Merge groups

csharp

Hello.

It's possible merge two groups into one group via ruby? Thanks.

TIG

Yes.
If the two groups are in the active_entities context then
group2=group0.parent.entities.add_group([group0, group1])
will work - however, if they are not in the active_entities context if will Bugsplat! big time!!!
Adding any entities to a group directly will cause disasters IF you cross-thread the entities' contexts. So it's always safer to use this way - you can write a method to use it repeatedly...

def combine_groups(ents,group0,group1)
  d0=group0.entities.parent
  t0=group0.transformation
  d1=group1.entities.parent
  t1=group1.transformation
  group2=ents.add_group()
  g0=group2.entities.add_instance(d0,t0)
  g1=group2.entities.add_instance(d1,t1)
  ### remember the originals properties as needed
  l0=group0.layer
  m0=group0.material
  n0=group0.name
  d0=group0.description
  attrdicts0=g0.attribute_dictionaries
  g0.layer=l0
  g0.material=m0
  g0.name=n0
  g0.description=d0
  attrdicts0.each{|attrdict|
    name=attrdict.name
    attrdict.each_pair{|key,value|g0.set_attribute(name,key,value)}
  }if attrdicts0
  l1=group1.layer
  m1=group1.material
  n1=group1.name
  d1=group1.description
  attrdicts1=g1.attribute_dictionaries
  g1.layer=l1
  g1.material=m1
  g1.name=n1
  g1.description=d1
  attrdicts1.each{|attrdict|
    name=attrdict.name
    attrdict.each_pair{|key,value|g0.set_attribute(name,key,value)}
  }if attrdicts1
  ###
  group0.erase!
  group1.erase!
  ###
  return [g0, g1, group2]
end#def

The usage is then
ents=group0.parent.entities ### or any entities context required group0,group1,group2 = combine_groups(ents,group0,group1)
Where the references group0 and group1 are transferred to the new instances of the groups, and group2 is the combined group containing them both.
If you want the contents of those two groups to merge then simply add this after the combine_groups line of code
group0.explode group1.explode
The contents of the new group2 are the combined entities of the now defunct group0 and group1...

csharp

TIG thank you very much.