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View Full Version : Slope Arrows, Floors and Parking Structures



phyllisr
2006-03-19, 11:05 PM
First, we have found that when we leverage the Copy - Paste Aligned routine with slabs wherein we have added slope arrows that the slab itself "remembers" the level but the slope arrow "remembers" the original location and creates an offset. Is there a way to avoid having to manually change the slope arrows and insure the relationship remains to the level? How are the rest of you doing this?


Example:

Sloped slab at Level 01 (elevation 100'). Slope Arrow from Level 01 to Level 01A (elevation 102'). Copy this slab and paste aligned to Level 02 (elevation 112'). Level 02A (elevation 114') is in place. Slab knows it is at Level 02 as expected but the slope arrow thinks it is offset 12' from Level 01 and 12' from Level 01A instead of finding 02 and 02A. Further, this offset "deviation" confuses the parking stall location when using the same Copy - Paste Aligned routine. Sometimes, the stalls attach themselves correctly to the floor (hosted as desired) but sometimes, they end up floating all over attached to a level instead of a floor and we must find them and manually set the floor host.

Second, we are struggling with a few specific areas identified in the three attached clips. We created this structure with floors and slope arrows and are 90% satisfied. The areas in red (both the isometric and section) are a real challenge. The cross-over only happens on two levels but the little bump is on them all. Any suggestions about a better approach to get this final warping correct on the two affected levels? Slope arrows are not giving us enough flexibility.

Third, this is a huge plan region challenge. With so many levels and the scissor design, we are looking at at least 5 plan regions for each of the seven levels. Since the regions are view-specific and we have at least two views for every floor just for schematics, it's a daunting management task. As we move to DDs, it will only get worse. Anyone with tips or techniques who has done a scissor structure? Any way to link plan regions between views short of the Copy - Paste options? Is there an easier way than plan regions?

Thanks in advance,
PBR

PS
For what it's worth, the more conventional structure we are doing was a piece of cake in Revit - took about an hour and a half to test parking counts. There is also some comfort in knowing that doing the scissor structure in ADT is impossible - being at 90% in Revit is pretty good despite the inevitable :banghead: frustrations with the last 10%...

Wes Macaulay
2006-03-20, 07:15 AM
Ha -- I've been waiting for a post like this.

Modeling carparks is very time consuming -- especially if the slab slopes in two directions. I've pretty much given up on trying to model this in Revit, and like you have modeled the basic slope of the aisle centreline and left it at that.

With regards to the plan region issue we're using a workset for each level -- P6, P5, P4, etc. and turning them off in each view and setting the cut plane up high enough that the entire slab for the level appears as we want. We still have to use plan regions to show stair and elevator locations with their cut planes at the right height to show doors, etc. I don't know if this will be an easier approach than what you're doing.

The literal nature of Revit's drawings shows how symbolic architectural drawings have been up until now, doesn't it? Buildings with numerous or sloping levels are a pain for any virtual building application.