Mobile Mosaic Dataset not loading properly and very slow performance!

12-04-2021 06:45 AM
New Contributor III



I have registered 2 tiles ('world.JP2' & 'mycity.jp2') using mobile mosaic dataset raster. 

However as soon after loading the mosaic datasets, I try to zoom on mycity.jp2 raster, this artifact appears.

Also speed of map rendering is very slow as compared to devexpress mapview control using .png tiles. How can I solve these issues? 

Here is my code sample for your kind review:




    private async void RegisterRasters()
            // Create a new mobile mosaic dataset.
            MosaicDatasetRaster rasterMosaic = MosaicDatasetRaster.Create(@"E:\Maps\mosaic.sqlite", "Shasta", SpatialReferences.Wgs84);

            // When the new mosaic dataset is ready, add some raster files.
            rasterMosaic.LoadStatusChanged += (s, e) =>
                // If loaded successfully, start adding rasters
                if (e.Status == Esri.ArcGISRuntime.LoadStatus.Loaded)
                    AddRastersParameters parameters = new AddRastersParameters();
                         parameters.InputDirectory = @"E:\Maps\rasters";
            await rasterMosaic.LoadAsync();
            MessageBox.Show("Rasters registered!");

        private void LoadRastersOnMap(object sender, RoutedEventArgs e)
            string sqliteDbPath = @"E:\Maps\mosaic.sqlite";
            // Get mosaic dataset names in the SQLite database.
            var names = MosaicDatasetRaster.GetNames(sqliteDbPath);
            var rasterName = names[0];
            // Create a raster from a mosaic dataset
            MosaicDatasetRaster raster = new MosaicDatasetRaster(sqliteDbPath, rasterName);
            RasterLayer rasterLayer = new RasterLayer(raster);
           // await rasterLayer.LoadAsync();





Interestingly while registering rasters, If I set these 2 parameters then this artifact disappears but map loading is still slow. 



parameters.MinPixelSizeFactor = 0.01;   
parameters.MaxPixelSizeFactor = 1; 



(I m unable to find documentation regarding these 2 parameters, Can you explain them as well please).


Update: I have now converted mycity.jp2 in tiles (approx 100 tiles) but .prj file (which has extent information) is not loading.

0 Kudos
0 Replies