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July 2, 2014 05:47
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<!doctype html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<title>Test</title> | |
</head> | |
<body> | |
<article> | |
<h1>Computer Graphics</h1> | |
<p> | |
Computer graphics are graphics created using computers and the representation of image data | |
by a computer specifically with help from specialized graphic hardware and software. | |
The interaction and understanding of computers and interpretation of data has been made | |
easier because of computer graphics. Computer graphic development has had a significant | |
impact on many types of media and have revolutionized animation, movies and the video | |
game industry. | |
</p> | |
<h1>Overview</h1> | |
<p> | |
The term computer graphics has been used in a broad sense to describe "almost everything on | |
computers that is not text or sound".[1] Typically, the term computer graphics refers to | |
several different things: | |
</p> | |
<ul> | |
<li>the representation and manipulation of image data by a computer</li> | |
<li>the various technologies used to create and manipulate images</li> | |
<li> | |
the sub-field of computer science which studies methods for digitally synthesizing and | |
manipulating visual content, see study of computer graphics | |
</li> | |
</ul> | |
<p> | |
Computer graphics is widespread today. Computer imagery is found on television, in newspapers, | |
for example in weather reports, or for example in all kinds of medical investigation and surgical | |
procedures. A well-constructed <a href="http://en.wikipedia.org/wiki/Chart">graph</a> can present | |
complex statistics in a form that is easier to understand and interpret. In the media "such graphs | |
are used to illustrate papers, reports, thesis", and other presentation material.[2] | |
Many powerful tools have been developed to visualize data. Computer generated imagery can be | |
categorized into several different types: two dimensional (2D), three dimensional (3D), and animated | |
graphics. As technology has improved, 3D computer graphics have become more common, but 2D computer | |
graphics are still widely used. Computer graphics has emerged as a sub-field of computer science | |
which studies methods for digitally synthesizing and manipulating visual content. Over the past | |
decade, other specialized fields have been developed like information visualization, and scientific | |
visualization more concerned with "the visualization of three dimensional phenomena (architectural, | |
meteorological, medical, biological, etc.), where the emphasis is on realistic renderings of volumes, | |
surfaces, illumination sources, and so forth, perhaps with a dynamic (time) component".[3] | |
</p> | |
</article> | |
<section id="result"></section> | |
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, statistics = [] | |
, addedWords = {} | |
, text = body.textContent; | |
text = text.toLowerCase(); | |
var words = text.split(/\W+/); | |
var wordsLength = words.length; | |
for (var i = 0; i < wordsLength; i++) { | |
var word = words[i]; | |
// if the word has not been added and doesn't match a digit or space. | |
if (!addedWords.hasOwnProperty(word) && !word.match(/[0-9]/) && word.trim().length > 0) { | |
var finder = "\\b" + word + "\\b"; | |
var reg = new RegExp(finder, 'g'); | |
var count = text.match(reg).length; | |
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statistics.push(statistic); | |
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statistics.sort(function (a, b) { | |
return b.count - a.count; | |
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return statistics; | |
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function appendStatistics() { | |
var statistics = getWordStatistics(); | |
var ul = document.getElementById("result"); | |
for (var i = 0; i < statistics.length; i++) { | |
var statistic = statistics[i]; | |
var li = document.createElement('li'); | |
li.textContent = statistic.word + "(" + statistic.count + ")"; | |
ul.appendChild(li); | |
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function init(){ | |
appendStatistics(); | |
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init(); | |
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</body> | |
</html> |
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