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    • thomthomT Offline
      thomthom
      last edited by

      Cubificator?

      I was thinking it might be usable to repair troublesome model imported from CAD drawings. Occasionally I run into models where splitting a face with an edge results in duplicate faces. I suspect its due to some precision errors. Maybe if the vertices where adjusted to fit to a finely grained 3D grid the troubles would go away... ?

      Thomas Thomassen β€” SketchUp Monkey & Coding addict
      List of my plugins and link to the CookieWare fund

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      • R Offline
        rossthompson
        last edited by

        ThomThom thanks so much for your support! I have had a go at running your test module. My understanding is that it should shift the points in the active selection to a 0.25m grid as specified in the code.

        However I am having problems running the module. I have attempted to add it to the tools menu as below, but I am not 100% sure how to 'call' the routine. Appologies if I'm being an idiot - I am new to ruby scripting!

        
            module GridSnap
        
              def self.round_point( point, tolerance )
                grid_pt = point.to_a.map { |n|
                  b = ( n / tolerance ).to_i * tolerance
                  r = n % tolerance
                  (r > tolerance / 2) ? b + tolerance ; b
                }
                Geom;;Point3d.new( *grid_pt )
              end
              
              def self.test_it
                pt = Geom;;Point3d.new( 3.976879.m, 3.760209.m, 1.002568.m )
                tolerance = 0.25.m
                grid_pt = self.round_point( pt, tolerance )
                
                puts "Original; #{pt}"
                puts "Tolerance; #{tolerance}"
                puts "Grid Point; #{grid_pt}"
              end
              
              def self.adjust_vertices( tolerance = 0.25.m )
                model = Sketchup.active_model
                vertices = []
                # Collect vertices.
                for e in model.active_entities
                  vertices << e.vertices if e.is_a?( Sketchup;;Edge )
                end
                vertices.flatten!
                vertices.uniq!
                # Calculate grid adjustments.
                vectors = []
                entities = []
                for vertex in vertices
                  pt = vertex.position
                  grid_pt = self.round_point( pt, tolerance )
                  vector = pt.vector_to( grid_pt )
                  next unless vector.valid?
                  entities << vertex
                  vectors << vector
                end
                # Apply transformations
                model.active_entities.transform_by_vectors( entities, vectors )
                puts "#{entities.size} adjusted to grid."
              end
        
            end
        
        # Menu Entry;
        
        UI.menu("Tools").add_item("GridSnap") { GridSnap } if not file_loaded?("GridSnap.rb") 
        file_loaded("GridSnap.rb")
        
        
        
        

        I think this could be a very useful tool for cleaning many types of imported geometry.

        Ross

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        • Dan RathbunD Offline
          Dan Rathbun
          last edited by

          @thomthom said:

          Cubificator?

          Polyhedronizer ?

          Orthogonizer ?

          Orthographizer ?

          OrthograFixer ?

          πŸ˜†

          I'm not here much anymore.

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          • TIGT Offline
            TIG Moderator
            last edited by

            In case TT is away...
            Inside the code making the menu use
            {GridSnap**.adjust_vertices(1.cm)**}
            It affects the whole model.
            This example uses 1cm grid
            Use another 'tolerance' if desired...
            If you use () it defaults to 0.25m anyway...
            It's only some example code and could be better assembled into something working on a selection with warnings and an 'undo' ???

            TIG

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            • TIGT Offline
              TIG Moderator
              last edited by

              Not sure this reduced poly rock is so good ?Cuboidalizer.PNG'Cuboidalizer' is another name idea too... that or 'Discombobulizer' 😲

              TIG

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              • Dan RathbunD Offline
                Dan Rathbun
                last edited by

                Here's a beta version with an inputbox and undo operation...

                It seemed to only change a cubes vertices in the Z axis ??

                module GridSnap
                
                  @@last_tolerance = 0.25.m
                
                  class << self # PROXY CLASS
                
                    def round_point( point, tolerance )
                      grid_pt = point.to_a.map { |n|
                        b = ( n / tolerance ).to_i * tolerance
                        r = n % tolerance
                        (r > tolerance / 2) ? b + tolerance ; b
                      }
                      Geom;;Point3d.new( *grid_pt )
                    end
                   
                    def test_it
                      pt = Geom;;Point3d.new( 3.976879.m, 3.760209.m, 1.002568.m )
                      tolerance = @@last_tolerance
                      grid_pt = round_point( pt, tolerance )
                     
                      puts "Original; #{pt}"
                      puts "Tolerance; #{tolerance}"
                      puts "Grid Point; #{grid_pt}"
                    end
                   
                    def adjust_vertices( tolerance = @@last_tolerance )
                      model = Sketchup.active_model
                      vertices = []
                      # Collect vertices.
                      for e in model.active_entities
                        vertices << e.vertices if e.is_a?( Sketchup;;Edge )
                      end
                      vertices.flatten!
                      vertices.uniq!
                      # Calculate grid adjustments.
                      vectors = []
                      entities = []
                      for vertex in vertices
                        pt = vertex.position
                        grid_pt = round_point( pt, tolerance )
                        vector = pt.vector_to( grid_pt )
                        next unless vector.valid?
                        entities << vertex
                        vectors << vector
                      end
                      # Apply transformations
                      model.active_entities.transform_by_vectors( entities, vectors )
                      puts "#{entities.size} adjusted to grid."
                    end
                    
                    def menu_command()
                      title   = 'Adjust Vertices'
                      prompt  = 'Tolerance'
                      default = @@last_tolerance
                      
                      result = UI.inputbox([prompt],[@@last_tolerance],title) rescue @@last_tolerance
                      if result
                        begin
                          ###
                          Sketchup.active_model.start_operation("#{title} (#{Sketchup.format_length(result[0])})")
                          #
                          adjust_vertices( result[0] )
                          #
                          ###
                          Sketchup.active_model.commit_operation()
                        rescue
                          Sketchup.active_model.abort_operation()
                        else
                          @@last_tolerance = result[0]
                        end
                      end
                    end
                
                  end # PROXY CLASS
                  
                  #{# RUN ONCE
                  #
                  unless file_loaded?("GridSnap.rb")
                   
                    # Menu Entry;
                    UI.menu("Tools").add_item("GridSnap") { menu_command() }
                    
                    file_loaded("GridSnap.rb")
                  
                  end #}
                
                end # module
                
                
                

                I'm not here much anymore.

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                • thomthomT Offline
                  thomthom
                  last edited by

                  @dan rathbun said:

                  It seemed to only change a cubes vertices in the Z axis ??

                  Should apply to X,Y and Z... Seemed to work correctly in my quick test...

                  Thomas Thomassen β€” SketchUp Monkey & Coding addict
                  List of my plugins and link to the CookieWare fund

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                  • daikuD Offline
                    daiku
                    last edited by

                    @dan rathbun said:

                    @thomthom said:

                    Cubificator?

                    Polyhedronizer ?

                    Orthogonizer ?

                    Orthographizer ?

                    OrthograFixer ?

                    πŸ˜†

                    It's like Autotune for cad! They can make you sound good, even if you can't sing.
                    If you are editing digital music, and you need to make the drum beats perfect, you can move the beats to the nearest sixteenth note, or whatever. It's call "quantizing".

                    Clark Bremer
                    http://www.northernlightstimberframing.com

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                    • Dan RathbunD Offline
                      Dan Rathbun
                      last edited by

                      @daiku said:

                      It's called "quantizing".

                      TRUE !!

                      Restriction to discrete values (or multiples thereof,) rather than any values in the set of possibles (real numbers, in this case.)

                      So.. the long term:
                      Vertex Positional Quantization

                      The short form:
                      Vertex to Grid

                      I'm not here much anymore.

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                      • R Offline
                        rossthompson
                        last edited by

                        Hi guys, I have had a play with Dan's Beta version and for me it works really well. The verticies are adjusted in X,Y and Z directions and the undo function works fine!

                        The only slight problem: it adjusts all the geometry in the model, rather than just the active selection. The original module just adjusted the active selection.

                        Any ideas?

                        Again thanks for the support - this script should be a realy time saver!

                        Ross

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                        • Dan RathbunD Offline
                          Dan Rathbun
                          last edited by

                          Well .. I did not think I changed the context of what Thomas' code did... just tried to wrap the code properly and added the menu_command() method to handle an inputbox.

                          I'll have a look at it.. again.

                          (And it's not really MY edition just because I added the inputbox.. it's still Thomas' thing.)

                          I'm not here much anymore.

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                          • Dan RathbunD Offline
                            Dan Rathbun
                            last edited by

                            OK... added support for a selection. (Pssst! ... there was no selection support from the beginning Ross.)

                            This utility should probably be wrapped in Thomas' toplevel author module, and reside below his author directory in some manner.

                            I'll leave those choices up to him, and when he releases version 1.0.0, we'll delete these beta versions in this thread and put in a link to the release thread.

                            #  ==========================================================================
                            #  GridSnap.rb
                            #  --------------------------------------------------------------------------
                            #  by Thomas Thomassen
                            #
                            #  --------------------------------------------------------------------------
                            #  THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
                            #  IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                            #  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                            #  --------------------------------------------------------------------------
                            #
                            #  This utility quantizes the vertex locations, of the current selection,
                            #    of the model, or just the current context, to a 3D grid, whose interval
                            #    can be set via a popup inputbox.
                            #
                            #  --------------------------------------------------------------------------
                            #  Revisions;
                            #
                            #   0.1.0 ; 2012-03-26 ; by Thomas Thomassen
                            #   |
                            #   initial beta release
                            #
                            #   0.2.0 ; 2012-03-26 ; by Dan Rathbun
                            #   |
                            #   + Added menu_command() method for inputbox and undo operation.
                            #
                            #   0.3.0 ; 2012-03-28 ; by Dan Rathbun
                            #   |
                            #   + Revised the menu_command() method to pass a selection set to the
                            #       adjust_vertices() method as a 2nd argument.
                            #
                            #  ==========================================================================
                            
                            module GridSnap
                            
                              @@last_tolerance = 0.25.m
                            
                              class << self # PROXY CLASS
                            
                                def round_point( point, tolerance )
                                  grid_pt = point.to_a.map { |n|
                                    b = ( n / tolerance ).to_i * tolerance
                                    r = n % tolerance
                                    (r > tolerance / 2) ? b + tolerance ; b
                                  }
                                  Geom;;Point3d.new( *grid_pt )
                                end
                               
                                def test_it
                                  pt = Geom;;Point3d.new( 3.976879.m, 3.760209.m, 1.002568.m )
                                  tolerance = @@last_tolerance
                                  grid_pt = round_point( pt, tolerance )
                                 
                                  puts "Original; #{pt}"
                                  puts "Tolerance; #{tolerance}"
                                  puts "Grid Point; #{grid_pt}"
                                end
                               
                                def adjust_vertices( tolerance = @@last_tolerance, ents = nil )
                                  model = Sketchup.active_model
                                  vertices = []
                                  # determine the context;
                                  ents = model.active_entities() if ents.nil?
                                  # Collect vertices.
                                  for e in ents #model.active_entities
                                    vertices << e.vertices if e.is_a?( Sketchup;;Edge )
                                  end
                                  vertices.flatten!
                                  vertices.uniq!
                                  # Calculate grid adjustments.
                                  vectors = []
                                  entities = []
                                  for vertex in vertices
                                    pt = vertex.position
                                    grid_pt = round_point( pt, tolerance )
                                    vector = pt.vector_to( grid_pt )
                                    next unless vector.valid?
                                    entities << vertex
                                    vectors << vector
                                  end
                                  # Apply transformations
                                  model.active_entities.transform_by_vectors( entities, vectors )
                                  puts "#{entities.size} adjusted to grid."
                                end
                                
                                def menu_command()
                                  title   = 'Adjust Vertices'
                                  prompt  = 'Tolerance'
                                  default = @@last_tolerance
                                  
                                  result = UI.inputbox([prompt],[@@last_tolerance],title) rescue @@last_tolerance
                                  if result
                                    model = Sketchup.active_model
                                    begin
                                      ###
                                      model.start_operation("#{title} (#{Sketchup.format_length(result[0])})")
                                        #
                                        if model.selection.empty?
                                          adjust_vertices( result[0] )
                                        else
                                          adjust_vertices( result[0], model.selection.to_a() )
                                        end
                                        #
                                      model.commit_operation()
                                      ###
                                    rescue
                                      model.abort_operation()
                                    else
                                      @@last_tolerance = result[0]
                                    end
                                  end
                                end
                            
                              end # PROXY CLASS
                              
                              #{# RUN ONCE
                              #
                              unless file_loaded?("GridSnap.rb")
                               
                                # Menu Entry;
                                UI.menu("Tools").add_item("GridSnap") { menu_command() }
                                
                                file_loaded("GridSnap.rb")
                              
                              end #}
                            
                            end # module
                             
                             
                            

                            I'm not here much anymore.

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                            • V Offline
                              VertexMover
                              last edited by

                              Is there an easy way to have it go through the Outliner list and open each model group and snap those corners to the grid?
                              What would need changed in the script so that it would snap all visible geometry to the grid, Without having to manually select and open each group?

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                              • Dan RathbunD Offline
                                Dan Rathbun
                                last edited by

                                @dan rathbun said:

                                This utility should probably be wrapped in Thomas' toplevel author module, and reside below his author directory in some manner.

                                I'll leave those choices up to him, and when he releases version 1.0.0, we'll delete these beta versions in this thread and put in a link to the release thread.

                                It would need to iterate the model's definition list, changing those that have instances.

                                But I'm not sure if it is really safe to change entities collections outside the current context?

                                PM'ing TT

                                I'm not here much anymore.

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                                • tt_suT Offline
                                  tt_su
                                  last edited by

                                  @dan rathbun said:

                                  But I'm not sure if it is really safe to change entities collections outside the current context?

                                  That should be ok. One just need to keep in mind that the current open context apply a transformation that affect 3d points.

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                                  • Dan RathbunD Offline
                                    Dan Rathbun
                                    last edited by

                                    Ok.. but are ya gonna repost under TT_GripSnap or whatever? (I had said we'd remove the code blocks above and replace with Store links when done.)

                                    I'm not here much anymore.

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                                    • thomthomT Offline
                                      thomthom
                                      last edited by

                                      This wasn't something I ever planned to publish. It was just a code snipped posted for anyone to grab.

                                      Thomas Thomassen β€” SketchUp Monkey & Coding addict
                                      List of my plugins and link to the CookieWare fund

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