2D computer graphics | Wikipedia audio article
Channel: wikipedia tts
Date: 02/01/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/2D_computer_graphics


00:01:48 1 2D graphics techniques
00:04:29 2 Translation
00:04:54 3 Rotation
00:08:24 4 In two dimensions
00:10:50 4.1 Non-standard orientation of the coordinate system
00:12:21 4.2 Common rotations
00:13:13 5 Scaling
00:15:26 6 Using homogeneous coordinates
00:15:42 6.1 Direct painting
00:17:51 6.2 Extended color models
00:18:11 6.3 Layers
00:19:12 7 2D graphics hardware
00:19:33 8 2D graphics software
00:24:02 9 Developmental animation
00:25:13 10 See also
00:26:31 11 References
00:29:02 2D graphics hardware
00:30:59 2D graphics software
00:34:25 Developmental animation
00:35:15 See also



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SUMMARY
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2D computer graphics is the computer-based generation of digital images—mostly from two-dimensional models (such as 2D geometric models, text, and digital images) and by techniques specific to them.The word may stand for the branch of computer science that comprises such techniques or for the models themselves.

2D computer graphics are mainly used in applications that were originally developed upon traditional printing and drawing technologies, such as typography, cartography, technical drawing, advertising, etc.  In those applications, the two-dimensional image is not just a representation of a real-world object, but an independent artifact with added semantic value; two-dimensional models are therefore preferred, because they give more direct control of the image than 3D computer graphics (whose approach is more akin to photography than to typography).
In many domains, such as desktop publishing, engineering, and business, a description of a document based on 2D computer graphics techniques can be much smaller than the corresponding digital image—often by a factor of 1/1000 or more.  This representation is also more flexible since it can be rendered at different resolutions to suit different output devices.  For these reasons, documents and illustrations are often stored or transmitted as 2D graphic files.
2D computer graphics started in the 1950s, based on vector graphics devices. These were largely supplanted by raster-based devices in the following decades. The PostScript language and the X Window System protocol were landmark developments in the field.