private async void CalculateViewshed(MapPoint location)
{
// Get the file name
MapPoint Point = (MapPoint)GeometryEngine.Project(location, SpatialReferences.Wgs84);
RunCmd(Point.X, Point.Y);
string filepath = "C:\\Users\\zia13430\\dest.tif";
// Load the raster file
Raster myRasterFile = new Raster(filepath);
// Create the layer
RasterLayer myRasterLayer = new RasterLayer(myRasterFile);
// Create a color map where values 0-149 are red and 150-249 are yellow.
IEnumerable <Color> colors = new int[250]
.Select((c, i) => i < 150 ? Color.Red : Color.Red);
// Create a colormap renderer.
ColormapRenderer colormapRenderer = new ColormapRenderer(colors);
// Set the colormap renderer on the raster layer.
myRasterLayer.Renderer = colormapRenderer;
myRasterLayer.Opacity = 0.6;
await MyMapView.SetViewpointAsync(new Viewpoint(Point, 75000), TimeSpan.FromSeconds(1));
//myMap.InitialViewpoint = ;
// Add the layer to the map
myMap.OperationalLayers.Clear();
myMap.OperationalLayers.Add(myRasterLayer);
try
{
}
catch (Exception ex)
{
MessageBox.Show("An error occurred. " + ex.ToString(), "Sample error");
}
finally
{
// Indicate that the geoprocessing is not running
SetBusy(false);
}
}
private async void Initialize()
{
// Add an imagery basemap.
Map map = new Map(Basemap.CreateImagery());
// Load the raster file.
Raster rasterFile = new Raster(_rasterPath);
// Create the layer.
RasterLayer rasterLayer = new RasterLayer(rasterFile);
// Create a color map where values 0-149 are red and 150-249 are yellow.
IEnumerable <Color> colors = new int[250]
.Select((c, i) => i < 150 ? Color.Red : Color.Yellow);
// Create a colormap renderer.
ColormapRenderer colormapRenderer = new ColormapRenderer(colors);
// Set the colormap renderer on the raster layer.
rasterLayer.Renderer = colormapRenderer;
// Add the layer to the map.
map.OperationalLayers.Add(rasterLayer);
// Add map to the mapview.
MyMapView.Map = map;
try
{
// Wait for the layer to load.
await rasterLayer.LoadAsync();
// Set the viewpoint.
await MyMapView.SetViewpointGeometryAsync(rasterLayer.FullExtent, 15);
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
MessageBox.Show(e.Message, "Error");
}
}
