/// <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)
{
UIDocument activeDoc = commandData.Application.ActiveUIDocument;
Autodesk.Revit.DB.Document doc = activeDoc.Document;
if (null == doc)
{
return(Result.Failed);
}
using (Transaction trans = new Transaction(doc, "Revit.SDK.Samples.AddRelationBetweenPhysicalAndAnalyticalElements"))
{
trans.Start();
ElementId analyticalElementId = ContextualAnalyticalModel.Utilities.GetSelectedObject(activeDoc, "Please select analytical element");
ElementId physicalElementId = ContextualAnalyticalModel.Utilities.GetSelectedObject(activeDoc, "Please select physical element");
//gets the AnalyticalToPhysicalAssociationManager for the current document
AnalyticalToPhysicalAssociationManager analyticalToPhysicalmanager = AnalyticalToPhysicalAssociationManager.GetAnalyticalToPhysicalAssociationManager(doc);
if (analyticalToPhysicalmanager == null)
{
return(Result.Failed);
}
//creates a new relation between physical and analytical selected elements
analyticalToPhysicalmanager.AddAssociation(analyticalElementId, physicalElementId);
trans.Commit();
}
return(Result.Succeeded);
}
