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  1. PO
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    <p>I have an implmentation idea, as I'm going to need to write this one also, unless you already have a solution so I'd like to have it :)</p> <p>anyway, do this:</p> <p>/** edit: removed my pseudo-code in favor for the real one ahead **/ </p> <p>anyway... I'll implement this and let you know. unless of course, during the next few hours some one will send his implementation :-) /** edit: thanks for those who did **/</p> <p>UPDATE: here it is, anyway (rotating one image over another:) it's working great, jsut do a little clean up if you're importing this. it's cross browser.</p> <p>html:</p> <pre><code>&lt;div id="centered" style=" /* margin-left:400px; computed in javacript*/ "&gt; &lt;img id="static" src="" style="position:absolute; z-index:-1"&gt; &lt;img id="rotating" src="" &gt; &lt;/div&gt; </code></pre> <p>include:</p> <pre><code>// jquery.min.js, jQueryRotate.js (discussed above) </code></pre> <p>javascript:</p> <pre><code>var alpha=0 var dragOrig = null var mouseInPic = new Point(0,0) var diff var imageNo = 0 function swapImage_or_something(i /* or get src from somewhere else*/) { $("#static").attr("src", arrCfgImages[i].src) $("#rotating").attr("src", arrCfgImages[i].src) $("#static").height(450); $("#rotating").height(450); $("#centered").css ({ "margin-left": ($(document).width()-$("#static").width())/2 }) $("#rotating").rotate(0) } function doEventBinding() { $(document).bind("mousedown", function (e) { dragOrig = new Point (mouseInPic.x, mouseInPic.y) e.preventDefault() return }); $(document).bind("mouseup", function (e) { if (dragOrig) { dragOrig = null alpha+=diff diff=0 } }); $(document).bind("mousemove", function (e) { var x = -1*(Math.round($("#rotating").width()/2+0.01) - (e.pageX - $("#rotating").offset().left - (isIE ? 2 : 0))) var y = Math.round($("#rotating").height()/2+0.01) - (e.pageY - $("#rotating").offset().top - (isIE ? 2 : 0)) mouseInPic = new Point(x,y) if (dragOrig) { var cp = new Point(0,0) var deg1 = getAngleBetweenPoints(dragOrig, cp) var deg2 = getAngleBetweenPoints(mouseInPic, cp) diff = (deg1-deg2) diff = diff&lt;0 ? diff+360 : diff&gt;360 ? diff-360 : diff diff = diff&gt;180 ? diff-360 : diff //my$("debug").innerHTML = diff $('#rotating').rotate(alpha+diff); e.preventDefault() } }); } </code></pre> <p>also: </p> <pre><code>var toRAD = 1/180*Math.PI; var toDEG = 180/Math.PI; function getAngle(dx,dy) { var ang if (dx!=0) { var rad = Math.atan(dy/dx) + (dx&lt;0?Math.PI:0) ang = rad*toDEG if (ang&lt;0) ang+=360; } else { ang = dy&gt;0 ? 90 : 270; } return ang; } function getAngleBetweenPoints (p1, p2) { var dx = p1.x-p2.x var dy = p1.y-p2.y return getAngle (dx, dy) } </code></pre>
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    1. POImage rotator using mouse drag event in Javascript
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    1. USalfred
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    1. COwell I used vml to perform the image rotation. It works with IE only. I didn't care about FF or other browsers.
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