XML/SVG/polygon

Rendering Triangular Wedges with 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%">
  <g transform="translate(100,100)">
    <!-- render triangle -->
    <polygon points="200,0 300,150 100,150"
      style="fill:red;stroke:blue;" />
    <!-- render parallelogram (clockwise) -->
    <polygon points="200,0 100,150 50,120 150,-30"
      style="fill:black;stroke:blue;" />
  </g>
</svg>

Using polygon to Render Rectangles

<?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%">
  <!-- draw rectangle -->
  <g transform="translate(50,50)">
    <polygon points="0,0 150,0 150,50 0,50" style="fill:red;" />
  </g>
</svg>