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The canvas element is part of HTML5 and allows for dynamic, scriptable rendering of 2D shapes and bitmap images. It is a low level, procedural model that updates a bitmap. HTML5 Canvas also helps in making 2D games. While the HTML5 canvas offers its own 2D drawing API, it also supports the WebGL API to allow 3D rendering with OpenGL ES.
A uniform resource locator (URL), colloquially known as an address on the Web, [1] is a reference to a resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identifier (URI), [ 2 ] [ 3 ] although many people use the two terms interchangeably.
Instructure, Inc. was created to support the continued development of a learning management system known as Canvas or Canvas LMS, formally Instructure; once incorporated, the founders changed the name of the software from Instructure to Canvas.
If you need a test image for permanent demonstration purposes, for instance in a template's documentation, then instead use for instance the PNG image or Example-serious.jpg. File link button The Ogg file is the example inserted when a user clicks the "file link" button in the edit toolbar.
Examples of libraries which include such a canvas module include: in C++, KDE Plasma Workspaces Corona canvas; the Canvas element in HTML5; for Java, the AWT library Canvas; for Java, the Java FX library Canvas [permanent dead link ] for Java, the Swing library Canvas; for Java, the SWT library Canvas, associated with Eclipse
In this example, the image data is encoded with utf8 and hence the image data can broken into multiple lines for easy reading. Single quote has to be used in the SVG data as double quote is used for encapsulating the image source. A favicon can also be made with utf8 encoding and SVG data which has to appear in the 'head' section of the HTML:
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Tor Project reference documentation states, "After plugins and plugin-provided information, we believe that the HTML5 Canvas is the single largest fingerprinting threat browsers face today." [12] Tor Browser notifies the user of canvas read attempts and provides the option to return blank image data to prevent fingerprinting. [6]