bug fix and display the slice with contour.
bug fix and display the slice with contour.

aditiiyer/CERR,aditiiyer/CERR,cerr/CERR,cerr/CERR,cerr/CERR,aditiiyer/CERR,cerr/CERR,cerr/CERR,aditiiyer/CERR,aditiiyer/CERR,cerr/CERR,cerr/CERR,aditiiyer/CERR,aditiiyer/CERR,cerr/CERR,cerr/CERR,aditiiyer/CERR