Latest Contributions by JohnCartse

Hello! I have loaded a map like this:     MapView mapView = new MapView(); ArcGISMap map = new ArcGISMap(SpatialReferences.getWebMercator()); map.setBasemap(Basemap.createImagery()); map.setMaxScale(...); mapView.setMap(map);   Now, with this mapView object, I would like to rotate the map using the mouse (dragging the mouse). (note: I don't want to rotate the map itself, just the 'view' or camera, if you will). I managed to achieve it by doing this when I drag the mouse:   mapView.setViewpointRotationAsync(mousePosDiffX);   (note: this method returns a ListenableFuture<Boolean> to tell when it is done.) However, it is very laggy. My first solution would be to avoid calling to much setViewpointRotationAsync by checking the CompletableFuture and call it only when the rotation is it complete using some kind of mutex/lock.. but it is not very successful. Any help appreciated! Thanks! ... View more

Hello, I am loading a A.TOC (CADRG) file. To be more precise, I am reading the A.TOC and it points me to 412 RPF  files located in a sub-folder. I load each of these RPF files in a RasterLayer.   GroupLayer groupLayer = new GroupLayer(); for(File frame : frames) { RasterLayer r = new RasterLayer(new Raster(frame.path)); groupLayer.add(r); }   When I display this groupLayer on the map, it is very slow when all the 412 layers are visible on the map. It is very laggy and struggle to manipulate (zoom, move) the map. As I zoom into the tiles so that some tiles are out of the sight, it gets a bit better. Is there a way to improve this performance issue? Thanks in advance! JC ... View more