2012
Table Of Contents
- Contents
- Get Information
- The User Interface
- Start and Save Drawings
- Control the Drawing Views
- Organize Drawings and Layouts
- Create and Modify Objects
- Control the Properties of Objects
- Use Precision Tools
- Work with the User Coordinate System (UCS)
- Enter Coordinates to Specify Points
- Use Dynamic Input
- Snap to Locations on Objects (Object Snaps)
- Restrict Cursor Movement
- Combine or Offset Points and Coordinates
- Specify Distances
- Extract Geometric Information from Objects
- Use a Calculator
- Create Objects
- Select and Modify Objects
- Select Objects
- Correct Mistakes
- Erase Objects
- Cut, Copy, and Paste with the Clipboard
- Modify Objects
- Add Constraints to Geometry
- Define and Reference Blocks
- Work with 3D Models
- Create 3D Models
- Overview of 3D Modeling
- Create Solids and Surfaces from Lines and Curves
- Create Solids
- Create Surfaces
- Create Meshes
- Create Wireframe Models
- Add 3D Thickness to Objects
- Modify 3D Models
- Create Sections and Drawings from 3D Models
- Create 3D Models
- Annotate Drawings
- Work with Annotations
- Overview of Annotations
- Scale Annotations
- Overview of Scaling Annotations
- Set Annotation Scale
- Create Annotative Objects
- Display Annotative Objects
- Add and Modify Scale Representations
- Set Orientation for Annotations
- Hatches, Fills, and Wipeouts
- Notes and Labels
- Tables
- Dimensions and Tolerances
- Understand Basic Concepts of Dimensioning
- Use Dimension Styles
- Set the Scale for Dimensions
- Create Dimensions
- Modify Existing Dimensions
- Add Geometric Tolerances
- Work with Annotations
- Plot and Publish Drawings
- Specify Settings for Plotting
- Save Plot Settings as Named Page Setups
- Reuse Named Page Setups
- Specify Page Setup Settings
- Select a Printer or Plotter for a Layout
- Select a Paper Size for a Layout
- Determine the Drawing Orientation of a Layout
- Set the Plot Area of a Layout
- Adjust the Plot Offset of a Layout
- Set the Plot Scale for a Layout
- Set the Lineweight Scale for a Layout
- Select a Plot Style Table for a Layout
- Set Shaded Viewport and Plot Options for a Layout
- Print or Plot Drawings
- Overview of Plotting
- Use a Page Setup to Specify Plot Settings
- Select a Printer or Plotter
- Specify the Area to Plot
- Set Paper Size
- Position the Drawing on the Paper
- Control How Objects Are Plotted
- Preview a Plot
- Plot Files to Other Formats
- Publish Drawings
- Specify Settings for Plotting
- Share Data Between Files
- Reference Other Drawing Files
- Work with Data in Other Formats
- Collaborate with Others
- Render Drawings
- Draw 2D Isometric Views
- Add Lighting to Your Model
- Materials and Textures
- Render 3D Objects for Realism
- Glossary
- Index
information specific to the current release stripped out or converted to another
object type.
If you use the current release to open a drawing created with a previous release,
and you do not add any information specific to the current release, you can
then save the drawing in the format of the previous release without loss of
data.
NOTE To use files with AutoCAD Release 12 or AutoCAD LT Release 2, save the
drawing using the AutoCAD R12/LT2 DXF option.
If you need to keep a drawing created in a previous release in its original
format, either mark the file as read-only, or open it in the current release and
use the File Type options in the Save As dialog box to save it in its original
format.
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 current 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 2002 or later generally maintain
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.
Save Drawings with Large Objects
Drawings saved to a legacy drawing file format (AutoCAD 2007 or earlier) do
not support objects greater than 256MB. For more information about saving
drawings that contain large objects to a previous release, see
Maintain Com-
patibility with Large Object Limits
(page 55).
Work with Data in Other Formats | 761