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<A NAME=contour>

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<B>CONTOUR</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>switch</B><P>
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<A HREF=r37_0551.html>plot</A>option: 
If <em>contour</em> is member of the options for a 3d 
<A HREF=r37_0551.html>plot</A> 
contour lines are projected to the z=0 plane 
(see 
<A HREF=r37_0549.html>axes names</A>). The absence of contour lines 
can be selected explicitly by including <em>nocontour</em>. Default 
is <em>nocontour</em>. 
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