Hi rado, yeah definitely like Pilou mentions the new Transform > Deform > Flow command in v3 will do exactly that kind of morphing from a flat pattern to one that follows a curve.

See here for some other general examples of flow:
http://moi3d.com/forum/index.php?webtag=MOI&msg=4363.124
http://moi3d.com/forum/index.php?webtag=MOI&msg=4363.65
http://moi3d.com/forum/index.php?webtag=MOI&msg=4471.1
http://moi3d.com/forum/index.php?webtag=MOI&msg=4493.1


The way it works is it deforms objects from one backbone reference to a new backbone. The "backbone" can be either a line curve object or a plane surface object, and then you pick a target bendy curve or target bendy surface and the objects will remap from the base backbone to the target backbone.

Probably a curve based flow would be good for what you need to do - when doing a curve backbone flow it is buggy right now if you don't have the base and target curves all in the world x/y plane, so make sure both the base curve and target curve are on the Top view plane.

Then you can have a straight extruded slab solid that is oriented vertically, draw a line at its base, and then have a target bendy curve for how you want the result.

So something like a simple straight extruded slab solid like so:



Then draw in a line at the base, and have a separate bendy curve something like this:



Then to do it, select just the slab and run Transform > Deform > Flow (note no icon for it quite yet). Then at the first prompt select the line at the base and then at the second prompt select the target bendy curve, that will transform the slab to follow the target curve like so:



- Michael