> I suppose recreating the method with autolisp is always an option, though
> not one I relish.
>
> - Grim

Try rather with ObjectARX unless you are familiar with autolisp. For me it
looks like almost impossible task to do something useful with lisp.

Looking on your model I have another idea. It is generally a grating made of
cyllindrical bars. Why not to model only center lines from knot to knot in
Autocad and then use a macro in PovRay to create grating of cyllinders (and
probably spheres) based od this skeleton? You can easily get coordinates of
the lines with Autocad "list" command. This is what we get (copied from
Autocad text window):

                  LINE      Layer: "0"
                            Space: Model space
                   Thickness =   10.0000
                   Handle = 44BB
              from point, X=-6949.4255  Y=3165.5131  Z=   0.0000
                to point, X=-3260.3316  Y=7146.8069  Z=   0.0000
          Length =5427.7172,  Angle in XY Plane =     47
                  Delta X =3689.0939, Delta Y = 3981.2937, Delta Z =
0.0000

                  LINE      Layer: "0"
                            Space: Model space
                   Thickness =   10.0000
                   Handle = 44BE
              from point, X=-5510.6789  Y=6040.8920  Z=   0.0000
                to point, X=-7834.8080  Y=7183.6707  Z=   0.0000
          Length =2589.8880,  Angle in XY Plane =    154
                  Delta X =-2324.1292, Delta Y = 1142.7787, Delta Z =
0.0000

                  LINE      Layer: "0"
                            Space: Model space
                   Thickness =   10.0000
                   Handle = 44BD
              from point, X=-6137.8248  Y=8215.8580  Z=   0.0000
                to point, X=-4330.1688  Y=7847.2197  Z=   0.0000
          Length =1844.8617,  Angle in XY Plane =    348
                  Delta X =1807.6560, Delta Y = -368.6383, Delta Z =
0.0000

                  LINE      Layer: "0"
Press ENTER to continue:
                            Space: Model space
                   Thickness =   10.0000
                   Handle = 44BC
              from point, X=-7060.0983  Y=5082.4324  Z=   0.0000
                to point, X=-6137.8248  Y=8215.8580  Z=   0.0000
          Length =3266.3350,  Angle in XY Plane =     74
                  Delta X = 922.2735, Delta Y = 3133.4256, Delta Z =
0.0000

Then in Pov you can #read this text file string by string. Separators for
values are commas or spaces. So Povray will read each line separatelly or
will put the contents of several lines into one string until first comma
(I'm not sure). Anyway when you find that just loaded string ends with
"from point" it means next you have the string with the coordinates. It
needs a little clean out from white spaces and analyzing to convert string
to x, y and z values. But after that you have ready tables with coordinates
to create model with cyllinders and spheres.

Good luck!

Przemek

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