Added extended class RenderVTUFile from Renderer in VTKRendering.

Samo Penic

2017-09-17 83999e3246b2a977f79332ceae3449922d2dae95

 trisurf/VTKRendering.py

@@ -182,3 +182,16 @@
      #self.render.RemoveActor(self.actor)
      
      return


class RenderVTUFile(Renderer):
   def __init__(self,args,filename=None,scalar_field='vertices_idx'):
      self.filename=filename
      Renderer.__init__(self,args,host=None, run=None, timestep=-1, scalar_field=scalar_field)

   def lastVTU(self):
      if(self.filename):
         return self.filename
      else:
         raise Exception('No file specified')