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  2. AutoCAD version history - Wikipedia

    en.wikipedia.org/wiki/AutoCAD_version_history

    The first release of the software started with version 1.0 in December 1982. [1] The software has been continuously updated since its initial release. AutoCAD opens documents with DWG compatibility as a "DWG file format version code" where the specific version code can be found by opening the .dwg file in Windows Notepad or any text editor program.

  3. Scaling (geometry) - Wikipedia

    en.wikipedia.org/wiki/Scaling_(geometry)

    In uniform scaling with a non-zero scale factor, all non-zero vectors retain their direction (as seen from the origin), or all have the direction reversed, depending on the sign of the scaling factor. In non-uniform scaling only the vectors that belong to an eigenspace will retain their direction. A vector that is the sum of two or more non ...

  4. AutoCAD - Wikipedia

    en.wikipedia.org/wiki/AutoCAD

    AutoCAD is a 2D and 3D computer-aided design (CAD) software application developed by Autodesk. [1] It was first released in December 1982 for the CP/M and IBM PC platforms as a desktop app running on microcomputers with internal graphics controllers . [ 2 ]

  5. AutoCAD Architecture - Wikipedia

    en.wikipedia.org/wiki/AutoCAD_Architecture

    AutoCAD Architecture (abbreviated as ACA) is a version of Autodesk's flagship product, AutoCAD, with tools and functions specially suited to architectural work. Architectural objects have a relationship to one another and interact with each other intelligently.

  6. Non-uniform rational B-spline - Wikipedia

    en.wikipedia.org/wiki/Non-uniform_rational_B-spline

    Non-uniform rational basis spline (NURBS) is a mathematical model using basis splines (B-splines) that is commonly used in computer graphics for representing curves and surfaces. It offers great flexibility and precision for handling both analytic (defined by common mathematical formulae ) and modeled shapes .

  7. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    1. Center line, the central axis of a feature. 2. Class, for example, "paint per spec XYZ revision C type 1 class 2" may be abbreviated as "paint per spec XYZ REV C TY 1 CL 2" or even in some cases "paint per spec XYZ-C-1-2". (The latter practice is not uncommon but is cryptic for workers with minimal training and experience. The first two ...

  8. CAD standards - Wikipedia

    en.wikipedia.org/wiki/CAD_standards

    In AutoCAD usually parts to be printed in black are drawn in 1 to 7 basic colors. Color layer: Green-Center, Magenta-Measure of length, and Blue-Hidden. Color layer: Green-Center, Magenta-Measure of length, and Blue-Hidden.

  9. History of CAD software - Wikipedia

    en.wikipedia.org/wiki/History_of_CAD_software

    Availability of free and open-source CAD software and high costs of advanced and 3D CAD software may restrain the growth of the CAD software market. [25] Free and open-source CAD software packages include FreeCAD , [ 26 ] [ 27 ] [ 28 ] BRL-CAD developed for the US Army, [ 29 ] [ 30 ] QCAD Community Edition , [ 31 ] LibreCAD [ 32 ] and others.