Strange trash in Rhino Document, invisible brep

Rhino Developer
1

Hi, genius people)

I have model to export geometry from.

model.png808×493 37.1 KB

It is symmetric, but on picture you can see, that center of model isn’t point 0.0.0

      f3dm = Rhino.FileIO.File3dm.Read(RhinoDocument.Path);
      BoundingBox rhinoBoundingBox = f3dm.Objects.GetBoundingBox();

I noticed that bounding box is strange:

Count of objects is about 1600.
I selected and deleted all visible objects and started export again.

Count of objects changed to about 1300.

In properties I saw that most count of them are Brep.
Visible - true
Is valid - true

Nothing strange, except of Linetypeindex = -1, but I don’t know what does it mean.

I did CTRL+A to select this “ghosts”, but Rhino said “No objects added to selection”.

Because of this objects I will get wrong bounding box, but I need correct))

Did anybody run into this problem? Maybe Rhino has some methods to clean the documents?
Is there any way to differ Ghost object from normal?

Model doesn’t want to upload on forum, so I added it on yandex.

Model

2

I’m not really sure what you are doing. But if I open the model in Rhino, turn on all of the layers, and run SelectAll, 1906 objects are selected. So does the following code snipped:

var f = Rhino.FileIO.File3dm.Read("C:\\Users\\Dale\\Downloads\\Cabin.3dm");
if (null != f)
  RhinoApp.WriteLine("Object count = {0}", f.Objects.Count);

Rhino doesn’t have ghosted or anonymous objects.

Also, a linetype index of -1 is just Rhino’s default linetype.

– Dale

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