Translations:B-Splines/78/en

At the moment (FreeCAD 0.20) there are some limitations when using splines you should know:
 * 1) You cannot set tangential constraints. In this example Sketcher_spline-limit-tangential.png you want to assure that the spline touches the blue curve 2 times tangentially. This would be useful because the blue line could for example be the spatial border for your design.
 * 2) You cannot create an offset curve for a B-spline using the tool Draft Offset.