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Private Use Areas. In Unicode, a Private Use Area ( PUA) is a range of code points that, by definition, will not be assigned characters by the Unicode Consortium. [1] Three private use areas are defined: one in the Basic Multilingual Plane ( U+E000–U+F8FF ), and one each in, and nearly covering, planes 15 and 16 ( U+F0000–U+FFFFD, U+100000 ...
This is a list of file signatures, data used to identify or verify the content of a file. Such signatures are also known as magic numbersor Magic Bytes. Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible. However, some file signatures can be ...
A hex editor (or binary file editor or byte editor) is a computer program that allows for manipulation of the fundamental binary data that constitutes a computer file. The name 'hex' comes from ' hexadecimal ', a standard numerical format for representing binary data. A typical computer file occupies multiple areas on the storage medium, whose ...
AutoLISP. AutoLISP is a dialect of the programming language Lisp built specifically for use with the full version of AutoCAD and its derivatives, which include AutoCAD Civil 3D, AutoCAD Map 3D, AutoCAD Architecture and AutoCAD Mechanical. [ 1] Neither the application programming interface (API) nor the interpreter to execute AutoLISP code is ...
The file continues with any number of triangles, each represented as follows: [15] facet normal n i n j n k outer loop vertex v1 x v1 y v1 z vertex v2 x v2 y v2 z vertex v3 x v3 y v3 z endloop endfacet. where each n or v is a floating-point number in sign-mantissa-e-sign-exponent format, e.g., 2.648000e-002. The file concludes with: endsolid ...
The shapefile format is a geospatial vector data format for geographic information system (GIS) software. It is developed and regulated by Esri as a mostly open specification for data interoperability among Esri and other GIS software products. [ 1] The shapefile format can spatially describe vector features: points, lines, and polygons ...
1 Control-C has typically been used as a "break" or "interrupt" key. 2 Control-D has been used to signal "end of file" for text typed in at the terminal on Unix / Linux systems. Windows, DOS, and older minicomputers used Control-Z for this purpose. 3 Control-G is an artifact of the days when teletypes were in use.
Vector graphics. Vector graphics are a form of computer graphics in which visual images are created directly from geometric shapes defined on a Cartesian plane, such as points, lines, curves and polygons. The associated mechanisms may include vector display and printing hardware, vector data models and file formats, as well as the software ...