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AutoCAD is the most widely used CAD software worldwide, particularly in the industrial and architectural sectors. According to analyst firm Gartner, in 2017 the most commonly used AutoCAD version was 2017 (released in 2015), followed by AutoCAD 2016 and AutoCAD LT 2016.
The history of AutoCAD began in 1974 when Gary R. Maxfield, a systems engineer, and Len Goodale, a programmer, designed a system to automate the creation of architectural designs in the AutoLISP programming language on a PDP-11 minicomputer. The new system was called the “AutoCAD” program. The first official release, AutoCAD 1.0, was released in December, 1982. The first users were Len Goodale and Gary Maxfield.
AutoCAD 1.0 included the basic graphical capabilities for drafting. In 1987, Automatic Programming Language (APL) was added as the second programming language available in AutoCAD. APL was implemented by Maxfield using pointers and dynamic memory allocation. The original APL was a 1.0 release and AutoCAD 2.1. APL can be used with any number of dimensions and it is well suited for data manipulation.
During the 1990s, the graphical capabilities of AutoCAD were expanded, and in 1997, the first release of AutoCAD Architecture (AutoCAD A), with a distinctive yellow and green colour scheme, was released. This release focused on the creation of the architectural design of buildings. The new architecture version included a new drafting system that allowed for the plotting of different construction types, creating the ability to create a full set of blueprints for a given structure.
In June 2004, AutoCAD was integrated with Civil 3D to create AutoCAD/Civil 3D. In 2013, AutoCAD announced the release of Autodesk’s first wholly owned, cloud-based app, AutoCAD 360, which works on a variety of platforms and provides access to several of the architectural and construction applications created by Autodesk.
On February 24, 2008, AutoCAD LT 2008 was released and included a major change in the interface. The new interface is a hybrid of the old and new ones and is designed to promote faster and more intuitive interaction with the application. Other improvements in this release included the ability to display and edit drawings on the iPad, tablet computers
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AutoCAD generates code that can be added to a project to add functionality, avoid having to write code from scratch and be able to see the effects of code changes.
AutoCAD contains an entire application programming interface (API) that is accessible through its object repository, which contains many classes of objects. These classes can be retrieved from the repository or written by developers. This allows AutoCAD to be extended, enhanced or customized. This is the foundation of the AutoCAD plugin architecture. AutoCAD code is divided into two main types: application code and user interface (UI) code.
Application code can be modified and changed without having to release a product upgrade, and user interface code can be created or modified without having to recompile AutoCAD.
AutoCAD contains over 20,000 classes of objects, including command classes (i.e., commands, menus, toolbars, dialogs), link classes (i.e., commands, menus, toolbars, dialogs), scripts (i.e., macro procedures) and objects.
AutoCAD supports the Java programming language, which is used to write code that can be called from AutoCAD. AutoCAD also supports the.NET programming language, which is a variant of the Microsoft Visual Basic programming language and is the primary programming language for Windows XP and Windows Vista. The.NET programming language is used to write code that can be called from AutoCAD.
In addition to the programming languages supported by AutoCAD, the AutoCAD API is also supported by three languages: Visual LISP, Visual C++ and Visual ObjectARX. These languages can be used to create AutoCAD extensions (add-on applications) that add additional functionality to AutoCAD.
The class library used by AutoCAD is the Autodesk Exchange Apps, which includes AutoCAD for AI, AutoCAD Architecture, AutoCAD Electrical, AutoCAD Civil 3D, AutoCAD Fundamentals, AutoCAD MEP and AutoCAD Parametric.
AutoCAD features include:
Drafting and 2D design
Drainage and sewer design
Plant and equipment design
Water and wastewater design
Image capture, image processing, and printing
Vector and raster graphics,
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AutoCAD claims to be able to read in SVG, although it is not well documented and not supported in all versions.
To specify a constant, the user must choose from the (always) current document, the document before the current one or the document last opened, and the assignment operation, usually by entering an operator in the prompt bar. This prompt bar is the bar on which the commands, number of objects to be drawn or added, etc. are located.
The prompt bar also shows the current X and Y coordinates of the mouse pointer in the current drawing.
Internally, AutoCAD stores the name of all the drawing objects in its database (plus their position on a drawing layer) and maintains a list of all the actions that may have been performed. These actions are referred to as „episodes“ or „operation records“ in AutoCAD’s parlance.
AutoCAD is designed to emulate the user interface of traditional mechanical drafting tools, with commands organized in layers. Commands are grouped by function and then by layer. In addition to standard command options and prompting, AutoCAD uses a context-sensitive help system. For example, if the cursor is positioned on a line command and the „Drawing Layers“ context menu is chosen, the help is displayed in the context of that command.
When a user uses a command, AutoCAD searches through its internal database for the command. If a command is not found, AutoCAD generates a dialog box with a description of the new command, with an input and output list of its parameters, and the location and properties of the window in which it was triggered.
In addition, AutoCAD includes a number of features aimed at novice users: a tutorial, Help facilities, and Undo/Redo.
AutoCAD has a structured XML file format for version control. Currently the files are being converted to use a markup language and distributed in an MS Office format.
The viewer has a cut and paste facility, so a drawing can be emailed to another user and they can view it and make modifications to it.
AutoCAD 2008 is part of the releases series.
Release dates shown for version numbers are the release dates of the first public build of AutoCAD.
Source code for AutoCAD is released under the GNU General Public License (GPL).
What’s New In AutoCAD?
Markup Support and Feedback:
Gain a consistent and complete understanding of your markups. Keep track of changes, performance notes, revisions, and other feedback in an organized way.
BETTER versioning with faster update and rollback. The new time-based versioning makes it easier to see the history of a file. The new folder-based versioning makes it easier to organize your versioned documents.
The latest AutoCAD extension and spreadsheet add-ins are more stable and feature-rich.
A multi-user feature you can invite your friends to use.
Of course, there are many more features that have been added to AutoCAD for AutoCAD 2023. All of them are important and you can find them in the release notes. Here we’ve summarized the most important new features in AutoCAD 2023.
What’s new in AutoCAD
Workaround integration in Revit
AutoCAD and Revit work together more tightly than ever, with integration of AutoCAD tools into the Revit application. You can use AutoCAD tools in Revit, such as the On-Screen Editor and Block Editor, and then return to the drawing and continue working. This new feature combines the best of both worlds – the AutoCAD Revit environment.
Support for Simplify and Combine
A feature that has been requested for many years, you can now simplify and combine multiple shapes and objects using the Simplify and Combine command, available in the Draw menu of the ribbon.
Markup Import and Markup Assist
Rapidly send and incorporate feedback into your designs. Import feedback from printed paper or PDFs and add changes to your drawings automatically, without additional drawing steps. (video: 1:15 min.)
Automatically Recognize Grouped Objects
Grabs connected objects and removes them from the current drawing. This powerful feature is part of the drawing tool, and it’s easier than ever to use.
Auto Selection of Entities in the Entity Selection Bar
Now you can easily select objects and fit them in the Entity Selection Bar. The Entity Selection Bar has a special setting that gives you access to common commands, such as Entity / Select / Entity, the Entity Grid, and other
System Requirements For AutoCAD:
* Windows 10, Windows 8.1, Windows 8, Windows 7
* Intel Core i3, i5, i7
* 4GB or more of RAM
* DirectX 11-compatible video card
* USB 2.0 port
* USB (with a power adapter) port (minimum: USB 2.0)
* DirectX 9-compatible video card
* DirectX 9-compatible video card (minimum: USB 2.0)
* Windows Vista (SP2 or higher)