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copied!<p>I was answering your previous question. You should draw image on canvas using <code>drawImage</code> and then addEventListener of drag event on canvas.</p> <p><a href="http://jsfiddle.net/Aab7j/2/" rel="nofollow">jsfiddle</a></p> <pre><code>var drag, canvas, ctx; var posX = 0, posY = 0; var lastX, lastY; $(document).ready(function(){ canvas=document.getElementById("canvas"); ctx=canvas.getContext("2d"); var image=document.createElement("img"); image.onload=function(){ canvas.width = 800; canvas.height = 400; ctx.drawImage(image,posX,posY); init(); } image.src="http://peach.blender.org/wp-content/uploads/poster_rodents_big.jpg"; function init(){ canvas.addEventListener('mousedown', function(){ drag = true; lastX=null; lastY=null; }); document.addEventListener('mouseup', function(){ drag = false; }); document.addEventListener('mousemove', function(evt) { if(drag){ var mousePos = getMousePos(canvas, evt); var x = mousePos.x; var y = mousePos.y; ctx.clearRect(0,0,canvas.width,canvas.height); if(lastX && lastY){ posX += x-lastX; posY += y-lastY; if(posX>0) posX=0; if(posY>0) posY=0; if(posX<-image.width+canvas.width) posX = -image.width+canvas.width; if(posY<-image.height+canvas.height) posY = -image.height+canvas.height; ctx.drawImage(image,posX,posY); } lastX=x; lastY=y; } }, false); } function getMousePos(canvas, evt) { var rect = canvas.getBoundingClientRect(); return { x: evt.clientX - rect.left, y: evt.clientY - rect.top }; } }); </code></pre>

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