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Simple Pie Graphs Using <canvas> element in HTML 5

Now a days graphs are playing a major role to visualise the statistics in the web applications. With the help of these graphs, user can see all the information in detail at a glance. One popular kind among those graphs is Pie Graphs. So i continued my work for plotting Pie diagram with the help of simple Javascript & HTML5 <canvas> element. The canvas element properties such as 'arc()', 'beginPath()', 'lineTo()' & 'fill()' are used in this example. Let us go through each step for better understanding. Define the canvas element in your document body as shown below. You can apply styles either by using "style" tag (inline CSS) or defined class in separate .css file. <canvas id="canvas" width="800" height="500"></canvas> This text is displayed if your browser does not support HTML5 Canvas. Define your values in the form of an array as shown below. To display different filled colors for ...
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Stored Procedures in MySQL

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Simple Line Graphs Using <canvas> element in HTML 5

After i worked with the Bar graph, i feel it is very easy to implement the line graphs using <canvas> element in HTML5. You can find many similarities in the javascript while working on this. New functions moveTo() , lineTo() , stroke() , lineWidth() has been used for line graphs. Define the canvas element in your document body as shown below with the ID attribute and mention the height & width attributes. You can apply styles either by using "style" tag (inline CSS) or defined class in separate .css file. <canvas id="myCanvas" width="800" height="500"></canvas> <script language="javascript" type="text/javascript"> var interval = 30; var linewidth = 1; var color = "blue"; var graphholder = "myCanvas"; var displayLabel = true; var labelfontstyle = "Arial"; var labelfontsize = "12px"; var labelfontclr = "#000000"; var ...
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