Mobile Mosaic Dataset not loading properly and very slow performance!

TasawarAhmad — Sun, 05 Dec 2021 13:15:00 GMT

Hi,

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"; rasterMosaic.AddRastersAsync(parameters); } } }; 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(); MainMapView.Map.OperationalLayers.Add(rasterLayer); }

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.

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Mobile Mosaic Dataset not loading properly and very slow performance!