In the installation test, a line was created and revolved about the z-axis one full turn. This essentially created a circular plane as the result of the default settings for Create Surface. If we denote those settings that only relate to the revolution (i.e., Revolutions is not zero), we can tidily display these parameters and their result. The following examples all use a three-inch line located ten inches away from the origin on the x-axis:
NOTE: Some models that were created with Spirix can be found at https://3dwarehouse.sketchup.com/user.html?id=1824658900641239202016828