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Description

1. Select Slabs- the slab(s) that will be modified
2. Selected Hosts- will automatically select a nearby host (will default to last used Host, can also change the default host type in Slab Settings). Click Change to change the selection.
   • Select From Link- this will allow you to select a host element in a Linked Revit file.
3. Exterior Point Points to Add:
   1. None- this will still modify minimum boundary points, but will not add any more
   2. Add at Intersecting Contours- also adds points along boundary where topo contours intersect the slab
   3. Add at Specified Interval- also adds points along boundary, at set interval
4. Interior Points to Add:
   1. None
   2. Interior Points with Slab- adds interior host points to the slab
   3. Interval along Topo Contours- adds interior points along the topo contours, at set interval
5. Specify point interval- this is the frequency of points to add along the edges of the slab (this is used in methods 3c and 4c).
6. Offset- this will offset the slab up a set amount. There are 4 preset offsets (top/top, top/base, base/base, and base/top) and a custom offset to offset a custom amount.
   • Top flush- this will keep the tops of the slab flush with the top of the host.
   • Offset above- this will offset the entire slab above the host.
   • Base flush- this will keep the base of the slab flush with the base of the host.
   • Offset below- this will offset the entire slab below the host.
   • Custom offset- this allows for a custom offset (up or down from 0, which is the top flush)

• Reset Slabs- when checked, this will reset the points prior to calculating and prior to Drape. Note: this will increase the time it takes to calculate points.
• Excavate Slabs- (only available in R25+) when checked, this will excavate the draped slabs from their host(s).

Slab Settings

Examples

• 1. Drape Slab on Topo
• 2. Drape and Excavate Slabs

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