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AutoCAD Crack + Free [Win/Mac]

This guide can be used for 3DS Max, Maya, Sketchup and other 3D software. Tutorials for other CAD programs will be included, as well as a review of the available mobile and web apps.

Videos, B-Roll, and Tutorials


AutoCAD is a 3D CAD software program developed by Autodesk, Inc. It is designed primarily for designers and engineers. Initially available for MS-DOS computers running on the CP/M operating system, it was later released as a disk-based application. Autodesk acquired the rights to the program, when it was still a CP/M application, in 1986, and it became a Windows application when Microsoft Windows was released in 1985. The latest release of AutoCAD is 2017 version 1810.

AutoCAD Architecture

AutoCAD architecture consists of the architecture that governs the basic functioning of the AutoCAD system as well as the toolbars and windows of the program.

The AutoCAD Architecture is divided into several components:

Architecture – The architecture of AutoCAD is based on the concept of a network of shared resources that are allocated on a demand-driven basis. AutoCAD has a Model Space, where all the components of a model (features, dimensions, dimensions constraints, and so on) are saved. The Architectural Information, consisting of the information regarding the 3D model is saved in the Model Space. The Tools Space is the tool window or toolbars that you use to work on the design. A 3D View is a window that shows a view of the objects of a model. Each view has a name and is connected to a specific model. Every view has its own area in the View Space. The Architecture has two layers, the Application Architecture and the Session Architecture.

Application Architecture is where the operating system API calls and graphics routines are handled. The communication with the model space is carried out by means of messages. A viewer communicates with the model space by means of commands. The communication with the user interface occurs via messages.

Session Architecture is the layer that deals with the communication among the views and the Model Space. The communication among views, the Model Space and the user interface occurs via the following messages:

Messages sent from the viewer to the model space are:

Drawing Editor and Options API

Message IDSEND

Direct API

Command API

Message ID

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In 2008, AutoCAD Xcelsius for Windows was introduced as an alternative to AutoCAD LT. Xcelsius was designed to help users reduce the complexity of designing using the DWG format. Xcelsius uses a simplified set of features to ease interaction with AutoCAD. It is designed to be a simplified DWG editor and a simplified drawing viewer. Xcelsius supports the ability to work in 2D and 3D, and also supports many of the same editing features as AutoCAD LT.

See also

Eclipse DWG
List of CAD editors for AutoCAD


Further reading

External links

Official AutoCAD website
Official AutoCAD LT website

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* This method returns a new empty object.
* @static
* @memberOf _
* @since 4.13.0
* @category Util
* @returns {Object} Returns the new empty object.
* @example
* var objects = _.times(2, _.stubObject);
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* // => false
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module.exports = stubObject;
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Mutable array in Objective-C++

I am reading Apple’s doc on Objective-C++ here:
It says to use NSMutableArray if you are using arrays that need to be modified.
My question is: How can you declare NSMutableArray in file?
If I try to do something like:
NSMutableArray*> *orderedStrings;

I get an error saying “NSMutableArray is not a member of NSMutableArray”.


My question is: How can you declare NSMutableArray in file?

The NSMutableArray is a class and you can only create objects of classes. You can’t create an instance of an object of type NSMutableArray. All classes have a class pointer that you must send alloc messages to.
When the alloc message is executed, it will return a pointer to a new object. So you can send alloc to an NSMutableArray, and you will get a new NSMutableArray.
You can also send init messages to create instances of an object. The object will be returned, and you can then add your own values to that array.
If you want to keep a “template” array of mutable arrays, you can use an NSArray and add your mutable arrays to it. Then you can keep a reference to the NSArray in your header file.

Songs in the Key of Life

Songs in the Key of Life is the sixteenth studio album by American singer-songwriter James Taylor. It was his last studio album before his 1983 breakup with Warner Bros. Records. The album is a mixture of new songs, covers and even an Elvis Presley original.

The album was initially recorded at Henson Recording Studios in Los Angeles, California, United States, with George Benson producing and playing on some tracks. The entire album was recorded again at Henson Recording Studios with David Lindley as the sole producer.

Track listing
All tracks composed

What’s New In?

Insert Quick Style Marks:

Quickly mark and dimension an object or placement on the drawing with a ready-to-use style. (video: 2:43 min.)

Automatic Geometric Properties:

Drawing commands are dynamically determined based on the current drawing and drawing context. This is the first release of the Dynamic Properties specification. (video: 1:08 min.)

New Edit Paths and Bounding Boxes:

The new Edit Paths command allows you to start and end editing a path by using the path tools. The Bounding Box tool allows you to accurately size and position a box on the drawing canvas. (video: 1:09 min.)

New Tape Measure & Area Tool:

You can add tape measure lines and area marks to your drawings with the Tape Measure and Area Tools, respectively. (video: 2:23 min.)

Updated Tools:

The ODB command set was recently updated with new commands, and the iconic pick tool, let you pick any two points on the drawing canvas and interactively edit them. There is a new context-sensitive right-click menu for easier access to some drawing tools. (video: 2:28 min.)

The ANSI Quick Command Set, Quick Styles and Markup helpers were also recently updated.

When finished, you can export the drawing as a drawing package that you can share with others. (video: 1:19 min.)

What’s coming next:

We’re excited to announce many new features for AutoCAD in the coming year.

There will be new releases of AutoCAD each month.

This is a list of the high-level features we plan to deliver in the next release of AutoCAD.

There will be additional product documentation, tutorials, videos, white papers and more than ever before. We will continue to make our product better, easier to use and more accessible to all.

Each release of AutoCAD will be built on the previous release and there will be no need to buy a new license or make any other changes to your existing installation. We are confident this strategy will enable AutoCAD to continue to exceed expectations for years to come.

2D Drafting and Data Management:

See our full planning page for more information on the next features in the 2D drafting area.

3D Modeling and Rendering:

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There are several ways to interact with the game, so please check the appropriate section for more information.
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