Re: [Jmol-users] Re: [Jmol-developers] DOC - stereo

[Bob H. <ha...@st...>]

Do you suggest we add this to the documentation? Maybe at least a health warning?

Egon Willighagen wrote:

> On Friday 02 September 2005 06:39 am, Bob Hanson wrote:
> 
>>stereo is in, along with an attempt at a demo of such.
>>
>>See http://www.stolaf.edu/people/hansonr/jmol/docs/#.stereo
> 
> 
> Miguel ?!?!? When did you add this???
> 
> You keep amazing me... someone asks something... you think about it some 
> weeks, and then in the next release it's there...
> 
> Congratulations!
> 
> 
> About the documentation:
> 
> the recipe to look at these stereo images is like this:
> 
> IMPORTANT!!!! Looking at stereo images requires a lot of practice AND is known 
> to cause severe headaches to individuals (and not just because it's difficult 
> to learn :)
> 
> 1. look at the picture at some 10/15 cm from the screen, and you'll see two 
> protein with a slight angle difference
> 2. stay where you are, and close your eyes and let them relax to 10/15 second
> 3. open your eyes, and you'll notice that your eyes will try to focus again. 
> Suppress this reflex!
> 
> Ok, when you've got that under control, you'll see more than two proteins... 
> you might even see all four of them split up, but normally, the middle two 
> are partly overlapping...
> 
> When you reached this point, you're at the right track.
> 
> Note that the you'll have two protein of each angle view each! 
> 
> 4. Try to finetune your focus such that the two proteins in the middle overlap 
> exactly... This takes training again, and will give you the headaches.
> 
> Note that these two middle proteins have *different* angles. And this is what 
> one sees normally when looking at an object, because your eyes are apart. 
> Well, except for the cyclops.
> 
> Anyway:
> 
> 5. If you managed to get them overlapping, your brain will start to recognize 
> the input as 3D! Focus on that 3D image, and it will become clearer...
> 
> 6. When you have this 3D focus under control, you can start rotating the Jmol 
> protein.
> 
> It's fun!
> 
> Now, some comments on the demo:
> 
> - I saw grey on grey, which makes it more difficult to focus properly... 
> please use colors instead... e.g. the secondairy structure colors on either a 
> white or black background.
> - please widen up the Jmol window... I know square view is more efficient, but 
> we have two protein now, so basically need two squares, or something in 
> between...
> 
> Haven't got a set of 3D glasses, so only tried stereo...
> 
> Egon
> 
> 
> 
> 
> 
> 
> 
> 
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-- 
Robert M. Hanson, ha...@st..., 507-646-3107
Professor of Chemistry, St. Olaf College 1520 St. Olaf Ave., Northfield, MN 55057
mailto:ha...@st... http://www.stolaf.edu/people/hansonr