Revit API

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Active Member
ricobano
Posts: 7
Registered: ‎06-28-2011
Message 1 of 4 (300 Views)

Filter selection of elements by family

300 Views, 3 Replies
06-30-2011 02:36 AM

Hi guys i need to filter the selected elements by family.  We have a timber beam family and i need to modify only selected elements that are part of the timber family.

 

Any ideas?

Mentor
ollikat
Posts: 165
Registered: ‎04-01-2011
Message 2 of 4 (288 Views)

Re: Filter selection of elements by family

06-30-2011 05:16 AM in reply to: ricobano

First solution that came to my mind:

 

Go trough all you elements in selection and...

 

1. First of all accept only those which can be casted to FamilyInstance(s).

2. Get the family symbol with FamilyInstance::smileyfrustrated:ymbol and furthermore family with FamilySymbol::Family

3. If family element ID is same than timber family's ID, you got your element ;-)

Active Member
ricobano
Posts: 7
Registered: ‎06-28-2011
Message 3 of 4 (284 Views)

Re: Filter selection of elements by family

06-30-2011 06:42 AM in reply to: ollikat

Thanks Any chance of some code.  Im all new to autodesk

Mentor
ollikat
Posts: 165
Registered: ‎04-01-2011
Message 4 of 4 (254 Views)

Re: Filter selection of elements by family

06-30-2011 11:08 PM in reply to: ricobano

This is just quick sample I wrote (C++ CLI)...not even tested that it compiles. If you are using C#, you have to figure out your self how to convert syntax ;-)

 

List<Element^> timberElems;

  for each (Element ^elem in ActiveUIDocument->Selection->Elements)
  {
    try
    {
      FamilyInstance ^fInst = safe_cast<>(elem);
      Family ^selFam = fInst->Symbol->Family;

      if (selFam->Id->IntegerValue == timberFam->Id->IntegerValue)
        timberElems.Add(elem);
    }
    catch (InvalidCastException^)
    {
      ;
    }

 

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