<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
 "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<!-- Generated by graphviz version 2.38.0 (20140413.2041)
 -->
<!-- Title: G Pages: 1 -->
<svg width="880pt" height="259pt"
 viewBox="0.00 0.00 880.00 259.49" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 255.487)">
<title>G</title>
<polygon fill="blue" stroke="none" points="-4,4 -4,-255.487 876,-255.487 876,4 -4,4"/>
<g id="clust1" class="cluster"><title>cluster_1</title>
<polygon fill="blue" stroke="black" points="49,-134.293 49,-243.487 823,-243.487 823,-134.293 49,-134.293"/>
<text text-anchor="middle" x="436" y="-228.287" font-family="Times,serif" font-size="14.00" fill="white">Linear Angle Variations (white to black gradient)</text>
</g>
<g id="clust2" class="cluster"><title>cluster_2</title>
<polygon fill="blue" stroke="black" points="8,-8 8,-126.293 864,-126.293 864,-8 8,-8"/>
<text text-anchor="middle" x="436" y="-111.093" font-family="Times,serif" font-size="14.00" fill="white">Radial Angle Variations (white to black gradient)</text>
</g>
<!-- n9 -->
<g id="node1" class="node"><title>n9</title>
<defs>
<linearGradient id="l_0" gradientUnits="userSpaceOnUse" x1="744.806" y1="-177.39" x2="815.194" y2="-177.39" >
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</linearGradient>
</defs>
<ellipse fill="url(#l_0)" stroke="black" cx="780" cy="-177.39" rx="35.194" ry="35.194"/>
<text text-anchor="middle" x="780" y="-173.69" font-family="Times,serif" font-size="14.00">n8:360</text>
</g>
<!-- n8 -->
<g id="node2" class="node"><title>n8</title>
<defs>
<linearGradient id="l_1" gradientUnits="userSpaceOnUse" x1="667.114" y1="-202.276" x2="716.886" y2="-152.504" >
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</linearGradient>
</defs>
<ellipse fill="url(#l_1)" stroke="black" cx="692" cy="-177.39" rx="35.194" ry="35.194"/>
<text text-anchor="middle" x="692" y="-173.69" font-family="Times,serif" font-size="14.00">n8:315</text>
</g>
<!-- n7 -->
<g id="node3" class="node"><title>n7</title>
<defs>
<linearGradient id="l_2" gradientUnits="userSpaceOnUse" x1="604" y1="-212.584" x2="604" y2="-142.196" >
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</linearGradient>
</defs>
<ellipse fill="url(#l_2)" stroke="black" cx="604" cy="-177.39" rx="35.194" ry="35.194"/>
<text text-anchor="middle" x="604" y="-173.69" font-family="Times,serif" font-size="14.00">n7:270</text>
</g>
<!-- n6 -->
<g id="node4" class="node"><title>n6</title>
<defs>
<linearGradient id="l_3" gradientUnits="userSpaceOnUse" x1="540.886" y1="-202.276" x2="491.114" y2="-152.504" >
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</linearGradient>
</defs>
<ellipse fill="url(#l_3)" stroke="black" cx="516" cy="-177.39" rx="35.194" ry="35.194"/>
<text text-anchor="middle" x="516" y="-173.69" font-family="Times,serif" font-size="14.00">n6:225</text>
</g>
<!-- n5 -->
<g id="node5" class="node"><title>n5</title>
<defs>
<linearGradient id="l_4" gradientUnits="userSpaceOnUse" x1="463.194" y1="-177.39" x2="392.806" y2="-177.39" >
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</linearGradient>
</defs>
<ellipse fill="url(#l_4)" stroke="black" cx="428" cy="-177.39" rx="35.194" ry="35.194"/>
<text text-anchor="middle" x="428" y="-173.69" font-family="Times,serif" font-size="14.00">n5:180</text>
</g>
<!-- n14 -->
<g id="node14" class="node"><title>n14</title>
<defs>
<radialGradient id="r_0" cx="50%" cy="50%" r="75%" fx="0%" fy="50%">
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</radialGradient>
</defs>
<ellipse fill="url(#r_0)" stroke="black" cx="428" cy="-55.6465" rx="39.7935" ry="39.7935"/>
<text text-anchor="middle" x="428" y="-51.9465" font-family="Times,serif" font-size="14.00">n14:180</text>
</g>
<!-- n5&#45;&gt;n14 -->
<g id="edge1" class="edge"><title>n5&#45;&gt;n14</title>
<path fill="none" stroke="black" d="M428,-142.076C428,-130.738 428,-117.894 428,-105.674"/>
<polygon fill="black" stroke="black" points="431.5,-105.603 428,-95.6026 424.5,-105.603 431.5,-105.603"/>
</g>
<!-- n4 -->
<g id="node6" class="node"><title>n4</title>
<defs>
<linearGradient id="l_5" gradientUnits="userSpaceOnUse" x1="364.886" y1="-152.504" x2="315.114" y2="-202.276" >
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</linearGradient>
</defs>
<ellipse fill="url(#l_5)" stroke="black" cx="340" cy="-177.39" rx="35.194" ry="35.194"/>
<text text-anchor="middle" x="340" y="-173.69" font-family="Times,serif" font-size="14.00">n4:135</text>
</g>
<!-- n3 -->
<g id="node7" class="node"><title>n3</title>
<defs>
<linearGradient id="l_6" gradientUnits="userSpaceOnUse" x1="254" y1="-144.095" x2="254" y2="-210.685" >
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</linearGradient>
</defs>
<ellipse fill="url(#l_6)" stroke="black" cx="254" cy="-177.39" rx="33.2948" ry="33.2948"/>
<text text-anchor="middle" x="254" y="-173.69" font-family="Times,serif" font-size="14.00">n3:90 </text>
</g>
<!-- n2 -->
<g id="node8" class="node"><title>n2</title>
<defs>
<linearGradient id="l_7" gradientUnits="userSpaceOnUse" x1="146.457" y1="-153.847" x2="193.543" y2="-200.933" >
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</linearGradient>
</defs>
<ellipse fill="url(#l_7)" stroke="black" cx="170" cy="-177.39" rx="33.2948" ry="33.2948"/>
<text text-anchor="middle" x="170" y="-173.69" font-family="Times,serif" font-size="14.00">n2:45 </text>
</g>
<!-- n1 -->
<g id="node9" class="node"><title>n1</title>
<defs>
<linearGradient id="l_8" gradientUnits="userSpaceOnUse" x1="56.6043" y1="-177.39" x2="119.396" y2="-177.39" >
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</linearGradient>
</defs>
<ellipse fill="url(#l_8)" stroke="black" cx="88" cy="-177.39" rx="31.3957" ry="31.3957"/>
<text text-anchor="middle" x="88" y="-173.69" font-family="Times,serif" font-size="14.00">n1:0 &#160;</text>
</g>
<!-- n18 -->
<g id="node10" class="node"><title>n18</title>
<defs>
<radialGradient id="r_1" cx="50%" cy="50%" r="75%" fx="99%" fy="49%">
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</radialGradient>
</defs>
<ellipse fill="url(#r_1)" stroke="black" cx="816" cy="-55.6465" rx="39.7935" ry="39.7935"/>
<text text-anchor="middle" x="816" y="-51.9465" font-family="Times,serif" font-size="14.00">n17:360</text>
</g>
<!-- n17 -->
<g id="node11" class="node"><title>n17</title>
<defs>
<radialGradient id="r_2" cx="50%" cy="50%" r="75%" fx="85%" fy="85%">
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</radialGradient>
</defs>
<ellipse fill="url(#r_2)" stroke="black" cx="719" cy="-55.6465" rx="39.7935" ry="39.7935"/>
<text text-anchor="middle" x="719" y="-51.9465" font-family="Times,serif" font-size="14.00">n17:315</text>
</g>
<!-- n16 -->
<g id="node12" class="node"><title>n16</title>
<defs>
<radialGradient id="r_3" cx="50%" cy="50%" r="75%" fx="50%" fy="100%">
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</radialGradient>
</defs>
<ellipse fill="url(#r_3)" stroke="black" cx="622" cy="-55.6465" rx="39.7935" ry="39.7935"/>
<text text-anchor="middle" x="622" y="-51.9465" font-family="Times,serif" font-size="14.00">n16:270</text>
</g>
<!-- n15 -->
<g id="node13" class="node"><title>n15</title>
<defs>
<radialGradient id="r_4" cx="50%" cy="50%" r="75%" fx="14%" fy="85%">
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</radialGradient>
</defs>
<ellipse fill="url(#r_4)" stroke="black" cx="525" cy="-55.6465" rx="39.7935" ry="39.7935"/>
<text text-anchor="middle" x="525" y="-51.9465" font-family="Times,serif" font-size="14.00">n15:225</text>
</g>
<!-- n13 -->
<g id="node15" class="node"><title>n13</title>
<defs>
<radialGradient id="r_5" cx="50%" cy="50%" r="75%" fx="14%" fy="14%">
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</radialGradient>
</defs>
<ellipse fill="url(#r_5)" stroke="black" cx="331" cy="-55.6465" rx="39.7935" ry="39.7935"/>
<text text-anchor="middle" x="331" y="-51.9465" font-family="Times,serif" font-size="14.00">n13:135</text>
</g>
<!-- n12 -->
<g id="node16" class="node"><title>n12</title>
<defs>
<radialGradient id="r_6" cx="50%" cy="50%" r="75%" fx="49%" fy="0%">
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</radialGradient>
</defs>
<ellipse fill="url(#r_6)" stroke="black" cx="236" cy="-55.6465" rx="37.8943" ry="37.8943"/>
<text text-anchor="middle" x="236" y="-51.9465" font-family="Times,serif" font-size="14.00">n12:90 </text>
</g>
<!-- n11 -->
<g id="node17" class="node"><title>n11</title>
<defs>
<radialGradient id="r_7" cx="50%" cy="50%" r="75%" fx="85%" fy="14%">
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</radialGradient>
</defs>
<ellipse fill="url(#r_7)" stroke="black" cx="143" cy="-55.6465" rx="37.8943" ry="37.8943"/>
<text text-anchor="middle" x="143" y="-51.9465" font-family="Times,serif" font-size="14.00">n11:45 </text>
</g>
<!-- n10 -->
<g id="node18" class="node"><title>n10</title>
<defs>
<radialGradient id="r_8" cx="50%" cy="50%" r="75%" fx="50%" fy="50%">
<stop offset="0" style="stop-color:white;stop-opacity:1.;"/>
<stop offset="1" style="stop-color:black;stop-opacity:1.;"/>
</radialGradient>
</defs>
<ellipse fill="url(#r_8)" stroke="black" cx="52" cy="-55.6465" rx="35.9954" ry="35.9954"/>
<text text-anchor="middle" x="52" y="-51.9465" font-family="Times,serif" font-size="14.00">n10:0 &#160;</text>
</g>
</g>
</svg>