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Work with AutoCAD Drawings in AutoCAD LT
AutoCAD LT offers full compatibility when working with AutoCAD drawings.
However, you should understand how AutoCAD LT handles AutoCAD-only
features.
Work with Fields
In AutoCAD, you can insert LispVariables fields, which are not available in
AutoCAD LT. However, the drawings created in AutoCAD that contain
LispVariables can be opened without errors in AutoCAD LT, and the cached
value is displayed.
Work with Multiple User Coordinate Systems
In AutoCAD, you can choose to use a different user coordinate system (UCS)
in each viewport in a single drawing file. In AutoCAD LT, you can use only
one UCS in each drawing file. The AutoCAD LT behavior is the same as it was
in previous releases.
When you open an AutoCAD drawing file in AutoCAD LT, AutoCAD LT uses
only the UCS from the current viewport. If you edit the drawing in AutoCAD
LT, and then save it and reopen it in AutoCAD, you may notice some
discrepancies in UCS usage. User coordinate systems that were set individually
in AutoCAD will probably change if the viewports that use them were activated
in the AutoCAD LT session.
Work with AutoCAD LT 2D and 3D Solid Object Shading
In AutoCAD, visual styles provide shading and wireframe options for objects
in the current viewport. AutoCAD LT does not support visual styles. The
SHADEMODE command in AutoCAD LT provides only the 2D Wireframe and
Hidden options. You can use SHADEMODE in AutoCAD LT to turn off visual
styles in viewports that were created in AutoCAD. This exposes the underlying
geometry so you can easily edit drawings and use the geometry with precision
drawing tools such as object snaps.
IMPORTANT Once you use the SHADEMODE command in AutoCAD LT to turn
solid object shading off for an object created in AutoCAD, you cannot turn it back
on except by using the UNDO command. If you make changes to the object, you
can turn the shading on again only in AutoCAD.
510 | Chapter 11 Share Data Between Files
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