i wan't to draw a  Isosurface according to   point  value

Discussion created by yanasdf789 on Sep 4, 2012
i want't  to draw  a   Isosurface   on  a map  with  GP ,  someone  have  the model example ?
i  want't  to   a  model,
my model  can't  to be  Color grading ,with  only  one color....
can you  help me  .thank you