Select all in layer

[T.M]

Hi everyone,

I was wondering if it was possible to select all objects in a given layer in code, without having to pre-select an object in the same layer?

I know it's possible through various plugins to add to the selection all the objects that are in the same layer as the selected one, but I would like to do it without having to make this pre-selection.

Thanks for your help!

[TIG]

All you need is a reference to the required layer - that's all you get from the preselected object with layer=object.layer in any case.
So if you know its name (e.g. "MyLayer") then you can use xlayer=Sketchup.active_model.layers["MyLayer"].
Now you can select all active entities that share that layer with
Sketchup.active_model.selection.clear Sketchup.active_model.active_entities.each{|e|Sketchup.active_model.selection.add(e) if e.layer==xlayer}
or alternatively do it by layer name directly [comparing strings is probably slower]
Sketchup.active_model.selection.clear Sketchup.active_model.active_entities.each{|e|Sketchup.active_model.selection.add(e) if e.layer.name=="MyLayer"}
etc etc...

[T.M]

Thanks a lot that was helpful!

[thomthom]

@tig said:

comparing strings is probably slower

It is. Much slower! At all times avoid string comparisons if possible.