Display the curvature of a surface.

Input parameters:

1. Sh → Surface to analyse.
2. Ty → Type of curvature to display.
   • 0 → Minimum
   • 1 → Maximum
   • 2 → Mean
   • 3 → Abs(Mean)
   • 4 → Gaussian
3. Gr → Visualisation gradient.

Output parameters:

1. Ms → Mesh with analysis colours.