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STL is a file format native to the stereolithography CAD software created by 3D Systems. [3] [4] [5] Chuck Hull, the inventor of stereolithography and 3D Systems’ founder, reports that the file extension is an abbreviation for stereolithography, [6] although it is also referred to as standard triangle language or standard tessellation language.
Making a 3D-model of a Viking belt buckle using a hand held VIUscan 3D laser scanner. 3D scanning is the process of analyzing a real-world object or environment to collect three dimensional data of its shape and possibly its appearance (e.g. color). The collected data can then be used to construct digital 3D models. A 3D scanner can be based
DWG (from drawing) is a proprietary [3] binary file format used for storing two- and three- dimensional design data and metadata.It is the native format for several CAD packages including DraftSight, AutoCAD, ZWCAD, IntelliCAD (and its variants), Caddie and Open Design Alliance compliant applications.
Scanner support Freehand sketch Raster filters Change color depth Image resize Rotate Crop Raster shapes Easy Trace Yes Yes Yes Yes Yes Yes Yes Yes Graphic Tracer Professional Yes Yes N/A N/A Yes Yes No N/A Adobe Illustrator No No No No Yes Yes No No Potrace N/A N/A N/A N/A N/A N/A N/A N/A ImageTracer N/A N/A N/A N/A N/A N/A N/A N/A Scan2CAD Yes
Basically, a 3D model is formed from points called vertices that define the shape and form polygons. A polygon is an area formed from at least three vertices (a triangle). A polygon of n points is an n-gon. [10] The overall integrity of the model and its suitability to use in animation depend on the structure of the polygons.
2D to 3D conversion – Process of transforming 2D film to 3D form; 3D data acquisition and object reconstruction – Scanning of an object or environment to collect data on its shape; Epipolar geometry – Geometry of stereo vision; Camera resectioning – Process of estimating the parameters of a pinhole camera model; Computer stereo vision ...
AOL
A 2D CAD drawing A 3D CAD model Computer-aided design ( CAD ) is the use of computers (or workstations ) to aid in the creation, modification, analysis, or optimization of a design . [ 1 ] : 3 This software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to ...