public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
Result rc = Result.Failed;
UIApplication app = commandData.Application;
Document doc = app.ActiveUIDocument.Document;
// Check whether the family we are interested in is loaded:
#if _2010
List<Element> symbols = new List<Element>();
Filter filterFamily = creApp.Filter.NewFamilyFilter( _family_name );
doc.get_Elements( filterFamily, symbols );
// the family filter returns both the symbols and the family itself:
Family f = null;
foreach( Element e in symbols )
{
if( e is Family )
{
f = e as Family;
}
else if( e is FamilySymbol )
{
FamilySymbol s = e as FamilySymbol;
Debug.Print( "Family name={0}, symbol name={1}", s.Family.Name, s.Name );
}
}
#endif // _2010
Family f = Util.GetFirstElementOfTypeNamed(
doc, typeof( Family ), _family_name ) as Family;
using ( Transaction t = new Transaction( doc ) )
{
t.Start( "Create Beam Type and Instance" );
// If the family was not already loaded, then do so:
if ( null == f )
{
if ( !doc.LoadFamily( _path, out f ) )
{
message = "Unable to load '" + _path + "'.";
}
}
if ( null != f )
{
Debug.Print( "Family name={0}", f.Name );
// Pick a symbol for duplication, any one will do,
// we select the first:
FamilySymbol s = null;
//foreach( FamilySymbol s2 in f.Symbols ) // 2014
foreach ( ElementId id in f.GetFamilySymbolIds() ) // 2015
{
s = doc.GetElement( id ) as FamilySymbol;
break;
}
Debug.Assert( null != s, "expected at least one symbol to be defined in family" );
// Duplicate the existing symbol:
ElementType s1 = s.Duplicate( "Nuovo simbolo" );
s = s1 as FamilySymbol;
// Analyse the symbol parameters:
foreach ( Parameter param in s.Parameters )
{
Debug.Print( "Parameter name={0}, value={1}", param.Definition.Name, param.AsValueString() );
}
// Define new dimensions for our new type;
// the specified parameter name is case sensitive:
//s.get_Parameter( "b" ).Set( Util.MmToFoot( 500 ) ); // 2014
//s.get_Parameter( "h" ).Set( Util.MmToFoot( 1000 ) ); // 2014
s.LookupParameter( "b" ).Set( Util.MmToFoot( 500 ) ); // 2015
s.LookupParameter( "h" ).Set( Util.MmToFoot( 1000 ) ); // 2015
// we can change the symbol name at any time:
s.Name = "Nuovo simbolo due";
// insert an instance of our new symbol:
Autodesk.Revit.Creation.Application creApp = app.Application.Create;
Autodesk.Revit.Creation.Document creDoc = doc.Create;
// It is possible to insert a beam,
// which normally uses a location line,
// by specifying only a location point:
//XYZ p = XYZ.Zero;
//doc.Create.NewFamilyInstance( p, s, nonStructural );
XYZ p = XYZ.Zero;
XYZ q = creApp.NewXYZ( 30, 20, 20 ); // feet
Line line = Line.CreateBound( p, q );
// Specifying a non-structural type here means no beam
// is created, and results in a null family instance:
FamilyInstance fi = creDoc.NewFamilyInstance(
line, s, null, stBeam );
// This creates a visible family instance,
// but the resulting beam has no location line
// and behaves strangely, e.g. cannot be selected:
//FamilyInstance fi = doc.Create.NewFamilyInstance(
// p, s, q, null, nonStructural );
//List<Element> levels = new List<Element>();
//doc.get_Elements( typeof( Level ), levels );
//Debug.Assert( 0 < levels.Count,
// "expected at least one level in model" );
//Level level = levels[0] as Level;
//fi = doc.Create.NewFamilyInstance(
// line, s, level, nonStructural );
rc = Result.Succeeded;
}
t.Commit();
}
return rc;
}
