sketchucation logo sketchucation
    • Login
    ℹ️ Licensed Extensions | FredoBatch, ElevationProfile, FredoSketch, LayOps, MatSim and Pic2Shape will require license from Sept 1st More Info

    [Plugin] Face Flattener 0.19

    Scheduled Pinned Locked Moved Plugins
    50 Posts 29 Posters 53.9k Views 29 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • GaieusG Offline
      Gaieus
      last edited by

      Bob, Zach,

      I have a script that creates a menu item "Remove unused edges" in the Edit menu (for the life I cannot locate the script anywhere to see the file name of it). Using the script it also deletes the top surface (so the order it deletes the lines must be wrong as well).

      I have noticed a couple of times that using it leads me to lose a coupleof faces (especially after complex, curved intersections).

      Gai...

      1 Reply Last reply Reply Quote 0
      • W Offline
        watkins
        last edited by

        Dear Gaieus,

        It is cleanup_model.rb.

        Regards,
        Bob

        1 Reply Last reply Reply Quote 0
        • GaieusG Offline
          Gaieus
          last edited by

          Ah, thanks a bunch, Bob! I have always wondered and couldn't figure out (I keep a fairly nice mess in my Plugins folder).

          Gai...

          1 Reply Last reply Reply Quote 0
          • RayOchoaR Offline
            RayOchoa
            last edited by

            You know what i don in order to get a 2d model is get the scale tool and type in .002 and then do that again by putting a line next to it and resizing again. then i just erase the lines i want after intersecting everything

            CaR DeSiGnS bY mE
            http://ray-ochoa.com

            1 Reply Last reply Reply Quote 0
            • R Offline
              rv1974
              last edited by

              ❗ Perfect solution: export-import 2D hidd.line mode dwg.
              Not sure it canbe implemented in .rb though

              1 Reply Last reply Reply Quote 0
              • F Offline
                Fletch
                last edited by

                RE: Face flattener - I'll give it a shot... thanks for sharing!

                Ray, and others, when wanting to export a flat model from SU to CAD format - don't forget the Automated 2D Output ruby! Then you can just re-import the .dwg file back into SU, and it will be flat.

                Fletch
                Twilight Render Cross-platform Plugin for SketchUp on PC or Mac

                1 Reply Last reply Reply Quote 0
                • Z Offline
                  zhuangsuph
                  last edited by

                  1 Reply Last reply Reply Quote 0
                  • wzfwzfwzfW Offline
                    wzfwzfwzf
                    last edited by

                    hehe,hello.

                    1 Reply Last reply Reply Quote 0
                    • fredo6F Offline
                      fredo6
                      last edited by

                      @cerevellum said:

                      Hi Ray and Bob,

                      This is something I've noticed while working on my flattening script, and I still haven't figured out why it happens. The simplest way of reproducing this is to draw a box, add a rectangle to the top surface and connect it with a line to the outer edge loop. When erasing one of the edges of the rectangle that was added, both faces disappear.

                      What you can try to possibly avoid this problem is to calculate all coplanar segments, not delete them, but instead put them in a list (or in the selection). Then, just delete the entities in the list (or in the selection):

                      
                      model.entities.erase_entities list_edges
                      #or
                      model.entities.erase_entities model.selection
                      
                      

                      It seems to work fine on your example, and on some more complex configurations, but I did not try in the general case.

                      Note: manually in Sketchup, what I would use is to select all coplanar segments, put them in a group and then just delete the group. It leaves all faces intact. Unfortunately, there is no method in Ruby to make a group or a component out of existing elements!

                      1 Reply Last reply Reply Quote 0
                      • Z Offline
                        zhuangsuph
                        last edited by

                        1 Reply Last reply Reply Quote 0
                        • M Offline
                          marne
                          last edited by

                          @unknownuser said:

                          Thanks Zack.
                          This could prove really useful for the bad AutoCad imports I sometimes get.

                          Yip, so true for me too 😕 . Very useful. Thanks for this script!

                          1 Reply Last reply Reply Quote 0
                          • F Offline
                            Fletch
                            last edited by

                            @cerevellum said:

                            The order of operations:

                            1. Select some geometry
                            2. Right click, select Flattening Script
                            3. Left click on a face (this decides the plane the geometry will project to)

                            This doesn't work for me at all. please test on attached scene.

                            1. select all the geometry on the lower plane
                            2. Right click, select Flattening Script
                            3. Left click on a face above

                            FlatteningTest.zip


                            flat-1-bug.jpg


                            flat-2-bug.jpg

                            Fletch
                            Twilight Render Cross-platform Plugin for SketchUp on PC or Mac

                            1 Reply Last reply Reply Quote 0
                            • C Offline
                              chango70
                              last edited by

                              This seem like a useful script, shame it is still on 0.19.

                              1 Reply Last reply Reply Quote 0
                              • cerevellumC Offline
                                cerevellum
                                last edited by

                                @Fletch
                                Hey, I took a look at the test model. The script doesn't work on curves yet. Basically, if you were to explode any curves it should work fine!

                                @chango70
                                Yeah, I stopped working on this script a while back (1 year?). Hopefully, I will be able to finish it up soon enough. Probably will ensure this script works inside Groups and works with curves as well.

                                Thanks! BTW, the original version of this had an arbitrary axis, something that could be useful as well. Perhaps the next steps are to rework the code to include this feature, or maybe to include a dialog box with several options to choose from?

                                1 Reply Last reply Reply Quote 0
                                • pilouP Offline
                                  pilou
                                  last edited by

                                  @Gaieus
                                  about the "Remove unused edges"
                                  It works fine only if you have first used "Remove inner faces" 😉

                                  Frenchy Pilou
                                  Is beautiful that please without concept!
                                  My Little site :)

                                  1 Reply Last reply Reply Quote 0
                                  • GaieusG Offline
                                    Gaieus
                                    last edited by

                                    IF you have inner faces. If edges on an outer face are there because they define inner faces, they certainly aren't "unused". In any case, you should (almost) never model with inner faces.

                                    Gai...

                                    1 Reply Last reply Reply Quote 0
                                    • pilouP Offline
                                      pilou
                                      last edited by

                                      @unknownuser said:

                                      In any case, you should (almost) never model with inner faces.

                                      😮
                                      Imagine that you build a "cuboïd snake" or any similar concepts with the Push Pull Tool + CTRL
                                      (that is very speedy practical building and other method don't really yet exist for that)
                                      My "remove inner faces" will be very useful at the end for after remove coplanar edges not wanted! 💚
                                      (here 5 visible (except "eyes & noze") before killing 😄


                                      snake.jpg

                                      Frenchy Pilou
                                      Is beautiful that please without concept!
                                      My Little site :)

                                      1 Reply Last reply Reply Quote 0
                                      • thomthomT Offline
                                        thomthom
                                        last edited by

                                        @cerevellum said:

                                        Hi Ray and Bob,

                                        This is something I've noticed while working on my flattening script, and I still haven't figured out why it happens. The simplest way of reproducing this is to draw a box, add a rectangle to the top surface and connect it with a line to the outer edge loop. When erasing one of the edges of the rectangle that was added, both faces disappear.

                                        [attachment=1:2xv3js9g]<!-- ia1 -->edgeFaceEraseExFinalA.jpg<!-- ia1 -->[/attachment:2xv3js9g]

                                        However, if you were to erase the edge that connects both edge loops first, then you can erase the edges of the inside rectangle just fine. It apparently has to do with the order in which you erase coplanar edges. Delete edges in the following order: edges connected to 0 faces go first, then edges connected to 1 face, and finally edges connected to 2 faces.

                                        [attachment=0:2xv3js9g]<!-- ia0 -->edgeFaceEraseExFinalB.jpg<!-- ia0 -->[/attachment:2xv3js9g]

                                        See ya,
                                        Zach

                                        This explains some of the oddities when I tried to write a script to remove co-planar lines. I found that existing some times didn't work - especially on messy triangulated stepped terrain imported from Max. I tried to write my own version - got pretty close, but all versions had some issues. But from this post - I got some new ideas I'd like to try.

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

                                        1 Reply Last reply Reply Quote 0
                                        • thomthomT Offline
                                          thomthom
                                          last edited by

                                          @cerevellum said:

                                          However, if you were to erase the edge that connects both edge loops first, then you can erase the edges of the inside rectangle just fine. It apparently has to do with the order in which you erase coplanar edges. Delete edges in the following order: edges connected to 0 faces go first, then edges connected to 1 face, and finally edges connected to 2 faces.

                                          [attachment=0:p7r2k6cj]<!-- ia0 -->edgeFaceEraseExFinalB.jpg<!-- ia0 -->[/attachment:p7r2k6cj]

                                          That line that connects the two squares has two items in it .faces array - both referring to the same face.

                                          I've also come across times when you have a face inside another face. They have one vertex that they share. All the edges in the inner face is also part of the outer face. Some weird cross loop. If you delete one of the edges of the inner face, you'll affect the outerface and it's disappear. It's one of them things that makes removing co-planar edges really hard.

                                          One of my versions has been to recreate the geometry - but even that didn't work perfectly.

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

                                          1 Reply Last reply Reply Quote 0
                                          • thomthomT Offline
                                            thomthom
                                            last edited by

                                            Here's a sample of such a loop. I just moved the vertex of the connecting line onto the outer edge. There are other cases when this happen as well.
                                            If you try to delete any of the edges of the internal face you'll also delete the outer face.


                                            Crossloop.png


                                            Crossloop.skp

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

                                            1 Reply Last reply Reply Quote 0
                                            • 1
                                            • 2
                                            • 3
                                            • 2 / 3
                                            • First post
                                              Last post
                                            Buy SketchPlus
                                            Buy SUbD
                                            Buy WrapR
                                            Buy eBook
                                            Buy Modelur
                                            Buy Vertex Tools
                                            Buy SketchCuisine
                                            Buy FormFonts

                                            Advertisement