Added missing function to wrapper.py

Samo Penic

2019-08-14 8f46a7926d3517bf5405fc5a8c723e6cc318ad58

 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')