of the reference pixel position.
        northing - the northing of the reference pixel position.
        pixelSizeX - the size of a pixel along the x-axis in map units.
        pixelSizeY - the size of a pixel along the y-axis in map units (negative, if positive image Y-axis points up).
        referencePixelX - the x-position of the reference pixel.
        referencePixelY - the y-position of the reference pixel.
        Throws:
        org.opengis.referencing.FactoryException - when an error occurred.
        org.opengis.referencing.operation.TransformException - when an error occurred.
      • CrsGeoCoding

        public CrsGeoCoding​(org.opengis.referencing.crs.CoordinateReferenceSystem mapCRS,
                            Rectangle imageBounds,
                            AffineTransform imageToMap)
                     throws org.opengis.referencing.FactoryException,
                            org.opengis.referencing.operation.TransformException
        Throws:
        org.opengis.referencing.FactoryException
        org.opengis.referencing.operation.TransformException
    • Method Detail

      • canGetGeoPos

        public boolean canGetGeoPos()
        Description copied from interface: GeoCoding
        Checks whether or not this geo-coding can determine the geodetic position from a pixel position.
        Returns:
        true, if so
      • canGetPixelPos

        public boolean canGetPixelPos()
        Description copied from interface: GeoCoding
        Checks whether or not this geo-coding can determine the pixel position from a geodetic position.
        Returns:
        true, if so
      • dispose

        public void dispose()
        Description copied from interface: GeoCoding
        Releases all of the resources used by this object instance and all of its owned children. Its primary use is to allow the garbage collector to perform a vanilla job.

        This method should be called only if it is for sure that this object instance will never be used again. The results of referencing an instance of this class after a call to dispose() are undefined.

      • getDatum

        public Datum getDatum()
        Description copied from interface: GeoCoding
        Gets the datum, the reference point or surface against which GeoPos measurements are made.
        Returns:
        the datum
      • getGeoPos

        public GeoPos getGeoPos​(PixelPos pixelPos,
                                GeoPos geoPos)
        Description copied from interface: GeoCoding
        Returns the latitude and longitude value for a given pixel co-ordinate.
        Parameters:
        pixelPos - the pixel's co-ordinates given as x,y
        geoPos - an instance of GeoPos to be used as return value. If this parameter is null, the method creates a new instance which it then returns.
        Returns:
        the geographical position as lat/lon in the coordinate system determined by GeoCoding.getGeoCRS()
      • getPixelPos

        public PixelPos getPixelPos​(GeoPos geoPos,
                                    PixelPos pixelPos)
        Description copied from interface: GeoCoding
        Returns the pixel co-ordinates as x/y for a given geographical position given as lat/lon.
        Parameters:
        geoPos - the geographical position as lat/lon in the coordinate system determined by GeoCoding.getGeoCRS()
        pixelPos - an instance of Point to be used as return value. If this parameter is null, the method creates a new instance which it then returns.
        Returns:
        the pixel co-ordinates as x/y
      • getPixels

        public final void getPixels​(int x1,
                                    int y1,
                                    int w,
                                    int h,
                                    float[] latPixels,
                                    float[] lonPixels)
      • getPixels

        public final void getPixels​(int x1,
                                    int y1,
                                    int w,
                                    int h,
                                    double[] latPixels,
                                    double[] lonPixels)
      • isCrossingMeridianAt180

        public boolean isCrossingMeridianAt180()
        Description copied from interface: GeoCoding
        Checks whether or not the longitudes of this geo-coding cross the +/- 180 degree meridian.
        Returns:
        true, if so