2011
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
- Use Coordinates and Coordinate Systems (UCS)
- 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
- Draw Geometric Objects
- Change Existing Objects
- Select Objects
- Correct Mistakes
- Erase Objects
- Cut, Copy, and Paste with the Clipboard
- Modify Objects
- Modify Complex 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 2D Drawings from 3D Models
- Create 3D Models
- Annotate Drawings
- Work with 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
- 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
- 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
UCSORTHO
Determines whether the related orthographic UCS setting is restored
automatically when an orthographic view is restored.
UCSXDIR
Stores the X direction of the current UCS for the current viewport in the
current space.
UCSYDIR
Stores the Y direction of the current UCS for the current viewport in the
current space.
Specify Workplanes in 3D (UCS)
Control of the user coordinate system is essential for effective 3D modeling.
Understand the User Coordinate System in 3D
When you work in 3D, the user coordinate system is useful for entering
coordinates, creating 3D objects on 2D workplanes, and rotating objects in
3D.
When you create or modify objects in a 3D environment, you can move and
reorient the UCS in 3D model space to simplify your work. The XY plane of
the UCS is called the workplane.
Important operations on objects in a 3D environment that depend on the
location and orientation of the UCS include the following:
■ Establish the workplane in on which to create and modify objects
■ Establish the workplane that contains the grid display and grid snap
■ Establish a new UCS Z axis about which to rotate objects in 3D
■ Determine up and down directions as well as horizontal and vertical for
Ortho mode, polar tracking, and object snap tracking
■ Define a 3D view directly into the workplane with the PLAN command
Apply the Right-Hand Rule
Use the right-hand rule to determine the positive axis direction of the Z axis
when you know the direction of the X and Y axes in a 3D coordinate system.
214 | Chapter 16 Use Precision Tools