Use the Lines tab of the Modify DWG/DXF Export Setup dialog to specify the linetype scale that will control how Revit LT linetype definitions are exported.
You can also map Revit LT line patterns to specific DWG/DXF linetypes as needed.
- Click File tab
ExportOptions
(Export Setups DWG/DXF). Select the setup to modify. Click the Lines tab.
In CAD applications, linetypes determine the particular dash-dot sequence, the relative lengths of dashes and blank spaces, and the characteristics of any included text or shapes in lines.
In Revit LT, these properties are defined as line patterns, which are specified in the object styles assigned to element categories. These patterns can be overridden for a selected element in a specific view.
Set linetype scale
In AutoCAD, the PSLTSCALE parameter controls paper space linetype scaling. A value of 0 indicates no special linetype scaling.
Linetype dash lengths are based on the drawing units of the space (model or paper) in which the objects were created. A value of 1 indicates that viewport scaling governs linetype scaling.
In Revit LT, the Set Linetype Scale option changes the default behavior of the exported DWG files. Some lines that you would expect to be dashed may now appear solid or in a different scale in either Model or Sheet View in AutoCAD. Regardless of the option you choose, the DWG linetype definitions are created so that a dashed line always begins and ends with a dash.
Select one of the following options to control the LTSCALE and PSLTSCALE settings in AutoCAD and to control how linetype definitions are exported from Revit LT:
- Scaled Linetype definitions. This option preserves graphical intent by exporting linetypes the same as they were previously scaled by view scale.
- Modelspace (PSLTSCALE = 0). This option sets the LTSCALE parameter to view scale and the PSLTSCALE to 0.
- Paperspace (PSLTSCALE = 1). This option sets the value of both LTSCALE and PSLTSCALE to 1. Revit LT linetype definitions are scaled to reflect project units, but otherwise they are exported as is.
Map Revit LT line patterns to linetypes in DWG
By default, each Revit LT line pattern listed in the mapping table has a corresponding DWG linetype generated automatically upon export. This linetype matches the Revit LT line pattern.
To map a Revit LT line pattern to a different DWG line type, do the following:
- For Load DWG linetypes from, navigate to and select the LIN file that contains the desired linetype.
- In the Linetypes in DWG column of the table, click the value for the linetype, and then select the desired linetype from the drop-down list.
To change all the values in the table back to {Automatically generate linetype}, click Reset All.