Some people will remember me as the freaky guy who modelled an AT-AT in Revit 7….updated and looking funky using RAC 2011 graphics.
However, be sure to check this out if you love a bit of Star Wars. :-)
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Showing posts with label Revit 2011. Show all posts
Showing posts with label Revit 2011. Show all posts
Now I’m not going to take credit for this, but some bright spark over at the AUGI forums worked out that you can get Revit to use Pi in formulas..the credit goes to Alfredo Medina for finding this. I am currently working on a panel with a circular aperture.
I wanted to calculate the percentage of the hole, compared to the size of the overall Panel, so as part of this exercise I needed to work out the area of the aperture. So Alfredo says that if you put the following formula in
pi() this will give you 3.14159265 automatically.
He wasn’t wrong….
In knowing this I could then use the following formula to work out the area of the circular aperture.
pi() * Radius ^ 2
So I am not sure when this one sneaked in through the back door, but it sure isn’t documented in the help file. : – )
One little gem that has appeared in Revit 2011 Subscription Advantage Pack AS WELL as SP2 I believe, is the ability to sketch model lines on non planar surface within the concept design environment. You can sketch on a surface with a line, a spline or a rectangle. This has been introduced to assist in the ability to sketch openings when using the CEA (Conceptual Energy Analysis) tool. However, it has many potential uses over and above this. There are three possible parameter options available to you:-
So let me quickly explain what three parameters seem to do.
EDIT:- Heres Zach Kronz reply to what this particular parameter does
Hi David,
The "top down" option makes a bit more sense when you use something that has a less steep slope. When using this setting, your rectangle will resolve into a right angle rectangle when seen in plan. It gets a little whacky in situations like you are showing, but it is essential a vertical projection of a rectangle.
It becomes clearer, once you divide your surface and enable the UV lines, as in the example below.
- Top Down
- Parallel to Level
- Follow Surface UV
So let me quickly explain what three parameters seem to do.
Top Down
The Top down parameter seems a little bit of a mystery to me, but having experimented with it a little, when you draw rectangle it seems to deform to the surface following the UV lines, but at the same time the points snap to the edges. I actually don’t think I have fully understood this and I know my Autodesk friends read this blog, so I am sure they will pipe up and hopefully provide true explanation for this parameter. Ladies and Gents?EDIT:- Heres Zach Kronz reply to what this particular parameter does
Hi David,
The "top down" option makes a bit more sense when you use something that has a less steep slope. When using this setting, your rectangle will resolve into a right angle rectangle when seen in plan. It gets a little whacky in situations like you are showing, but it is essential a vertical projection of a rectangle.
Parallel to Level
If you draw a rectangle on a surface, the rectangle will always remain parallel to a level it references. Notice in the image below that the rectangle is a true rectangle, the top and bottom edges are parallel to the level and the side edges are perpendicular to the level, @ 90 degrees.
Follow Surface UV
Now do the same exercise as above, but this time change Follow Surface UV and draw a rectangle. This time you will notice that the rectangle will follow the natural UV flow of the surface.
It becomes clearer, once you divide your surface and enable the UV lines, as in the example below.
Following the formal release of the Subscription Advantage Pack for Revit 2011, which is now available for download from the Subscription Centre, additional information and videos have been released by Autodesk to explain in detail the functionality. Take a look at these if you want an in-depth look.
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=15731389&linkID=9243099
Got an email from Matt Jezyk and Lira Nikolovska from Autodesk today about a forthcoming event you may be interested in. It a series of workshops at the upcoming ACADIA conference in New York City, scheduled October 18-20th 2010. The Summary of the event is below:-
The 3-day Conceptual Design workshop will explore the new Revit conceptual design workflows, specifically parametric modelling and performative design using Autodesk® Revit®. The first two days of the workshop will focus on the ins and outs of the new form making and manipulation tools including creation of parametric rigs to drive and modify form, surface panelization, reporting parameters and adaptive components. The second part of the workshop will focus on analysis applied early into the design process (conceptual energy analysis, solar radiation, use of structural analysis plug-ins), and will also provide overview of API features such as Analysis Visualization Framework and Dynamic Updating.
More details can be found here…
http://www.acadia.org/acadia2010/
If you are in and around New York at that time, you may want to consider signing up, especially if you want to understand Revits conceptual tools much better.
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