Revit Tutorial - Walls the Follow Topography (Intersection Method) #RTCUSA

As I mentioned earlier I was fortunate enough to attend 2 out of 3 of Marcello's RTC classes.  The second, and final, class is when he introduced the intersection method.  It is one of those things where after you see it you say, "Duh!  Why didn't I think of that?!".  Well, Marcello was nice enough to post a little tutorial explaining how he used the intersection method and another little workaround to make the bottom of a wall follow the topography lines in Revit...

Click here to see the tutorial....

Oh, and I urge you all to follow his blog.  It might not have 3 posts a day but the quality of every post is worth a look...  I mean, just look at this image of his Revit cow....  Insanity.

Revit Tip - Short Wall Not Cutting

This was an interesting bug (or is it a bug) that was discovered while I helped a colleague on a project.  The building had a condition in which each classroom had a 4'-0" tall wall.  We wanted to show new walls with a poche (solid) fill.  The cut planes for the view were set to 3'-6"... The wall properties were set to the Top Constraint being "Unconnected" and the height was set at 4'-0".   The wall WOULD NOT show as cut and poche'd.  Well, upon further investigation it appears walls act funny with cut planes...   

In the image above the cut plane for this view is set to 3'-6".  The Walls on the left are set to "Unconnected" and their respective heights are underneath.  The walls on the right have a top constrain of "Level 2" which is set at 10'-0".  The walls on the right are then negatively offset.

Notice that the walls to the left, even though the cut plan is set at 3'-6" will not show as cut until they are at least 6'-0" tall!  While the walls on the left are the exact same height but are shown as cut because of their top constraints...

Weird??  I think so.

*** Edit ***  It looks like this is a "feature" in Revit called "Low Wall"...  Why...?