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
Splines are also used for creating solids and surfaces for 3D modeling. For more
information, see
Create Solids and Surfaces from Lines and Curves on page
446.
Understand Control Vertices and Fit Points
You can create or edit splines using either control vertices (CVs), or fit points.
The spline on the left displays control vertices along a control polygon, and the
spline on the right displays fit points.
The options available in the SPLINE command depend on which method is
used to create the spline.
The CVSHOW and CVHIDE commands determine whether the control vertices
are displayed on a spline even when the spline is not selected.
Use the triangular grip on a selected spline to switch between displaying
control vertices and displaying fit points. You can use the round and square
grips to modify a selected spline. For more information, see Modify Splines
on page 359.
IMPORTANT Switching from displaying control vertices to fit points automatically
changes the selected spline to degree 3. Splines originally created using
higher-degree equations will likely change shape as a result.
Create Splines Using Control Vertices
When you create splines using control vertices, the points you specify display
temporary lines between them, forming a control polygon that determines
the shape of the spline.
282 | Chapter 17 Draw Geometric Objects