How to create shape inside bonudary?
Is there a possibility to create a shape from outline? For example if I created an outline of pyramid or any other shape, is there a command to fill the volume bounded by lines?
In a word, No.
But if you can bound the volume with surfaces instead of lines then there is a command to make a solid volume out of that.
Also, chances are good that the outlines you're starting with can be used to generate the solid volume another way, such as a loft with guide curves.