Wrapping tepee cover

[Philippe Hurbain]

A canvas tend to be flat...

I don't understand this.
It is always possible to roll a flat sheet, of any shape, into a perfect cone. I don't see why it has to look like this. I'd expect the top corner to follow the yellow arrow, and not extend in a tangential direction. Is the canvas very stiff, and don't want to be rolled up?

LEGO canvas are generally rather stiff, and look at a real world tepee!

And maybe that corner is a tiny bit to long? If I look at pictures of a flattened canvas, it looks to be symmetrical.

Mmhhh... yeah, perhaps a tad too wide on that side.