Make a tube from a straight line I found this great guide for creating tubes from Bezier curves, but I am working with an imported set of straight lines that came from a shapefile (geographic data format). I would like to render these as 3D pipes, but this guide seems to only work with Bezier curves.  I do not have the option to change the "Bevel Object" on these straight lines.



Is there a similar way to just transform all of my straight lines into 3d tubes? I'm not worried about it looking perfect, I just need to see a 3d approximation of them.
You can simply convert the straight lines into a curve then give them the bevel you want.

To convert the straight lines :
Press Alt + C (Select Curve).

By this step the straight lines is converted to curve , so you can easily give it the bevel and control it also as a curve.

To give it bevel - When it is a curve - :