2011
Table Of Contents
- Contents
- Get Information
- The User Interface
- Tools in the Application Window
- Other Tool Locations
- Customize the Drawing Environment
- Start and Save Drawings
- Control the Drawing Views
- Change Views
- Use Viewing Tools
- Display Multiple Views in Model Space
- Organize Drawings and Layouts
- Create Single-View Drawings (Model Space)
- Create Multiple-View Drawing Layouts (Paper Space)
- Work with Sheets in a Sheet Set
- Create and Modify Objects
- Control the Properties of Objects
- Work with Object Properties
- Work with Layers
- Work with Colors
- Work with Linetypes
- Control Lineweights
- Control the Display Properties of Certain 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
- Add Constraints to Geometry
- Control the Properties of Objects
- Define and Reference Blocks
- Work with Blocks
- Create and Modify Blocks
- Add Behaviors to Blocks (Dynamic Blocks)
- Overview of Dynamic Blocks
- Quick Start to Creating Dynamic Blocks
- Create and Edit Dynamic Blocks
- Add Constraints to Dynamic Blocks
- Add Action Parameters to Dynamic 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
- Prepare Drawings for Plotting and Publishing
- Quick Start to Saving Settings for Plotting and Publishing
- Specify Page Setup Settings
- Overview of Page Setup Settings
- Select a Printer or Plotter for a Layout
- Select a Paper Size for 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
- Determine the Drawing Orientation of a Layout
- Use the Layout Wizard to Specify Layout Settings
- Import PCP or PC2 Settings into a Layout
- Create and Use Named Page Setups
- Use Named Page Setups with Sheet Sets
- Plot Drawings
- Quick Start to Plotting
- 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
- Prepare Drawings for Plotting and Publishing
- Share Data Between Files
- Reference Other Drawing Files
- Link and Embed Data (OLE)
- Work with Data in Other Formats
- Import Other File Formats
- Attach Files as Underlays
- Attach Raster Image Files
- Export Drawings to Other File Formats
- Use Drawings from Different Versions and Applications
- Extract Data from Drawings and Spreadsheets
- Access External Databases
- Overview of Using 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
- Manage Files with Autodesk Vault
- Collaborate with Others
- Protect and Sign Drawings
- Use the Internet for Collaboration
- Use Markups for Design Review
- Render Drawings
- Draw 2D Isometric Views
- Add Lighting to Your Model
- Materials and Textures
- Render 3D Objects for Realism
- Glossary
- Index
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.
Place the back of your right hand near the screen and point your thumb in
the direction of the positive X axis. Extend your index and middle fingers as
illustrated, pointing your index finger in the direction of the positive Y axis.
Your middle finger indicates the direction of the positive Z axis. By rotating
your hand, you see how the X, Y, and Z axes rotate as you change the UCS.
You can also use the right-hand rule for determining the default positive
direction of rotation about an axis in 3D space. Point your right thumb in the
positive direction of the axis and curl your fingers. Your fingers indicate the
positive rotation direction about the axis.
566 | Chapter 17 Use Precision Tools