Create Curved Convex Walls

[Anonymous]

Hey, I wanted to know how to create walls, which are not only curved (which I know how to) but are in the shape of " ( " like a convex shape. Also not just in a convex shape but a curved convex shape.
I know I might be asking for a lot, but it would help me with my Thesis project.
Please help me out.
Thank you.

[Christophe Fortineau]

Hello chiragnibs,

1°-Click on your space bar as you clic on a 2D spline with the wall tool
2°-Use Morph to model all other kind of curved convex wall shape