Help creating surface

[ts9YDQK]

Hi
Sorry if this is the wrong place to past this question. I need help to figure out how this chipped pyramide shape can be created I. Fusion 360. The pyramide is squeezed closer to the top and bottom.

hope someone is able to help

 

[Warmingup1953]

The pyramid shape, I think, is relatively simple... a rectangular base rather than a square....But having these made up into the example in your photo, less so. Can you explain your aims?

[Warmingup1953]

Ah I think I see it better now....Is this a spherical body?

What happens at the poles?

[ts9YDQK]

at the poles it flat. The picture is of a lamp shade. At the poles where is is flat the pattern isn’t present so only on the curved part of the sphere

[ts9YDQK]

Sure let me try. The pyramide shape is the easy part. The tricky part or what I can figure out is how to make the pattern follow the curved profile and adjust the width squeeze them before along the edge of the poles , they seem pulled . Also how do I get the pattern to repeat around the two axis.