I want to wrap a sketch of the shell shape on the image above, so I can wrap it on a chair and add curves on a seperate plane to be able to add curve when using patch tool, I will then make a midplane between two points of one shell lip so I can draw the poofy affect for guide rails for the patch. However For all this to work, I need to know how to measure the area, side length, ect of a design like this if I made it. Because I know for it to wrap Perfectly, I have to draw an outline of the actual chair area where it's going to go, but I don't know how to get the measurement to do something like that for a weird curve like this.
What I'm trying to say, is how do I get the dimensions of the inside of the chair where we would sit.
*the part where the back goes+sides, not the bottom where you sit on but what your back rests on and the side bits it's connected to
(sorry for bad english)
