2009

There are several different tree icons representing the types of item that make up the structure of a
model:
A model, such as a drawing file or design file.
A layer or level.
A group, such as a block definition from AutoCAD or cell definition from MicroStation.
An instanced group, such as an inserted block from AutoCAD or cell from MicroStation. If in the
imported file the instance was unnamed, NavisWorks names the instance to match its child's name.
An item of geometry, such as a polygon.
An instanced item of geometry, such as an instance from 3D Studio.
A composite object. A single CAD object that is represented in NavisWorks by a group of geometry
items.
A search. Behind the scenes, NavisWorks is searching the model for all items with a property of this
type and sets up the find specification to repeat this search if the selection set is saved. See “ Selection
and Search Sets ” for more information on this.
Each of these item types can be Hidden (gray), Unhidden (dark blue) or Required (red).
Note:
If a group is selected as Hidden or Required then all instances of that item will be hidden or
required. If you wish to operate on a single occurrence of an item then you should make the
instanced group (the level above, or the "parent", in the hierarchy) Hidden or Required.
You can use the selection tree in combination with the main navigation window to select items into the
current selection, which is highlighted in both the selection tree and the main navigation window.
Note:
Using the Shift and Control keys while selecting items in a selection tree will do the standard
Windows™ multiple selection: Control allows multiple selection item by item and Shift allows
multiple selection between the first and last items selected.
Interactive Selection
NavisWorks provides several methods to interactively select items into the current selection. You can use
the tabs in the selection tree, select items in the main navigation window with select mode, and you can
select other items with similar properties to an existing selection using the selection commands.
Note:
Presing Esc deselects everything.
Select Mode
Selecting Items
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