#RENDER VECTOR 2D HTML5 CODE#

restore - allows you to restore the state of the context from a previously saved state.

save - allows you to save the current state of the context.

rotate - allows you to rotate the x and y coordinates of the current context.

scale - allows you to scale the current context.

Some of the notable ones are outlined below.

#RENDER VECTOR 2D HTML5 CODE#

Here’s the snippet of code for referencing the context.Įach canvas has its own context, so if your page contains multiple canvas elements you must have a reference to each individual context that you want to work with.Īside from getContext, there are plenty of other functions (functions of an object are called methods in JavaScript) at your disposal in the canvas 2D API. It has one parameter, which currently is 2d. To reference the context of the canvas, you call getContext, which is a method on the canvas element. The canvas 2D API is an object that allows you to draw and manipulate images and graphics on a canvas element. Since JavaScript is the workhorse behind the Canvas, several performance tweaks can be used to the user experience by rendering image/animation faster. When it comes to delivering fast image/animation, the operation is taken care by GPU, CPU continues server for the rest of the task, resulting in accelerated graphics performance.Ĭhrome 27, Firefox 22, IE10, And Opera Next supports hardware acceleration and shows significant improve in rendering graphics. Modern desktops have a GPU (Graphical Processing Unit) along with a CPU(Central Processing Unit). Because that renders the image/animations with the speed you desire your users should experience. With Hardware Acceleration enabled browsers, as a developer, you will be pleased enough. Actually, they complement each other while delivering real-world applications. If you to render graphics really fast, like in a game, or don’t want to deal with XML, choose the canvas.

So which one to choose over another? to develop a resolution dependent, highly interactive and vector based graphics, choose SVG. Since it is XML under the hood, targeting different elements is easier.Being resolutions independent, it can scale for different screen resolutions.you can save images off the canvas whereas you can’t using SVG.When it comes to draw complex graphics, canvas is faster.Here are some reasons to use the canvas over SVG. Like SVG, you may add style and dynamic behavior to it. It allows you to draw graphics and shapes through JavaScript. You can add styles to it with CSS and add dynamic behavior to it using the SVG DOM. SVG is an XML-based vector graphics format. It’s important to understand the differences between SVG and canvas elements. The following image shows these coordinates on a canvas. X being the horizontal coordinate and y being the vertical coordinate. The context gives you access to the 2D properties and methods that We’ll dive deeper into the context later.Įvery canvas element has x and y coordinates. To draw on a canvas, you need to reference the context of the canvas. This again has objects, properties, and methods.

Each canvas may have an id using which you may target a specific canvas through JavaScript.Įach canvas element has a 2D Context. We will see how this boring rectangle drawn with canvas may be supercharged to provide you with an awesome graphics.Ī webpage may contain multiple canvas elements. If you don't find this much exciting, please read on. The image below shows the canvas with a black border. Simply saying, with the help of JavaScript and HTML5 canvas element you may render 2D shapes and bitmap images. Officially a canvas is 'a resolution-dependent bitmap canvas which can be used for rendering graphs, game graphics, or other visual images on the fly'. If you're unfamiliar with HTML5, before diving into this article, try learning more here. In a moment we will see what canvas is capable of and how you may use it. Most of the modern browsers like Chrome, Firefox, Safari, Opera, IE9 and 10 support it. Users may use those applications without using proprietary browser plug-ins like Adobe's flash player. Developers like to use it for creating rich web applications. Canvas is one of the most sought after feature in HTML5.

Render vector 2d html5