VMD-L Mailing List

From: George Patargias (gpat_at_bioacademy.gr)
Date: Thu Oct 16 2014 - 04:06:22 CDT

Hello,
I know that forces can be applied in VMD (during an IMD) using the Mouse
menu of the VMD Main window and then select "Mouse -> Force -> Fragment"

Where the the value of the applied force is reported?

Thanks.

> George,
> Yes, we'll have to get you a new VMD so that it will see VRPN,
> but we can help you with that once you get VRPN talking to the Falcon.
> Which VRPN version are you using by the way?
>
> Cheers,
> John
>
> On Wed, Oct 15, 2014 at 06:34:41PM +0300, George Patargias wrote:
>> Hello
>>
>> Thanks for your reply. The issue is that VRPN can't see the Falcon -
>> sorry
>> for not being clear. Maybe it needs a powered hub to work as Axel has
>> pointed out.
>>
>> As far as I can tell, VMD 1.9.1 that I am currently running can see
>> VPRN
>> because when I try to create a "tug" type of tool I get the message in
>> VMD terminal
>>
>> VRPN Error
>> from Tracker0: No response from server for >= 10 seconds
>>
>> Best
>> George
>>
>> > Hi,
>> > VMD can't directly talk to the Falcon, instead, it communicates
>> > with VRPN, and VRPN takes care of directly communicating with the
>> > Falcon. From your note it wasn't entirely clear if the issue is
>> > that VRPN can't see the Falcon, or if VMD can't see VRPN. If the
>> > problem is that VRPN can't see the Falcon, then I will have to defer
>> > to the expertise of others here that have used the VRPN servers with
>> > the Falcon and see what suggestions they have.
>> >
>> > If the problem is that VMD can't talk to VRPN, then the most likely
>> issue
>> > is that we need to get you a VMD binary that is compiled against a
>> newer
>> > version of VRPN, because previous VMD binaries were compiled against
>> an
>> > old VRPN version that is now out of date. If this is the problem, I
>> can
>> > help you get this done, as it is on my TODO list for the new VMD 1.9.2
>> > release, and it would be great to have people test it out.
>> >
>> > Cheers,
>> > John Stone
>> > vmd_at_ks.uiuc.edu
>> >
>> >
>> > On Wed, Oct 15, 2014 at 06:07:29PM +0300, George Patargias wrote:
>> >> Hello,
>> >>
>> >> I was wondering whether VMD can be configured to communicate with the
>> >> Novint Falcon haptic if the latter is controlled with the Windows
>> >> drivers
>> >> provided by Novint.
>> >>
>> >> I have compiled and installed VRPN on my Linux desktop but for some
>> >> reason
>> >> the VRPN server doesn't recognize it.
>> >>
>> >> Thanks.
>> >>
>> >> George
>> >>
>> >>
>> >> Dr. George Patargias
>> >> Postdoctoral Research Fellow
>> >> Biomedical Research Foundation
>> >> Academy of Athens
>> >> 4, Soranou Ephessiou
>> >> 115 27
>> >> Athens
>> >> Greece
>> >>
>> >> Office: +302106597568
>> >
>> > --
>> > NIH Center for Macromolecular Modeling and Bioinformatics
>> > Beckman Institute for Advanced Science and Technology
>> > University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
>> > http://www.ks.uiuc.edu/~johns/ Phone: 217-244-3349
>> > http://www.ks.uiuc.edu/Research/vmd/
>> >
>>
>>
>> Dr. George Patargias
>> Postdoctoral Research Fellow
>> Biomedical Research Foundation
>> Academy of Athens
>> 4, Soranou Ephessiou
>> 115 27
>> Athens
>> Greece
>>
>> Office: +302106597568
>
> --
> NIH Center for Macromolecular Modeling and Bioinformatics
> Beckman Institute for Advanced Science and Technology
> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> http://www.ks.uiuc.edu/~johns/ Phone: 217-244-3349
> http://www.ks.uiuc.edu/Research/vmd/
>
>

Dr. George Patargias
Postdoctoral Research Fellow
Biomedical Research Foundation
Academy of Athens
4, Soranou Ephessiou
115 27
Athens
Greece

Office: +302106597568