From: lonely l. <gud...@ya...> - 2002-09-26 22:08:28
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Hello there, I plan to purchase a new graphics card and a pair of stereo glasses to be used with PyMOL. My current system: Dual Althlon 1900XP / 1GB DDR memory / Geforce4 video card. Could anyone please give me some suggestions/recommendations on the following questions? Because of the mono-performance issue, I decide to change my graphics card to ATI Fire GL2 (or 3 / 4). The current price I found: GL2: $800 GL3: $1300 GL4: $1700 My first question is: how will the different cards affect the stereo-viewing performance (at 1280x1024)? Is it necessary to go for a high-end card (and pay extra cash)? For the stereo glasses, I called Stereo Graphics and their CrystalEyes3 + Emitter boundle costs about $900. I also called NuVision and their 60GX + Emitter cost about $300. My second question is: what's the difference between these two? Can the difference justify the extra $600? Thanks a lot! Jiye Shi __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com |
From: Yu S. <sh...@rp...> - 2002-09-26 23:44:45
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Hello everyone, Does anyone know how to use the conformation editing of PyMol, or has it been implemented? It's unclear from the menual, which just said that "Sorry, no documentation yet -- these features won't be too useful until PyMOL is coupled up with an energy minimiation engine." Any infomation will be highly appreciated. Best wishes, Yu Shao R.P.I. |
From: Warren L. D. <wa...@su...> - 2002-09-27 04:18:41
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Yu, The conformational editing features are not fully designed nor well tested, and the documentation is still incomplete. Until the PyMOL user interface is a bit more stabilized, documentation seems premature. I am resistant to the idea of committing to a user interface which hasn't really been evaluated or optimized for usability. However it is quite frustrating for all of us knowing that there is considerable power under the hood which can't yet be accessed by users : ( . However, you should at least be able to do a few basic things, such as manually adjusting bond torsions: 1. put the mouse into editing mode (Mouse menu) 2. ctrl-right click on a bond 3. ctrl-left click and drag atoms on either side of the bond. Other mouse combinations allow you to move fragments in different ways...just play around with the different combinations on the mouse "matrix". Sculpting is a bit less obvious: PyMOL will take a snapshot of bond lenths, angles, and stereochemistry inside a molecule the first time sculpting is activated on an object. From then on, no matter what you do, PyMOL will labor to maintain those constraints while you drag atoms around or make other conformational changes. The Sculpting Wizard can help you out in getting started with this feature. However, the bottom line is that more work needs to be done on these aspects of PyMOL, and that's why increasing funding for PyMOL is essential. Until I can afford to start paying people to help me with development and documentation, progress will cotinue to be slow. So in closing, I wouldn't look to PyMOL as a workhorse conformational editing tool just yet -- give it another year or so. Cheers, Warren On Thu, 26 Sep 2002, Yu Shao wrote: > Hello everyone, > > Does anyone know how to use the conformation editing of PyMol, or has it > been implemented? It's unclear from the menual, which just said that > "Sorry, no documentation yet -- these features won't be too useful until > PyMOL is coupled up with an energy minimiation engine." Any infomation > will be highly appreciated. > > Best wishes, > Yu Shao > R.P.I. > > > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > PyMOL-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymol-users > |
From: Malcolm E D. <mal...@bm...> - 2002-09-27 19:46:04
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We just had a visit from VREX. They provide a variety of 3D options. They have one very low cost entry point for stereo glasses. For I believe $35, they have a pair of shutter glasses which connect via a wire into a pass through plug which goes between your box and the monitor cable. I don't know if you could put multiple of these in series or whether you are limited to one pair of glasses; you do have to live with being cabled to your computer; and I haven't actually seen these in action; but the price is very intriguing. They are also looking at a very interesting technology for 3D on a laptop with passive glasses. It just requires the software to support an alternate scanline mode for stereo (i.e. even scan lines one eye, odd scan lines the other). They even claim to be willing to pass along the OpenGL code required to implement this mode. Anyway, their web site is www.vrex.com, and no I am not a shareholder or getting any kickback for passing this along. :-) Malcolm Davis |