예제 #1
0
        public static IEnvelope GetExtents([NotNull] Dataset dataset)
        {
            if (dataset == null)
            {
                return(null);
            }
            var geoTrans = new double[6];

            dataset.GetGeoTransform(geoTrans);
            var err = (CPLErr)Gdal.GetLastErrorType();

            if (CPLErr.CE_None != err)
            {
                throw new ApplicationException("GetGeoTransform() failed.");
            }

            var regularGridGeoTransform = new RegularGridGeoTransform(geoTrans);

            return(GeometryFactory.CreateEnvelope(regularGridGeoTransform.Left,
                                                  regularGridGeoTransform.Left +
                                                  (regularGridGeoTransform.HorizontalPixelResolution *
                                                   dataset.RasterXSize),
                                                  regularGridGeoTransform.Top -
                                                  (regularGridGeoTransform.VerticalPixelResolution *
                                                   dataset.RasterYSize),
                                                  regularGridGeoTransform.Top));
        }