Circular Moving Text Using JQuery

Sapna
May 15, 2012

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Introduction

In this article we are going to create a stunning circular text motion effect with jQuery. We will be using the jQuery to animate a circular text movement on our web page. The idea is to have a rounded text with the movement of the cursor in our web page.

Description

This article shows how to make a textual message circle around your mouse cursor that follows the mouse cursor around using this DHTML script.

Step 1 : First we have to create a web Application.

Go to Visual Studio 2010.
New--> And select the web Application.
Give it's a name whatever you want.
Click OK.

Step 2 : Secondly you have to add a new page to the website.

Go to the Solution Explorer.
Right-click on the Project name.
Select add new item.
Add new web page and give it a name.
Click OK.

Step 4 : In this step we will see how to add style sheet code. Whenever we write the style sheet code you have to be careful that it is written inside the <style></style> code and you have to place it inside the head section.

Style Code

Step 5 : In this step we have to write the script reference to the aspx page; let us see from where you have to write the script code.

Step 6 : Let us see the script code which you have to add inside the<script></script> and will be placed either in the head section or body section as you prefer.

Step 7 : In this step we have to write the jQuery code which is given below.

Step 8 : In this step we will see the complete code of the Default2.aspx page which is given below.

Code

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title> Simple jQuery text Animation</title>
<style type="text/css">
        #outerCircleText
        {
            font-style: italic;
            font-weight: bold;
            font-family: 'comic sans ms' , verdana, arial;
            color: #68228B;
            position: absolute;
            top: 0;
            left: 0;
            z-index: 3000;
            cursor: default;
        }
        #outerCircleText div
        {
            position: relative;
        }
        #outerCircleText div div
        {
            position: absolute;
            top: 0;
            left: 0;
            text-align: center;
        }
</style>
<script type="text/javascript" src="Scripts/jquery-1.4.1.min.js"></script>
<script type="text/javascript">
        (function () {
            var msg = "Wecome to Csharpcorner.com!";
            var size = 24;
            var circleY = 0.75; var circleX = 2;
            var letter_spacing = 5;
            var diameter = 10;
            var rotation = 0.4;
            var speed = 0.3;
            if (!window.addEventListener && !window.attachEvent || !document.createElement) return;
            msg = msg.split('');
            var n = msg.length - 1, a = Math.round(size * diameter * 0.208333), currStep = 20,
ymouse = a * circleY + 20, xmouse = a * circleX + 20, y = [], x = [], Y = [], X = [],
o = document.createElement('div'), oi = document.createElement('div'),
b = document.compatMode && document.compatMode != "BackCompat" ? document.documentElement : document.body,
mouse = function (e) {
    e = e || window.event;
    ymouse = !isNaN(e.pageY) ? e.pageY : e.clientY; // y-position
    xmouse = !isNaN(e.pageX) ? e.pageX : e.clientX; // x-position
},
makecircle = function () { // rotation/positioning
    if (init.nopy) {
        o.style.top = (b || document.body).scrollTop + 'px';
        o.style.left = (b || document.body).scrollLeft + 'px';
   };
    currStep -= rotation;
    for (var d, i = n; i > -1; --i) { // makes the circle
        d = document.getElementById('iemsg' + i).style;
        d.top = Math.round(y[i] + a * Math.sin((currStep + i) / letter_spacing) * circleY - 15) + 'px';
      d.left = Math.round(x[i] + a * Math.cos((currStep + i) / letter_spacing) * circleX) + 'px';
    };
},
drag = function () { // makes the resistance
    y[0] = Y[0] += (ymouse - Y[0]) * speed;
    x[0] = X[0] += (xmouse - 20 - X[0]) * speed;
    for (var i = n; i > 0; --i) {
        y[i] = Y[i] += (y[i - 1] - Y[i]) * speed;
        x[i] = X[i] += (x[i - 1] - X[i]) * speed;
    };
    makecircle();
},
init = function () {
    if (!isNaN(window.pageYOffset)) {
        ymouse += window.pageYOffset;
        xmouse += window.pageXOffset;
    } else init.nopy = true;
    for (var d, i = n; i > -1; --i) {
        d = document.createElement('div'); d.id = 'iemsg' + i;
        d.style.height = d.style.width = a + 'px';
        d.appendChild(document.createTextNode(msg[i]));
        oi.appendChild(d); y[i] = x[i] = Y[i] = X[i] = 0;
    };
    o.appendChild(oi); document.body.appendChild(o);
    setInterval(drag, 25);
},
ascroll = function () {
    ymouse += window.pageYOffset;
    xmouse += window.pageXOffset;
    window.removeEventListener('scroll', ascroll, false);
};
             o.id = 'outerCircleText'; o.style.fontSize = size + 'px';
            if (window.addEventListener) {
                window.addEventListener('load', init, false);
                document.addEventListener('mouseover', mouse, false);
                document.addEventListener('mousemove', mouse, false);
                if (/Apple/.test(navigator.vendor))
                    window.addEventListener('scroll', ascroll, false);
           }
            else if (window.attachEvent) {
                window.attachEvent('onload', init);
                document.attachEvent('onmousemove', mouse);
            };
        })();
</script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    </div>
    </form>
</body>
</html>