// Map Authoring Snippet
private Task ApplySymbolToFeatureLayerAsync(FeatureLayer featureLayer, string symbolName)
{
return(QueuedTask.Run(async() =>
{
//Get the ArcGIS 2D System style from the Project
var arcGIS3DStyle = Project.Current.GetItems <StyleProjectItem>().FirstOrDefault(s => s.Name == "Sample 3D Models");
//Search for the symbolName style items within the ArcGIS 2D style project item.
var items = await QueuedTask.Run(() => arcGIS3DStyle.SearchSymbols(StyleItemType.PointSymbol, symbolName));
//Gets the CIMSymbol
CIMSymbol symbol = items.FirstOrDefault().Symbol;
//Get the renderer of the point feature layer
CIMSimpleRenderer renderer = featureLayer.GetRenderer() as CIMSimpleRenderer;
//Set symbol's real world setting to be the same as that of the feature layer
symbol.SetRealWorldUnits(featureLayer.UsesRealWorldSymbolSizes);
//Apply the symbol to the feature layer's current renderer
renderer.Symbol = symbol.MakeSymbolReference();
try
{
//Appy the renderer to the feature layer
featureLayer.SetRenderer(renderer);
}
catch (Exception ex)
{
MessageBox.Show("Error in ApplySymbolToFeatureLayerAsync: " + ex.ToString(), "Error");
}
}));
}
public Task SetFeatureLayerSymbolFromStyleItemAsync(FeatureLayer ftrLayer, SymbolStyleItem symbolItem)
{
if (ftrLayer == null || symbolItem == null)
{
throw new System.ArgumentNullException();
}
return(QueuedTask.Run(() =>
{
//Get simple renderer from the feature layer
CIMSimpleRenderer currentRenderer = ftrLayer.GetRenderer() as CIMSimpleRenderer;
if (currentRenderer == null)
{
return;
}
//Get symbol from the SymbolStyleItem
CIMSymbol symbol = symbolItem.Symbol;
//Set symbol's real world setting to be the same as that of the feature layer
symbol.SetRealWorldUnits(ftrLayer.UsesRealWorldSymbolSizes);
//Update the symbol of the current simple renderer
currentRenderer.Symbol = symbol.MakeSymbolReference();
//Update the feature layer renderer
ftrLayer.SetRenderer(currentRenderer);
}));
}
//Create a CIMSymbol from style item selected in the results gallery list box and
//apply this newly created symbol to the feature layer currently selected in Contents pane
private async void ApplyTheSelectedSymbol(SymbolStyleItem selectedStyleItemToApply)
{
if (selectedStyleItemToApply == null || string.IsNullOrEmpty(selectedStyleItemToApply.Key))
{
return;
}
await QueuedTask.Run(() =>
{
//Get the feature layer currently selected in the Contents pane
var selectedLayers = MapView.Active.GetSelectedLayers();
//Only one feature layer should be selected in the Contents pane
if (selectedLayers.Count != 1)
{
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Select the feature layer to which you want to apply the selected symbol. Only one feature layer should be selected.");
//Clear the current selection in gallery
_selectedStyleItem = null;
NotifyPropertyChanged(() => SelectedStyleItem);
return;
}
FeatureLayer ftrLayer = selectedLayers[0] as FeatureLayer;
//The selected layer should be a feature layer
if (ftrLayer == null)
{
return;
}
//Get symbol from symbol style item.
CIMSymbol symbolFromStyleItem = selectedStyleItemToApply.Symbol;
//Make sure there isn't a mismatch between the type of selected symbol in gallery and feature layer geometry type
if ((symbolFromStyleItem is CIMPointSymbol && ftrLayer.ShapeType != esriGeometryType.esriGeometryPoint) ||
(symbolFromStyleItem is CIMLineSymbol && ftrLayer.ShapeType != esriGeometryType.esriGeometryPolyline) ||
(symbolFromStyleItem is CIMPolygonSymbol && ftrLayer.ShapeType != esriGeometryType.esriGeometryPolygon && ftrLayer.ShapeType != esriGeometryType.esriGeometryMultiPatch))
{
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("There is a mismatch between symbol type and feature layer geometry type.");
//Clear the current selection in gallery
_selectedStyleItem = null;
NotifyPropertyChanged(() => SelectedStyleItem);
return;
}
//Get simple renderer from feature layer
CIMSimpleRenderer currentRenderer = ftrLayer.GetRenderer() as CIMSimpleRenderer;
if (currentRenderer == null)
{
ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Select a feature layer symbolized with a simple renderer.");
//Clear the current selection in gallery
_selectedStyleItem = null;
NotifyPropertyChanged(() => SelectedStyleItem);
return;
}
//Set real world setting for created symbol = feature layer's setting
//so that there isn't a mismatch between symbol and feature layer
symbolFromStyleItem.SetRealWorldUnits(ftrLayer.UsesRealWorldSymbolSizes);
//Set current renderer's symbol reference = symbol reference of the newly created symbol
currentRenderer.Symbol = symbolFromStyleItem.MakeSymbolReference();
//Update feature layer renderer with new symbol
ftrLayer.SetRenderer(currentRenderer);
});
}
private Task SetFeatureLayerSymbolAsync(FeatureLayer ftrLayer, CIMSymbol symbolToApply)
{
if (ftrLayer == null || symbolToApply == null)
throw new System.ArgumentNullException();
return QueuedTask.Run(() => {
//Get simple renderer from the feature layer
CIMSimpleRenderer currentRenderer = ftrLayer.GetRenderer() as CIMSimpleRenderer;
if (currentRenderer == null)
return;
//Set symbol's real world setting to be the same as that of the feature layer
symbolToApply.SetRealWorldUnits(ftrLayer.UsesRealWorldSymbolSizes);
//Update the symbol of the current simple renderer
currentRenderer.Symbol = symbolToApply.MakeSymbolReference();
//Update the feature layer renderer
ftrLayer.SetRenderer(currentRenderer);
});
}