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    Voronoi, convex hull, geometry modification toolset

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    • A Offline
      a4chitect
      last edited by

      please try this:

      windows - open command prompt and navigate to your sketchup\plugins\qhull
      (windows vista: it is easier to open qhull folder in windows explorer, press and hold shift and right-click anywhere inside empty space in qhull, choose 'Open Command Window Here')

      paste the following code 'qhull.exe TI points.txt v Qbb Qj o Fv' (without quotes) and press enter
      (paste works by clicking in the top left corner on the small black icon, choose edit>paste)

      let me know your results

      thanks

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      • majidM Offline
        majid
        last edited by

        dear a4chitetct , i did and here is the result ( i paste all the result in a text file and zipped)


        New Text Document (2).zip

        My inspiring A, B, Sketches book: https://sketchucation.com/shop/books/intermediate/2612-alphabet-inspired-sketches--inspiring-drills-for-architects--3d-artists-and-designers-

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        • A Offline
          a4chitect
          last edited by

          from the file you have attached, it is clear that the voronoi computation is all right, I have copied the following part

          3
          19 12 1
          -10.101 -10.101 -10.101
          69.50972188371688 213.9843863157402 423.5501981233883
          ...
          ...
          ...
          5 8 10 0 4 3
          6 9 11 0 13 15 18
          

          and pasted into an empty sketchup\plugins\qhull\qvoronoi.txt
          then imported using a modified voronoi.rb (attached) which doesn't run the computation it only builds geometry from the qvoronoi.txt

          I am attaching the result as a .skp file


          the result in sketchup


          modified voronoi (replace your current but keep the original since this is for debugging)

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          • N Offline
            nerz
            last edited by

            hello a4chitect

            excuse me for havn't said a word these days (a virus strike in my school..)
            i have tried and tried different ways but nothing gets better. the file voronoi.txt (and convex hull too) is not created when i run voronoi (or convex hull)

            well i don't know how to do to attach a file... sorry..
            i'll keep on trying on an other computer..

            thanks for your work !!

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            • CadFatherC Offline
              CadFather
              last edited by

              Hi A4chitect,

              is there any way to have the export points script output in meters?

              (great set of rubys by the way)

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              • M Offline
                minguinhirigue
                last edited by

                Can't get this work well. Seems to be some problem to read my points.txt file !?
                Command input :
                @unknownuser said:

                ...Sketchup 6\Plugins\Qhull\qhull.exe" TI points.txt v Qbb Qj o Fv

                Command output :
                @unknownuser said:

                qhull error: could not open file "points.txt".
                While executing: | qhull TI points.txt v Qbb Qj o Fv
                Options selected for Qhull 2003.1 2003/12/30:

                Could anybody help and or develop some direct and realtime approximate voronoi calculation in sketchup ? Like soap-skin-bubble plugin ?


                File from the debug.skp file given by a4chitect... Do not work with my qhull.exe ?

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                • Chris FullmerC Offline
                  Chris Fullmer
                  last edited by

                  There is another voronoi ruby script out there. And it seems to be much more reliable. I've never used either though.

                  Have you tried the onther one?

                  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

                    I even found the link to it:

                    http://forums.sketchucation.com/viewtopic.php?f=180&t=19040&st=0&sk=t&sd=a

                    Chris

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

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                    • TIGT Offline
                      TIG Moderator
                      last edited by

                      Chris
                      That links to qhull - the one that has the problems...

                      Looking at the points.txt file itself I see that each line has three space-separated numbers - I take these to be x y z values.
                      However, the first only has a pair !
                      3 13
                      try adding another value to that line ? say
                      3 13 0
                      The sets of other numbers are space separated
                      26.106198369 -27.800497953 0.0
                      Perhaps if they were comma separated it'd work ? Do a find+replace for " " to "," and see if that helps ???

                      Otherwise I'm stumped...

                      TIG

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                      • F Offline
                        ferenc0521
                        last edited by

                        This is not for Mac OSX is it?

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