2004
Table Of Contents
- Contents
- Chapter 1 - Find the Information You Need
- Part 1 - The User Interface
- Part 2 - Start, Organize, and Save a Drawing
- Part 3 - Control the Drawing Views
- Part 4 - Create and Modify Objects
- Chapter 14 - Control the Properties of Objects
- Chapter 15 - Use Precision Tools
- Chapter 16 - Draw Geometric Objects
- Chapter 17 - Change Existing Objects
- Part 5 - Hatches, Notes, and Dimensions
- Chapter 18 - Hatches, Fills, and Wipeouts
- Chapter 19 - Notes and Labels
- Chapter 20 - Dimensions and Tolerances
- Part 6 - Create Layouts and Plot Drawings
- Chapter 21 - Create Layouts
- Chapter 22 - Plot Drawings
- Part 7 - Share Data Between Drawings and Applications
- Chapter 23 - Reference Other Drawing Files (Xrefs)
- Chapter 24 - Link and Embed Data (OLE)
- Chapter 25 - Work with Data in Other Formats
- Chapter 26 - Access External Databases
- Overview of Using AutoCAD with 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
- Part 8 - Work with Other People and Organizations
- Chapter 27 - Protect and Sign Drawings
- Chapter 28 - Use the Internet to Share Drawings
- Chapter 29 - Insert and View Markups
- Chapter 30 - Publish Drawing Sets
- Part 9 - Create Realistic Images and Graphics
- Glossary
- Index
292 | Chapter 16 Draw Geometric Objects
To create a ray
1 From the Draw menu, choose Ray.
2 Specify a starting point for the ray.
3 Specify a point through which the ray should pass.
4 Continue to specify points to create additional rays as needed.
All subsequent rays pass through the first point specified.
5 Press
ENTER to end the command.
Command line
RAY
Create and Combine Areas (Regions)
Regions are two-dimensional enclosed areas you create from objects that
form closed loops. Loops can be combinations of lines, polylines, circles,
arcs, ellipses, elliptical arcs, and splines. The objects that make up the loops
must either be closed or form closed areas by sharing endpoints with other
objects.
Regions can be used for
■ Applying hatching and shading
■ Analyzing properties, such as area, using MASSPROP
■ Extracting design information, such as the centroid
You can create regions out of multiple loops and out of open curves whose
endpoints are connected and form loops. You cannot form regions from
open objects that intersect to form a closed area: for example, intersecting
arcs or self-intersecting curves.
You can also create regions using
BOUNDARY.
shapes that can form regions