graph.xml

<?xml version="1.0" encoding="US-ASCII"?>
<?xml-stylesheet type="application/xslt+xml" href="./graph.xsl"?>
<?xml-stylesheet type="text/xsl" href="frameless.xsl"?>
<a:chart width="640" height="250" anim="20" style="color: white;" xmlns:a="http://ajax.org/2005/aml">
    <a:axis 
      mode       = "3D"
      x1         = "-2"
      x2         = "2"
      z1         = "-2"
      z2         = "2"
      y1         = "-1"
      y2         = "0.4"
      x3d        = "2" 
      y3d        = "0.5" 
      z3d        = "2"
      lockyzoom  = "1" 
      orbity     = "0.2"
      distance   = "3.3"
      orbitxanim = "0.01">
        <a:style type="text/chartcss">
            label{color:white;}
            plane{fill:null;}
            tick{stroke:white;}
            bar{
                fill   : null;
                stroke : null;
            }
            axis{
                stroke : white;
                side1  : 1;
                side2  : 1;
            }
            planexz{
                stroke      : white;
                fill        : gray;
                fillopacity : 0.2;
                oneside     : 1;
                side        : 0;
            }
            hbarxz{
                oneside : 1;
                side    : 0;
                stroke  : white;
                opacity : 0.5;
            }
            vbarxz{
                oneside : 1;
                side    : 0;
                stroke  : white;
                opacity : 0.5;
            }
        </a:style>
        <a:graph 
          mode      = "height" 
          dataslice = "1XZ"
          steps     = "16" 
          formula   = "(abs(4*sin((__e=sqrt(x*x+z*z))-2*n)/(__e+1))-1)
          *a+(1-a)*sin((__e=sqrt(x*x+z*z)*3)-2*n)/(__e+0.3)">
            <a:style type="text/chartcss">
                graph {
                  fill          : #f1d309;
                  single        : 1;
                  fillopacity   : 0.3;
                  strokeopacity : 0.5;
                  stroke        : #f1d309;
                }
            </a:style>
        </a:graph>
    </a:axis>
</a:chart>