/// <summary>
/// Create a raster layer and add it to a map.
/// </summary>
/// <returns>Task that contains a layer.</returns>
private async Task AddRasterLayerToMap()
{
try
{
// Get the first map called "Map" from the current project.
Map myMap = null;
myMap = await GetMapFromProject(Project.Current, "Map");
if (myMap == null)
{
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Failed to get map.");
return;
}
// Create a url pointing to the source. In this case it is a url to an image service
// which will result in an image service layer being created.
string dataSoureUrl = @"https://environment.data.gov.uk/image/services/SURVEY/VegetationObjectModel/ImageServer";
// Note: A url can also point to
// 1.) An image on disk or an in a file geodatabase. e.g. string dataSoureUrl = @"C:\temp\a.tif"; This results in a raster layer.
// 2.) A mosaic dataset in a file gdb e.g. string dataSoureUrl = @"c:\temp\mygdb.gdb\MyMosaicDataset"; This results in a mosaic layer.
// 3.) A raster or mosaic dataset in an enterprise geodatabase.
// Create an ImageServiceLayer object to hold the new layer.
ImageServiceLayer rasterLayer = null;
// The layer has to be created on the Main CIM Thread (MCT).
await QueuedTask.Run(() =>
{
// Create a layer based on the url. In this case the layer we are creating is an image service layer.
var layerParams = new LayerCreationParams(new Uri(dataSoureUrl));
rasterLayer = LayerFactory.Instance.CreateLayer <ImageServiceLayer>(layerParams, myMap);
// Check if it is created.
if (rasterLayer == null)
{
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Failed to create layer for url:" + dataSoureUrl);
return;
}
// Validate the colorizer to see if the layer is colorized correctly.
if (!(rasterLayer.GetColorizer() is CIMRasterRGBColorizer))
{
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Colorizer does not match for layer created from url: " + dataSoureUrl);
}
});
}
catch (Exception exc)
{
// Catch any exception found and display a message box.
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Exception caught: " + exc.Message);
return;
}
}
/// <summary>
/// Set the stretch type on the first selected image service layer in the first open 2D map.
/// </summary>
/// <param name="stretschType">The stretch type to set on the layer.</param>
/// <param name="statsType">The stretch statistics type to set on the layer. This lets you pick between Dataset, Area of View (to enable DRA) or Custom statistics.</param>
/// <returns></returns>
public static async Task SetStretchTypeAsync(RasterStretchType stretschType, RasterStretchStatsType statsType = RasterStretchStatsType.Dataset)
{
try
{
// Get the first 2D map from the project that is called Map.
Map _map = await GetMapFromProject(Project.Current, "Map");
if (_map == null)
{
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("SetStretchType: Failed to get map.");
return;
}
// Get the most recently selected layer of type ImageServiceLayer
ImageServiceLayer imageServiceLayer = MapView.Active.GetSelectedLayers().OfType <ImageServiceLayer>().FirstOrDefault();
if (imageServiceLayer != null)
{
// Set the colorizer on the most recently selected layer.
// The colorizer has to be set on the Main CIM Thread (MCT).
await QueuedTask.Run(() =>
{
// Get the colorizer from the selected layer.
CIMRasterColorizer newColorizer = imageServiceLayer.GetColorizer();
// Set the stretch type and stretch statistics type on the colorizer.
// Theese parameters only apply to the Stretch and RGB colorizers.
if (newColorizer is CIMRasterRGBColorizer)
{
((CIMRasterRGBColorizer)newColorizer).StretchType = stretschType;
((CIMRasterRGBColorizer)newColorizer).StretchStatsType = statsType;
}
else if (newColorizer is CIMRasterStretchColorizer)
{
((CIMRasterStretchColorizer)newColorizer).StretchType = stretschType;
((CIMRasterStretchColorizer)newColorizer).StatsType = statsType;
}
else
{
MessageBox.Show("Selected layer must be visualized using the RGB or Stretch colorizer");
}
// Update the image service with the new colorizer
imageServiceLayer.SetColorizer(newColorizer);
});
}
}
catch (Exception exc)
{
// Catch any exception found and display a message box.
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Exception caught while trying to set stretch type: " + exc.Message);
return;
}
}
/// <summary>
/// Create a raster layer and add it to a map.
/// </summary>
/// <returns></returns>
private async Task AddRasterLayerToMap()
{
try
{
// Get the first 2D map from the current project.
Map myMap = null;
myMap = await GetMapFromProject(Project.Current, "CIMPATH=map/map.xml");
if (myMap == null)
{
System.Windows.MessageBox.Show("Failed to get map.");
return;
}
// Create a url pointing to the source. In this case it is a url to an image service
// which will result in an image service layer being created.
string serviceURL = @"http://imagery.arcgisonline.com/arcgis/services/LandsatGLS/GLS2010_Enhanced/ImageServer";
// Note: A url can also point to
// 1.) An image on disk or an in a file geodatabase. e.g. string fileRasterURL = @"C:\temp\a.tif"; This results in a raster layer.
// 2.) A mosaic dataset in a file gdb e.g. string mosaicURL = @"c:\temp\mygdb.gdb\MyMosaicDataset"; This results in a mosaic layer.
// 3.) A raster or mosaic dataset in an enterprise geodatabase.
// Create an ImageServiceLayer object to hold the new layer.
ImageServiceLayer imageServiceLayer = null;
// The layer has to be created on the Main CIM Thread (MCT).
await QueuedTask.Run(() =>
{
// Create a layer based on the url. In this case the layer we are creating is an image service layer.
imageServiceLayer = (ImageServiceLayer)Layer.Create(new Uri(serviceURL), myMap);
// Check if it is created.
if (imageServiceLayer == null)
{
System.Windows.MessageBox.Show("Failed to Create Image Service Layer for url:" + serviceURL);
return;
}
// Validate the colorizer to see if the layer is colorized correctly.
if (!(imageServiceLayer.GetColorizer() is CIMRasterRGBColorizer))
System.Windows.MessageBox.Show("Colorizer does not match for layer created from url: " + serviceURL);
});
}
catch (Exception exc)
{
// Catch any exception found and display a message box.
System.Windows.MessageBox.Show("Exception caught: " + exc.Message);
return;
}
}
/// <summary>
/// Set the resampling type on the first selected image service layer in the first open 2D map.
/// </summary>
/// <param name="resamplingType">The resampling type to set on the layer.</param>
/// <returns></returns>
public static async Task SetResamplingTypeAsync(RasterResamplingType resamplingType)
{
try
{
// Get the first 2D map from the project that is called Map.
Map _map = await GetMapFromProject(Project.Current, "Map");
if (_map == null)
{
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("SetResamplingType: Failed to get map.");
return;
}
// Get the most recently selected layer of type ImageServiceLayer
ImageServiceLayer imageServiceLayer = MapView.Active.GetSelectedLayers().OfType <ImageServiceLayer>().FirstOrDefault();
if (imageServiceLayer != null)
{
// Set the colorizer on the most recently selected layer.
// The colorizer has to be get/set on the Main CIM Thread (MCT).
await QueuedTask.Run(() =>
{
// Get the colorizer from the selected layer.
CIMRasterColorizer newColorizer = imageServiceLayer.GetColorizer();
// Set the resampling type on the colorizer.
newColorizer.ResamplingType = resamplingType;
// Update the image service with the new colorizer
imageServiceLayer.SetColorizer(newColorizer);
});
}
}
catch (Exception exc)
{
// Catch any exception found and display a message box.
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Exception caught while trying to set resampling type: " + exc.Message);
}
}
