2009

Table Of Contents
These are terms specific to NavisWorks that are used in relation to selecting items.
Composite Objects
A composite object is a group of geometry that is considered a single
object in the selection tree. For example, a window object might be made
up of a frame and a pane. If a composite object, the window object would
be both the frame and the pane and be selected all at once.
Instances
An instance is a single object, which is referred to several times within a
model, for example a tree. This has the advantage of cutting down on file
size by not unnecessarily repeating an object.
Item Name
The original CAD or NavisWorks assigned identifier. Any item can have a
name and this name will usually come from the original CAD package
that the model was created in.
Item Type
Every item in NavisWorks has a type. Examples of types are reference
files, layers, instances (sometimes called inserts) and groups. Every
CAD package also has a number of geometry types, for example,
polygons, 3D Solids and so on.
Selection Resolution
The selection resolution is the level in the selection tree you start
selecting at. You can cycle through items in the tree by holding down the
shift key during a selection.
User Name and Internal Name
Each category and property name has two parts - a user visible string
which is localized and an internal string which isn't and is mainly used by
the API. By default when matching names in the Smart Tags and Find
Items dialogs, both parts must be the same, but you can use the flags to
match only on one part. You might use ignore user name if you wanted
to match something irrespective of which localized version was being
used.
Viewpoint Terminology
Angular Speed
The speed that the camera moves when turning right and left in any
navigation mode.
Aspect Ratio
Aspect ratio is the proportion of x-axis to y-axis size. For example, in
exporting a bitmap of a viewpoint, maintaining the aspect ratio would
keep the proportion of the view even if the number of pixels was
different.
Anti-aliasing
Anti-aliasing improves image quality by softening the jagged edge
appearance of sharp lines. 2x to 64x refers to the extra number of frames
that are required for the anti-aliasing process. The greater the number of
frames, the finer the effect, (with the consequent increase in rendering
Glossary
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