Related Topic
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Exporting to CAD Formats
on page 1273
Layer Settings
In the
Export Options
dialog, click Layer Settings to access the Export Layers dialog. From this dialog, you
can load an existing layer mapping file, create a standard layer mapping file, or customize layer mappings.
For more information, see
Exporting Layers
on page 1285.
Layers and Properties
For Layers and Properties in the
Export Options
dialog, select a value to control how to export object styles
from Revit Architecture to AutoCAD 2009 (or other CAD applications).
NOTE
You can define Layers and Properties when exporting to DXF or DWG. These options are not available
when exporting to DGN or SAT.
When you export a Revit view to DWG or DXF, each Revit category is mapped to an AutoCAD 2009 layer,
as specified in the Export Layer dialog. In AutoCAD 2009, the layer controls the display of the entities (Revit
elements), including their colors, line weights, and line styles. In Revit Architecture, you define object styles
in the Object Styles dialog. (See
Object Styles
on page 484.) The Layers and Properties setting determines what
happens to a Revit element if it has attributes (object styles) that differ from those defined for its category.
In AutoCAD 2009 and in Revit Architecture, view-specific element graphics are referred to as overrides.
Select one of the following values:
■
Category properties BYLAYER, overrides BYENTITY
. When a Revit element with view-specific graphics
is exported, in AutoCAD 2009 those differences (overrides) are applied to the individual entity, but the
entity resides on the same layer as other entities in the same Revit category or AutoCAD 2009 layer.
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All properties BYLAYER, no overrides
. When a Revit element with view-specific graphics is exported, in
AutoCAD 2009 those differences (overrides) are ignored. The entity resides on the same layer as other
entities in the same Revit category or AutoCAD 2009 layer, and it loses its unique attributes. This option
forces all entities to follow visual properties as defined by their layer. It produces the least number of
layers and provides by-layer control over the exported DWG file.
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All properties BYLAYER, new layers for overrides
. When a Revit element with view-specific graphics is
exported, in AutoCAD 2009 the entity is placed on its own layer. This option provides by-layer control
over the exported DWG file, and preserves graphical intent. However, it increases the number of layers
in the exported DWG file.
For example, suppose that, in a Revit Architecture project, most walls display with solid black lines, with a
line weight of 5. In a floor plan, however, you have changed the view-specific element graphics for one wall
to use dashed blue lines, with a line weight of 7.
Exporting to CAD Formats | 1279
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Страница 1: ...Revit Architecture 2009 User s Guide April 2008 240A1 050000 PM02A ...
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Страница 116: ...78 Chapter 3 Revit Essentials ...
Страница 172: ...134 Chapter 4 ProjectViews ...
Страница 178: ...Schedule with Grid Lines Schedule with Grid Lines and an Outline 140 Chapter 4 ProjectViews ...
Страница 352: ...Defining the first scale vector Defining the second scale vector 314 Chapter 7 Editing Elements ...
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Страница 739: ...Curtain wall Curtain Grid Curtain Walls Curtain Grids and Mullions 701 ...
Страница 898: ...Pile caps with multiple piles Rectangular and triangular pile caps 860 Chapter 12 Working with Structural Components ...
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Страница 1276: ...1238 Chapter 20 Design Options ...
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