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diff --git a/files/uk/web/api/canvas_api/index.html b/files/uk/web/api/canvas_api/index.html new file mode 100644 index 0000000000..70dbbf1f8d --- /dev/null +++ b/files/uk/web/api/canvas_api/index.html @@ -0,0 +1,166 @@ +--- +title: Canvas API +slug: Web/API/Canvas_API +tags: + - API + - Canvas + - NeedsTranslation + - Overview + - Reference + - TopicStub +translation_of: Web/API/Canvas_API +--- +<div>{{CanvasSidebar}}</div> + +<p class="summary">Доданий в <a href="/en-US/docs/HTML/HTML5">HTML5</a>, <strong>елемент HTML {{HTMLElement("canvas")}}</strong> призначений для створення графіки засобами <a href="/en-US/docs/Web/JavaScript">JavaScript</a>. Для прикладу, його використовують для малювання графіків, створення композиції фотографій, створення анімацій, і навіть для обробки та рендерингу відео в реальному часі.</p> + +<p>Mozilla applications gained support for <code><canvas></code> starting with Gecko 1.8 (i.e. <a href="/en-US/docs/Mozilla/Firefox/Releases/1.5">Firefox 1.5</a>). The element was originally introduced by Apple for the OS X Dashboard and Safari. Internet Explorer supports <code><canvas></code> from version 9 onwards; for earlier versions of IE, a page can effectively add support for <code><canvas></code> by including a script from Google's <a href="http://excanvas.sourceforge.net/">Explorer Canvas</a> project. Google Chrome and Opera 9 also support <code><canvas></code>.</p> + +<p>The <code><canvas></code> element is also used by <a href="/en-US/docs/Web/WebGL">WebGL</a> to draw hardware-accelerated 3D graphics on web pages.</p> + +<h2 id="Example">Example</h2> + +<p>This is just a simple code snippet which uses the {{domxref("CanvasRenderingContext2D.fillRect()")}} method.</p> + +<h3 id="HTML">HTML</h3> + +<pre class="brush: html"><canvas id="canvas"></canvas> +</pre> + +<h3 id="JavaScript">JavaScript</h3> + +<pre class="brush: js">var canvas = document.getElementById('canvas'); +var ctx = canvas.getContext('2d'); + +ctx.fillStyle = 'green'; +ctx.fillRect(10, 10, 100, 100); +</pre> + +<p>Edit the code below and see your changes update live in the canvas:</p> + +<div class="hidden"> +<h6 id="Playable_code">Playable code</h6> + +<pre class="brush: html"><canvas id="canvas" width="400" height="200" class="playable-canvas"></canvas> +<div class="playable-buttons"> + <input id="edit" type="button" value="Edit" /> + <input id="reset" type="button" value="Reset" /> +</div> +<textarea id="code" class="playable-code"> +ctx.fillStyle = 'green'; +ctx.fillRect(10, 10, 100, 100);</textarea> +</pre> + +<pre class="brush: js">var canvas = document.getElementById('canvas'); +var ctx = canvas.getContext("2d"); +var textarea = document.getElementById('code'); +var reset = document.getElementById('reset'); +var edit = document.getElementById('edit'); +var code = textarea.value; + +function drawCanvas() { + ctx.clearRect(0, 0, canvas.width, canvas.height); + eval(textarea.value); +} + +reset.addEventListener('click', function() { + textarea.value = code; + drawCanvas(); +}); + +edit.addEventListener('click', function() { + textarea.focus(); +}) + +textarea.addEventListener('input', drawCanvas); +window.addEventListener('load', drawCanvas); +</pre> +</div> + +<p>{{ EmbedLiveSample('Playable_code', 700, 360) }}</p> + +<h2 id="Reference">Reference</h2> + +<div class="index"> +<ul> + <li>{{domxref("HTMLCanvasElement")}}</li> + <li>{{domxref("CanvasRenderingContext2D")}}</li> + <li>{{domxref("CanvasGradient")}}</li> + <li>{{domxref("CanvasPattern")}}</li> + <li>{{domxref("ImageBitmap")}}</li> + <li>{{domxref("ImageData")}}</li> + <li>{{domxref("TextMetrics")}}</li> + <li>{{domxref("Path2D")}} {{experimental_inline}}</li> +</ul> +</div> + +<p>The interfaces related to the <code>WebGLRenderingContext</code> are referenced under <a href="/en-US/docs/Web/WebGL" title="/en-US/docs/Web/WebGL">WebGL</a>.</p> + +<h2 id="Guides_and_tutorials">Guides and tutorials</h2> + +<dl> + <dt><a href="/en-US/docs/Web/API/Canvas_API/Tutorial">Canvas tutorial</a></dt> + <dd>A comprehensive tutorial covering both the basic usage of <code><canvas></code> and its advanced features.</dd> + <dt><a href="/en-US/Add-ons/Code_snippets/Canvas">Code snippets: Canvas</a></dt> + <dd>Some extension developer-oriented code snippets involving <code><canvas></code>.</dd> + <dt><a href="/en-US/docs/Web/API/Canvas_API/A_basic_ray-caster">Demo: A basic ray-caster</a></dt> + <dd>A demo of ray-tracing animation using canvas.</dd> + <dt><a href="/en-US/docs/Web/API/Canvas_API/Drawing_DOM_objects_into_a_canvas">Drawing DOM objects into a canvas</a></dt> + <dd>How to draw DOM content, such as HTML elements, into a canvas.</dd> + <dt><a href="/en-US/docs/Web/API/Canvas_API/Manipulating_video_using_canvas">Manipulating video using canvas</a></dt> + <dd>Combining {{HTMLElement("video")}} and {{HTMLElement("canvas")}} to manipulate video data in real time.</dd> +</dl> + +<h2 id="Resources">Resources</h2> + +<h3 id="Generic">Generic</h3> + +<ul> + <li><a href="http://joshondesign.com/p/books/canvasdeepdive/title.html">HTML5 Canvas Deep Dive</a></li> + <li><a href="http://bucephalus.org/text/CanvasHandbook/CanvasHandbook.html">Canvas Handbook</a></li> +</ul> + +<h3 id="Libraries">Libraries</h3> + +<ul> + <li><a href="http://fabricjs.com">Fabric.js</a> is an open-source canvas library with SVG parsing capabilities.</li> + <li><a href="https://github.com/ericdrowell/KineticJS">Kinetic.js</a> is an open-source canvas library focused on interactivity for desktop and mobile applications.</li> + <li><a href="http://paperjs.org/">Paper.js</a> is an open source vector graphics scripting framework that runs on top of the HTML5 Canvas.</li> + <li><a href="http://origamijs.com/docs/">Origami.js</a> is an open source lightweight canvas library.</li> + <li><a href="http://libcanvas.github.com/">libCanvas</a> is powerful and lightweight canvas framework.</li> + <li><a href="http://processingjs.org">Processing.js</a> is a port of the Processing visualization language.</li> + <li><a href="https://playcanvas.com/">PlayCanvas</a> is an open source game engine.</li> + <li><a href="http://www.pixijs.com/">Pixi.js</a> is an open source game engine.</li> + <li><a href="http://www.liquidx.net/plotkit/">PlotKit</a> is a charting and graphing library.</li> + <li><a class="link-https" href="https://github.com/jeremyckahn/rekapi">Rekapi</a> is an animation key-framing API for Canvas.</li> + <li><a href="http://senchalabs.github.com/philogl/">PhiloGL</a> is a WebGL framework for data visualization, creative coding and game development.</li> + <li><a href="http://thejit.org/">JavaScript InfoVis Toolkit</a> creates interactive 2D Canvas data visualizations for the Web.</li> + <li><a href="http://www.createjs.com/easeljs">EaselJS</a> is a free/open source library to make it easier to use canvas for games and art</li> + <li><a href="http://scrawl.rikweb.org.uk/">Scrawl-canvas</a> is another open-source javascript library for creating and manipulating 2d canvas elements</li> + <li><a href="https://www.patrick-wied.at/static/heatmapjs/">heatmap.js</a> is an open source library to create canvas based heatmaps</li> +</ul> + +<h2 id="Specifications">Specifications</h2> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{SpecName('HTML WHATWG', 'scripting.html#the-canvas-element', '<canvas>')}}</td> + <td>{{Spec2('HTML WHATWG')}}</td> + <td> </td> + </tr> + </tbody> +</table> + +<h2 id="See_also">See also</h2> + +<ul> + <li><a href="/en-US/docs/Web/WebGL">WebGL</a></li> +</ul> |