how to get the overset grid
 

hi,i am a beginner . i would like to make a program which can read multi-zone grid with CGNS.but i do not know how to get overset grid with connectivity information in CGNS format.

usually, i use gambit export 'mesh' file,and then use fluent read the case,then export CGNS grid.i need connectivity information of overset grids,which can be seen in ADF viewer


email:nawei1986@hotmail.com
thanku