When exporting
data from Revit to Navisworks, sometimes parameter data may not appear. For
example, Figure 1 shows a pipe create in Revit along with a sampling of some of
the parameters associated with the pipe. Figure 2 shows the pipe in Navisworks
(exported using the Revit Navisworks exporter).
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| Figure 1 - Revit Parameter View for
Pipe |
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| Figure 2 - Navisworks Parameter View for the Selected Pipe |
The first reason that the
parameters may not be coming across from Revit is with the export settings.
Make sure that Convert element
parameters and Convert element
properties are both enabled.
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| Figure 3 - Revit Navisworks Exporter Settings Dialog |
|
The second potential reason for
parameters not coming across or displaying is due to the
selection
resolution (Figure 4) in Navisworks. When you select an item(s) in
Navisworks, it doesn’t know what level/area of item to start selecting in the
project browser. It could be at the model, layer, instance, group, or geometry
levels. Navisworks provides six different resolution settings (From the
Navisworks Help):
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| Figure 4 - Navisworks Selection
Resolution Options |
- File.
Makes the object path start at the file level; as a result, all objects at
the current file level are selected.
- Layer. Makes the object path start at the layer node; as a
result all objects within a layer are selected.
- First Object. Makes the object path start at the highest level of
objects below the layer node, if applicable.
- Last Object. Makes the object path start at the lowest level of
objects in the Selection Tree. Autodesk Navisworks looks for composite
objects first, and if none are found, the geometry level is used instead.
This is the default option.
- Last Unique. Makes the object path start at the first unique level
of objects (not multiple-instanced) in the Selection Tree.
- Geometry. Makes the object path start from the geometry level in
the Selection Tree.
-
For example, Figure 5 shows a single element selected with
the Selection Resolution set to Geometry. Note that in the project browser, the
geometry level is highlighted and we have limited parameter data available in
the properties palette. Figure 6 shows the same pipe selected as in Figure 5,
but with the Selection Resolution set to First Object. Note that in the project
browser, the selection starts at the highest level for the object selected (the
pipe) and in the properties palette we have much more data about the object.
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| Figure 5 - Geometry Resolution Setting
& Properties Shown |
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| Figure 6 - First Object Resolution Setting &
Properties Shown |
