sorry din realise my post was in such a awful format I reposting it again I want to write a Iselection filter to only have my UI select Mass in the revit document. I have done it for roof element, the code is as follow:
public class MySelectionFilter : ISelectionFilter
{
public bool AllowElement(Element elem)
{
return elem is RoofBase;
}
public bool AllowReference(Reference reference, XYZ position)
{
return true;
}
}
public Result Execute( ExternalCommandData commandData, ref string message, ElementSet elements)
{ try
{ while (true)
{
//pick an object from the document that is of roof type
UIDocument doc = commandData.Application.ActiveUIDocument;
Reference selRef = doc.Selection.PickObject(ObjectType.Element, new MySelectionFilter(), "select a roof");
//turn the selected object into a roof element
RoofBase roof = (RoofBase)selRef.Element;
so i tried to modify the script by wanting to change return elem is RoofBase to return elem is Mass, but I realise there is no massing class in Revit API? Or is there any other that I can limit my UI selection filter to only select the massing objects in my document ? Thanks ....
