Examples of org.geotools.data.WorldFileReader

org.geotools.data.WorldFileReader

This class is responsible for parsing a world file in order to build an affine transform using the parameters provided in the file itself.

The parameters found in the file should be as follows:

size of pixel in x direction
rotation term for row
rotation term for column
size of pixel in y direction
x coordinate of centre of upper left pixel in map units
y coordinate of centre of upper left pixel in map units

Note that the last two coordinates refer to the centre of the pixel!

It is worth to point out that various data sources describe the parameters in the world file as the mapping from the pixel centres' to the associated world coords. Here we directly build the needed grid to world transform and we DO NOT add any half a pixel translation given that, as stated above, the values we receive should map to the centre of the pixel. @author Simone Giannecchini, GeoSolutions @since 2.3 @source $URL$


            // We can now construct the baseURL from this string.
            File file2Parse = new File(base + ".wld");


            if (file2Parse.exists()) {
                final WorldFileReader reader = new WorldFileReader(file2Parse);
                raster2Model = reader.getTransform();
            } else {
                // looking for another extension
                file2Parse = new File(base + ".tfw");


                if (file2Parse.exists()) {
                    // parse world file
                    final WorldFileReader reader = new WorldFileReader(file2Parse);
                    raster2Model = reader.getTransform();
                }
            }
        }
        return raster2Model;
    }

Examples of org.geotools.data.WorldFileReader

Related Classes of org.geotools.data.WorldFileReader