Join Paul F. Aubin for an in-depth discussion in this video Managing dimension lines, part of Revit: Tips, Tricks, and Troubleshooting.
- Dimensioning the views in your Revit project can take a lot of time. So, having a few tips at your disposal to help speed up the process of dimensioning your drawings can certainly be helpful. So in this movie, I'd like to share with you a few helpful tips for working with dimensions. And let's start by zooming in down here on this series of dimension strings that I have at the bottom of this plan. Now, the outermost dimension is an overall of the entire building. Then I have one that the next one in, that just dimensions the major building masses.
So I've got sort of three building masses there with the little bump in the middle there. The next one in, includes the column grid lines. Okay, so you can see the different grid lines are included in the dimension. And then the final one, dimensions all the openings and penetrations within the walls. Now when you look carefully, particularly right here in this middle bay, you can see that there is some redundancy. So, you maybe didn't notice that when you first placed a dimension and now you're looking at that and you're thinking well, I don't really need to show this dimension twice.
So the best place for that middle dimension to appear is on this second string right here. So we're going to leave it there, but what I'd like to do is remove it from here. So, there's a real easy way to do that. And without knowing this trick, you might be tempted to delete the dimension and redraw it, or if you know how to do Edit Witness Lines, which I'll show you in just a moment, you might be tempted to actually use the Edit Witness Lines here. But in both cases, those both techniques are actually a lot of work. This one is much simpler.
So, highlight the segment that you want to remove, and then press Tab. That will highlight just that segment line, now click. With that segment line selected, press the Delete key on your keyboard, and it will remove that dimension line from the string. And what you're left with is two separate dimension strings now in place where there was one. So that's going to be the much faster way to make that modification. Now if you change your mind, and you need to put those two dimensions back together again, there really isn't any easy way to do that.
If they really needed to be a single dimension string, you'd have to delete one half and re-add to the other half. How would you do that? Well, you would actually delete this dimension right here, let's say, and then select this one and use Edit Witness Lines. Now with Edit Witness Lines, you're actually adding or removing witness lines from the existing dimension. So if you look carefully, you'll notice that each of the witness line locations of the existing dimension in the model are highlighted in your selection color.
In my case, in a blue color, and you can probably see that best right here with this edge of the wall. So if I click on that edge of the wall, it actually removes that from the dimension. If I click it again, it adds it back. So any point that you click, either adds or removes depending on whether it's already part of the dimension. So, I can add this one, this one, this one, and finally that one. So, it's certainly going to be faster to do that than to start all over again and recreate the entire dimension, but it is still a little bit more effort.
So removing the segment is by far faster, but adding them back in again takes a little bit more doing. Now you can remove segments this way as well, but the big difference between Edit Witness Lines and deleting a segment is, with Edit Witness Lines, you're adding and removing from that dimension string, you can't pull it apart into multiple dimension strings. The only way to do that is by tabbing in and deleting as I showed you. To get out of Edit Witness Lines, this is very important, click an empty white space. Don't press Enter, don't press Escape.
Neither of those is going to do the trick. Just like when you create the dimension in the first place, you have to click an empty space to complete it. Now let me show you two more really quick techniques that you can use with your dimensioning. Notice right here that I have a really narrow window in a two foot dimension, but it didn't fit comfortably between its witness lines. Well, all you have to do is kind of pull that text out and away from that location to make it more legible. Got the same problem right here. So all you do is select the dimension, a small little grip appears, and you just sort of pull that away, and pull that away.
The shape of this leader and whether or not it has any kind of an arrowhead at the end, is controlled in the Dimension Type. So if you go to Edit Type, you've got the Leader Type right here and you can choose from Arc or Line, and then you've got your list of arrowheads right here that you can choose from to terminate that leader line. And the final thing I'd like to point out is, I need a dimension over here on the right hand side of the plan. Now before I get sort of carried away and start picking witness lines one at a time and kind of creating this dimension manually, there is a faster way.
So I'm going to press Escape to cancel that dimension and let's always remember to look at our Options bar. Because on the Options bar, we've got some really handy features when working with dimensions. So first of all, you can choose what you're dimensioning. The faces of the walls, the centers of the wall, the cores. I'm going to stick with wall faces. Next, you can choose between individual references or the entire wall. So I'm going to choose Entire Walls, and that makes an Options button available here.
If you click that, you can configure in more detail, what about the entire wall you want to dimension. If you un-check this, it's just the wall itself, but with this checked, I can also get all of the openings. Then you could choose between Centers and Widths. You see here that I've chosen Widths, so I want the opening size of the windows and doors dimensioned. You could do the intersecting walls. So if you're doing an interior dimension, you might want to check that, and then it would include all of these walls here. I'm doing an exterior dimension, so I'm not going to check that.
But you could also include any column grid lines, by checking the Intersecting Grids. Let's click OK and now with a single click of this wall, it will create the entire string of dimensions, including all of the openings and the grid lines and then another click to place the dimension. So when you're placing dimensions in your Revit projects, having a few of these tips at your disposal can really help speed up the process and make the whole dimensioning experience a little bit more efficient and certainly a lot more enjoyable.
NOTE: The exercise files for this course can only be opened in the most recent version of Revit (Revit 2017).
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