XML/SVG/linearGradient

Creating Cones with Gradient Shading

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20001102//EN"
 "http://www.w3.org/TR/2000/CR-SVG-20001102/DTD/svg- 20001102.dtd">
<svg width="100%" height="100%">
  <defs>
    <linearGradient id="gradientDefinition1" x1="0" y1="0" x2="200"
      y2="0" gradientUnits="userSpaceOnUse">
      <stop offset="0%" style="stop-color:#FF0000" />
      <stop offset="100%" style="stop-color:#000000" />
    </linearGradient>
  </defs>
  <g transform="translate(50,50)">
    <polygon points="0,50 200,50 100,300"
      style="fill:url(#gradientDefinition1);" />
    <ellipse cx="100" cy="50" rx="100" ry="20" style="fill:blue;" />
  </g>
</svg>

Parallelograms as SVG Polygons

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20001102//EN"
 "http://www.w3.org/TR/2000/CR-SVG-20001102/DTD/svg-20001102.dtd">
<svg width="100%" height="100%">
   <defs>
      <linearGradient id="linearGradient"
         gradientUnits="userSpaceOnUse">
         <stop stop-color="red" offset="0%"/>
         <stop stop-color="black"  offset="100%"/>
      </linearGradient>
   </defs>
   <g transform="translate(50,20)">
     <polygon
        stroke="yellow"
        stroke-width="4"
        stroke-dasharray="8 8 8 8"
        points="50,0 450,0 400,150 0,150"
        fill="url(#linearGradient)"/>
   </g>
</svg>