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November 14, 2012 17:52
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A CodePen by teheran. jQuery Draggable with out jQuery UI - It doesn't have all the fancy callbacks and options, but hey, it makes things draggable. From: http://reader-download.googlecode.com/svn/trunk/jquery-draggable/index.html
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<div> | |
<svg id="svgRoot" | |
xmlns="http://www.w3.org/2000/svg" version="1.1" | |
width="100%" height="100%" | |
viewBox="0 0 300 300"> | |
<symbol id='symbol'> | |
<image width="100" height="100" | |
xlink:href="http://upload.wikimedia.org/wikipedia/commons/c/cb/Footnote.svg"/> | |
</symbol> | |
<g id="svgElement"> | |
<use transform='translate(000,000)' xlink:href="#symbol"/> | |
<use transform='translate(100,000)' xlink:href="#symbol"/> | |
<use transform='translate(200,000)' xlink:href="#symbol"/> | |
<use transform='translate(000,100)' xlink:href="#symbol"/> | |
<use transform='translate(100,100)' xlink:href="#symbol"/> | |
<use transform='translate(200,100)' xlink:href="#symbol"/> | |
<use transform='translate(000,200)' xlink:href="#symbol"/> | |
<use transform='translate(100,200)' xlink:href="#symbol"/> | |
<use transform='translate(200,200)' xlink:href="#symbol"/> | |
</g> | |
</svg> | |
</div> |
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var svgRoot = document.getElementById('svgRoot'); | |
function zoomSvgElement(element, center, scale) { | |
var matrix = element.getTransformToElement(svgRoot) | |
.translate(center.x, center.y) | |
.scale(scale) | |
.translate(-center.x, -center.y); | |
element.setAttribute("transform", "matrix(" + matrix.a + "," + matrix.b + "," + matrix.c + "," + matrix.d + "," + matrix.e + "," + matrix.f + ")"); | |
} | |
function createSVGMatrix() { | |
return svgRoot.createSVGMatrix() | |
} | |
function createSVGPoint(clientX, clientY) { | |
var result = svgRoot.createSVGPoint(); | |
result.x = clientX; | |
result.y = clientY; | |
return result; | |
} | |
function convertClientXY(element, clientX, clientY) { | |
return createSVGPoint(clientX, clientY) | |
.matrixTransform(element.getScreenCTM().inverse()); | |
} | |
var commonRatio = 1.1; // знаменатель zoom-прогрессии | |
function translateMouseWheelClicksToScale(clicks) { | |
return Math.pow(commonRatio, clicks); | |
} | |
var accumulator = 0; // накопитель щелчков колесика мышки | |
$('#svgElement').mousewheel(function(event, delta, deltaX, deltaY) { | |
zoomSvgElement( | |
this, | |
convertClientXY(this, event.pageX, event.pageY), | |
translateMouseWheelClicksToScale(/*accumulator += */Math.round(delta))); | |
if (event.preventDefault) { | |
event.preventDefault(); | |
} else { | |
return false; | |
} | |
}); | |
$('div').mousemove(function(e) { | |
$('#statusDiv').html( e.pageX +', '+ e.pageY ); | |
}); |
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svg { | |
cursor:"" all-scroll; | |
} | |
svg { | |
display: block; | |
margin: auto; | |
background: gray; | |
cursor: all-scroll; | |
} | |
div { | |
border:1px solid red; | |
margin: 3%; | |
padding: 3% | |
} |
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