2004
Table Of Contents
- Contents
- Chapter 1 - Find the Information You Need
- Part 1 - The User Interface
- Part 2 - Start, Organize, and Save a Drawing
- Part 3 - Control the Drawing Views
- Part 4 - Create and Modify Objects
- Chapter 14 - Control the Properties of Objects
- Chapter 15 - Use Precision Tools
- Chapter 16 - Draw Geometric Objects
- Chapter 17 - Change Existing Objects
- Part 5 - Hatches, Notes, and Dimensions
- Chapter 18 - Hatches, Fills, and Wipeouts
- Chapter 19 - Notes and Labels
- Chapter 20 - Dimensions and Tolerances
- Part 6 - Create Layouts and Plot Drawings
- Chapter 21 - Create Layouts
- Chapter 22 - Plot Drawings
- Part 7 - Share Data Between Drawings and Applications
- Chapter 23 - Reference Other Drawing Files (Xrefs)
- Chapter 24 - Link and Embed Data (OLE)
- Chapter 25 - Work with Data in Other Formats
- Chapter 26 - Access External Databases
- Overview of Using AutoCAD with External Databases
- Access a Database from Within AutoCAD
- Link Database Records to Graphical Objects
- Use Labels to Display Database Information in the Drawing
- Use Queries to Filter Database Information
- Share Link and Label Templates and Queries with Other Users
- Work with Links in Files from Earlier Releases
- Part 8 - Work with Other People and Organizations
- Chapter 27 - Protect and Sign Drawings
- Chapter 28 - Use the Internet to Share Drawings
- Chapter 29 - Insert and View Markups
- Chapter 30 - Publish Drawing Sets
- Part 9 - Create Realistic Images and Graphics
- Glossary
- Index
Use Drawings from Different Versions and Applications | 723
Because saving a drawing in an earlier release format may cause some data
loss, be sure to assign a different name to avoid overwriting the current
drawing. If you overwrite the AutoCAD LT 2004 version of the drawing, you
can restore the overwritten version from the backup file (filename.bak) that is
created during the saving process.
Maintain Associativity in Dimensions
Associative dimensions created in AutoCAD LT 2002 or later generally main-
tain their associativity when saved to a previous release and then reopened
in the current release. However, if you modify dimensioned objects using a
previous release to the extent that new objects are formed, the dimension
associations change when the drawing is loaded into the current release. For
example, if a line that was dimensioned is trimmed so that an interior
portion of the line is removed, two line objects result and the associated
dimension applies to only one of the line objects.
Dimension associativity is not maintained when a drawing is saved as an
AutoCAD R12/LT 2 DXF file and then reopened in the current release.
Note Drawings saved in a format previous to AutoCAD 2002 retain the setting
of the
DIMASSOC system variable. When the drawing is reopened in AutoCAD
2002 or later, the dimension associativity setting is restored. If a legacy drawing
is opened in AutoCAD 2002, the
DIMASSOC system variable takes on the value of
the legacy drawing’s DIMASO system variable.
To save an AutoCAD drawing to a previous release format
1 From the File menu, choose Save As.
2 In the Save Drawing As dialog box, in the File Name box, enter a new
drawing name.
3 Under Files of Type, select the AutoCAD or AutoCAD file format you want.
4 Choose OK.
Command line
SAVEAS
Work with AutoCAD Drawings in AutoCAD LT
AutoCAD LT offers full compatibility when working with AutoCAD draw-
ings. However, you should understand how AutoCAD LT handles new or
enhanced features available in AutoCAD 2000i and later, including
■ Nonrectangular layout viewports
■ Multiple user coordinate systems in a single drawing file
■ 2D and 3D solid object shading