Archive for September, 2008

Bòrked Wall Profiles

I have noticed in a lot of projects I end up cleaning, that people tend to misuse wall profiles. What I end up running across most commonly is a wall that may have needed to be profiled at one point, but is no longer profiled, or a wall that has had the profile sketch moved from the reference lines of the wall (image coming up shortly).

Like everything else in revit, profiles do require a little bit of planning and should not just be the result of rushing into the Edit Profile tool because you need the wall to act differently. Some things to keep in mind when you need to edit the profile of a wall:

  • When someone drags the wall ends, should the length change?
  • Is this a fixed shape that is completely unconstrained from the original wall profile?
  • Does the wall height need to be controllable from the wall property dialogue?
  • Does the wall need to join cleanly with other walls around it?

Let’s take one specific case as an example. I have a wall that is not joining properly where a profile sketch has been applied to a wall.

Obviously this won't work on an exterior wall... let's fix it!

The first thing we note is that when we select the wall on top, it shows that the profile edge of the wall and the reference edge of the wall do not match. While this does not necessarily mean that something is wrong, it was my first clue as to what the culprit was. This is the shape the wall was in when I encountered it.

These arrows show where the wall reference (dashed green)  is versus where the wall profile is (red stops)

These arrows show where the wall reference (dashed green) is versus where the wall profile is (red stops)

When we edit the profile of this wall, we see what the issue is. None of the sketch lines are locked to the reference lines of the original wall shape. This means that Revit really has no clue what to do with the wall edge now, so it just leaves it alone without connecting to anything.

So now what? Well, we want to preserve our original profile lines, because those are correct, but we want to retain the locks to the reference lines so that Revit can handle wall joins properly. So to start off, we need to copy the profile sketch lines. So we select the wall and go into profile sketch mode by selecting “Edit Profile.” By selecting one of the lines, you can see that they are not locked to the reference plane on the right, which is the plane that indicates the side of the wall forming the join we are looking at. Go ahead and select all of the sketch lines (favorite tool! Hover over a line and hit tab once to select the entire loop of lines!) and copy them to clipboard (Ctrl+C).

Select the profile Lines and Ctrl+C

Select the profile Lines and Ctrl+C

We need to remove the sketch from the wall now, but before you do that you want to make sure that the constraints of the wall are such that you will not lose any inserts or conflict with too many other walls. Once you have checked this, go ahead and select the wall again, and remove the profile sketch by clicking “Remove Profile” in the options bar.

After we remove the sketch profile, you see what the original wall looked like.

After we remove the sketch profile, you see what the original wall looked like.

The wall from a 3D view.  You can see where we're missing some wall!

The wall from a 3D view. You can see where we're missing some wall!

Now we want to add the original profile shape back to the wall. Select the wall one more time, ente rsketch mode by clicking “Edit Profile.” Before we continue, select one of the profile lines here. Notice that not only are the lines on top of the reference lines for the wall, but they are locked. This mean that when the constraints (top, bottom, or length) of the wall change, these lines move with those reference planes. We want to preserve these locks in order for Revit to properly join the walls.

These are the locks that were missing before.

These are the locks that were missing before.

Go ahead and paste (Ctrl-V) the lines back into the sketch.
Ctrl+V

Ctrl+V

Move the lines that are different from the original lines into place. I usually pick a common point to anchor from, in this case, the bottom left corner of both loops are in the same place, so I start my copy from that point, and end the copy on that same point on the new loop (the video shows this much better). Be sure you disjoin the lines so that the original loop doesn’t stretch!

Be sure to disjoin the lines so they don't bring the endpoints of connected walls.

Be sure to disjoin the lines so they don't bring the endpoints of connected walls.

Remove the remainder of the lines you pasted in and finish the sketch!

That's much better!

That's much better!

Congrats! That wasn’t so tough was it?

Here is a video of this procedure:
Hope you found this helpful!

Linked Model Multitasker

Ever found yourself working on a model with models linked in and you need to make some modifications to the linked model?  You go to open the linked model and you get that annoying message that tells you the model is open already and will be unloaded from the other model if you continue.  This is the point at which new revit users mumble under their breath “This wouldn’t be a problem if we were using AutoCAD.”

Fear not, here’s a simple little tip that should ease the burden of making quick changes to linked models.

Ready?

You sure you won’t be mad when you see the simplicity of this little tip?

OK, here goes:  Open another instance of revit, load the revit model that you want to make the change to… wait… waaait… and there you go!  You now have both models open at the same time without unloading one model from the other in order to work on it.  Now to update changes, you simply need to save the model, then reload it in the other model through the Manage Links tool.

Happy Reviteering!

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