Join Paul F. Aubin for an in-depth discussion in this video Mirroring groups to create a layout, part of Revit 2018: Essential Training for Architecture (Imperial).
- [Voiceover] Once you have a group representing a typical portion of your floor plan, you'll probably want to copy it around to other locations where it occurs. Now we could use a variety of copy techniques, the Copy + Command, Copy to Clipboard, but in this movie I'd like to demonstrate duplicating this group using the Mirror command. So, I've got a single instance of my two-bedroom condo unit group right here with its attached detail group in there. And what I'm going to do is select this instance of the group and I want to mirror it to create the next copy.
Now there's actually two mirror commands: there is Mirror Pick Axis and Mirror Draw Axis, and we'll do both of them in the movie. I'm going to do the Pick Axis first. The way Pick Axis works is you simply select some object that happens to be in the middle between your existing object and your new copy. So, for me, that's going to be this wall right here at the top of the plan. When I click, it will mirror the existing group up into the upper portion of the floor plan. Now, notice that the wall that is between them that I used as the Mirror Axis is highlighted in orange and a small message, a warning message appears down at the bottom corner of the screen.
This message can be safely ignored. In fact, if you click an empty space, it'll just go away. But before I dismiss it, I just want to talk about what it's saying. It's telling me that I have two overlapping walls. Now, the way that I can see that is to actually come in here and zoom in on that location. If I deselect the group, you can kind of see what it was talking about here that it doesn't look so nice at the joined conditions here. That's because you've got two walls in exactly the same spot. Now, even though that warning disappeared and it was easy to ignore it, you do want to be careful.
If you ignore the warnings and don't really pay any attention to them, eventually they can start to pile up. Now, if I go to the Manage tab, I'll know that I have unresolved warnings in my project because this Warnings button will be available here on the Inquiry panel. If I click that, it's going to repeat that message. So if you click too quickly and the message went away, and you want to see where it is, that's all you have to do is click the Review Warnings. Then you can expand this, and it will tell you that you've got two walls right here that are sitting on top of one another.
So I'm going to close this warning. Now how do I resolve that warning? Well, here's a really powerful feature of groups. Highlight one of the groups, press the Tab key, it'll highlight the next group that's sitting on top of it. Press tab a second time, and it will now reach right into the group and allow you to touch the individual wall. So all I have to do is click on that wall, and you'll see this small little icon appear right here which allows me to exclude this item from the group.
So when I click that, it will resolve the problem because now there's only one wall in that location. Now I'm going to prove that to you by deselecting, select the group. I'm going to go to the Move command, click any old point, and click any old point to kind of just move that object away. Now I don't really care about this warning right now. It's complaining about this bedroom which is no longer enclosed, but I'm going to dismiss it by just clicking anywhere. I want you to see very clearly that we now have a missing wall there in the group instance at the top.
Now I'm going to undo that to put them back together so that you can see that this wall in the middle is now being shared between the two groups. Now also notice that here on the Inquiry panel, the Review Warnings button is now grayed out because that warning about two duplicate walls no longer applies. That warning has been resolved. So that's how you can verify that that's the case. Now I'm going to type z + f to zoom to fit, and I'm going to select both instances of the group this time using my Control key. So over here, it'll tell me that I have two model groups selected.
This time I don't have any geometry in the middle to use as a Mirror Axis, so what I'm going to do instead is do the Draw Axis option and just pick any start point, pull straight down, and pull any new point as long as I'm going along a 90 degree. Then it will take those two groups and mirror them off to the right. Now, they're a little bit too far apart, so I'd like to pull them in closer together. When you have more than one element selected, temporary dimensions won't display on there own.
However, on the Options bar, there's an Activate Dimensions button. If you click that, that's exactly what it will do. Now, ignore the flurry of dimensions that occurs here in the middle. What I want to focus on is this one down at the bottom because this is the distance that I want to modify. I'm going to change that to 10 and press Enter. Notice that that will pull those two groups from the right over a little bit closer and set that 10 foot space there in the middle. I'll go ahead and deselect it, zoom out a little bit, and select each of these three instances of the groups.
None of them have tags right now. I can click the Attached Detail Groups button, check the Floor Plan Tags box, and click OK to add tags to all those instances. So as you can see with just a couple of Mirror commands, we can take a single instance of a group and create the entire floor plan for this condominium building. Now in future movies, we'll add the stairs and the other elements in the corridor, but this is how we can very quickly take a group and use it to create an overall building layout.
First, get comfortable with the Revit environment, and learn to set up a project and add the grids, levels, and dimensions that will anchor your design. Then author Paul F. Aubin helps you dive into modeling: adding walls, doors, and windows; using joins and constraints; creating and mirroring groups; linking to external assets and DWG files; and modeling floors, roofs, and ceilings.
Paul also shows advanced techniques for modeling stairs and complex walls, adding rooms, and creating schedules. Finally, discover how to annotate your drawings so all the components are clearly understood, and learn how to output sheets to DWF, PDF, or AutoCAD.
- Understanding BIM and the Revit element hierarchy
- Navigating views
- Creating a new project from a template
- Adding walls, doors, and windows
- Adding plumbing fixtures and other components
- Linking AutoCAD DWG files
- Rotating and aligning Revit links
- Working with footprint and extrusion roofs
- Adding openings
- Adding railings and extensions to stairs
- Creating stacked and curtain walls
- Hiding and isolating objects
- Adding rooms
- Creating schedule views and tags
- Adding text and dimensions
- Creating new families
- Using reference planes, parameters, and constraints
- Plotting and creating a PDF