Join Shaun Bryant for an in-depth discussion in this video Rotating and scaling, part of Cert Prep: AutoCAD Certified Professional (2015).
- We're now going to have a look at the Rotate and Scale commands in AutoCAD. These are quite hot topics and often crop up in the AutoCAD Professional Certification Exam. So what we're going to do is make sure that you're aware of them, how they function, and just basically the methodology on how to get them to work within an AutoCAD drawing. We're staying in the Five Modifying Objects Complete drawing, you can obviously follow along with your drawing from your Lynda.com exercise set. Now the first thing we're going to do is utilize your selection skills that you've gained whilst following this particular course.
Now what we're going to do is delete some of the circles on our plate. I'm going to delete the whole top row and the bottom row, and the only two circles that we want left remaining on the left hand side are these two, and on the right hand side, this one. So it's up to you, use any selection method you want. I'm going to do a little crossing selection here, on the top row, like that, and then I'm going to right-click and I've got Erase there on the shortcut menu. You can, of course, just hit the Delete key on the keyboard or use the Erase command here on the Ribbon if you wish.
Going to do the same with the bottom row, get rid of those as well, and again, right-click and Erase on the shortcut menu, and then I want to keep these two here so it's these three I need to lose. I could do a Window selection, make sure they're all inside the window like that, and again, right-click and Erase, and then last but not least, I'm just going to select that one and perhaps use the Erase there on the Ribbon. Now the reason I've erased all of those circles is we're going to do a Rotate command over here, and a Scale command over here.
Now what I'm going to do is I'm going to rotate this particular circle here about the center of this circle here, so let's do that first. Now remember, you select the object you wish to rotate. Now the good thing is the Rotate command is also available on the shortcut menu. So you can use your noun-verb selection. You don't have to go up to the Modify panel here, and select the Rotate command here. So I'm going to select this circle here to rotate, and I"m then going to right-click, and select Rotate on the shortcut menu, then I want the base point.
That's going to be my center snap, so make sure that your center snap is on, and that your object snaps are on, and I'm going to click there, that's my base point that I'm rotating around. Now you'll notice there, look, as I rotate now, I'm rotating that about the center of that circle. Now you'll notice down there on the Command line, I've got the choice of Copy or Reference. I'm going to right-click, and I'm going to select Copy so that my original circle is left behind. And then my rotation angle, I'm going to set that to 180 degrees and press Enter.
So you'll see there now that I've rotated this circle with the Copy option, and I've got this circle here. Now, what I'm going to do now is I'm going to rotate both of these circles again using the Copy and the angle method, so I'm going to select this circle now and this circle, and then I'm going to right-click and select Rotate again on the shortcut menu. Base point will be the same center snap there, I click, and as you can see now I can rotate again, but this time I'm going through 90 degrees, as you can see instead of 180.
So I'm going to do the right-click, do the Copy to retain the original two circles, and then the rotation angle this time, I type in 90 and press Enter, and as you can see now, from that one circle there, I've now got four. So that's my Rotate command, again, practice, practice, practice, let's have a look at scaling. I want to make this circle bigger but I want to retain the original circle as well. I want to make this circle twice as big, so I select this circle, and again, the Scale command is available on the shortcut menu.
I can use Scale up here, it's on the Modify panel, there's the Scale command there. So what I'm going to do now is I'm going to right-click and you'll see Scale there on the shortcut menu, just there, Scale, so I make sure that I select that. Now I'm just going to hit Escape there, just to come away, and I'm going to right-click down here somewhere just so we can see that menu a bit more clearly. And you can see Scale there, so I select Scale and it wants a base point. Use the center of your original circle, the object snap, like so, and then it'll prompt you for a scale factor, can you see that there? So as I move that out I can type in a scale factor.
But I've also got the Copy and the Reference again, like I had on the Rotate command. So I'll right-click, and select Copy to maintain the original, and then, I specify my scale factor. I'm going to type in two to make it twice as big, and press Enter and you can see that I've now got a circle that is twice as big as the original circle. So that's Rotate and Scale using AutoCAD. Again, make sure you practice these for your AutoCAD 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.