Navisworks has the
function to create search set to query your graphical data bases. I've been
using Navisworks to perform clashes detection of services vs. a proposed light
rail track slab. The pipe layers have be
predefined with the pipe orientation to the track slab . Therefore there would
be 3 predefined possibility of crossing
the track slab, parallel to the track slab with in a predefined criteria offset
and the third that it falls outside of Crossing or Parallel. Example of such a
search would be to find all drainage pipes that are Crossing the track slab.
The search would
look like the image below, for drainage find all pipes that are crossing the track slab.
Another search would
be a pipe parallel to the track slab with in a predefined criteria offset. The first two search are simple query because
your able to search for a key string(Crossing or Parallel) in the search set. The third query would be search for every
thing that is not Crossing and Parallel. Well this is where there is not a
predefined condition of "does not contains" Crossing and Parallel.
To
create a does not contain query you first have to find the elements that you
want to filter out.
Find
Item Layer Contains "Crossing"
Find
Item Layer Contains "Parallel"
The
above to lines need to be Negate Conditions.
Next
you still need Navisworks to search for the remaining items.
- Find Item Layer defined
The end result is
you now have a does not query.
