Add Dynamic Elements to Blocks

Add Dynamic Elements to Blocks

Use Parameters in Dynamic Blocks

 

AutoCAD 2008 User's Guide > Create and Modify Objects > Create and Use Blocks (Symbols) > Add Dynamic Behavior to Blocks > Add Dynamic Elements to Blocks > 

Overview of Dynamic Block Elements

Concept

Procedure

Quick Reference

You add dynamic elements to a block definition in the Block Editor. In addition to geometry, a dynamic block generally includes one or more parameters and one or more actions.

• Parameters. Define custom properties for the dynamic block by specifying positions, distances, and angles for geometry in the block.
• Actions. Define how the geometry of a dynamic block reference will move or change when you manipulate the block reference in a drawing. When you add actions to a dynamic block definition, you must associate the actions with parameters. You also specify a selection set of geometry that the action will affect.

When you add a parameter to a dynamic block definition, grips are added to key points of the parameter. Key points are the parts of a parameter that you use to manipulate the block reference. For example, a linear parameter has key points at its base point and end point. You can manipulate the parameter distance from either key point.

The type of parameter that you add to a dynamic block determines the type of grips that are added. Each type of parameter supports only certain types of actions. The following table shows the relationship among parameters, grips, and actions.