say we have a 2D grid that is projected on a 3D surface, resulting in a 3D numpy array, like the below image. What is the most efficient way to calculate a surface normal for each point of this grid? ...

I'm trying to do a simple animation of a surface with Mayavi, but due to the lack of online examples (the few are extremely unclear or not useful) and official documentation, I'm struggling a lot. I w...

I was using matlab in creating 3D surface charts but lately moved to plolty js. Everything works fine in plotly's 3D Surface charts except that the color scheme is gradient in plotly. I am trying to g...