AutoCAD : Professional Tips and Techniques

Chapter 5: Dynamic Blocks

Overview

Dynamic blocks are one of the most exciting things to happen to AutoCAD in a long time. If you haven't authored any dynamic blocks yet, let this chapter give you a kick start. Once you get going with dynamic blocks, you'll never look back they're so useful you'll probably want to rethink your entire block library. If you have tons of similar blocks in your library, you'll be able to consolidate them into just a few powerful dynamic blocks that do it all. This makes finding things in a dynamic block library easy.

More than just static collections of objects, dynamic blocks can do all kinds of things because they have intelligence built in. Dynamic blocks can move, scale, rotate, stretch, rotate, and stretch at the same time, array, and yes, even flip, all with custom grips. In short, dynamic blocks can be programmed to do exactly what you need them to. Authoring dynamic blocks is like programming by drawing, but without any coding that's a beautiful thing.

Block Basics

Just like with a building, you must start with a strong foundation before getting carried away with the architecture. Dynamic blocks are based on regular, static, boring blocks. This section offers you some tips and tricks that should make working with static blocks more interesting and more rewarding.

Absolutely No Explosions Allowed

One of the age-old problems with blocks is you can go to all the trouble of designing, defining, and inserting blocks only to have some bozo (or respected colleague)...

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