[Closed] UVW mapping Rollercoaster track

Hey everyone,

I wrote a little script that generates a rollercoaster track from a CSV file containing matrix values for location, pitch, yaw and roll of the track. It works by placing a predefined cross section of track at every point in the CSV file and applying a crosssection and surface modifier to it. This method however, leaves me without mapping coordinates for the rails. Any idea how I can tackle this problem? Maybe a different method for creating the rails? Anyway here’s the code I got so far:

f = 0
tiespacer = 1
executed = 0
trackdataarray = #()
trackcomponents = #()
rollout bu "Convert spline data"(
   button csvselect "Select CSV file"
   label CSVpresent "No CSV file selected"
   dropdownlist coastertype "Select coaster style" items:#("Vekoma MK1101", "Togo Default")
   spinner heartline "Heartline value" type:#worldunits range:[-10,10,0]
   button generate "Generate track"
   button finalize "Finalize track"
   
   on csvselect pressed do(
      f = getopenfilename caption:"Select CSV file" types:"Excel(*.csv)"
      if getFilenameType f != ".csv" then(
         messagebox "That's not a CSV file"
         CSVpresent.text = "No CSV file selected"
      )
      else(
      CSVpresent.text = filenameFromPath f
      )
   )
      
   on generate pressed do(
      if f == 0 or getFilenameType f != ".csv" then(
         messageBox "No CSV file selected" 
      )
      else(
         trackstyle = getFilenamePath(getSourceFileName()) + "\\No Limits spline translator\\" + coastertype.selected  +".max"
         if doesFileExist trackstyle == true then(
            mergeMAXFile  trackstyle #select
            selection.pivot = [0,0,heartline.value]
            trackcomponents = for s in selection collect s.name
            trackdata = openFile f
            while not eof trackdata do(
               linevalue = ("#(" + readline trackdata + ")")
               trackdataarray = append trackdataarray linevalue
            )
            deleteitem trackdataarray 1
            for t in trackcomponents do(
               for a in trackdataarray do(
                  subarray = execute a
                  if substring t 1 3 != "Tie" then(
                     copyobj = getNodeByName t
                     copiedobj = copy copyobj
                     objmatrix = matrix3[subarray[5], subarray[7]*-1, subarray[6]] [subarray[8], subarray[10]*-1, subarray[9]] [subarray[11], subarray[13]*-1, subarray[12]] [subarray[2], subarray[4]*-1, subarray[3]]
                     copiedobj.transform = objmatrix
                  )
                  else(
                     if tiespacer == 1 then(
                        copyobj = getNodeByName t
                        copiedobj = copy copyobj
                        objmatrix = matrix3[subarray[5], subarray[7]*-1, subarray[6]] [subarray[8], subarray[10]*-1, subarray[9]] [subarray[11], subarray[13]*-1, subarray[12]] [subarray[2], subarray[4]*-1, subarray[3]]
                        copiedobj.transform = objmatrix
                        tiespacer = 0
                     )
                     else(
                        tiespacer = 1
                     )
                  )
               )
            )
            delete selection
            executed = 1
         )
         else(
            messagebox "source file couldn't be found, please make sure it's in the right directory"
         )
      )
   )
   on finalize pressed do(
      if executed == 0 then(
         messagebox "No track was created yet"
      )
      else(
         modifierarray = #()
         for a in trackcomponents do(
            railarray = #()
            for o in objects do(
               if iskindof o splineShape do(
                  if substring a 1 3 == substring (o.name) 1 3 do(
                     --print o.name
                     railarray = append railarray o
                  )
               )
            )
            while railarray.count > 1 do(
               addAndWeld railarray[1] railarray[2] 0
               deleteItem railarray 2
            )
            masterobj = railarray[1]
            modifierarray = append modifierarray masterobj
         )
         cro = crosssection()
         sur = surface()
         sur.threshold = 0
         sur.steps = 1
                  
         for i in modifierarray do(
            if i != undefined do(
               addmodifier i cro
               addmodifier i sur
            )
         )
         redrawviews()
      )
   )
)
createDialog bu