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    <p>Have you actually tested SVG's native filters? This looks close enough:</p> <pre><code>&lt;svg width="612" height="792" viewBox="0 0 612 792" xmlns="http://www.w3.org/2000/svg"&gt; &lt;defs&gt; &lt;filter id="erode"&gt; &lt;feMorphology operator="erode" in="SourceGraphic" radius="12" /&gt; &lt;/filter&gt; &lt;filter id="dilate"&gt; &lt;feMorphology operator="dilate" in="SourceGraphic" radius="8" /&gt; &lt;/filter&gt; &lt;path id="original_path" d="M193.193,85c23.44,0.647,45.161,0.774,62,12c1.596,1.064,12,11.505,12,13 c0,2.941,8.191,5.669,3,12c-3.088,3.767-6.01-0.758-11-1c-19.56-0.948-33.241,12.296-33,34c0.163,14.698,8.114,24.492,4,41 c-1.408,5.649-6.571,15.857-10,21c-2.484,3.726-7.898,10.784-12,13c-4.115-11.677,2.686-27.29-6-35c-6.693-5.942-20.021-4.051-26,1 c-13.573,11.466-11.885,41.492-7,58c-5.8,1.772-18.938,7.685-23,12c-6.752-10.805-15.333-17.333-24-26c-3.307-3.307-9.371-12-15-12 c-16.772,0-13.963-15.741-13-28c1.283-16.324,1.727-28.24,4-42c1.276-7.72,8-16.411,8-23c0-7.416,15.945-29,23-29 c4.507,0,17.678-8.701,24-11C164.853,90.76,178.27,88.546,193.193,85"/&gt; &lt;/defs&gt; &lt;use xlink:href="#original_path" fill="#f00" filter="url(#dilate)"&gt;&lt;/use&gt; &lt;use xlink:href="#original_path" fill="blue"&gt;&lt;/use&gt; &lt;use xlink:href="#original_path" fill="#1CFF00" filter="url(#erode)"&gt;&lt;/use&gt; &lt;/svg&gt; </code></pre> <p>There is some clipping going on the <code>dilate</code> filter that can't seem to be resolved by increasing the filter region, but other than that it's pretty close to your illustrator rendering. Sure beats rendering server-side.</p> <p><a href="http://jsfiddle.net/5Qv5v/" rel="nofollow">http://jsfiddle.net/5Qv5v/</a></p>
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    1. PODilate and erode SVG shapes using Javascript
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    1. USDuopixel
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    1. COThank you for the effort! The filter is not very bad, but still not suitable in all situations. What if we add drag handles to polygon points, how filter based solution fits to it?
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    2. COIf that is your use case then you should state it in your question.
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    3. COAdded this. I nearly forgot that svg can be used also as a plain image without interactivity :) Thanks for reminder!
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