How do I turn this curve into one surface?

Rhino Rhino for Windows
1

The curve itself is 100% coplanar to the xy-axis. I wonder how I would turn it into a surface…
Patch doesn’t give me the wanted result.

Pasted image1447×641 39 KB

2

use the command PlanarSrf

3

thanks just found it. Pretty easy after all :slight_smile: