The need for a tool that can give a visual representation of slopes in revit was asked for by Shrikant Heerekar in this thread over at the Dynamo forum. And both me and Vikram Subbaiah responded with quite similar methods, although Subbaiah developed a far more concise and stringent definition by using designscript. Be sure to check out his website here.
I'm gonna show you a little bit of both.
First up is a node based definition. (It includes the Mesh.FaceVertices node from the Clockwork package.)
EDIT! I forgot to mention that you will have to turn of preview of the original surfaces for the colors to be visible. It's a known bug and they will fix this in future releases.
The next one is a codeblock/designscript based version which is based, or rather directly ripped of, Vikram Subbaiah's version except I have pulled out some parameters.
so that's basically it. Here is a screencast for anyone into bad english pronounciation.
If anyone have other great ideas for using this, let me know!
Building positioning by using Optimo, anyone? :)