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The 3D modeling process with AutoCAD uses the wireframe model, where each wire frame is rendered one at a time. While the first generation of AutoCAD had only basic modeling tools, the most recent AutoCAD versions feature a wide range of specialized tools for creating detailed mechanical, architectural, and graphical designs.
History
AutoCAD was created by Karl O. Jansky, Dennis H. Taft, Dan Stein and John D. Willits, all of whom were working in the Xerox Palo Alto Research Center (PARC) in the mid-1970s. The concept of AutoCAD came from PARC's Donald G. Teal, who worked on a CAD application called "PlotCAD" that produced accurate plots of mathematical functions of up to three variables. Teal wrote a paper that was published in 1977, which described PlotCAD's features, and the names of the four programmers, identified by their initials, were added to the paper at the end as "DGT, KH, DDS, and JDW".
In 1979, Dennis H. Taft left PARC to start dBase International, which developed and marketed its own commercial database program and established a software-development center in San Diego, California. Taft started writing code for a new version of PlotCAD, which he renamed "AutoCAD" (after the adverb autocrat) and described in a software-development article published in the magazine Programmer in 1980. Development of AutoCAD began at what was then Xerox's main development center at 1 Pier Avenue, Palo Alto, CA, in late 1980. Taft hired John D. Willits to work on AutoCAD.
The AutoCAD team was housed in a building that doubled as a Xerox development lab, and the team worked with a small staff of programmers on PlotCAD and dBase II. As AutoCAD grew, the team divided into two groups, one with Taft and Willits writing code for AutoCAD, and the other with Jansky writing code for the "Auto-PREP" reporting program. Although the programming languages used were different, the basic philosophy of the two groups was the same: build a user interface that would be "discoverable and usable", and worry about performance later.
The first version of AutoCAD, with a user interface and a file format developed by the Auto-PREP group, was released in December 1982. Auto
AutoCAD
Users can use VBA macros to automate AutoCAD Product Key commands.
 In addition, AutoCAD comes bundled with many tools that automate many daily operations; some of which are listed below:
 Edit Path - Edits the current drawing path, as opposed to setting a new path.
 Move – Moves the selected entities.
 Create Linear – Creates a new line
 Rotate – Rotates the selected entities.
 Stretch – Stretch an entity along a specific axis.
 Snap – Creates a new perpendicular entity at the cursor location.
 Dialog Boxes - A collection of dialog boxes that can be created by VBA, which can be used for automation.
 AutoCAD Architectural Database - The AutoCAD Architecture menu is used to manage the various architectural databases. It also allows for editing and archiving of all the database's files.
Special features of AutoCAD include:
 Capability of using a mouse and keyboard simultaneously, for example, to zoom in or out a drawing. This is usually done by holding down the SHIFT key and moving the cursor using the mouse, or by holding down the control key and moving the cursor with the keyboard.
 Supports multiple CAD files.
 Ability to bring drawings into certain versions of AutoCAD (2003, 2002, 2000, and early releases).
 Ability to automatically save drawings after certain operations.
 Ability to work in locked mode, where any user with the appropriate lock can do anything to the drawing, and then the lock is removed and the drawing is saved. This mode is useful for trainees or for debugging.
See also
References
External links
AutoCAD website
Category:AutoCAD
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Category:Computer-aided design software for MacOSMaria Amália Pereira
Maria Amália Pereira (November 18, 1855 – November 12, 1933) was a Portuguese poet, journalist, educator, and women's rights activist. She is considered one of the leading voices of Portugal's 20th century liberal and republican revolution.
Early life
Born on November 18, 1855 in Lisbon, Pereira was the youngest daughter of businessman Francisco Pereira and Justina Mascarenhas. She was educated by tutors, read widely, and began writing. The family moved to England in 1866, and Pereira attended
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