An Example for using MultiReferenceAnnotation?

[Anonymous]

Hello
Is it possible to get an example to create a Multi-rebar annotations, I search on the Revit SDK and found I have to use the MultiReferenceAnnotation class.

But I can't build an example with the current information.

For creating A normal Rebar Tag I'm using the Autodesk.Revit.Creation.Document.Create.NewTag method

I notice the independent tag has a property named MultiReferenceAnnotationId.

I'm using VS2012 c#, Revit 2014 and Windows 8 64bits

Thanks

[jeremytammik · Accepted solution]

Dear miguel.alanis,

Please note the MultiReferenceAnnotation.Create method taking a MultiReferenceAnnotationOptions argument.

The minimum options are probably the type and ElementsToDimension.

Here is an excerpt from an internal test suite I received from the development team:

  var view = GetElement<View>(124186);
  var rebarList = GetElements<Element>(RevitDoc, new[] { 280427 }).ToList();
  Assert.IsTrue(rebarList.Count > 0, "There are no rebars in the document!");
  IList<ElementId> elementIds = new List<ElementId>();
  foreach (Element rebar in rebarList)
  {
    elementIds.Add(rebar.Id);
  }
  MultiReferenceAnnotationType type = GetElement<MultiReferenceAnnotationType>(RevitDoc, 260544);
  Assert.IsNotNull(type, "the MultiReferenceAnnotationType does not exist!");
  MultiReferenceAnnotationOptions options = new MultiReferenceAnnotationOptions(type);
  options.TagHeadPosition = new XYZ(0, 100, 0);
  options.DimensionLineOrigin = new XYZ(5, 5, 1);
  options.DimensionLineDirection = new XYZ(0, 1, 0);
  options.DimensionPlaneNormal = view.ViewDirection;
  options.SetElementsToDimension(elementIds);
  using (Transaction tran = new Transaction(RevitDoc, "Create_Rebar_Vertical"))
  {
    tran.Start();
    var mra = MultiReferenceAnnotation.Create(RevitDoc, view.Id, options);
    var dimension = GetElement<Dimension>(RevitDoc, mra.DimensionId);
    tran.Commit();
  }

I hope this helps.

Best regards,

Jeremy

[Anonymous]

Dear Jeremy,

Thanks for the answer

Best Regards

Miguel Angel Alanis

[jeremytammik]

Dear Miguel Angel,

Thank you for your response. I put it on The Building Coder as well to ensure it is easily found:

http://thebuildingcoder.typepad.com/blog/2013/09/multireferenceannotation-example.html

Cheers,

Jeremy

[Maciej_Darmochwal]

Hi,

I would like to refresh the topic because i cant found any information about option that i could manage orientation (vertical,horizontal) created tags. Is that possible?

[lukasz_koc2]

Hi, 

if you haven't found the solution yet you can use this :

annotation = MultiReferenceAnnotation.Create(doc, view.Id, annotation_opt)

tag = doc.GetElement(annotation.TagId)

tag.TagOrientation = TagOrientation.Horizontal

I have one question too. Do you know why in the dimension line i have 2 additional references? The bars are bended but in this view they are shown as points( bend in above the section)

[jeremytammik]

Dear Łukasz,

Thank you for your answer, and also for the new question, which I already answered (as far as I am able to) in the comment on The Building Coder:

https://thebuildingcoder.typepad.com/blog/2013/09/multireferenceannotation-example.html#comment-4867...

If you can determine the geometric location of the feature that each reference is associated with, you should be able to use that information to tell the two apart.

Cheers,

Jeremy

[jamess166]

As it is done to locate the location of the reinforcements to place the dimension.

I'm trying to understand how geometry works in views. I imagine it could work like this.

Options opp = new Options();
            opp.View = RevitTools.doc.ActiveView;
            GeometryElement geoEl = r.get_Geometry(opp);
            BoundingBoxXYZ box = geoEl.GetBoundingBox();

            //Creo lista de elementos
            List<ElementId> listIds = new List<ElementId>();
            listIds.Add(r.Id);
            
            //Opciones de Multirebar
            MultiReferenceAnnotationOptions opt = 
                new MultiReferenceAnnotationOptions(ViewTools.MultiRebar);

            opt.TagHasLeader = false;

            //Ubicaciones
            opt.TagHeadPosition = ?????;
            opt.DimensionLineOrigin = ?????;
            opt.DimensionLineDirection = ?????;
            opt.DimensionPlaneNormal = RevitTools.doc.ActiveView.ViewDirection;

            opt.SetElementsToDimension(listIds);

            MultiReferenceAnnotation.Create(RevitTools.doc, r.Id, opt);

The intention is that it works for any view and any type of presentation.

[pedro_abril]

Hello, I have a question with the above code.

How do you get a reference to the individual rebars elements within the rebar?

I have reviewed the messages indicated in the links and the API documentation (2022), but I have not found a way.

In the example code I need to know how to get the part with question marks:

public void RebarAnnotation(Document doc, View view, Rebar rebar){ 
  //  I already have it
  MultiReferenceAnnotationType type = getAnnoType();
  MultiReferenceAnnotationOptions options = getAnnoOptions(type);

  // I need the part with question marks
  IList<ElementId> elementIds = new List<ElementId>();
  foreach (Element rbr in ???) {
    elementIds.Add(rbr.Id);
  }
  options.SetElementsToDimension(elementIds);

  //  I already have it
  using (Transaction tran = new Transaction(doc)) {
    tran.Start("Rebar Annotation");
    MultiReferenceAnnotation.Create(doc, view.Id, options);
    tran.Commit();
  }
}

Thank you.

(I have edited to correct some errors in the code)

[pedro_abril]

Hello,
Thanks to the help of the development team (thanks to Naveen Kumar T) I have solved the previous question.
I leave the solution for future reference in case it helps someone else:

public void RebarAnnotation(Document doc, View view, Rebar rebar){ 
  //  I already have it
  MultiReferenceAnnotationType type = getAnnoType();
  MultiReferenceAnnotationOptions options = getAnnoOptions(type);

  // With the reference to the set of bars it is enough.
  IList<ElementId> elementIds = new List<ElementId>();
  elementIds.Add(rebar.Id);

  options.SetElementsToDimension(elementIds);

  //  I already have it
  using (Transaction tran = new Transaction(doc)) {
    tran.Start("Rebar Annotation");
    MultiReferenceAnnotation.Create(doc, view.Id, options);
    tran.Commit();
  }
}

With the reference to the set of bars it is enough, it is not necessary to identify each individual bar.