color gradient on a line/path

Hi,

Is it possible to have the color of the line change from one end to
the other?

I tried using linearGradient, but the output wasn't as expected! I
want one end of the line to be green (the first 10%), the center to be
black and the end (the last 10%) to be blue.

The lines connect two arbitrary points on the circle (the svg is
generated using java).

Here's a sample output -
<?xml version="1.0" encoding="UTF-8"?>
<svg width="80" height="80">
  <defs>
    <linearGradient id="MyGradient" x1="0%" y1="0%" x2="100%"
y2="100%" gradientUnits="userSpaceOnUse">
      <stop offset="20%" stop-color="#0F0" />
      <stop offset="20%" stop-color="#000" />
      <stop offset="80%" stop-color="#000" />
      <stop offset="80%" stop-color="#00F" />
    </linearGradient>
  </defs>
  <g id="dtdcircle" style="fill:none; stroke:black;"
transform="translate(40, 40)">
    <circle fill="none" r="20" cx="0" id="boundary" cy="0"
            stroke="blue" stroke-width="1"/>
    <line y2="-20.0" style="fill:none; stroke:url(#MyGradient);"
            x1="-20.0" x2="0" y1="0"/>
    <line y2="20.0" style="fill:none; stroke:url(#MyGradient);"
            x1="-20.0" x2="0" y1="0"/>
    <line y2="0.0" style="fill:none; stroke:url(#MyGradient);"
            x1="-20.0" x2="20.0" y1="0"/>
  </g>
</svg>

cheers
Conrad


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