So we can select that in the layer command by going to line type dashed.
Okay.
And you'll see all our internal walls are now dashed.
So what we've done, we've selected that particular property, which is line type.
We've selected it in the layer manager, which means every line on that layer.
Okay, we'll change as long as as long as the object itself is set to by a layer, which means it takes
a line.
Type by the layer.
If you can.
I think we've got one here.
So maybe for whatever reason, this line, for instance, these two lines, you didn't want these dashed,
you wanted them continuous.
You can select those.
Individually to be something else.
Okay, So you do have that option of not having it by layer, but generally the way you want to work
is just having it by layer.
Okay.
And then controlling things in the layer command.
And we can put that back to continuous and we can do that so easily because we're controlling it by
layers, everything becomes easier.
Maybe the color.
Okay.
Well, actually, internal walls.
I don't want them white.
I want them red.
Okay.
I want all the internal walls to be shown red.
Well, we can just click on under our layer manager.
We can go to color.
Read.
Okay.
And they will change.
This one hasn't changed because its color is set.
Under this properties panel.
If we change it to be by layer so it takes its color from the layer manager, then it will change and
that gives you a lot of control over your drawing because it allows you to quickly change objects and
turn objects on and off.
Okay.
And this is why in the workplace, when you create, you work with large layouts, with lots of things
on, it becomes more important because you really would want to be able to differentiate between objects
that are similar and turn objects on and off.
Later on you'll look at layer control and viewports.
That's too complex to look at now, but that is where layouts will come into their own.
It allows you to do so much with your drawing.
So do get used to using layers.
Okay.
Do get even if it's just general, you can name them.
When you're drawing for yourself, you can name them what you want and the easy way is to name them
what they are.
So doors, external walls, hatch, etcetera.
In the workplace, you tend to find projects have their own layering system.
So there can be codes.
There's a lot of different ways of doing it.
Generally, it will be code numbers for different items that reference back to documents.
There's a few ways, but you'll be given that in the workplace you'll be given a kind of layer table
and it will say, walls go on this layer, doors go on this layer.
Okay, so.
That's how you would set that up.
So let's look now at creating a layer.
And I'm going to do that.
I'm going to just draw a table.
Okay.
And it's going to be a very basic table.
It's just going to be a rectangle.
So that's a table and maybe that's a chair.
Okay.
I know, I know.
But just pretend.
So we want to create a couple layers.
One for we could create one for furniture.
And put them both on that.
Or we could create separate ones for tables and chairs.
The way you would do that, it depends on what you're going going to be doing going forward.
Some people will detail layers down to individual items.
I've seen drawings before where a tree.
It add a layer for the branches and a layer for the leaves.
Why you would need that?
I do not know.
Maybe in autumn you'd want to turn them off.
Who knows?
But it all depends on what you see yourself doing with that drawing in the future.
If you don't think there's any reason you would need to show tables and not chairs or any reason you
would want to show chairs and not tables, then just create a furniture layout.
Okay.
If the tables are being done by one contractor and the chairs by another supplier, maybe you would
want to differentiate them.
In that case, you would have a different layout, a layer for tables and chairs.
It doesn't really matter at the end of the day.
It's up to you.
Um, and really, it depends on whether you would want different colors or different line types or the
ability to turn one off and not the other.
So we're going to do it as an example.
We're going to create two layers and we can create a new layer in this layer properties box.
We click this here, which is new layer, okay?
And that gives us a new line on our layer table and it's asking you to type something in the default
is layer one.
The next default would be layer two and so on.
So I'm going to call this chairs press enter.
We now have a layer called chairs, but if I turn it on and off, nothing's going to happen because
we haven't actually put anything on it yet.
I'm going to create another layer and I'm going to call that tables.
Okay.
Again.
Nothing's happened yet.
So we now actually.
So we now have to put the objects on the correct layer.
And to do that, it's simple.
We just click it.
So when you click an object under layers, it will say.
The that objects on and the layer at the moment is under the title block layer.
Why is it under the title block layer?
Well, you always need to have one layer selected as the current layer.
If I draw a line that has to be on one layer and you'll see under the layer manager, we have a green
tick against title block.
So that means that's telling us title block is the current layer.
We can also see it's the current layer because it's it's selected here.
Okay.
So if I was to select if I wanted zero as the current layer, I could double click it in layer Manager.
Okay.
Or I could change it here.
If I wanted chairs to be the current layer, I could select chairs there.
So now with this selected, if I draw a rectangle now that is on the chairs layer, I can select the
object and it's on the chairs layer.
Okay, but what about changing it?
Well, all I need to do is select the object.
And I can use this pull down menu and I can say, okay, put that on the chairs layer.
And that is on a layer now called chairs.
And I'll do the same with this one.
It's going to go on the tables layer.
Okay, so we have chairs and we have tables.
And if I was to now turn tables off, that will disappear.
Same with chairs.
Aha.
And now we get a message.
And this message is saying it's basically asking us, do you want to turn the current layer off?
Be very careful with turning off the layer that is set to current.
And I'll demonstrate why.
If we turn this current layer off.
So Chaz's current and it's turned off and I now start drawing a line.
Nothing happens.
Oh, I'm going to do it again.
Nothing happens.
Oh, AutoCAD.
Is it broken?
Everything I'm drawing is not there.
Well, you've probably guessed what's happened.
And if I turn chairs on now, you'll see all these lines I drew appear.
So that's a danger of having your current layer turned off.
Really?
You shouldn't ever have a current layer turned off.
The best thing to do, certainly in the beginning, is leave zero as your current layer and then you
know, anything you draw.
Anything new that you create is on layer zero.
Okay.
And that tells you that anything that hasn't been given a layer yet is on layer zero.
So supposing I drew a bookcase or another table.
Okay, so let's suppose I drew another table, but I forgot to put that on a layer.
If I was to turn all these off, which we can do, you can select the top one.
And just like in other software you can use, and just like in other software, you can use control
to select individual ones.
Or you can use shift select to select the whole list.
So if I select all those and turn them off.
Everything's gone except this line.
And because zero is the only thing turned on, I know that this hasn't been assigned, so that's kind
of a quick way of making sure everything you've got is assigned.
I can put that on tables and it disappears.
Okay.
And it will just give me a warning that it's been moved to a frozen layer.
If I now turn those on, everything reappears.
So we've created a new layer.
So we've created our two new layers.
We've got tables and we've got chairs.
But I want those to be a certain color so I can set that in my layer manager by clicking the color here.
Let's make chairs.
Purple, maybe.
Okay.
And let's make tables.
Let's make them.
This kind of pink.
Now you'll see none of these have actually changed, even though we've changed the layer.
This is on table.
A table layer.
Okay.
On the table is set to color 11, but it's not.
The reason is it's not set to.
It's color is set to by a block.
Forget about what by block means because we haven't looked at blocks.
But what you want it to be.
Set by layer, which basically tells it the color is controlled by the layer.
You could give it a color of its own, but you lose that control of being able to change it all, change
all your tables in one go.
So where possible, things really should be set to by layer.
Okay.
And now you've got them and you can turn the tables off and you can turn the chairs off.