# How can I spin and morph a curve(mesh) to another curve(mesh) together

I have done a 180°Spin around one axis of a transformed curve I got from a svg file eg. a square. But when I want to spin the square and morph it into a semicircle I got stuck. I can spin the circle for 90° and the square for -90° around the same axis but I am not able to add a morphing to this process (see picture). Is there a way for this in blender? And can a Newbie like me even do that ? Thanks for the help in advance

Sascha

• Sorry I forgot to mention that I want to generate a 3d object that I can print, – Sascha Jan 19 at 14:46