Create Interactive Chart Using a HTML 5

Introduction

This is a simple application for beginners that shows how to create interactive charts using HTML 5 and CSS tools. We know that HTML 5 is the advanced version of HTML. Basically HTML 5 can be used to develop 3D applications. This article is intended to help with the use of HTML5 tools to develop interactive chart applications. CSS is the acronym for Cascading Style Sheet that is used for design. CSS defines how HTML elements are to be displayed. Canvas is an important tag of a HTML 5 that is used to show the image and text in a HTML 5 application. I hope this article helps to create interactive chart applications using HTML 5 and CSS tools.

Step 1 : First open a HTML editor such as Notepad.

• Open start->Notepad.
• The name of editor is "chart".

Step 2 : Create a Folder on a desktop.

• Right-click on desktop->new->Folder.
• Name of folder is "demo".

Step 3 : Open Visual Studio.

• Go to file -> New->Projects.
• Crete an ASP. NET Web Application.
• Name of "interactive.aspx".

Step 4 : Add a HTML file to your web application.

• Right-click on Solution Explorer.
• Add->add new item->HTML form.
• The Name of the HTML form is "slide.html".

Step 5 : Now in this step we add a css file that sets all properties of an interactive chart body . Through css we set color, size and font properties of a interactive chart body.

Code

body
{
    background: #fff;
    color:Green;
    font: 100.1% Verdana;
}
#holder
{
    height:500px;
    left: 70%;
    margin: 0 0 0 -420px;
    position:relative;
    top: 1;
    width: 540px;
}
#copy
{
    bottom: 0;
    font-size: .9em;
    position:relative;
    right: 3em;
    text-align:right;
}

Step 6 : Add a JavaScript file to the application. The P1.js file provides the functionality of moving interactive chart. Set a R1.css that sets color, size and font properties of an interactive chart body.

<link rel="stylesheet" href="R1.css" media="screen"/>
<script type="text/javascript" src="Scripts/P1.js"></script>

Step 7 :  Now in this step we define a draw path function. In the function we define a path alignment of an interactive chart application.

Code

function drawPath()
{
     var p = [];
     for (var j = 1, jj = X.length; j < jj; j++)
{
     p.push(X[j], Y[j]);
          }
     p = ["M", X[0], Y[0], "R"].concat(p);
     var subaddon = "L" + (ptx - 10) + "," + (ctx - 10) + ",50," + (ctx - 10) + "z";
     path.attr({ path: p });
     sub.attr({ path: p + subaddon });
   }

Step 8 : In this step we define a function to set a color, blankets and buttons of an interactive chart application.

Code

var p = [["M"].concat(translate(0, values[0]))],
    color = "hsb(100°, 2, 2)",
    X = [],
    Y = [],
    blankets = r.set(),
    buttons = r.set(),
    w = (ptx - 60) / values.length,
    isDrag = -1,
    start = null,
    sub = r.path().attr({ stroke: "none", fill: [90, color, color].join("-"), opacity: 0 }),
    path = r.path().attr({ stroke: color, "stroke-width": 2 })

Step 9 : Press Ctrl+ F5 to run the code; the output is shown below.

 

 

Resources

Here is some useful resources

• Working With Pie Chart in HTML5
• QC DATA PULLER using C#
• Create an Image Gallery Using CSS3 and HTML 5
• Creating Exploded Pie Chart Having Click Through Functionality in C#