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
Faces are non-overlapping units that—along with their edges and
vertices—form the basic editable units of a mesh object. When you move,
rotate, and scale individual mesh faces, surrounding faces are stretched and
deformed in order to avoid introducing gaps. When gaps occur, you can often
close them by smoothing the object or refining individual faces.
About Mesh Facets
Mesh faces have underlying structures, known as facets. The density of the
facet grid corresponds to the smoothness of the mesh. As the smoothness
level is increased, the density of the underlying facet grid also increases. When
you want to confine detailed mesh editing to a smaller area, you can convert
facets to editable faces by using refinement.
Unlike faces, facets cannot be individually modified. However, you can make
them more visible by modifying the VSLIGHTINGQUALITY system variable.
About Mesh Modeling
You can work with mesh objects in the following ways:
■ Add smoothness. Increase or decrease smoothness levels to round the
overall shape of the model. The underlying density of the mesh facet grid
increases as the mesh object smoothness level increases
(MESHSMOOTHMORE, MESHSMOOTHLESS).
■ Refine the object to reset the baseline smoothness level. Refine a mesh
object to convert the underlying facet grid to editable faces. Refinement
612 | Chapter 23 Modify 3D Models