SVG feMerge and feMergeNode Elements
 Complete SVG Reference
Definition and Usage
The SVG feMerge element is used to create image layers on top of each other.
Each feMerge element can have any number of feMergeNode sub-elements.
Example 1
Copy the following code into Notepad and save
the file as "femerge_1.svg". Place the file in your Web directory:
<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="100%" height="100%" version="1.1"
xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="test" filterUnits="objectBoundingBox"
x="0" y="0" width="1.5" height="4">
<feOffset result="Off1" dx="15" dy="20"/>
<feFlood style="flood-color:#ff0000;flood-opacity:0.8"/>
<feComposite in2="Off1" operator="in" result="C1"/>
<feOffset in="SourceGraphic" result="Off2" dx="30" dy="40"/>
<feFlood style="flood-color:#ff0000;flood-opacity:0.4"/>
<feComposite in2="Off2" operator="in" result="C2"/>
<feMerge>
<feMergeNode in="C2"/>
<feMergeNode in="C1"/>
<feMergeNode in="SourceGraphic"/>
</feMerge>
</filter>
</defs>
<text x="30" y="100"
style="font:36px verdana bold;fill:blue;filter:url(#test)">
This is some text!</text>
</svg>
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View example
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