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
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.
Quick Reference
APERTURE
Sets the display size for the object snap target box, in pixels.
OPTIONS
Customizes the program settings.
OSNAP
Sets running object snap modes.
APBOX
Turns the display of the AutoSnap aperture box on or off.
AUTOSNAP
Controls the display of the AutoSnap marker, tooltip, and magnet.
OSMODE
Sets running object snaps
OSNAPZ
Controls whether object snaps are automatically projected onto a plane
parallel to the XY plane of the current UCS at the current elevation.
OSNAPCOORD
Controls whether coordinates entered on the command line will override
running object snaps.
228 | Chapter 16 Use Precision Tools