AutoCAD is a software application for computer-aided design ( CAD ) and drafting.

AutoCAD DXF ( Drawing Interchange Format, or Drawing Exchange Format ) is a CAD data file format developed by Autodesk for enabling data interoperability between AutoCAD and other programs.

Coronary artery disease ( CAD ; also atherosclerotic heart disease ) is the result of the accumulation of

Direct3D is also used by other software applications for visualization and graphics tasks such as CAD / CAM engineering.

Forth is a simple yet extensible language ; its modularity and extensibility permit the writing of high-level programs such as CAD systems.

* 1992 – The London Ambulance Service is thrown into chaos after the implementation of a new CAD, or Computer Aided Dispatch, system which failed.

OpenGL was developed by Silicon Graphics Inc. in 1992 and is widely used in CAD, virtual reality, scientific visualization, information visualization, flight simulation, and video games.

PostScript is noteworthy for implementing on-the fly rasterization ; everything, even text, is specified in terms of straight lines and cubic Bézier curves ( previously found only in CAD applications ), which allows arbitrary scaling, rotating and other transformations.

All of the aforementioned is supplied by the Queen-in-Council through budgets approved by parliament, as is the prime minister's annual salary of CAD $ 317, 574.

The term tapeout currently is used to describe the creation of the photomask itself from the final approved electronic CAD file.

Computer-aided design ( CAD ), also known as computer-aided design and drafting ( CADD ), is the use of computer systems to assist in the creation, modification, analysis, or optimization of a design.

CAD software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing.

CAD output is often in the form of electronic files for print or machining operations.

CAD is an important industrial art extensively used in many applications, including automotive, shipbuilding, and aerospace industries, industrial and architectural design, prosthetics, and many more.

CAD is also widely used to produce computer animation for special effects in movies, advertising and technical manuals.

While the goal of automated CAD systems is to increase efficiency, they are not necessarily the best way to allow newcomers to understand the geometrical principles of Solid Modeling.

Some CAD software is capable of dynamic mathematical modeling, in which case it may be marketed as CADD.

CAD is used in the design of tools and machinery and in the drafting and design of all types of buildings, from small residential types ( houses ) to the largest commercial and industrial structures ( hospitals and factories ).

CAD is mainly used for detailed engineering of 3D models and / or 2D drawings of physical components, but it is also used throughout the engineering process from conceptual design and layout of products, through strength and dynamic analysis of assemblies to definition of manufacturing methods of components.

CAD is one part of the whole Digital Product Development ( DPD ) activity within the Product Lifecycle Management ( PLM ) processes, and as such is used together with other tools, which are either integrated modules or stand-alone products, such as:

* A very High resolution monochrome video card with blitter and hardware text line and arc drawing capability, was designed for CAD applications, based on the NEC µPD7220 chip designed for graphic terminals, but was also used by some personal computers like the DEC Rainbow, and notably also for the Tulip System I.

The armed forces of East Pakistan also consisted the paramilitary organization, the Volunteers from the intelligence unit of the ISI's Covert Action Division ( CAD ).

* On August 9, 1988, in what became the biggest trade in NHL history ( also known as " The Trade Of The Century "), Wayne Gretzky was traded along with teammates Marty McSorley and Mike Krushelnyski from Edmonton to the Los Angeles Kings in exchange for Martin Gelinas, Jimmy Carson, three first round draft picks, and $ 15 million cash ( approximately $ 18 million CAD in 1988 ).

CAD software uses either vector based graphics to depict the objects of traditional drafting, or may also produce raster graphics showing the overall appearance of designed objects.

Modern CAD packages can also frequently allow rotations in three dimensions, allowing viewing of a designed object from any desired angle, even from the inside looking out.

Potential blockage of view corridors and shadow studies are also frequently analyzed through the use of CAD.

The features in the CAD system can be used for the variety of tools for measurement such as tensile strength, yield strength, also its stress and strain and how the element gets affected in certain temperatures.

( Daisy Systems also had something called Daisy DNIX on some of their CAD workstations.

* Patrick-Gilles Maillot's Thesis an extension of the Bresenham line drawing algorithm to perform 3D hidden lines removal ; also published in MICAD ' 87 proceedings on CAD / CAM and Computer Graphics, page 591-ISBN 2-86601-084-1.

The file specification was introduced by Esri .< ref > Esri also has another world file format that applies to computer-aided design or CAD drawing files.

Tablets are also popular for technical drawings and CAD, as one can typically put a piece of paper on them without interfering with their function.

VRML is also widely used as a file format for interchange of 3D models, particularly from CAD systems.

NV10's T & L engine also allowed Nvidia to enter the CAD market for the first time, with a product called Quadro.

Also industrial designers may build a protype first and then use industrial CT scanning to test for interior defects and also generate a CAD model.

Research groups like VLSI Design, CAD / CAM also have computing facilities which are accessible to other departments for development activities.

* Numerical computational geometry, also called machine geometry, computer-aided geometric design ( CAGD ), or geometric modeling, which deals primarily with representing real-world objects in forms suitable for computer computations in CAD / CAM systems.

Mastercam, CNC Software ’ s main product, started as a 2D CAM system with CAD tools that let machinists design virtual parts on a computer screen and also guided computer numerical controlled ( CNC ) machine tools in the manufacture of parts.

Its native format is the DGN format, though it can also read and write a variety of standard CAD formats including DWG and DXF and produce media output in such forms as rendered images ( JPEG and BMP ), animations ( AVI ), 3D web pages in Virtual Reality Modeling Language ( VRML ), and Adobe Systems PDF.

Financial institutions in Canada are required to track large cash transactions ( daily total greater than CAD $ 10, 000. 00 or equivalent value in other currencies ) that can be used to finance terrorist activities in and beyond Canada's borders and report them to FINTRAC.

Plotters are used primarily in technical drawing and CAD applications, where they have the advantage of working on very large paper sizes while maintaining high resolution.

Tracker balls are commonly used on CAD workstations for ease of use, where there may be no desk space on which to use a mouse.

Pucks are typically used for tracing in CAD / CAM / CAE work, and are often accessories for larger graphics tablets.

CAD may be used to design curves and figures in two-dimensional ( 2D ) space ; or curves, surfaces, and solids in three-dimensional ( 3D ) space.

Original schematics were done by hand, using standardized templates or pre-printed adhesive symbols, but today Electrical CAD software is often used.

ACIS is used by many software developers in industries such as computer-aided design ( CAD ), Computer-aided manufacturing ( CAM ), Computer-aided engineering ( CAE ), Architecture, engineering and construction ( AEC ), Coordinate-measuring machine ( CMM ), 3D animation, and shipbuilding.

2D CAD systems can be used to create plans for large projects such as buildings and aircraft but provide no way to check the various components will fit together.

Both 2D and 3D CAD systems can be used to produce technical drawings for any discipline.

The most sophisticated techniques are beginning to be used for the electronic tracking of changes to CAD files ( see product data management ), supplanting the " manual " electronic implementation of traditional revision control.

Its first practical application was as a second processor to the BBC Micro, where it was used to develop the simulation software to finish work on the support chips ( VIDC, IOC, MEMC ) and to speed up the operation of the CAD software used in developing ARM2.