/// <summary>
/// Implement this method as an external command for Revit.
/// </summary>
/// <param name="commandData">An object that is passed to the external application
/// which contains data related to the command,
/// such as the application object and active view.</param>
/// <param name="message">A message that can be set by the external application
/// which will be displayed if a failure or cancellation is returned by
/// the external command.</param>
/// <param name="elements">A set of elements to which the external application
/// can add elements that are to be highlighted in case of failure or cancellation.</param>
/// <returns>Return the status of the external command.
/// A result of Succeeded means that the API external method functioned as expected.
/// Cancelled can be used to signify that the user cancelled the external operation
/// at some point. Failure should be returned if the application is unable to proceed with
/// the operation.</returns>
public virtual Result Execute(ExternalCommandData commandData
, ref string message, ElementSet elements)
{
try
{
Autodesk.Revit.DB.Document document = commandData.Application.ActiveUIDocument.Document;
// Create a new transaction
Transaction tran = new Transaction(document, "GeometryCreation_BooleanOperation");
tran.Start();
// Create an object that is responsible for creating the solids
GeometryCreation geometryCreation = GeometryCreation.getInstance(commandData.Application.Application);
// Create an object that is responsible for displaying the solids
AnalysisVisualizationFramework AVF = AnalysisVisualizationFramework.getInstance(document);
// Create a CSG tree solid
CSGTree(geometryCreation, AVF);
tran.Commit();
// Set the view which display the solid active
commandData.Application.ActiveUIDocument.ActiveView =
(((new FilteredElementCollector(document).
OfClass(typeof(Autodesk.Revit.DB.View))).
Cast <Autodesk.Revit.DB.View>()).
Where(e => e.Name == "CSGTree")).
First <Autodesk.Revit.DB.View>();
return(Result.Succeeded);
}
catch (Exception ex)
{
message = ex.Message;
return(Result.Failed);
}
}