gcode viewer for 1 layer file

[Mjolinor]

Not 3d printing but close.

Does anyone know a gcode viewer that can view this file, it is only one layer high. It is a triangle drawn in Inkscape and (I hope) it is the inner and outer of the lines of the triangle. I am trying to make (for example) a file to laser cut that will be one face of an electricity pylon, cut 4 and stick them together to make a model pylon to go on a model railway layout.

It would really help to visualise if I could see the thing from the gcode before I cut it.