3 answers

• 
  Schrotter over 1 year ago

  cgr-files only present the outer surface of a part/assembly. This surface is tessellated (consist only of triangles). This format is only for representation (DMU).

• 
  KFZ-Schule over 1 year ago

  If you get an IGS, STEP file, you can´t see the history, but you can work with the surfaces or volumes (for example edge fillet or hole)
  If you get an CGR, you can´t see the history and you can´t work with it.

  greetings

  1. 
     sam about 1 year ago

     we can work with it in some special way ,such as the measurement tool to create curves

• 
  Abhijeet over 1 year ago

  thanx mr. hailstone :)