How to make surface mesh finer? - Gnuplot Programming

How to make surface mesh finer?

- The mesh size, indicated by XY coordinates is determined by ‘isosample’.

- The default number is 10.

- To get the finer mesh the size should be more.

- The mesh size troubles when a hidden line option is used with ‘set hidden3d’.

- To avoid these troubles, make ‘isosample’ larger, like 30 and above.