Creo Reverse Engineering (Restyle) > Creating Analytical Surfaces in Restyle > About Creating a Conical Surface
  
About Creating a Conical Surface
When you create a conical surface using Restyle:
The midpoint of the base circle is its origin.
Restyle orients the conical surface with respect to the reference direction. The orientation of the surface can be changed by modifying the angular dimensions.
You can select datum planes and axes as direction references for creating the conical surface. If you select an axis as a direction reference, Restyle uses it as the cone's axis. If you select a plane, Restyle calculates the origin of the base circle automatically.
You can specify any two direction angular dimensions. Restyle calculates the third dimension using these two dimensions.