public override Value Evaluate(FSharpList<Value> args)
{
var xyzs = ((Value.List)args[0]).Item;
var symbol = (FamilySymbol) ((Value.Container) args[1]).Item;
var instData = new List<FamilyInstanceCreationData>();
var updated = new HashSet<ElementId>();
int count = 0;
#region batch creation data
var sw = new Stopwatch();
sw.Start();
foreach (var pts in xyzs)
{
FamilyInstance instance = null;
if (Elements.Count > count)
{
if (dynUtils.TryGetElement(this.Elements[count], out instance))
{
//if we've found an instance, change its symbol if it needs
//changing
if (instance.Symbol.Id != symbol.Id)
instance.Symbol = symbol;
//update the placement points and add the
//id to the list of updated acs
UpdatePlacementPoints(instance, xyzs, count);
updated.Add(Elements[count]);
}
else
{
var instanceData = new FamilyInstanceCreationData(XYZ.Zero, symbol, StructuralType.NonStructural);
instData.Add(instanceData);
}
}
else
{
var instanceData = new FamilyInstanceCreationData(XYZ.Zero, symbol, StructuralType.NonStructural);
instData.Add(instanceData);
}
count++;
}
sw.Stop();
Debug.WriteLine(string.Format("{0} elapsed for updating existing or generating family creation data.", sw.Elapsed));
sw.Reset();
#endregion
//trim the elements collection
foreach (var e in this.Elements.Skip(count))
{
DeleteElement(e);
}
FSharpList<Value> results = FSharpList<Value>.Empty;
sw.Start();
ICollection<ElementId> ids = new List<ElementId>();
if (instData.Any())
{
if (dynRevitSettings.Doc.Document.IsFamilyDocument)
{
ids = dynRevitSettings.Doc.Document.FamilyCreate.NewFamilyInstances2(instData);
}
else
{
ids = dynRevitSettings.Doc.Document.Create.NewFamilyInstances2(instData);
}
if (ids.Count > 0)
{
//hack to force regeneration. There should be a better way!!
XYZ moveVec = new XYZ(0.0, 0.0, 0.0);
ElementTransformUtils.MoveElement(this.UIDocument.Document, ids.ElementAt(0), moveVec);
}
//add our batch-created instances ids'
//to the elements collection
ids.ToList().ForEach(x => Elements.Add(x));
}
sw.Stop();
Debug.WriteLine(string.Format("{0} elapsed for creating instances from creation data.", sw.Elapsed));
sw.Reset();
sw.Start();
//make sure the ids list and the XYZ sets list
//have the same length
if (count != xyzs.Count())
{
foreach (var eId in ids)
{
DeleteElement(eId);
}
throw new Exception("There are more adaptive component instances than there are points to adjust.");
}
try
{
for (var j = 0; j < Elements.Count; j++)
{
if (updated.Contains(Elements[j]))
{
continue;
}
FamilyInstance ac;
if (!dynUtils.TryGetElement(Elements[j], out ac))
{
continue;
}
UpdatePlacementPoints(ac, xyzs, j);
}
}
catch (Exception ex)
{
foreach (var eId in ids)
{
DeleteElement(eId);
}
throw ex;
}
sw.Stop();
Debug.WriteLine(string.Format("{0} elapsed for updating remaining instance locations.", sw.Elapsed));
//add all of the instances
results = Elements.Aggregate(results,
(current, id) =>
FSharpList<Value>.Cons(Value.NewContainer(dynRevitSettings.Doc.Document.GetElement(id)), current));
results.Reverse();
return Value.NewList(results);
}
