Posts tagged Model

Revit TotD – 2.19.10 | Dimension Formulas

Gonna finish up the week with a very easy tip, yet very powerful for those complicated designs that use all those mathematical formulas and what not…

Hopefully, by this point, you know that you can simply enter a length to determine a wall or line length, or really anywhere you can input a dimension.  Simply type 100′ and hit enter et voila! 100′ of whatever you were placing.  Did you know, however, that you can do the same thing but with formulas!?

It’s very simple.  Instead of typing the normal dimension in like this:

You instead begin it with an ‘=’ like this:

You can use any formula context that revit allows.  I would suggest searching in help for “formula” to find out the terms and syntax that you can use.

Like I said, simple and quick, just like we like it here at!  Hope you learned something, and thanks for stopping by.  Hope to see you again soon!

-Carl Gibson

Revit TotD – 2.15.10 | Through the Linking Glass, part1

I’m slowly but surely trying to recover from moving and settling into a new job.  I’m having to force myself to sit down and make time for RevitTotD, but I’m glad I do it every time that I do!  This week, I’m going to have 3 tips… that’s all there is to it!  Baby steps, baby steps!

Linking models is fairly straightforward.  It’s when you need to start customizing how the model needs to look in different views for consistency with the main model that you start to get deep in to those infamous nested Autodesk dialogues!  So how do we start customizing?  Like so…

There are three types of visibility graphics control for linked models: By Host, By Linked View and Custom.

You access these settings through the Visibility Graphics (‘VG’) dialogue > Revit Links tab

In this tip, I’m going to cover By Host View and Custom.  Part 2 of this tip will cover the By Linked View option.

By host view is by far the easiest way to control your graphics.  It’s as simple as turning categories in your main model on and off as you normally would in the VG dialogue.  If you want the walls in your model AND linked view to be hidden, simply turn them off the in VG dialogue.

What if you need the walls and floors in your link to be off, but you want to leave them on in your main model?  Ah, this starts to get slightly trickier, but is still accomplished with only a few clicks.  First, you need to set your link to Custom mode in the VG dialogue. NOTE: These settings are BY VIEW!  Setting this up in one WILL NOT affect other views, this is where view templates come in to play 🙂

Depending on the category you want to control, go to that respective tab (walls and floor = model categories, levels = annotation categories) and set those categories to Custom as well.

Click OK a couple of times and see the results.  Notice our main model walls are visible while our linked model walls are not.

Same concept applies to the Annotation Categories.  Let’s say you have redundant levels in your linked model and don’t want them showing up in your main model.  Same as above, but simply go to annotation categories and turn off levels.

Well, that was quite a mouthful for one tip!  So, mull around on that for a day or two, and then come back for part2 of this tip when we talk about the By Linked View options which REALLY let’s us customize every bit of the linked model.  Thanks for stopping by, and I hope to see you again for yet another Revit TotD!

-Carl GIbson

Revit TotD – 8.4.09: +++ [RAWR I’M THE REF PLANE] —

If you don’t get the title of the tip, that’s OK.  It’s easier just to say that it’s hard to explain if you don’t already understand, but at the same time it’s not necessarily a bad thing if you don’t.  Either way, I’m guessing that there’s a little tip that you didn’t know.  The one that tells you which side of a reference plane that extrusion is going to actually extrude from.  Ever heard of it?  No!?  Well here goes.  This is, in my humble opinion, another short but AWESOME little tip!

The +’s and -‘s of Reference Planes:


If you create an extrusion (for instance) on this reference plane that you just created, you know now which way the extrusion is going to go if you assign an extrusion start of 0 and end of 5′ (for example).  Any positive part of the extrusion will be ABOVE this reference plane and any negative part of the extrusion will be BELOW the reference plane.  Now you don’t have to guess which way the Extrusion is going to go and you can make sure that you don’t have to use negative calculations in your formulas to control certain extrusions now.  So from now on, you’ll be paying a bit more attention to how you draw your reference planes, eh!? The series of reference planes below were drawn in a clock-wise order and direction.



So there you have it; short, sweet and yet another incredibly powerful arsenal to your bag of tools.  Hope you enjoyed and hope to see you again for another, Revit TotD!



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.


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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