- [Narrator] Often times you perform functions on surfaces
like trims, or face blends, or whatever that may be
and then the surface has been modified.
It's been cut away, blended away, whatever.
So if I come in for example,
go into surface, and I apply a face blend.
Pick you,
pick you,
and select okay.
And I realize maybe I needed the original surface
from one of these,
or maybe I wanted an edge or whatever that may be.
There's a tool called extract,
let me go ahead and undo this.
And I'm gonna go over to home.
Under the feature gallery under more,
it's called extract geometry.
Often times it's very useful to pick geometry and extract it
and use that extracted version to blend away or trim away,
and retain the original.
Maybe you need to go back and do a trim body to it,
or maybe you need to offset it, or whatever that may be.
You don't want the original to be affected.
So, you have this tool called extract.
You can also extract curves.
So if I wanted to extract an edge for example,
maybe there's something I wanted to do with this edge.
I can pick that edge and say tangent curves,
I want it associative so it's linked to the original
and I don't want to hide the original
I'm gonna use the original again for something else here
so I'll just leave it shown.
And select ok.
You'll notice I have a composite curve.
So it's extracted with that edge.
So if I came in here now and were to use a face blend,
that, select okay.
You'll notice there's the curve.
I still have that reference there.
So it's a great tool.
Now, I'm gonna undo that.
I'm gonna go back under home, under more, extract geometry.
This time I'm going to go ahead and extract a body.
What's the body I want to extract?
We'll say this body.
And okay.
Now there's my extracted body.
When I go back into my surface tool for face blend,
I can pick that extracted body
to apply that face blend to,
and now you can see the original right there is unaffected.
So, what this allows me to do is reuse that original.
So maybe I needed to do an offset with that now.
Or maybe I needed to trim up to that surface
for something else.
Often times that original should be left alone,
and use an extracted version of that original
to perform additional downstream functions.
Not always the case, maybe you do want the original
to be trimmed away.
And if you want to return back and pull that original out,
if you go up to a body like I have here
in the part navigator in your right mouse click,
you can take this and do an extract body
here with it as well.
And you'll notice that it creates that extracted body.
So you have options.
Go ahead and hide.
Go ahead and hide that.
You have options to do those extractions.
Now, if I double click on that extraction,
off of that body, you'll notice I have what's called
fix at current timestamp turned on.
And what this does is it extracts it
right at when that body was created.
With this turned on you have the ability now
to go in there and use that surface as is, or body as is,
and knowing that it won't be modified or changed
unless the original is modified or changed.
Again, sometimes you need to go in there
and you need to do extractions, so you have the ability
to go over bodies, right mouse click and extract.
You also have the ability to go under home, feature, more,
and do extractions here.
And you can see you have several options.
You can extract a face, region of faces, the whole body.
You can extract a sketch,
as well as as you saw, curves.
So in this case, when I did that extraction of that curve,
let me go ahead and hide that,
I know that that edge is going to eventually be consumed,
maybe I need to use that curve for a reference downstream
whatever that may be.
That gives me that curve right back, so extract, great tool.