Thursday, February 12, 2009

download autocad

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AutoCAD
AutoCAD 2009.

AutoCAD is a CAD (Computer Aided Design) software application for 2D and 3D design and drafting, developed and sold by Autodesk, Inc. Initially released in late 1982, AutoCAD was one of the first CAD programs to run on personal computers, and notably the IBM PC. Most CAD software at the time ran on graphics terminals connected to mainframe computers or mini-computers.

In earlier releases, AutoCAD used primitive entities — such as lines, polylines, circles, arcs, and text — as the foundation for more complex objects. Since the mid-1990s, AutoCAD has supported custom objects through its C++ API. Modern AutoCAD includes a full set of basic solid modeling and 3D tools, but lacks some of the more advanced capabilities of solid modeling applications[citation needed]. With the release of AutoCAD 2007 came improved 3D modeling functionality, which meant better navigation when working in 3D. Moreover, it became easier to edit 3D models. The mental ray engine was included in rendering, it was now possible to do quality renderings.

AutoCAD supports a number of application programming interfaces (APIs) for customization and automation. These include AutoLISP, Visual LISP, VBA, .NET and ObjectARX. ObjectARX is a C++ class library, which was also the base for products extending AutoCAD functionality to specific fields, to create products such as AutoCAD Architecture, AutoCAD Electrical, AutoCAD Civil 3D, or third-party AutoCAD-based applications.

AutoCAD's native file format, DWG, and to a lesser extent, its interchange file format, DXF, have become de facto standards for CAD data interoperability. AutoCAD in recent years has included support for DWF, a format developed and promoted by Autodesk for publishing CAD data. In 2006, Autodesk estimated the number of active DWG files to be in excess of one billion. In the past, Autodesk has estimated the total number of DWG files in existence to be more than three billion.

AutoCAD currently runs exclusively on Microsoft desktop operating systems. Versions for Unix and Macintosh were released in the 1980s and 1990s, but these were later dropped. AutoCAD can run on an emulator or compatibility layer like VMware Workstation or Wine, albeit subject to various performance issues that can often arise when working with 3D objects or large drawings.

AutoCAD and AutoCAD LT are available for German, French, Italian, Spanish, Japanese, Korean, Chinese Simplified (No LT), Chinese Traditional, Russian, Czech, Polish, Hungarian (No LT), Brazilian Portuguese (No LT), Danish, Dutch, Swedish, Finnish, Norwegian and Vietnamese. The extent of localization varies from full translation of the product to documentation only.

Autocad product

spesification of autocad

AutoCAD LT
AutoCAD LT® software, the world’s best-selling 2D drafting and detailing tool, helps you simplify daily tasks with full DWG native file format compatibility. Get started right away with a user-friendly interface, and increase your productivity with easy-to-find commands.


Autodesk Design Review
Accelerate design reviews with Autodesk® Design Review software, the all-digital way to review, mark up, and track changes to 2D and 3D designs without the original design creation software.


Autodesk Buzzsaw
Autodesk® Buzzsaw® software, delivered on-demand, helps organizations simplify and centralize all project-related documents and information, enabling the successful execution of your projects based on timely decisions and accurate information.


AutoCAD Raster Design
Use AutoCAD® Raster Design software with AutoCAD software and applications based on AutoCAD to extend the value of scanned drawings and maps, aerial photos, satellite imagery, and digital elevation models.


Autodesk Seek
Search, select, and specify building products and design content from within your AEC design application or web browser—try it no

autocad free download

Autocad Downnload Software


Features & Specifications
Features
Core capabilities of AutoCAD® software allow you to explore, document, and communicate your ideas clearly and efficiently, as well as customize your CAD software to tackle specific challenges:

* Explore
Use AutoCAD to explore design ideas more powerfully and efficiently in 3D.

* Document
AutoCAD gives you the power to draft and document your designs quickly and easily.

* Communicate
Designs don’t live in a vacuum. Communicate quickly and easily, with robust presentation and collaboration tools.

* Customize
Customize and configure AutoCAD to meet your needs. Select from thousands of third-party add-ons and applications.