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So let's look now at properties and properties in general.

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Now every object in AutoCAD has properties and its properties are it can be the way it looks, it can

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be the way it acts, it can be various things.

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But even a basic line, just not even a polyline, just a basic line will have a set of properties.

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Okay.

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And you can bring those up by right clicking and going to properties.

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And we have looked at this in various other chapters, but let's just look at this in more detail now.

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You might notice a lot of the time I have this box, this panel permanently on the side.

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Okay, You do use it a lot or I use it a lot the way I work.

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And it sometimes it is easier to just leave it open.

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If you if you're using a smaller screen, if you're on a laptop or something, you might want to close

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it just to give you more room.

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But to get it back up, you just select any object, right click and properties.

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Okay, So what does it tell us?

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Well, if I select the object, we've got things like the color, which is fairly obvious.

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So the color of an object it can that can be changed under its properties.

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Now we also have this properties box here and you'll see when I change things here, it also changes

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up there.

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And this properties panel, it has the, the basically the, the most used properties.

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Okay?

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So things like color line type, that kind of thing.

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But I tend to use unless I'm just doing quick changes on layer or color.

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I tend to use this panel here and we'll concentrate on that on this panel in this lesson so we can change

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the color of an object easily.

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We can change the layer it's on.

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So if you not sure what layers are, if you look up the basic chapter on layers that will explain that

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so you can change the layer.

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We only have one layer in this drawing, so it's only coming up with layer zero.

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We can change the line type again, we haven't loaded any in this drawing, but if I quickly load them

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and don't worry if you don't know what I'm doing here.

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If you haven't yet done the chapter on line types that explains how to load these in, I'm just bringing

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something in as an example.

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Okay.

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So I can select the line type.

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Okay.

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I can change the line type scale.

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Again, that's discussed in the line type chapter.

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Plot style.

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Don't worry about that.

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Okay.

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Line weight.

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Now line weight is basically the thickness of the line.

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So by default, line weights are set to by layer.

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If you if you don't understand the concept of by layer, go watch the basic layer chapter.

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But by layer just means it's set in the layer properties panel.

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But line weight.

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Is how thick that line looks.

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So you can have thick lines and you can have.

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Thin lines.

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And you might notice when I click this line weight, if I put it on a really thick line like that,

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nothing's actually changed.

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It still just looks the same.

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And that's because we've got an option down here.

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We can display line weights or not and you can turn it on and off here.

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So with that turned on, if I change this line weight option.

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You will say I can change the thickness and it displays.

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Now, some people don't like using line weights.

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Some people do.

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Even if you're using them, it might be that you don't want to show them because it can.

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It can get in the way.

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It can overlap things.

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So sometimes you'd want to turn them off and have everything shown default, which is just a thin line

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that's up to you.

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That's down to personal preference And what you're working on this chapter, really, I'm just showing

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my properties, but that is how we can change the line weight.

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Okay, So you can set the line weight, transparency and maybe we had let me hatch this in again.

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Don't worry about what I'm doing here.

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If you want to learn about hatching, do the chapter on hatching if you haven't already.

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But maybe I wanted this line here.

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Okay?

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I wanted to be able to see it.

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I can click on this hatching and I can select the transparency so it's 50% transparent.

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Okay, Now you can see the line running through it.

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It's got it's got transparency so you can see it going through so you can set that in the properties

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panel and anything can have transparency.

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So a line, anything.

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Okay.

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Okay.

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We've got hyperlink.

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Don't worry about that thickness.

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Now thickness is, is a 3D thing.

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So this basic course, don't worry about anything 3D and that generally goes to a lot of stuff down

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here.

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You don't need to know.

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This is a coordinate.

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So we've talked about the coordinate system.

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This will tell us the coordinates of our line.

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So we have a start and we have an end of a line.

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This is a coordinate in x and y of the start, and this is a coordinate here of the end.

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So we have these you do have a Z, which will be zero because it's not 3D, but generally that's the

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coordinate of a start.

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That's a coordinate of the end.

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Don't worry about any of this either.

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Okay.

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That's more in depth.

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Polylines.

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If we do a polyline instead of a line, we get the same options basically.

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But there is a few things with geometry, and this is another reason why polylines are more powerful.

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Because now our polyline properties include things like width.

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So.

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If we don't want to use line weights.

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Okay, we can give the polyline a width.

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So I could set that at a width that's too wide a width of one.

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And we have a wide line.

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Okay.

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Now, why would you do that instead of line weights?

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Line weights are more of a visual thing, really.

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You can control them for displaying various properties.

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Now, why would you want to divide the line, which I prefer if I want a thickness?

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I do prefer to use a polyline and give it a width.

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Okay.

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That's my personal preference.

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Some people choose line weights.

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To me, line weights is more.

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It's something you would use indicatively.

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So if you wanted to select, let's say.

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You wanted the line to look thick and thin for.

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So you want to differentiate between one line and another.

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So maybe the external walls you want it to be with a bit of a thick line and the internal walls thinner.

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You could use line weights and it goes back to the old days where we used to draw with pens and you

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would have different width of the pen nib, so you'd have thick lines and you'd have thin lines and

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the thin lines would be faint to show little details.

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And then the main objects, like your external walls would be nice, big thick lines, and that would

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be line weights with a poly line width.

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It's actually it's in units.

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So if you wanted if you were drawing a pipe and that pipe was 50mm wide or maybe it's six inches wide

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or something, you can actually select that.

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So if this if this was a let's say it was a pipe and it was.

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Five units wide.

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Okay.

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Whether that's millimeters, inches or whatever, it's five.

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5mm or 5in wide.

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You can actually give it a width of five.

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So you're working with units.

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So it's actually to scale the width is to scale, whereas with a line weight, it tends to be more of

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just a display, a visual thing.

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This is actually five units wide.

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Also what you can do with the poly width, you can have a different start and end width.

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So if it was something like a pipe gradually getting larger for whatever reason, you could start it

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at one and finish it at five and you can do objects like that, but it's all to correct coordinate correct

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dimensions.

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That's the thing.

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This is five units and that's one unit.

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So it's accurate.

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It's not just a visual thing.

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And I just for that reason, I prefer to use Polylines with widths whenever I'm giving it a width.

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Okay.

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Um.

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You can also wear properties also comes in handy if you have a rectangle.

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If that was let's say that was a room.

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Okay.

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So.

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It's a bit small to be a room.

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Let's do it.

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Let's do a bigger one.

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So it's.

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It's just about that size.

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Okay, So, so if you click on it, you can get an area.

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Okay.

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You can also get a link for the whole of a perimeter just by clicking on it so it gives you the information

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you might need.

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If someone came along and says, measure the area, tell me the area of that room.

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You can just if it's not already, draw a polyline all around the outside and click on it and it'll

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tell you the area.

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Okay, just remember it's in your unit.

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So if if this room was drawn in millimeters, when you go on the area, it's millimeters squared.

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Okay.

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So.

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You need to do a conversion.

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You need to bring that decimal point.

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If you wanted it in meters squared, you would have to bring that up.

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But yeah, you can get that information in the properties and different objects will have different

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properties.

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So a circle, it will have radius and diameter and circumference area and you can change it.

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You can put in if you wanted to change the radius, you can type it in and it will edit it so you can

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edit it in this properties panel.

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Okay, You have the center, the coordinates of the center point.

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All that, as well as the usual things like layers, colors, thickness, that kind of thing.

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So that's properties.

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It's one of those things.

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It's kind of a go to panel for information and to change things quickly.

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Sometimes you'll see it open on my drawing as we go through lessons.

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Sometimes it won't be because I use it a lot.

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Sometimes I tend to even forget it's open and I use a fairly big screen as well, so I've got plenty

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of room in the drawing spaces.

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So sometimes I'm working away and I forget it's even open, so it might be there even when I'm not using

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it because I'm using a big screen.

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But if you're short on screen space, just close it.

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You can always bring it back up with a right click.

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Properties.

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Okay.

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So what would you do if you had one object and you wanted to have another object with the same properties?

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It can get a bit tedious and long winded to kind of select an object and put it on the door.

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Maybe this.

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Maybe I had a just a rectangle here and I wanted this to have the same all the same properties as this

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door here.

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So.

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I could put it on a double layer.

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But maybe it was already set to a different line type.

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You see, it's not set to by layer, so I've got to change it by this.

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So you've got to go through and you've got to change all these settings.

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But there is this button here which I use all the time.

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It's called Match Properties.

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And what that will do, it will just say, okay, I want you to take the properties of this object and

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apply them to that object.

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It's just a simple I'll do that again.

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So you can left click, left, click.

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And now.

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This one will take on all the same properties.

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Of the object you selected first.

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And it's great if you've got a lot of objects you want to change.

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It's something, like I say, I use all the time in terms of making your drawings onto a standard.

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It makes things so easy because you can just select multiple objects and match them to the properties

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of another.

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So you'll see me using this in the example when we get onto the example chapters.

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In the course chapters, you'll see me using this a lot.

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That's match properties.