LoopLab Help

[renderiza]

Hi, the following code is part of a plugin called LoopLab and I am seeking help in resolving an issue. Right now the tool can't select multiple loops and was wondering if anyone has an idea on how to solve this issue. Thanks in advance!

model = Sketchup.active_model
sel = model.selection
edges = sel.grep(Sketchup;;Edge)
#
use = edges.last
rerun = edges.last
#
run = true
stp1 = false
stp2 = false
#
skip = true
#
model.start_operation('LoopLab')
  #
  begin
  #
  edge = use
  faces = edge.faces
  v1 = edge.start
  v2 = edge.end
  v1_edges = v1.edges
  v2_edges = v2.edges
  #
  break if v1_edges.length > 4 || v2_edges.length > 4
  #
  v1_edges.to_a.each { |ne|
    if not ne.used_by? faces[0] and not ne.used_by? faces[1] and not sel.include?(ne)
      use = ne
      sel.add ne
      stp1 = false
      break 
    else
      stp1 = true
    end
  }
  #
  if skip == true
    skip = false
    next
  end
  #
  v2_edges.to_a.each { |ne|
    if not ne.used_by? faces[0] and not ne.used_by? faces[1] and not sel.include?(ne)
      use = ne  
      sel.add ne
      stp2 = false
      break
    else
      stp2 = true
    end
  }
  #
  if stp1 and stp2
    run = false
  end
  #
end while run
#
#
#
run = true
stp1 = false
stp2 = false
skip = true
#
begin
  #
  edge = rerun
  faces = edge.faces
  v1 = edge.start
  v2 = edge.end
  v1_edges = v1.edges
  v2_edges = v2.edges
  #
  break if v1_edges.length > 4 || v2_edges.length > 4
  #
  v1_edges.to_a.each { |ne|
    if not ne.used_by? faces[0] and not ne.used_by? faces[1] and not sel.include?(ne)
      rerun = ne
      sel.add ne
      stp1 = false
      break
    else
      stp1 = true
    end
  }
  #
  if skip == true
    skip = false
    next
  end
  #
  v2_edges.to_a.each { |ne|
    if not ne.used_by? faces[0] and not ne.used_by? faces[1] and not sel.include?(ne)
      rerun = ne
      sel.add ne
      stp2 = false
      break
    else
      stp2 = true
    end
  }
  #
  if stp1 and stp2
    run = false
  end
  #
  end while run
  #
model.commit_operation
#
Sketchup.send_action('selectSelectionTool;')

[Dan Rathbun]

Usually you hold the keyboard CTRL key to add items to the selection set.

[tt_su]

You can collect all the separate loop-segments from the selection and then treat them separately.

If you made the assumption that the user only selected one edge in each of the loops he/she wants selected then it's easier - as you just need to iterate each edge in selection and build a loop for each one.

But it could be that the user selected multiple segments of a loop, in which you would have to detect this as well. Or, thinking of it, you could just ignore the fact that some are connected, just build the loop anyway and make sure you don't process an edge that's already in a generated loop.