contourf with more colours

With the function contourf I created the picture below. I would like to have more color gradations in it. I succeeded in the colorbar.

Does anyone have an idea?

Answer 1

[Ameer Hamza]

You can specify the 4 input argument to contourf() to specify the number of levels you want.

contourf(x,y,z,50); % 50 levels will be created

Answer 2

[Abdolkarim Mohammadi]

This works for both contour and contourf. You can either tell MATLAB how many levels you want.

contour (X,Y,Z, levels);

If levels is a positive integer, it tells MATLAB how many levels you want. If levels is a vector, it tells MATLAB at which specific heights of Z you want levels to be drawn.