SVG element with background image and background color and drop shadow

Question

I'm using this answer to apply a drop shadow on a SVG element like a circle. I have a fill attribute on my element to apply a background color on it, and now I'd like to combine all that with a background image on the circle.

I've tried using a <pattern>but I can only have the background-image, or adding <feImage> to my filter drop shadow but the filter doesn't work anymore.

Basically, what should I add to this code knowing my image can be found in /public/images/... :

<filter id="dropshadow" width="130%" height="130%">
  <feGaussianBlur in="SourceAlpha" stdDeviation="3"/>
  <feOffset dx="0" dy="4" result="offsetblur"/>
    <feComponentTransfer>
    <feFuncA type="linear" slope="0.1"/>
  </feComponentTransfer>
  <feMerge> 
    <feMergeNode/>
    <feMergeNode in="SourceGraphic"/>
  </feMerge>
</filter>
<circle cx="50%" cy="50%" r="49%" filter="url(#dropshadow)" fill="#f8f8f8" stroke="#e7e7e7" stroke-width="1px"/>

Answer 1

Well I don't know how hard you tried on the feImage,. but this code works perfectly. You want to pull in the feImage, then clip it to the source with a feComposite "in". Then you can composite the dropshadow under that result.

<svg>
<defs>

<filter id="dropshadow" width="130%" height="130%">
<feGaussianBlur in="SourceAlpha" stdDeviation="3"/>
<feOffset dx="0" dy="4" result="offsetblur"/>
<feComponentTransfer in="offsetblur" result="dropshadow">
<feFuncA type="linear" slope="0.1"/>
</feComponentTransfer>

<feImage result="bgpic" xlink:href="http://www.sencha.com/img/sencha-large.png" /> 
<feComposite operator="atop" in="bgpic" in2="SourceGraphic" result="coikelwimg"/>

<feMerge> 
<feMergeNode in="coikelwimg"/>
<feMergeNode in="dropshadow"/>
</feMerge>
</filter>

</defs>
<circle cx="50%" cy="50%" r="49%" filter="url(#dropshadow)" fill="#f8f8f8" stroke="#e7e7e7" stroke-width="1px"/>

</svg>