2012
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
- Work with the User Coordinate System (UCS)
- Enter Coordinates to Specify Points
- 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
- Create Objects
- Select and Modify Objects
- Select Objects
- Correct Mistakes
- Erase Objects
- Cut, Copy, and Paste with the Clipboard
- Modify 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 Drawings from 3D Models
- Create 3D Models
- Annotate Drawings
- Work with Annotations
- Overview of Annotations
- Scale Annotations
- Overview of Scaling Annotations
- Set Annotation Scale
- Create Annotative Objects
- Display Annotative Objects
- Add and Modify Scale Representations
- Set Orientation for 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
- Work with Annotations
- 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
- Publish Drawings
- 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
Methods for Creating Wireframe Models
You can create wireframe models by positioning any 2D planar object anywhere
in 3D space, using the following methods:
Use the XEDGES command to create wireframe geometry from regions,
3D solids, surfaces, and meshes. XEDGES extracts all the edges on the
selected objects or subobjects. The extracted edges form a duplicate
wireframe composed of 2D objects such as lines, circles, and 3D polylines.
Enter 3D coordinates that define the X, Y, and Z location of the object.
Set the default work plane (the XY plane of the UCS) on which to draw
the object.
Move or copy the object to its proper 3D location after you create it.
Wireframe modeling is a skill that requires practice and experience. The best
way to learn how to create wireframe models is to begin with simple models
before attempting models that are more complex.
Tips for Working with Wireframe Models
Creating 3D wireframe models can be more difficult and time-consuming
than creating their 2D views. Here are some tips that will help you work more
effectively:
Plan and organize your model so that you can turn off layers to reduce the
visual complexity of the model. Color can help you differentiate between
objects in various views.
Create construction geometry to define the basic envelope of the model.
Use multiple views, especially isometric views, to make visualizing the
model and selecting objects easier.
Become adept at manipulating the UCS in 3D. The XY plane of the current
UCS operates as a work plane to orient planar objects such as circles and
arcs. The UCS also determines the plane of operation for trimming and
extending, offsetting, and rotating objects.
Use object snaps and grid snap carefully to ensure the precision of your
model.
Use coordinate filters to drop perpendiculars and easily locate points in
3D based on the location of points on other objects.
438 | Chapter 8 Work with 3D Models