Sweep a profile on a polyline as axis profile changes size at end? 1

[steveg501]

Catia V5 sweeping a circular section along a spline changing in size, how do you do it if the section changes in size and the sweep spline "guide" is its axis ?

Cheers
Steve

I'm hoping there's an easy solution here and I have just over looked something.

 

[Kapitan]

Using Sweep and the Center and Radius option, with the radius defined by a Law.

In the picture the area under the law definition curve has been filled and coloured green for clarity. For most of the spline length the sweep is a constant diameter, then it smoothly and tangentially, reduces at the end. The law reference is a line, whose length is not necessarily that of the spline - it automatically scales to that when the (Advanced) law is used. The definition curve is a joined line and spline, and at any point along the curve the distance to the reference line represents the circular sweep radius.

Once the law has been made it appears on the Tree, and from there it is selected to define the Sweep radius.

The spline can be a plane curve (shown) or a space curve, it doesn't matter, nor does the whereabouts' of the law graph in the model.