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    [Plugin] Import STL files

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    • C Offline
      casey344
      last edited by

      Thanks for offering to help.

      You should be able to pick it up here ...

      Link to file:
      https://download.yousendit.com/bVlCSXR3Mm1wTVYzZUE9PQ

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      • Didier BurD Offline
        Didier Bur
        last edited by

        AAARGGHHHH 71 Mb !
        Downloading it now, but I guess the file is too big for SU...

        DB

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        • C Offline
          casey344
          last edited by

          Sorry, not my doing. 😕

          Manufacturer sent it that way.

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          • J Offline
            jwelin
            last edited by

            Thanks for the work on this plugin. I have a three questions:

            Is there a limit to the level of nested groups/components it exports?

            The exported STL seems to be incompatible with some applications. Rhino sees the geometry, for instance, while Magics does not. Also an SU2stl generated stl, opened in Rhino and resaved as an STL is much smaller in file size. Would you like to see examples?

            Is there a way to call this plugin from another? I have a need to batch export.

            John Welin
            architectural model maker
            Chicago, USA

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            • Didier BurD Offline
              Didier Bur
              last edited by

              Hi,

              @unknownuser said:

              The exported STL seems to be incompatible with some applications

              There are several STL formats which slightly differ in their syntax. The one I have choosen to export is the most standard one, as defined here for instance:
              http://www.gom.com/CONTAINER/files/sp_stl_en.pdf
              or here:
              http://mech.fsv.cvut.cz/~dr/papers/Lisbon04/node2.html
              Maybe some applications do not support every kind of STL ?

              @unknownuser said:

              an SU2stl generated stl, opened in Rhino and resaved as an STL is much smaller in file size

              I don't have Rhino, but I suppose that it saves an STL in the binary format, while my script saves it in ASCII (text), which is 8 times bigger (average). You can see the same differences between an ascii dxf and a binary dxf (dxb) for instance.

              @unknownuser said:

              Is there a limit to the level of nested groups

              No. Not tested here but as a recursive method is involved, there should be no limits.
              Components are NOT supported, groups are.

              @unknownuser said:

              Is there a way to call this plugin from another?

              Unfortunately no.

              Regards,

              DB

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              • thomthomT Offline
                thomthom
                last edited by

                @didier bur said:

                @unknownuser said:

                Is there a limit to the level of nested groups

                No. Not tested here but as a recursive method is involved, there should be no limits.
                Components are NOT supported, groups are.

                I found that recursive methods might cause SU to bugsplat. http://www.sketchucation.com/forums/scf/viewtopic.php?f=180&t=15585&p=120726 I had a method that looped over entities to find connected entities which used a recursive method. Had to change it to an iterative method.

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

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                • Didier BurD Offline
                  Didier Bur
                  last edited by

                  @unknownuser said:

                  I found that recursive methods might cause SU to bugsplat.

                  Bad news 😞

                  DB

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                  • thomthomT Offline
                    thomthom
                    last edited by

                    Mind you, it happens when you do many recursions. When crawling geometry you quickly end up with hundreds iterations. So if the script never goes that deep you're ok. But it's something to be aware of.

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

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                    • N Offline
                      NewOne
                      last edited by

                      When exporting STL from SolidWorks, here is an option to put all geometry in same file or to create separate file for each part. Mr. Didier Bur, could this script to be modified in a manner that allows multiple file selection and each geometry to be made group (or component if there are more identical parts) ? Or to specify a folder where stl part files are located?

                      Thank you.

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                      • Didier BurD Offline
                        Didier Bur
                        last edited by

                        Dropped into the to-do list 😉

                        DB

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                        • GaieusG Offline
                          Gaieus
                          last edited by

                          bump
                          (sorry Dider - no practical reason just testing some moderation stuff)

                          Gai...

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                          • S Offline
                            stefkeB
                            last edited by

                            Minor improvement:

                            On line 54 you call the "openpanel" method when exporting. This should be "savepanel", so the user gets the correct dialog displayed. Still works on Windows but not on OSX, where you need to point to an already existing file.

                            Also, the default "." file location could be replaced with ENV['USER'] or ENV['HOME'] or preferably the current file folder, as to make it more convenient. With 'USER' it works much better for me on OSX.

                            (I refer to the unscrambled file, obviously, not the compacted one -- maybe the reason why people think it is a binary file)

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                            • Didier BurD Offline
                              Didier Bur
                              last edited by

                              Hi,
                              @stefkeB: I'm using openpanel when importing, and savepanel when exporting. So I don't understand what you're talking about, propably you have an old version, because the latest one is v1.3. (Nov 2009) and is scrambled in a RBS file (so unreadable).

                              DB

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                              • thomthomT Offline
                                thomthom
                                last edited by

                                I've been looking around at the various ruby based importers for SketchUp and I see that no one uses the Importer class. If this class is used the importer can be found in the native import list which would be very nice.
                                http://code.google.com/apis/sketchup/docs/ourdoc/importer.html

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

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                                • charly2008C Offline
                                  charly2008
                                  last edited by

                                  Hi Didier,

                                  I have tried the tool in Sketchup 8. The Unit support appears and I can choose my unit but then nothing happens. I've attached the stl files which I downloaded from Internet.

                                  Charly


                                  knot.zip


                                  brain-gear.zip

                                  He who makes no mistakes, makes nothing

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                                  • Didier BurD Offline
                                    Didier Bur
                                    last edited by

                                    Hi Charly,
                                    Your files are binary STL files. The script cannot read such files, but only ASCII STL format.
                                    You can convert binary STL's to ASCII with Meshlab (free) for instance.
                                    Regards,

                                    DB

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                                    • charly2008C Offline
                                      charly2008
                                      last edited by

                                      Hi Didier,

                                      Thank you for the explanation. I learned something more to it.

                                      Charly

                                      He who makes no mistakes, makes nothing

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                                      • D Offline
                                        davidheim1
                                        last edited by

                                        Didier,
                                        I just downloaded the STL Export/Import plug-in on my Mac, but I can't make it work. It asks me for the name of a file to export, but won't ever let me export anything. What am I missing? Can you provide a brief explanation of how to make the export function work?
                                        Many thanks,
                                        David Heim

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                                        • mariochaM Offline
                                          mariocha
                                          last edited by

                                          @davidheim1 said:

                                          Didier,
                                          It asks me for the name of a file to export to, but won't ever let me export anything.
                                          David Heim

                                          Same here. It happens with the one loaded from SketchUcation store.
                                          But the one on CRAI Ruby depot, loaded the old way, manually, works.

                                          %(#008000)[Mario C.
                                          Every rule has exceptions, but some.]

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                                          • thomthomT Offline
                                            thomthom
                                            last edited by

                                            I recommend that anyone importing or exporting STL files in SketchUp use the open source plugin that SketchUp released: http://extensions.sketchup.com/en/content/sketchup-stl

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

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