2012

Merge 3D Faces Indicates whether the file reader interprets adjoining faces
with the same color, layer, and parent as a single item in the Selection Tree.
Clear this check box to keep the entities as separate items in the Selection
Tree.
Line Processing Specifies how the file reader processes lines and polylines.
Select one of the following options:
■ Merge Lines by Color. This option merges any lines on the same layer
or on the same proxy entity that match by color. Use this option when
you want more efficient file processing and navigation.
■ As Provided. This option reads lines and polylines the same way as they
are specified by the original DWG.
■ Separate All Lines. This option splits line elements into separate nodes
for each segment of the line.
Use this option when you need to enhance clash detection analysis. By
default, Clash Detective treats multi-segment entities as a single object,
reporting one clash for each object pair. Ungrouping polyline objects means
that each line segment can be clashed independently from other segments
of the line. As a result, all potential clashes are reported, and not just the
first one found.
IMPORTANT In order for this function to work properly, you need to set the
Model ➤ Performance ➤ Collapse on Convert drop-down to None,
otherwise the polyline objects will be collapsed into a single geometry node.
Convert Off Select this check box to convert layers that are switched off in
DWG and DXF files. They are automatically marked as hidden in Autodesk
Navisworks.
When this check box is clear, the file reader ignores switched off layers.
Convert Frozen Select this check box to convert layers that are frozen in DWG
and DXF files. They are automatically marked as hidden in Autodesk
Navisworks.
When this check box is clear, the file reader ignores frozen layers.
Convert Entity Handles Select this check box to convert entity handles, and
attach them to object properties in Autodesk Navisworks.
When this check box is clear, the file reader ignores entity handles.
Convert Groups Select this check box to retain groups in DWG and DXF files;
this adds another selection level to the Selection Tree.
When this check box is clear, the file reader ignores groups.
798 | Chapter 17 Reference