- [Instructor] Another advanced line tool that we can take
advantage of, is the spline on surface tool.
This gives us the ability to directly
sketch our spline right on a surface.
So if we go to tools,
down to sketch entities,
and select spline on surface.
That's going to start a new 3D sketch
and if we select this surface with the first click,
we can just simply start drawing.
And I'm creating a spline on this surface.
Hit escape, now as you can see,
that follows along that whole body there.
Even up this steep incline.
Now you saw as I tried to bring it up farther,
it had a little bit of trouble flowing over that.
But this is creating very complex geometry,
so we have to play around and see what the limits are.
When I'm done with that I'm going to go ahead and
select OK and I've got my spline on the sketch.
If I want to I could take that,
and create a split line
using that 3D sketch.
You can see here how it takes the tangent edges
and pulls it out.
And now I've split my surface again,
so that's one of the useful applications
for spline on a surface and as we change this original
geometry and update it this will update as well.
You have to be careful though because
depending on how complex the geometry is,
like this which has very steep inclinations,
it might fail so you might not have a lot of adjustability,
so try to keep it simple like always,
but this is a very powerful tool for making
very complex geometry that's pretty much free form.