[REQUEST] Convert single instance components to groups

[jshal]

I was looking for quite while searching for the following problem:

Importing (Revit) DWG data into Sketchup creates a lot of single instance components. The trouble is that when copying multiple of these files together that Sketchup slows down to a crawl because it is trying to match components that are similar. Usually I end up with sketchup files with hundreds of single component instances. Sketchup works faster when these single instances are in fact groups, making copying between sketchup files way faster. Normally I explode the selected instance and group these again, but with hundreds of these, this is too cumbersome.

So what I need is the following:

1. select all single instance components within my current SketchUp file (or current selection)
2. convert these to standard groups

I think this is quite useful for anybody working with imported files and want to keep on working quick.

For number 2) I found the following code snippet from sdmitch (https://sketchucation.com/forums/viewtopic.php?f=323&t=17590&p=140679&hilit=single+instance+component#p623006)

@mod = Sketchup.active_model
@ent = @mod.active_entities
@sel = @mod.selection
@vue = @mod.active_view
cmps = @sel.grep(Sketchup;;ComponentInstance)
cmps.each{|ci|
 grp = @ent.add_group(ci)
 grp.name = ci.definition.name
 ci.explode
}
@mod.definitions.purge_unused

[highlight=#ffffbf:39rhwwt6]Does anybody know how to realize part 1?[/highlight:39rhwwt6]

Thanks in advance!

[TIG]

It's relatively straightforward...
Here's 1 AND 2 combined...
This code finds all components that have just one instance and makes a new group in place of the instance, containing its contents, using the same name/layer/material as the instance itself.
The now unused definitions are deleted.
It is one step undo-able

model=Sketchup.active_model
defns=model.definitions
model.start_operation("ci2gp",true)
defns.each{|defn|
  next if defn.group?
  next if defn.image?
  next unless defn.instances.length==1
  inst=defn.instances[0]
  name=defn.name
  layr=inst.layer
  matl=inst.material
  ents=inst.parent.entities
  tran=inst.transformation
  grp=ents.add_group()
  gents=grp.entities
  i=gents.add_instance(defn, tran)
  inst.erase!
  i.explode
  grp.name=name
  grp.layer=layr
  grp.material=matl
}
defns.purge_unused
model.commit_operation

[jshal]

Wow, TIG, you have saved my day(s) Big thanks!

[iMacThere4iAm]

@tig said:

It's relatively straightforward...

Sorry to dig up this old topic but your code above causes a bugsplat in Sketchup 2022. Any idea what could be the cause?

[TIG]

It's a snippet of old code but it should work OK.
It works for me on a PC - I don't have a suitable MAC to hand...
Nothing different in v2022 as far as I can see...

What exactly are you trying to do, are there any Ruby Console messages before the failure ?