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  2. AutoLISP - Wikipedia

    en.wikipedia.org/wiki/AutoLISP

    As the AutoCAD command line functions as a read–eval–print loop (REPL), this would normally print "Hello World!" to the command line, followed immediately by the return value of the call to princ. Therefore, without the final call to the princ function, the result of this would be: Hello World!"\nHello World!" The prin1 function may also be ...

  3. 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]

  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. CAD standards - Wikipedia

    en.wikipedia.org/wiki/CAD_standards

    Most common: BS 1192, which relies heavily on the Code of Procedure for the Construction Industry; AIA Cad Layer Guidelines, 2nd edition (1997), has great usage in the USA; ISO 13567-1/3, International standard, common in Northern Europe; AEC (UK), an adaptation of BS-1192 based on Uniclass.

  6. Lisp (programming language) - Wikipedia

    en.wikipedia.org/wiki/Lisp_(programming_language)

    In contrast to most other major programming languages, Lisp allows implementing control structures using the language. Several control structures are implemented as Lisp macros, and can even be macro-expanded by the programmer who wants to know how they work. Both Common Lisp and Scheme have operators for non-local control flow.

  7. List of BIM software - Wikipedia

    en.wikipedia.org/wiki/List_of_BIM_software

    Help; Learn to edit; Community portal; Recent changes; Upload file; Special pages

  8. Engineering drawing abbreviations and symbols - Wikipedia

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

    CAD: computer-aided design, computer-aided drafting; cadmium [plating]: CAGE: Commercial and Government Entity [code]: A CAGE code is a unique identifier to label an entity (that is, a specific government agency or corporation at a specific site) that is a CDA, ODA, or MFR of the part defined by the drawing.

  9. Rubbersheeting - Wikipedia

    en.wikipedia.org/wiki/Rubbersheeting

    ESRI's ArcGIS 8.3+ has the capability of rubbersheeting vector data, and ArcMap 9.2+ may also rubber-sheet raster layers.; Autodesk's AutoCAD Map 3D [1] and AutoCAD Civil 3D (which includes most of AutoCAD Map 3D's functionality) allows a user to rubbersheet vector data, and Autodesk's Raster Design (an add-in product for AutoCAD-based products) allows a user to rubbersheet raster data.