[mplanchard]

A 3D curves get more complicated, you may represent the functon in SolidWorks with the Sketch Tool, Equation Driven Curve. If the curve is a function of x, y an theta, use the Parametric option.

If the curve is developed through another mathematically program through x, y, and z points, save the file output as a text file. Then use Insert, Curve, Through X, Y, Z points and select the text file. The cuver will be inserted into SolidWorks.

Use Convent Entities to project the curve onto a sketch plane.

Marie