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The name of the function includes a special prefix 'c:', which causes AutoCAD to recognize the function as a regular command. The user, upon typing 'pointlabel' at the AutoCAD command line, would be prompted to pick a point, either by typing the X and Y coordinates, or clicking a location in the drawing.
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Following Lisp, other high-level programming languages which feature linked lists as primitive data structures have adopted an append. To append lists, as an operator, Haskell uses ++, OCaml uses @. Other languages use the + or ++ symbols to nondestructively concatenate a string, list, or array.
HeeksCNC – an add-on for HeeksCAD. Maintained on Google Code. lignumCAD – a tool for designing furniture, based on Open CASCADE and Qt. Maintained on SourceForge. NaroCAD – a parametric modeling CAD application. PythonOCC – Python wrappers for Open CASCADE. FreeCAD – an open source CAD/CAE, based on Open CASCADE, Qt and Python.
The name LISP derives from "LISt Processor". [13] Linked lists are one of Lisp's major data structures, and Lisp source code is made of lists. Thus, Lisp programs can manipulate source code as a data structure, giving rise to the macro systems that allow programmers to create new syntax or new domain-specific languages embedded in Lisp.
Procedural programming languages are based on the concept of the unit and scope (the data viewing range) of an executable code statement. A procedural program is composed of one or more units or modules, either user coded or provided in a code library; each module is composed of one or more procedures, also called a function, routine ...
A symbol is a unique, named data object with several parts: name, value, function, property list, and package. Of these, value cell and function cell are the most important. Symbols in Lisp are often used similarly to identifiers in other languages: to hold the value of a variable; however there are many other uses.
AutoCAD (8 P) B. Building information modeling (1 C, 47 P) C. Computer-aided design parametric software (1 P) Computer-aided design software for Linux (27 P)