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[Plugin]ArcCurve-set_segments.rb & changearcsegments 130830

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  • T Offline
    TIG Moderator
    last edited by 22 Mar 2012, 12:44

    It doesn't even use ArcCurveTests.rb or mention it in its code - in fact in earlier posts [in this thread] you are recommended to remove that very file from your Plugins folder, because changes to the API have meant that it might clash and updates of this tool no longer need it anyway.
    So it is not 'required' by the recent versions of this script...
    Your error message leads me to think that you have an old version of the tool loading...
    Are you sure you have got the latest one in the Plugins folder? Windows Vista/Win7 can 'play tricks' if you don't have full access rights to the Plugins folder - it looks like you have added/updated a file/subfolder... but there's a 'Compatibility Files' button added to the folder's window-bar and they have actually gone into a side folder, IF you haven't got full security access rights to a folder [right-click context-menu Properties > Security]

    Here's the latest version http://forums.sketchucation.com/viewtopic.php?p=158903#p158903
    It has the Plugins menu item added to the code as discussed a few posts back...
    Download the latest file from this link.
    It should make a Plugins menu item which opens a dialog into which you type the number of arc segments required to process all selected arcs/circles...

    TIG

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    • T Offline
      theotses
      last edited by 5 May 2013, 21:29

      Hi!

      I downloaded the plugin and istalled it. I have a big drawing with many arcs and is nearly impossible to select them all. So i select the whole drawing as i imported it and then i use the plugin. But the plugin works only with some of the arcs and the others remain with the default number of segments.

      How can i use the plugin on all the arcs?

      Thank you in advance.

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      • T Offline
        TIG Moderator
        last edited by 6 May 2013, 07:55

        SketchUp's Arcs/Circles can have their 'segmentation' set as they are made OR later on by using 'Entity Info', OR bu using this tool.
        BUT Arcs that have been scaled, exploded into edges OR are now incorporated into 3d geometry [extrusions etc] are never changeable.
        So if you can't change your Arc's segmentation using 'Entity Info', then you can't change it with anything else either: its properties have been fixed by your earlier actions.

        TIG

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        • T Offline
          theotses
          last edited by 6 May 2013, 08:24

          I can change the segmentation from entity info but the arcs are too many. So I tried to select the whole drawing and change the segmentation with the tool but only few of the arcs got the segments I wanted.

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          • T Offline
            TIG Moderator
            last edited by 6 May 2013, 09:01

            Wireframe mode will avoid picking faces, then select-by-fence, missing out anything that is obviously not an edge/curve...
            Any errors in the Ruby Console ?

            TIG

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            • T Offline
              theotses
              last edited by 6 May 2013, 12:02

              Thank you for your instant replies.

              I don't have any faces in my model. I don't really understand what you mean with the fence selection. (This is my first model in SketchUp 😳 )

              I don't get any errors at all. I just select all the lines and arcs (because i said in the first post that it is impossible to select every arc with clicks), then i use the plugin and i set the desired number of segments. Unfortunately not all the arcs get the number of segments I set in the plugin dialog box.

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              • T Offline
                TIG Moderator
                last edited by 6 May 2013, 12:48

                Can you attach your SKP to a post so we can see what's up...

                TIG

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                • T Offline
                  theotses
                  last edited by 11 May 2013, 22:20

                  Thank you for your will to help me. As I understood the plugin can handle max 100 arcs at a time. I partially selected the whole model and everything was ok!

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                  • T Offline
                    TIG Moderator
                    last edited by 30 Aug 2013, 09:54

                    Slight update - rev 'a' - http://sketchucation.com/forums/viewtopic.php?p=158903#p158903
                    ArcCurveTes.rb added for compatibility with v7 etc...

                    TIG

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                    • M Offline
                      mbastian
                      last edited by 17 Jun 2016, 19:58

                      First of all: I am NOT a programmer, so there is ZERO error handling on this quick-and dirty script. I had tried TIG's solution, but did not work on my DWG because some of the arcs would "clip" others as they were rebuilt by the script.

                      So I wrote this small routine to:

                      • loop through imported AutoCAD entities.
                      • select curves and group them (individually)
                      • create a more refined clone of the curve (the number of segments is controlled by two parameters. See script)
                      • Delete the original curve.

                      Anyone is welcome to turn this snippet into something better and more reusable.

                      Best,
                      Marcos.


                      theModel = Sketchup.active_model
                      #selEntities = theModel.selection

                      theModel.selection.clear
                      allEntities = theModel.entities

                      Collect user values:

                      prompts = ["Minimum number of segments:", "Minimum Segment Length:"]
                      defaults = [36, 10]
                      input = UI.inputbox(prompts, defaults, "Enter Desired Settings")

                      #set minimum length for each arc segment (in model units)
                      userSegs = input[0]
                      minLen = input[1]

                      #UI.messagebox(userSegs.to_s)
                      #UI.messagebox(minLen.to_s)

                      allEntities.each do |i|
                      if (i.typename == "Edge")
                      aCurve = i.curve
                      if (aCurve)
                      Sel = theModel.selection unless defined?(Sel)
                      Sel.add (aCurve.edges)
                      newGroup = allEntities.add_group (theModel.selection)
                      Sel.clear
                      else
                      #not a Curve
                      end
                      end
                      end

                      theModel = Sketchup.active_model
                      theModel.selection.clear
                      allEntities = theModel.entities

                      Loop through all entities

                      allEntities.each do |i|

                      #open Groups, search for Curves
                      if (i.typename == "Group")

                      #Loop through array of Entities inside each Group
                      subset = i.entities
                      subset.each do |s|
                      curve = s.curve

                      if it is a curve, collect a few properties

                      if (curve)

                      get coord. transformation, since entities are in a group

                      #use "transform" below to translate to global coordinates
                      tr=i.transformation

                      cCenter = curve.center.transform! (tr)
                      cSangle = curve.start_angle
                      cEangle = curve.end_angle
                      cRadius = curve.radius
                      cNormal = curve.normal.transform! (tr)
                      cXaxis = curve.xaxis.transform! (tr)
                      cYaxis = curve.yaxis.transform! (tr)

                      cLength = curve.length
                      #UI.messagebox(" Curve Length is " + cLength.to_s)

                      #divides arcs in minLen(model unit) increments
                      divSegs = (cLength / minLen).to_i
                      #UI.messagebox("Divided Result is " + divSegs.to_s)

                      #for very small arcs, sets a minimum number of segments
                      if (divSegs <= userSegs)
                      numSegs = userSegs

                      UI.messagebox("Using: " + numSegs.to_s)

                      else
                      #subdivides larger arcs using target length
                      numSegs = divSegs.to_i

                      UI.messagebox("using Divided total" + numSegs.to_s)

                      end

                      myarc = allEntities.add_arc cCenter,cXaxis,cNormal,cRadius,cSangle,cEangle,numSegs
                      #Erases original
                      i.erase!

                      end # if curve

                      end # entities inside group loop

                      end # if it is a group

                      end #loop through all entities

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