2012

On Load
Collapse on Convert Collapses the tree structure on the Selection Tree to
the specified level when native CAD files are converted into Autodesk
Navisworks. Select from the following options:
■ None - the tree is fully expanded. Use this option to enable splitting
polylines into individual segments when importing DWGs and DGNs to
support multiple clash intersections. For DGN files, you also need to select
File Readers ➤ DGN ➤ Split Lines check box, and deselect File
Readers ➤ DGN ➤ Merge Lines and Arcs check box. For DWG files,
you also need to set File Readers ➤ DWG/DXF ➤ Line Processing
drop-down to Separate All Lines.
■ Composite Objects - the tree is collapsed up to the level of composite
objects.
■ All Objects - the tree is collapsed up to the level of objects.
■ Layers - the tree is collapsed up to the level of layers.
■ Files - the tree is collapsed up to the level of files.
This enables performance to be prioritized over structure/properties and has
the added benefit of improving streaming by cutting down the logical structure.
NOTE Although Autodesk Navisworks tries to collapse items to the fewest number
possible, it may be necessary to prevent collapsing in some cases to preserve model
fidelity. For example, if an item has properties or materials unique to itself, then
collapsing would endanger this information, and therefore it will not be collapsed.
Close NWC/NWD files on Load Indicates whether NWC and NWD files are
closed once they’ve been loaded into memory.
When you open NWC/NWD files, Autodesk Navisworks locks them for editing.
By selecting this check box, you instruct Autodesk Navisworks to close NWC
or NWD files as soon as they’ve been loaded into memory. This means that
the files can be opened and edited by other users while you are viewing them.
Create Parametric Primitives Select this check box to enable creation of
parametric models (models described by formulae not vertices).
Using this option allows you to get better looking visuals, faster rendering,
smaller memory footprint (especially, when loading DGN and RVM files with
significant amounts of parametric data that no longer need to be converted
into vertices in Autodesk Navisworks).
NOTE Modifying this option takes effect when you next load or refresh file.
300 | Chapter 13 Reference