Editing Collada geometry mode (section)

=Example=
The following script creates two output files containing a single cylinder, one with the default collada_geometry_mode set to 0 (cgm0.dae) and the other set to 1 (cgm1.dae).  
<source lang="python">
reinitialize
pseudoatom ps1, pos=[-0.5,0,0]
pseudoatom ps2, pos=[0.5,0,0]
hide nonbonded
distance d, ps1, ps2
set dash_round_ends, 0
set dash_gap, 0
hide labels, d
save cgm0.dae
set collada_geometry_mode, 1
save cgm1.dae
</source>
Running <code>diff cgm0.dae cgm1.dae</code> on the two output files results in the following output, indicating that for collada_geometry_mode=1, <code>polylist</code> elements were used to create the ends of the cylinder, rather than <code>triangle</code> elements.
<source lang="diff">
70c70
<         <triangles count="8" material="geom0-material">
---
>         <polylist count="8" material="geom0-material">
73a74
>           <vcount>3 3 3 3 3 3 3 3 </vcount>
75,76c76,77
<         </triangles>
<         <triangles count="8" material="geom0-material">
---
>         </polylist>
>         <polylist count="8" material="geom0-material">
79a81
>           <vcount>3 3 3 3 3 3 3 3 </vcount>
81c83
<         </triangles>
---
>         </polylist>
</source>