Subtitles of the Movie

In the second part of the Polylines Exercise what we're going to look at is Exploding our Multiline that we created to create our Cavity Wall into component line segments. We're then going to use the Polyline Edit Command to bring all of those segments into the one Polyline. Now the benefit we have is we're already using a Layering Convention, so our doors here, our Polylines, are already on the Doors Layer. So I'm going to pop up to the Layers Panel, click on the Layers pull-down and Freeze the Doors Layer here. So I click here like so and Freeze the Doors Layer. Now, that Layer can't be frozen because it's the Current Layer, so I close the dialog. What I do here is I make Walls the Current Layer like so, and then when I click on the Layer pull-down and click on the Doors Layer here, like so, it freezes, you'll see the doors disappear down there on the screen and I just click in the Drawing Area and carry on drafting. So, what I'm going to do now is Explode the Multiline. So I select the Multiline, go to the Modify Panel, click on Explode. It's now broken down into its component line segments as you can see. Now it's all the blue line segments that I want to be a Polyline initially, so I type pe, that comes up on my Dynamic Input. PE stands for Polyline Edit, and I press Enter. It then prompts me to select a Polyline. So I'm going to pick on that Line Segment there, left-click. Do I want to turn it into a Polyline? Well, that line segment and all the other blue-line segments, so I say Yes, just by pressing Enter there to accept the Y for Yes, then I go into Polyline Edit in full. I select Join and I'm going to join all of the other blue segments to that one Polyline segment. So, just using the Pick Box and left-clicking now I'll work my way around. It doesn't matter if you select the original segment, either, like I've just done. That's not a problem. So, be methodical here. Let's work our way around. As you can see I'm just taking my time, making sure I get every single blue line segment, otherwise it won't form a Polyline. Now you'll notice I'm being clever here selecting all of them apart from those two endcaps on the original Multiline. I now zoom in a bit and I can then go in and select them, like so. Make sure you get it accurate like I've just done there. If I zoom out now you can see they're all selected. I just press Enter to confirm and it takes me back into, you can see there, the Polyline Edit Command, so I press Enter again to come out of the Command. Now, let's check that out. It's now a closed Polyline as you can see. Now what I can do as well now is I can zoom in and I can start working on these lines here on the inner cavity. I don't want these to be Polylines just yet, though, but what I am going to do just very briefly is do some measuring. So what I need to do is go to the Measure Tool here and measure Distance again. When I measure the distance from here to the end of that line there, it's 100, so that piece of wall there is 100 thick. What I'm going to do very quickly is just draw a line that's 100 long. Just watch. I now go, stay on the Walls Layer here, and I'm going to draw a Polyline, click on Polyline here. I'm going to go just exit distance there and then click on Polyline. Notice it came up when I was trying to get into another command? Sometimes if you don't exit that Distance Command it'll warn you, it'll prompt you. So, I've gone along here, now look. It remembers the Polyline width. So I right-click and I go to Width and I select zero, which is the default Width, then it just draws a line like that. So I go along here. Direct Distance Entry 100, Enter. And there's my Polyline. Now look, it's done a taper because I didn't do the End width. So I hit Escape, I go back to Polyline Ð you've got to remember these things when you're using the width Ð so Start point there, right-click, Width. Starting Width, zero, Enter. Ending Width, zero, Enter. Now, when I put the 100 in you can see now I've got a standard line. I'm then going to come down to here, like that, make sure I intersect with that line there, and then I'm just going to press Enter. Now I've got a little Polyline there, yeah? What I do now, is I'm going to trim back, so I go to Trim here, use that as my Cutting Edge there, Enter to confirm. I then trim back that line there, Enter to finish. Now you can see I've got a turning point for that outer brick work where the door starts and the wall ends. So you can utilize that Polyline Command in lots of different ways. What we'll look at next is Splines and we'll do that in the next exercise.