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This history of AutoCAD begins with drawings of lines and arcs and continues with features like 3D modeling and 2D printing. You’ll read about AutoCAD’s trademark “user interface” (UI) and its creators. The history concludes with AutoCAD’s current offerings and updates to the app. In between, you’ll learn the ins and outs of this program, its conventions, and the way AutoCAD is used to create everything from architectural plans to music notation.
If you’re a designer or architect, AutoCAD is essential to your workflow. By the end of this article, you’ll know how to draw and model, so you can complete your projects. Read on to learn how AutoCAD works and how you can get started.
What Is AutoCAD?
AutoCAD is a software application designed to make it easy to design and produce two-dimensional drawings. It has been part of Autodesk’s suite of products since 1982. Today, Autodesk offers more than 500 individual software products, all of which help architects and engineers create 3D models.
As you use AutoCAD, you’ll see that it has a UI and a workflow similar to other Autodesk software products. You will see more UI features in the next section, “How AutoCAD Works.”
To keep up-to-date with AutoCAD, read this blog. If you can’t wait to start creating, check out the product videos and check out a demo.
What Does AutoCAD Do?
AutoCAD is a computer-aided design and drafting tool. It allows you to design and produce 2D drawings. It also provides methods for 2D to 3D conversion. If you’re creating your own 3D models, you might use other software products.
The most common task you can perform with AutoCAD is to draw 3D shapes or 2D vector graphics. The tools in AutoCAD are designed to be used together to build drawings. For example, you might create a building plan or floor plan, then use that plan to create a 3D model.
This design process uses the AutoCAD Modeling Environment (ACE). This environment is where the 2D and 3D drawing tools live. It works similar to the User Interface (UI) in other Autodes
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Programming
AutoCAD has always been a popular programming language. The earliest users were students who programmed their own AutoLISP programs, and for a long time the most common way of programming AutoCAD was with AutoLISP. However, development of AutoLISP continued for many years after the introduction of AutoCAD as a standard development platform and by the mid-1990s the language was rapidly losing ground to Visual LISP and Visual Basic as a development platform. Even today, many AutoCAD users are familiar with the language, and have developed their own extensions (hooks) or applications using it. AutoCAD has been, and continues to be, one of the most popular programming languages, especially among AutoCAD trainees.
AutoCAD/Dwg was the first 3D CAD program to use extensions to AutoLISP (a method called Plugins or Add-Ins) to provide a general development framework to create extensions and application programs. AutoCAD/Dwg has the concept of Extension Points that can be loaded using the "Extensions" dialog box. These are application-specific "hooks" that invoke an AutoCAD function or procedure at a specific point in the drawing cycle, making development of such applications much easier than programming AutoLISP.
Beginning with AutoCAD 2002, Autodesk introduced Visual LISP, a newer programming language based on a subset of Visual Basic. AutoCAD/Dwg 2001 was the first to use Visual LISP as the base language. The language is generally similar to Visual Basic, and there are similarities to Visual LISP and AutoLISP. AutoCAD/Dwg 2005, the first edition to use Visual LISP, is the most similar to Visual LISP. The same development platform is used to create both Visual LISP and AutoLISP extensions.
The creation of Visual LISP was intended to help draw AutoLISP users into the world of mainstream programming. The language was designed as a
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