Hi everyone.
Pretty simple question, does anyone know how I could show a gpkg file as a basemap? The docs haven't helped and a few samples mention geopackages but then use .shp files.
Thanks,
Aaron
Hi,
I saw it earlier but couldn't quite work out how to use it. Could you perhaps provide an example of how to use it with a service or even just locally? Currently with another map system we are able to just provide a url like so "../Diagrams/{z}/{x}/{y}.png"
I believe you may use MosaicDatasetRaster.AddRastersAync() method to add rasters to mosaic dataset. Have you tried this?
MosaicDatasetRaster.AddRastersAsync Method
Thanks Nagma, that works great!
However, I have come to realise that this will not completely fulfill my requirement. Is it possible to use a mosaic file system with ArcGIS .NET? For example, have the image split into many tile PNGs across multiple folders and when you zoom in/out of the map it requests the new tiles from a server using z/x/y parameters?
Hi Aaron,
You could use the code below to display a gpkg file:
Map myMap = new Map();
// Get the full path string geoPackagePath = "..\\..\\AuroraCO.gpkg";
// Open the GeoPackage GeoPackage myGeoPackage = await GeoPackage.OpenAsync(geoPackagePath);
// Read the raster images and get the first one Raster gpkgRaster = myGeoPackage.GeoPackageRasters.FirstOrDefault();
// Make sure an image was found in the package if (gpkgRaster == null) { return; }
// Create a layer to show the raster RasterLayer newLayer = new RasterLayer(gpkgRaster);
await newLayer.LoadAsync(); myMap.Basemap.BaseLayers.Add(newLayer);
MyMapView.Map = myMap; await MyMapView.SetViewpointCenterAsync(39.5517, -104.8589);
Attached is the sample application. Hope that helps.
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