https://wiki.pymol.org/index.php?action=history&feed=atom&title=Ray_TracingRay Tracing - Revision history2026-06-15T07:34:30ZRevision history for this page on the wikiMediaWiki 1.35.1https://wiki.pymol.org/index.php?title=Ray_Tracing&diff=9991&oldid=prevBell: 6 revisions2014-03-28T03:53:14Z<p>6 revisions</p>
<p><b>New page</b></p><div>==Adjusting ray trace-image size==<br />
<br />
Much, much more at [[Ray]].<br />
<br />
The pymol ray tracer can generate an image of any size.<br />
<source lang="python"><br />
ray height,width<br />
</source><br />
<br />
Example:<br />
<source lang="python"><br />
ray 3000,2400<br />
png filename.png<br />
</source><br />
<br />
==Ray tracing maps==<br />
For better quality maps with a white background.<br />
<source lang="python"><br />
set ray_trace_fog,0<br />
set ray_shadows,0<br />
set antialias,1<br />
ray 1600,1200<br />
png img.png<br />
</source><br />
(This will take quite a while...)<br />
<br />
==CGO label orientation==<br />
You could use the cmd.rotate and cmd.translate to position the labels, but it is likely to be somewhat painful. If I'm not mistaken, the rotation will always be about and axis through the origin and so you may need to translate the label into the correct position.<br />
<br />
Thus if you have your label in an object called 'text', you could do,<br />
<source lang="python"><br />
cmd.rotate(axis='x',angle=20.,object='text')<br />
</source><br />
<br />
and repeat this with different angles, until you get the orientation correct. Then use:<br />
<source lang="python"><br />
cmd.translate(vector='[1.,2.,3.]',object='text')<br />
</source><br />
(using the appropriate vector, of course!) to position the label.<br />
Not ideal, but if it is sufficiently important, it can be done!<br />
<br />
[[Category:Using_Pymol|Ray Tracing]]</div>Bellhttps://wiki.pymol.org/index.php?title=Ray_Tracing&diff=9989&oldid=prevSpencer: /* Adjusting ray trace-image size */2007-11-13T21:32:47Z<p><span dir="auto"><span class="autocomment">Adjusting ray trace-image size</span></span></p>
<p><b>New page</b></p><div>==Adjusting ray trace-image size==<br />
<br />
More at [[Ray]].<br />
<br />
The pymol ray tracer can generate an image of any size.<br />
<source lang="python"><br />
ray height,width<br />
</source><br />
<br />
Example:<br />
<source lang="python"><br />
ray 3000,2400<br />
png filename.png<br />
</source><br />
<br />
==Ray tracing maps==<br />
For better quality maps with a white background.<br />
<source lang="python"><br />
set ray_trace_fog,0<br />
set ray_shadows,0<br />
set antialias,1<br />
ray 1600,1200<br />
png img.png<br />
</source><br />
(This will take quite a while...)<br />
<br />
==CGO label orientation==<br />
You could use the cmd.rotate and cmd.translate to position the labels, but it is likely to be somewhat painful. If I'm not mistaken, the rotation will always be about and axis through the origin and so you may need to translate the label into the correct position.<br />
<br />
Thus if you have your label in an object called 'text', you could do,<br />
<source lang="python"><br />
cmd.rotate(axis='x',angle=20.,object='text')<br />
</source><br />
<br />
and repeat this with different angles, until you get the orientation correct. Then use:<br />
<source lang="python"><br />
cmd.translate(vector='[1.,2.,3.]',object='text')<br />
</source><br />
(using the appropriate vector, of course!) to position the label.<br />
Not ideal, but if it is sufficiently important, it can be done!<br />
<br />
[[Category:Using_Pymol|Ray Tracing]]</div>Spencer