Join Shaun Bryant for an in-depth discussion in this video Drawing and editing polylines, part of Cert Prep: AutoCAD Certified Professional (2015).
- We're now in the next section of our AutoCAD professional certification course, and we're now looking at additional drawing techniques. We're going to have a look now at drawing and editing a Polyline in AutoCAD. A Polyline is a group of line segments joined together to form an outline or a boundary. If we look at the drawing we've got open at the moment, you can see it's 6-Additional Drawing Techniques and then POLYLINES_Complete.
I'm using that one so that you've got a completed version at the end of this video. You can use the drawing 6_Additional_POLYLINES.dwg to follow along with this particular exercise. Again, you can find the exercise files and download them from Lynda.com from this particular course. Now, this is a Polyline, it's an outline of an arched window, and you can see it's a Polyline, when I hover over it AutoCAD tells me it's a Polyline and it's on the layer POLYLINE. What we're going to do is quickly go to our Layers panel in the Home tab on the Ribbon.
Make sure you're using the layer POLYLINE. You can see we've got two different layers, LINE and POLYLINE, if you're drawing Polylines you want to be on the POLYLINE layer. What we're going to do is we're going to replicate this particular arched window, to the right of the window. The Polyline command itself is on the Draw panel on the Home tab on the Ribbon. There's the Draw panel, and I click on Polyline. I come into the drawing area, and it's very much like the Line command, it's asking for that first start point.
What I'm going to do is I'm going to hover on this point here, this endpoint snap. So make sure that your object snaps are on, object snap tracking is on, and polar tracking is on, and then as I drag across this way, you'll see that my extension snap kicks in with my object snaps. I'm going to type in 100 and Enter. You can see that I'm starting this Polyline over here. What I'm going to do is use my polar tracking and come up vertically, using the 90 degrees on the polar tracking. I'm going to make that 85 high and press Enter.
Now that gets me that line there. Now I need to create that arc, now you'll notice on the command line there, I've got the option for Arc. In AutoCAD 2016 I can just come down here and click on Arc, like so. Can you see now I've got an Arc ready to go in? Now what I'm going to do is drag across using my polar tracking to specify the diameter of that Arc, which is going to be 65, and then Enter, like so, and you can see that Arc is formed. Be careful, because it will want to draw another Arc now, as part of the Polyline.
You have to go back to the Line option. I can click on that in the command line, or I can right-click and select Line on the shortcut menu and I'm back using the Line, can you see? Then I'll come vertically down again, and that's going to be 85 again, and Enter. What I can do now, because I've done this all in one continuous group of line segments, I can now right-click and select Close as I can with the Line command, but I'm also closing the Polyline to form a closed boundary, which means that that Polyline boundary will also have an Area and a Perimeter.
So when I click on Close, that closes back, I've now replicated my arched window, and you can see it's all one Polyline. That's how you create a Polyline. What about editing a Polyline? Select the Polyline you've just created, this one here. I'll click there like so, I'll go up to the Modify panel in the Home tab on the Ribbon, and I'm going to click on Explode. That explodes it all back to its its original arc and line segments. So how do I now actually edit that polyline? I use a command called Polyline Edit.
It's on the fly-out menu here on the Modify panel. If I click there, Polyline Edit is there, I can also type PEDIT, or just PE for short. So I can click there, or if I come into the drawing area and type PE, like that, Polyline Edit, you can see it comes up in the suggestion menu there, press Enter. I now need to select a Polyline. None of these are Polylines yet, but if I select one of them, AutoCAD will prompt me, Do you want to turn it into one? Yes I do, so I'll press Enter to accept the Y for yes.
And then this little shortcut menu kicks in which has gone slightly off the bottom of the screen, but I can go and click here on Join in the actual command line, or I can click on the little menu that's popped up. If I click on Join, I then have to select all of the other lines and arcs I want to join to that Polyline I've just created. So those two lines and that arc I want to join. I'll then right-click to confirm that. And, you'll notice, there's lots of other things I can edit. I can edit the Vertex, for example, in a Polyline, I can edit the Width of a Polyline, giving it a Width, giving it a Thickness, I can change the Line Type, I can Reverse it, lots of different settings there for Polylines.
So you will need to investigate those. If I hit ESC a couple of times now, just to close the Polyline Edit command down, you can see that is now a Polyline again where I've used Polyline Edit to join the segments together to make a Polyline. So that's drawing and editing your Polylines in AutoCAD. I can't stress enough, make sure you practice, ready for your professional certification exam.
- Creating and publishing AutoCAD files
- Drawing shapes and lines
- Creating isometric drawings
- Transforming objects
- Creating and using arrays
- Organizing objects and layers
- Reusing content with blocks
- Adding text, dimensions, multileaders, and scales
- Creating layouts
- Setting printing and plotting options
Skill Level Appropriate for all
Q: Is this certification available for AutoCAD for Mac users?
A: AutoCAD certification is on the Windows environment only. Currently Autodesk does not have plans for an AutoCAD for Mac certification.
Q: This course was updated on 02/01/2016. What changed?
A: We added four new videos to the "Certification: What Is It?" chapter. These tutorials cover Certiport, the online certification service that now offers a variety of Autodesk certifications.