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  2. AutoCAD version history - Wikipedia

    en.wikipedia.org/wiki/AutoCAD_version_history

    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. The file contents starts with this string. The file format version code (tag) is dependent on the AutoCAD version. [2]

  3. Walk cycle - Wikipedia

    en.wikipedia.org/wiki/Walk_cycle

    Walk cycles can be broken up into four key frames: the forward contact point, the first passing pose, the back contact point, and the second passing pose.Frames that are drawn between these key poses (traditionally known as in-betweens) are either hand-drawn or interpolated using computer software.

  4. AutoCAD - Wikipedia

    en.wikipedia.org/wiki/AutoCAD

    A man using AutoCAD 2.6 to digitize a drawing of a school building. AutoCAD was derived from a program that began in 1977, and then released in 1979 [5] named Interact CAD, [6] [7] [8] also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then Marinchip Software Partners) formation by Autodesk cofounder Michael Riddle.

  5. AutoLISP - Wikipedia

    en.wikipedia.org/wiki/AutoLISP

    AutoLISP is a small, dynamically scoped, dynamically typed Lisp language dialect with garbage collection, immutable list structure, and settable symbols, lacking in such regular Lisp features as macro system, records definition facilities, arrays, functions with variable number of arguments or let bindings.

  6. Key frame - Wikipedia

    en.wikipedia.org/wiki/Key_frame

    In video compression, a key frame, also known as an intra-frame, is a frame in which a complete image is stored in the data stream. In video compression, only changes that occur from one frame to the next are stored in the data stream, in order to greatly reduce the amount of information that must be stored.

  7. Alibre Design - Wikipedia

    en.wikipedia.org/wiki/Alibre_Design

    Alibre's products fall into two categories intended for different users and applications. Alibre Design Professional has a basic set of features intended for users to get started with CAD, whereas Alibre Design Expert is a 3D and 2D modeling application suitable or intended for professional use.

  8. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    Configure desired keypress in Keyboard and Mouse Preferences, Keyboard Shortcuts, Select the next source in Input menu. [1] Ctrl+Alt+K via KDE Keyboard. Alt+⇧ Shift in GNOME. Ctrl+\ Ctrl+Space: Print Ctrl+P: ⌘ Cmd+P: Ctrl+P: Ctrl+P: Open Help Menu F1 in GNOME: Ctrl+Alt+/ Windows Mobility Center Windows 7: ⊞ Win+X. Windows 10: ⊞ Win+X ...

  9. History of CAD software - Wikipedia

    en.wikipedia.org/wiki/History_of_CAD_software

    Between the mid-1940s and 1950s, various developments were made in computer software.Some of these developments include servo-motors controlled by generated pulse (1949), a digital computer with built-in operations to automatically coordinate transforms to compute radar related vectors (1951), and the graphic mathematical process of forming a shape with a digital machine tool (1952).