Figure: Visualization of the difference between a perfect sphere (radius 8mm) and a sphere with centralized distortion of 2.2 mm diameter and 0.02 mm height using <a href="#p1">1 spline patch</a>, <a href="#p2">2x2 patches</a>, <a href="#p4">4x4 patches</a>, and <a href="#p8">8x8 patches</a>.
<p><a name="p1">
<h3>1x1 patch</h3>
<img src="blob1.gif">
<p><a name="p2">
<h3>2x2 patch</h3>
<img src="blob2.gif">
<p><a name="p4">
<h3>4x4 patch</h3>
<img src="blob4.gif">
<p><a name="p8">
<h3>8x8 patch</h3>
<img src="blob8.gif">
<p><a href="section3.html">back to Section 3</a>