Selected entity question

Pixero

Short question.
Is:

Sketchup.active_model.active_entities[0]

the selected entity?

jiminy-billy-bob

No, these are the entities in the open group or component instance.

You want:

Sketchup.active_model.selection[0]

Class: Sketchup::Selection

A set of the currently selected drawing elements.

SketchUp Ruby API Documentation (ruby.sketchup.com)

Pixero

Thanks. That was what I suspected.
Now I need to find a way to do what I want to do from the selection.
A side question. What about getting the selected material?
Sketchup.active_model.materials[0] won’t do it then either I guess?

jiminy-billy-bob

That would be Sketchup.active_model.materials.current

TIG

That method gives you the current 'active' material in the model.
But... if you want to get a material from the currently selected entity, then you use:

mat = Sketchup.active_model.selection[0].material

However, you might be better off filtering the selection, until you get an entity of the kind you want... e.g.


face = Sketchup.active_model.selection.grep(Sketchup;;Face)[0]
mat = nil
mat = face.material if face

Where the first face in the selection returns its material, or nil...

Pixero

Thanks, I read in a older post somewhere, and I think it was by Thomthom, that there was a bug that could Bugsplat SU when using materials.current if there wasn't any materials in SU. Do you know if that still is an issue or if it has been fixed?

TIG

Why do you need to get the model.materials.current ?
You could pre-set it using model.materials.current = a_material
Having previously set a_material = model.materials["A_Name"]

You haven't really explained the full context......

Pixero

They are just for two small snippets that I will need some advise from Thomasz (Thea settings) to make them properly.
I'm just preparing for when he will have some time to look into it...