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
Dimensional constraints control distances or angles between 2D geometric
objects in a drawing.
The main dimensional constraints are: dynamic, annotational, and
reference constraints.
Dynamic constraints (default) - Used to constrain objects and are
displayed on demand.
Annotational constraints - Used to create associative variables, offset
distances, and so on.
Reference constraints (read-only) - Read-only dimensional constraints
(either dynamic or annotational).
When you place your cursor over a constrained object, you will see a glyph
denoting the object is constrained.
With AutoCAD LT, you can do the following:
View drawings containing constraints created using AutoCAD.
View and edit the geometric and dimensional constraints.
NOTE You cannot create constraints within AutoCAD LT.
Work with Custom and Proxy Objects
Custom objects provide additional capabilities to the program and related
products. When the application that created the custom object is not available,
a proxy object is substituted in its place.
A custom object is a type of object created by an ObjectARX
®
(AutoCAD
Run-Time Extension) application, which typically has more specialized
capabilities than standard AutoCAD for Mac objects. Custom objects include
parametric solids (AutoCAD
®
Mechanical), intelligently interactive door
symbols (AutoCAD
®
Architecture), polygon objects (AutoCAD
®
Map 3D), and
associative dimension objects (AutoCAD and AutoCAD LT).
In addition to Autodesk, many software vendors use ObjectARX to write
programs that create graphical and nongraphical custom objects that are useful
in their AutoCAD based applications.
Work with Data in Other Formats | 765