C# Change Text of TextDot

Rhino Developer
1

Hi there,
I fear I have to bother you with a very stupid question.
I’ve been trying to change a TextDot’s Text for one evening now and I don’t know how to move on.

Here is a snippet of my code:
Out of a list of RhinoObjects I try to do the following:

foreach (var subitem in Issues)
{
    var TDot = subitem.Id;
    var IssueDot = new ObjRef(Dot).TextDot();
    IssueDot.Text = "XXXXXXXX";
    IssueDot.SecondaryText = "XXXXXXXXXXX";
    
    subitem.CommitChanges();
}

I will have to create the object, representing the Object from Rhino by it’s Id.
If I print the TextDot’s Text, it’s printed and everything’s fine.
I guess the problem is the way I try to change the text, right?

Thanks for the support in advance.

T.

2

Hi @tobias.stoltmann,

This works in Rhino 6:

protected override Result RunCommand(RhinoDoc doc, RunMode mode)
{
  foreach (var rh_object in doc.Objects)
  {
    var text_dot = rh_object.Geometry as TextDot;
    if (null != text_dot)
    {
      var dupe_dot = text_dot.Duplicate() as TextDot;
      dupe_dot.Text = "XXXXXXXX";
      dupe_dot.SecondaryText = "XXXXXXXXXXX";
      doc.Objects.Replace(rh_object.Id, dupe_dot);
    }
  }

  doc.Views.Redraw();

  return Result.Success;
}

– Dale

1 Like
3

Hi @dale,

yes, perfect.
I investigated that issues this evening and I got the idea that I might have to replace the object, could not figure out how to do that, though. :wink:

But now it perfectly makes sense.
Thanks a lot!

T.

4

Hi @dale!

I fear it’s not working in my case.
I am getting values from a DGV and wanna compare them to the values in the dots.
The values I write into them right now are simplifyed to make things more abstract.

The thing is you did the code for a command, but I am using a class for that.
But that should not be a problem, right?

 public void UpdateItems(DataGridView IssueList)
        {
            var Issues = GetItemsFromLayers();

            for (int i = 0; i < IssueList.Rows.Count - 1; i++)
            {
                foreach (var subitem in Issues)
                {
                    var text_dot = subitem.Geometry as TextDot;
                    var dupe_dot = text_dot.Duplicate() as TextDot;
                    dupe_dot.Text = "XXXX";
                    dupe_dot.SecondaryText = "XXXXXXX";
                    
                    Rhino.RhinoDoc.ActiveDoc.Objects.Replace(subitem.Id, dupe_dot);

                }
            }   
        }

Cheers

T.

5

Don’t forget to redraw all viewports when finished.

doc.Views.Redraw();

– Dale

6

Hi @dale
I did. Just forgot to paste that. The dots are hidden, btw. might that be the problem?

T.

7

Probably. If the text dots are not hidden, does the code work?

Normally, you cannot modify document objects that are locked or hidden.

– Dale

8

Hi Dale.
The visibility’s the problem.

Thanks a lot!