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<TITLE> Description of Objects in VPython</TITLE>
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<H1 CLASS="Heading-1"> <font color="#0000A0">Rotating an Object</font></H1>
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<P CLASS="Normal"> The cylinder, arrow, cone, pyramid, sphere, ring, box, and
ellipsoid objects (but not curve or convex) can be rotated about a specified
origin:</P>
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<H2 CLASS="program0"> object.rotate(angle=pi/4., axis=axis, origin=pos)</H2>
<P CLASS="Normal"> The rotate function applies a transformation to the specified
object (sphere, box, etc.). The transformation is a rotation of <span class="attribute">angle</span>
radians, counterclockwise around the line defined by <span class="attribute">origin</span>
and <span class="attribute">origin+axis</span>. By default, rotations are
around the object's own <span class="attribute">pos</span> and <span class="attribute">axis</span>.</P>
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