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    How do you make plug-ins for sketchup

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    • Chris FullmerC Offline
      Chris Fullmer
      last edited by

      @remus said:

      give em some credit chris, i had to type 'selection' as well πŸ˜„

      Heh, I didn't notice that you switched it around to use the selection set instead of all entities. Well done πŸ˜„ Now make it smart enough to use the selection set if it exists, and if not, use all entities.

      Chris

      Lately you've been tan, suspicious for the winter.
      All my Plugins I've written

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      • B Offline
        BTM
        last edited by

        It probably got overrun by new posts, so here's my original question about translation

        my main issue (which I've been trying to figure out) is how to use the cursor to set the transformation, like the move tool does; click and drag. I thought I saw something on it once, but am still confused.

        Your last post, Chris: Ah, and that's easy.

        model = Sketchup.active_model
        if model.selection == true
        selection = model.selection
        else
        selection = model.active_entities
        end
        #  -  -  -  -  -  -  -  -  -  -  -  -
        selection.each { |entity|
        if entity.typename == "Face"
        entity.erase!
        end
        }
        

        ...well, sort of easy. It seems to be buggy, and deletes random faces, if anything is selected. πŸ˜•
        How do you put all the entities into an array again?

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        • R Offline
          remus
          last edited by

          just learnt an important lesson about using recursion in combination with a messagebox.

          model = Sketchup.active_model
          entities = model.selection
          
          entities.each { |e|
           if e.typename == "Curve"
           edgnum = e.count_edges
           UI.messagebox "edgnum.to_s"
           else
           UI.messagebox "Please select a curve"
           end
           }
          

          10 points if you can spot what'll happen (without running it!)

          http://remusrendering.wordpress.com/

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          • B Offline
            BTM
            last edited by

            it counts the edges of any selected curve, and displays them as a string, in a message box. If 20 curves were selected, then 20 different message boxes, with the amount of edges in each curve, is shown, one after another each time you click enter. πŸ˜‰

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            • R Offline
              remus
              last edited by

              Could well do, but it's worse than that...points still up for grabs.

              http://remusrendering.wordpress.com/

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              • R Offline
                remus
                last edited by

                Close enough, it will keep saying 'please select a curve' until you force quite SU, as it keeps going through the model.

                http://remusrendering.wordpress.com/

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                • B Offline
                  BTM
                  last edited by

                  oh, I forgot to mention that if no curve is selected, it says the message "Please select a curve".

                  Oh, and I'm pretty sure you wrote part of your code wrong, which could cause... hmmm.... I don't know... O.K., I'm testing it πŸ˜‰

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                  • B Offline
                    BTM
                    last edited by

                    No, just tested it, I think it says it once for every edge in the selected curve/curves.

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                    • R Offline
                      remus
                      last edited by

                      thats interesting, more experimenting is needed!

                      edit: perhaps in the morning. Its getting a bit late now πŸ˜‰

                      http://remusrendering.wordpress.com/

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                      • B Offline
                        BTM
                        last edited by

                        model = Sketchup.active_model
                        selection = model.selection
                        #  -  -  -  -  -  -  -  -  -  -  -  -
                           selection.each { |entity|
                              if entity.typename == "Face"
                              UI.openURL "http://www.sketchucation.com/forums/scf/"
                           end
                        }
                        

                        πŸ˜‰

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                        • Chris FullmerC Offline
                          Chris Fullmer
                          last edited by

                          Well, this is not the problem in question, but a selection will not contain an entity "Curve" for one thing. It contains edges though, and they might belong to a curve. So you can test if e.typename == "Edge" and then if true test if e.curve != false.

                          (And this gets back to what Adam was bringing up and Jim also talked about in another post. I think instead of testing if each entity is an edge (which is how I still do it), perhaps test each entity if its part of a curve. (I don't know the best code to do that, but its something to think about).)

                          I think that a selection can only hold DrawingElements (which does not include curves). I'm not sure why though.

                          Chris

                          Lately you've been tan, suspicious for the winter.
                          All my Plugins I've written

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                          • B Offline
                            BTM
                            last edited by

                            It probably got overrun by new posts, so here's my original question about translation

                            my main issue (which I've been trying to figure out) is how to use the cursor to set the transformation, like the move tool does; click and drag. I thought I saw something on it once, but am still confused.

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                            • Chris FullmerC Offline
                              Chris Fullmer
                              last edited by

                              Oh, and BTM, in my opinion, as a fairly new Ruby scripter, making any script that interacts with the mouse is a bit challenging, especially at first. It requires making a class tool, and instantiating the tool, and making good use of methods, including pre-defined methods from the API. I'll try to write up a template for creating a new tool. But that is really a tutorial all of its own. (BTW, I said before I was working on a tutorial for beginning ruby, and its been put on hold because the methods for wiritng a tutorial for SketchUcation are currently not working....so I have to wait for the management to fix it.)

                              If possible, I would avoid the mouse controlling the transform idea.

                              Chris

                              Lately you've been tan, suspicious for the winter.
                              All my Plugins I've written

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                              • Chris FullmerC Offline
                                Chris Fullmer
                                last edited by

                                To be more specific, I don't understand how to implement the inferencing system of SU. I have a sfew scripts that use inferencing, but I literally copied and pasted portions of those scripts from the query tool example that comes with SU. If you want to being working with inferencing, check out that tool.

                                Lately you've been tan, suspicious for the winter.
                                All my Plugins I've written

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                                • J Offline
                                  Jim
                                  last edited by

                                  @adamb said:

                                  [Slightly OT]

                                  I've always been very careful to use Object#kind_of? rather than Object#class so that code works with any derived classes too. (Rather than just testing for an explicit class).

                                  Good idea? Bad idea?

                                  Adam

                                  It's good when you explode a Group to reject things are not Drawinglements. Sometimes I get Loops in the exploded collection of entities.

                                  
                                  ents = group.explode
                                  ents.reject!{ |e| unless e.is_a? Sketchup;;Drawingelement }
                                  
                                  

                                  Hi

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                                  • J Offline
                                    Jim
                                    last edited by

                                    @chris fullmer said:

                                    (And this gets back to what Adam was bringing up and Jim also talked about in another post. I think instead of testing if each entity is an edge (which is how I still do it), perhaps test each entity if its part of a curve. (I don't know the best code to do that, but its something to think about).)
                                    Chris

                                    Look again at the Selection class, there are a couple methods that can help determine of a selection contains a Curve:

                                    .is_curve? and .single_object?

                                    Hi

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                                    • Chris FullmerC Offline
                                      Chris Fullmer
                                      last edited by

                                      Here's an amusing illustration of what I mean when I say that I have avoided using the mouse in my scripts because it is complex (for me). Here's my scripts in the order that I've written them:

                                      Loose to groups - no mouse interaction.
                                      Random Painter - no mouse interaction
                                      Greeble 1 and 2 - no mouse interaction
                                      Color by Z - no mouse interaction
                                      Onscreen Display - my first mouse interaction (inferencing) The code is 95% from the query tool. I still don't undesratnd how parts of it work πŸ˜†
                                      Select Lines by Length - no mouse interaction
                                      Three Line Tools - mouse interaction (inferencing, still copied from query)
                                      Components onto Faces - no mouse interaction
                                      Perpendicular Face Tools - mouse interaction (inferencing, still copied from query)
                                      Scale and Rotate Multiple - no mouse interaction
                                      Label Open Faces - no mouse interaction
                                      Shape Bender - Mouse interaction written entirely on my own (select different objects with the mouse), but no inferencing

                                      Anyhow, I've written about 12 scripts I've released and all of them avoid mouse input like the plague. The few that do allow for mouse input, the code is largely borrowed from the query tool, and still I don't understand how a few things in the code work πŸ˜„

                                      Chris

                                      But don't let my inabilities stop you by any means. If you want to learn it, go for it. It will probably make for lots of great threads about implementing inferencing, which the forum could use I think!

                                      Lately you've been tan, suspicious for the winter.
                                      All my Plugins I've written

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                                      • B Offline
                                        BTM
                                        last edited by

                                        Where do I find this "query tool"? The closest thing i can find is comptr.h, and 2 sketchyphysics files

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                                        • Chris FullmerC Offline
                                          Chris Fullmer
                                          last edited by

                                          Jim, I'm a little confused. I thought you would be able to add a curve object to the selection set. But it returns this error:

                                          (eval);6;in β€˜add’; wrong argument type (expected Sketchup;;Entity or Array of Sketchup;;Entity)
                                          

                                          But the API says that "Curve" is a subclass of the Entity class, just like DrawingElement. Why can't I add a curve object directly to the selection?

                                          Chris

                                          Lately you've been tan, suspicious for the winter.
                                          All my Plugins I've written

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                                          • Chris FullmerC Offline
                                            Chris Fullmer
                                            last edited by

                                            Oh yea, the quesry tool is kind of hiding. It is in the utilities folder, and inside the utilitiestools.rb file. Starting on line 55.

                                            Inside of SU it is under Tools > Utilities > Query Tool

                                            But it only does point inference. It does not do all the inferencing you will want - like locking to an axis or anything with axex. Only single points. But its helpful for that,

                                            Chris

                                            Lately you've been tan, suspicious for the winter.
                                            All my Plugins I've written

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