Circular Moving Text Using JQuery

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

<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>

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.

<script type="text/javascript" src="Scripts/jquery-1.4.1.min.js"></script>

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

<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>