Книга: Cad File Formats: Autocad Dxf, Acis, Edif, Spice, .Dwg, Iso 10303, G-Code, Stl, Caltech Intermediate Form, Express, Gerber File, Iges

Purchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge. Chapters: Autocad Dxf, Acis, Edif, Spice, .Dwg, Iso 10303, G-Code, Stl, Caltech Intermediate Form, Express, Gerber File, Iges, Robologix, Jt, Md3, Circuitlogix, Cad Data Exchange, List of Step Parts, Design Web Format, Simulation Software, Collada, Electronic Circuit Simulation, .3ds, Ply, Obj, Gdsii, Md2, Geometric Description Language, Iso 13399, Openctm, Input Output Buffer Information Specification, Open Design Alliance, Parasolid, Dgn, Vda 6.1, 3d Interop, Excellon File, Standard Parasitic Exchange Format, Sugar, Ibis Interconnect Modeling Specification, Archicad Library Part, Intergraph Standard File Formats, Catia Graphical Representation, Design Exchange Format, Vda-Fs. Excerpt: 3DS is one of the file formats used by the Autodesk 3ds Max 3D modeling, animation and rendering software. It was the native file format of the old Autodesk 3D Studio DOS (releases 1 to 4), which was popular until its successor (3D Studio MAX 1.0) replaced it in April 1996. Having been around since 1990 (when the first version of 3D Studio DOS was launched), it has grown to become a de facto industry standard for transferring models between 3D programs, or for storing models for 3D resource catalogs (along with OBJ , which is more frequently used as a model archiving file format). Structure 3ds is a binary file format , therefore it is faster to load, and smaller than human-readable text-based formats . The format is based in chunks , where each section of data is embedded in a block that contains a chunk identifier and the length of the data (to provide the location of the next main block), as well as the data itself. This allows parsers to skip chunks they don't recognize, and allows for extensions to the format. The chunks form a hierarchical structure, similar to an xml DOM tree . The first two bytes ...