- Oftentimes we get data that's been translated in,
and it may have a split or a trim of some sort,
or we've done a split and you need to bring
the surface back, or you've created a primary slab
and that primary slab needs to get bigger.
We have a couple of tools, one of them is called "Enlarge",
that allows us to modify the size of a surface.
It's not going to modify the shape, just the size.
With the Enlarge tool, when I select my surface,
you'll notice it does an untrim,
takes everything back to its base shape,
and now I have the ability to grab one of the handles
and enlarge it.
Right now, though, Resize Parameters is set to "all",
so all of them are being resized the same percentage.
If I turn that off, I have the ability now to resize
one side or one edge at a time.
I can still grab it and manipulate it as such.
Typically we use Natural, we want to use the actual
natural smoothness, the natural flow of the surface.
On occasion you may want something to go Linear,
maybe you're defining a ribbon or a hem flange
or something along those lines and you want it
to go straight off of an edge, so you can switch it here
to get that shape change, we'll do that now,
you can see that it's changed the shape
of the surface slightly, so we'll go back to Natural.
And I'll select OK to create that surface.
Go ahead and hide that.
Another tool that we have is called "Extend Sheet".
Extend Sheet doesn't do the untrim the way the enlarge does.
But, when I select my edge, it does something similar,
potentially, based off of the extension shape.
Right now, it's set to Tangent.
With the tangent extension shape, it's coming off
of that edge and tangentially transitioning outward.
This is basically linear once we get beyond this edge.
If I come into Natural Curvature, you can see that
it's shifted a little bit, it's got some of that curvature.
And then I also have Mirrored.
Mirrored is, again, that natural shape or that natural flow,
so more often than not I find myself using that Mirrored
because I want to maintain that natural transition shape
across that boundary.
But sometimes, again, more engineering-type surfaces,
you may change that extension type.
Another nice thing that this tool allows you to do
is pick multiple edges, you just have to make sure
that you have your selection intent set up correctly.
Mine is just set to Single Curve, and I can walk
around the part and pick those edges.
You can see here it doesn't do the untrim,
just simply extends out that edge.
So there may be some differences in shape,
you turn on that Enlarge,
as you get out a little bit further away from those edges,
you can see here there's a slight little difference
the zebra-striping isn't quite so powerful
and once we get out a little bit further
the shapes do change slightly.
So it is doing something a little different
than the Enlarge, but for the most part it's a great tool
to take your primaries, maybe a trimmed edge,
and just grow it a little bit.