How make this yellow corner with Moi ?


My try :)
Some arcs circles, Network or sweep on the borders, and sweep on the center


File 3DM of the first image made with Shark by GuillaumeG
http://moi3d.com/forum/get_attachment.php?webtag=MOI_FRANCAIS&hash=224e4dfdc626fa6869f10c039e55a456&filename=valise.3dm