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Thread: Text Animation Help Requested

  1. #1
    Join Date
    Apr 2009
    Location
    Toronto
    Posts
    2

    Thumbs down Text Animation Help Requested

    I am helping a friend maintain his web site that was generated in Dreamweaver. I am supporting using HTML and Javascript and need to replace the animated text that was probably Flash generated because the background color is changing. I am a beginner Javascript coder so would like some help getting this done.

    The link below contains the animated text of "Charles T. Cozens" that I want to duplicate directly in Javascript.

    http://charlescozens.com/

    Thanks in advance for any assistance provided.

    Kindest regards... Ralph Gault

  2. #2
    Join Date
    Nov 2003
    Location
    Worthington, OH, USA
    Posts
    3,634
    This might get you started:
    HTML Code:
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
    <html>
    <head>
    	<title></title>
    	<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
    <script type="text/javascript">
    function animateStr(strIn, oDest) {
    	outPut=document.getElementById(oDest);
    	outPut.innerHTML = "";
    	var i = 0;
    	animChar = setInterval("nextChar()",500);
    	nextChar = function () {
    		outPut.innerHTML += strIn.charAt(i);
    		i++;
    		if (i > strIn.length) clearInterval(animChar);
    	}
    	
    }
    
    window.onload = function () {
    	animateStr("Hello from TheBear", "oPut");
    }
    </script>
    
    </head>
    
    <body>
    <div id="oPut"></div>
    </body>
    </html>
    54 68 65 42 65 61 72 4D 61 79

  3. #3
    Join Date
    Apr 2009
    Location
    Toronto
    Posts
    2

    Thumbs up Animated Text

    Thanks TheBearMay. I appreciate the start. I now need to loop through each character in the string starting to the right of the final character position and a little below. Each character starts out small and increases in size until it reaches the final position. This is done for each character in the string. I will attempt this on my own but hints are always appreciated.

    Thanks... ralphgault

  4. #4
    Join Date
    Nov 2003
    Location
    Worthington, OH, USA
    Posts
    3,634
    Try this modification:
    HTML Code:
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
    <html>
    <head>
    	<title>Test</title>
    	<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
    <script type="text/javascript">
    	if(window.attachEvent) 
    		window.attachEvent("onload", animateInit);
    	else
    		window.addEventListener("load", animateInit, false);
    
    function animateStr(strIn, oDest) {
    	outPut=document.getElementById(oDest);
    	outPut.innerHTML = "";
    	var i = 0;
    	animChar = setInterval("nextChar()",500);
    	nextChar = function () {
    		outPut.innerHTML += "<span id='id"+i+"' class='small'>"+strIn.charAt(i)+"</span>";
    		setTimeout("document.getElementById('id"+i+"').className='medium'",100);
    		setTimeout("document.getElementById('id"+i+"').className='large'",200);
    		i++;
    		if (i > strIn.length) clearInterval(animChar);
    	}
    	
    }
    
    function animateInit() {
    	animateStr("Hello from TheBear", "oPut");
    }
    
    </script>
    <style type="text/css">
    .small {
    	color:#ff0000;
    	font-size:xx-small;
    	font-family: cursive, fantasy, arial;
    }
    .medium {
    	color:#ff0000;
    	font-size:medium;
    	font-family: cursive, fantasy, arial;
    	font-weight:bold;
    }
    .large {
    	color:#ff0000;
    	font-size:xx-large;
    	font-family: cursive, fantasy, arial;
    	font-weight:bolder;
    }
    </style>
    </head>
    
    <body>
    <div id="oPut"></div>
    </body>
    </html>
    Last edited by TheBearMay; 04-29-2009 at 07:17 PM.
    54 68 65 42 65 61 72 4D 61 79

  5. #5
    Join Date
    Jun 2004
    Location
    Portsmouth UK
    Posts
    2,674
    Code:
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
    
    <html>
    
    <head>
      <title></title>
    <style type="text/css">
    <!--
    #tst {
      position:absolute;left:100px;top:100px;font-Size:20px;border:solid black 0px;
    }
    
    -->
    </style>
    
    <script type="text/javascript">
    /*<![CDATA[*/
    // Basic Element Animator (29-April-2009)
    // by Vic Phillips http://www.vicsjavascripts.org.uk
    
    // To progressively change the Left, Top, Width, Height or Opacity of an element over a specified period of time.
    // With the ability to scale the effect time on secified minimum/maximum values
    // and with three types of progression 'sin' and 'cos' and liner.
    
    // **** Application Notes
    
    // **** The HTML Code
    //
    // when moving an element the inline or class rule style position of the element should be assigned as
    // 'position:relative;' or 'position:absolute;'.
    //
    // The element would normally be assigned a unique ID name.
    //
    
    // **** Executing the Effect(Script)
    //
    // The effect is executed by an event call to function 'zxcBAnimator('width#',document.getElementById('tst'),10,800,5000,[10,800],'sin');'
    // where:
    // parameter 0 = the mode(see Note 2).                                                                     (string)
    // parameter 1 = the unique ID name or element object.                                                     (string or element object)
    // parameter 2 = the start position of the effect.                                                         (digits, for opacity minimum 0, maximum 100)
    // parameter 3 = the finish position of the effect.                                                        (digits, for opacity minimum 0, maximum 100)
    // parameter 4 = (optional) period of time between the start and finish of the effect in milliseconds.     (digits or defaults to 2000 milliSeconds)
    // parameter 5 = (optional) to scale the effect time on a secified minimum/maximum.                        (array, see Note 5)
    //                 field 0 the minimum. (digits)
    //                 field 1 the maximum. (digits)
    // parameter 6 = (optional) the type of progression, 'sin', 'cos' or 'liner'.                              (string, default = 'liner')
    //                'sin' progression starts fast and ends slow.
    //                'cos' progression starts slow and ends fast.
    //
    //  Note 1:  The default units(excepting opacity) are 'px'.
    //  Note 2:  Examples modes: 'left', 'top', 'width', 'height', 'opacity.
    //           For hyphenated modes, the first character after the hyphen must be upper case, all others lower case.
    //  Note 3:  To 'toggle' the effect include '#' in parameter 0.
    //           The first call will set the toggle parameters.
    //           Subsequent calls with '#' in parameter 0 and the same start and finish parameters will 'toggle' the effect.
    //  Note 4:  The function may be re-executed with a different set of parameters (start/finish time or period)
    //           whenever required, say from an onclick/mouseover/out event.
    //           The period parameter will be retained unless re-specified.
    //  Note 5: parameter 5 is of particular use when re-calling the effect
    //          in mid travel to retain an constant rate of progression.
    //  Note 6: parameters 2 and 3 must be different values to initilise or execute the script.
    //
    
    // **** Advanced Applications
    //
    //  Calling function 'zxcBAnimator' returns the instance of the script,
    //  this may be assigned to a variable and used to access the current value of the effect.
    //  alternativly the sript instance by elementobject[mode.replace(/\W/g,'')+'oop'];
    //  where mode is parameter 0 of the initial call.
    //  An array storing the current, start and finish values of the element effect may be accessed
    //  from the element effect.data as fields 0, 1 and 2 respectively
    //
    
    // **** General
    //
    // All variable, function etc. names are prefixed with 'zxc' to minimise conflicts with other JavaScripts.
    // These characters may be changed to characters of choice using global find and replace.
    //
    // The Functional Code(about 2.15K) is best as an External JavaScript.
    //
    // Tested with IE7 and Mozilla FireFox on a PC.
    //
    
    
    
    // **** Functional Code - NO NEED to Change
    
    
    function zxcBAnimator(mde,obj,srt,fin,ms,scale,curve){
     if (typeof(obj)=='string'){ obj=document.getElementById(obj); }
     if (!obj||(!srt&&!fin)) return;
     var oop=obj[mde.replace(/\W/g,'')+'oop'];
     if (oop){
      clearTimeout(oop.to);
      if (oop.srtfin[0]==srt&&oop.srtfin[1]==fin&&mde.match('#')) oop.update([oop.data[0],(oop.srtfin[0]==oop.data[2])?fin:srt],ms,scale,curve);
      else oop.update([srt,fin],ms,scale,curve);
     }
     else oop=obj[mde.replace(/\W/g,'')+'oop']=new zxcBAnimatorOOP(mde,obj,srt,fin,ms,scale,curve);
     return oop;
    }
    
    function zxcBAnimatorOOP(mde,obj,srt,fin,ms,scale,curve){
     this.srtfin=[srt,fin];
     this.to=null;
     this.obj=obj;
     this.mde=mde.replace(/\W/g,'');
     this.update([srt,fin],ms,scale,curve);
    }
    
    zxcBAnimatorOOP.prototype.update=function(srtfin,ms,scale,curve){
     this.time=ms||this.time||2000;
     this.data=[srtfin[0],srtfin[0],srtfin[1]];
     this.mS=this.time*(!scale?1:Math.abs((srtfin[1]-srtfin[0])/(scale[1]-scale[0])));
     this.ms=this.mS;
     this.curve=(typeof(curve)=='string')?curve.charAt(0).toLowerCase():(this.curve)?this.curve:'x';
     this.inc=Math.PI/(2*this.mS);
     this.srttime=new Date().getTime();
     if (this.data[1]!=this.data[2]) this.cng();
    }
    
    zxcBAnimatorOOP.prototype.cng=function(){
     this.ms=new Date().getTime()-this.srttime;
     this.data[0]=(this.curve=='s')?Math.floor((this.data[2]-this.data[1])*Math.sin(this.inc*this.ms)+this.data[1]):(this.curve=='c')?(this.data[2])-Math.floor((this.data[2]-this.data[1])*Math.cos(this.inc*this.ms)):(this.data[2]-this.data[1])/this.mS*this.ms+this.data[1];
     if (this.mde!='left'&&this.mde!='top'&&this.data[0]<0) this.data[0]=0;
     if (this.mde!='opacity') this.obj.style[this.mde]=this.data[0]+'px';
     else  zxcOpacity(this.obj,this.data[0]);
     if (this.ms<this.mS) this.to=setTimeout(function(oop){return function(){oop.cng();}}(this),10);
     else {
      this.data[0]=this.data[2];
      if (this.mde!='opacity') this.obj.style[this.mde]=this.data[0]+'px';
      else zxcOpacity(this.obj,this.data[0]);
     }
    }
    
    function zxcOpacity(obj,opc){
     if (opc<0||opc>100) return;
     obj.style.filter='alpha(opacity='+opc+')';
     obj.style.opacity=obj.style.MozOpacity=obj.style.KhtmlOpacity=opc/100-.001;
    }
    
    /*]]>*/
    </script>
    
    <script  type="text/javascript">
    <!--
    
    function zxcExpandText(id,fs1,fs2){
     var obj=document.getElementById(id);
     var txt=obj.firstChild.data.split('');
     obj.removeChild(obj.firstChild);
     this.fs=[fs1,fs2];
     this.ary=[];
     for (var z0=0;z0<txt.length;z0++){
      this.ary[z0]=zxcES('A',{position:'relative',top:'0px',fontSize:fs1+'px'},obj,txt[z0]);
     }
     zxcES(this.ary[0],{fontSize:fs2+'px'});
     var max=obj.offsetHeight;
     zxcES(this.ary[0],{fontSize:fs1+'px'});
     this.mve=(max-obj.offsetHeight)/2;
     this.top=obj.offsetTop;
     this.cnt=0;
     this.to=null;
     this.obj=obj;
     this.Rotate();
    }
    
    zxcExpandText.prototype.Rotate=function(){
     clearTimeout(this.to);
     var oop=this;
     var txt=this.ary[this.cnt];
     zxcBAnimator('font-Size',txt,this.fs[0],this.fs[1],500);
     zxcBAnimator('top',txt,0,this.mve/2,500);
     zxcBAnimator('top',this.obj,this.top,this.top-this.mve,500);
     setTimeout(function(){ oop.close(txt); },500);
     this.cnt++;
     if (this.cnt<this.ary.length) this.to=setTimeout(function(){ oop.Rotate(); },1000);
    }
    
    zxcExpandText.prototype.close=function(txt){
     zxcBAnimator('font-Size',txt,this.fs[1],this.fs[0],500)
     zxcBAnimator('top',txt,this.mve/2,0,500);
     zxcBAnimator('top',this.obj,this.top-this.mve,this.top,500);
    }
    
    function zxcES(ele,style,par,txt){
     if (typeof(ele)=='string') ele=document.createElement(ele);
     for (key in style) ele.style[key]=style[key];
     if (par) par.appendChild(ele);
     if (txt) ele.appendChild(document.createTextNode(txt));
     return ele;
    }
    
    
    var oop;
    
    //-->
    </script>
    </head>
    
    <body onload="oop= new zxcExpandText('tst',20,30)">
    <div id="tst" >Some Text</div>
    <input type="button" name="" value="Test" onclick="oop.cnt=0;oop.Rotate();" >
    </body>
    
    </html>
    Vic

    God loves you and will never love you less.

    http://www.vicsjavascripts.org/Home.htm
    If my post has been useful please donate to http://www.operationsmile.org.uk/

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