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
NOTE Object snaps work only when you are prompted for a point. If you try to
use an object snap at the Command prompt, an error message is displayed.
Use Running Object Snaps
If you need to use one or more object snaps repeatedly, you can turn on running
object snaps. For example, you might set Center as a running object snap if
you need to connect the centers of a series of circles with a line.
You can specify one or more running object snaps on the Object Snaps tab in
the Drafting Settings dialog box, which is accessible from the Tools menu. If
several running object snaps are on, more than one object snap may be eligible
at a given location. Press Tab to cycle through the possibilities before you
specify the point.
Click the OSNAP button on the status bar or press F3 to turn running object
snaps on and off.
NOTE If you want object snaps to ignore hatch objects, set the OSOPTIONS
system variable to 1.
Use Object Snaps in 3D
By default, the Z-value of an object snap location is determined by the object's
location in space. However, if you work with object snaps on the plan view
of a building or the top view of a part, a constant Z-value is more useful.
If you turn on the OSNAPZ system variable, all object snaps are projected onto
the XY plane of the current UCS or, if ELEV is set to a non-zero value, onto a
plane parallel to XY plane at the specified elevation.
NOTE When you draw or modify objects, make sure that you know whether
OSNAPZ is on or off. There is no visual reminder, and you can get unexpected
results.
To snap to a geometric point on an object
1 At the prompt for a point, hold down Shift and right-click in the drawing
area. Select the object snap you want to use.
2 Move your cursor over the desired object snap location.
If AutoSnap is on, your cursor automatically locks onto the snap location
you selected, and a marker and tooltip indicate the object snap point.
3 Select an object.
586 | Chapter 17 Use Precision Tools