Thank you for the reply Daniel. I want to have something similar to the rigid body mover, except when the RigidBody object is moved, objects which are related to it by a Cn symmetry operation are moved in such as was as to preserve the symmetry, just as SymmetrySampler samples when using domino.
I have tried this by adding an overloaded RigidBodyMover constructor which takes in a Particles*, and by creating a new 'SymmerticalRigidBodyMover' class in the core model. However, after re-compiling, _IMP_core.so doesn't contain the new functions and crashes when I try to import IMP into python. I've also tried creating a new module containg my desired Mover class, but it doesn't even compile.
Thanks,
Iain
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Today's Topics:
1. Re: Symmetry (Daniel Russel)
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Message: 1
Date: Sat, 12 Mar 2011 11:58:04 -0800
From: Daniel Russel <>
Subject: Re: [IMP-users] Symmetry
To: Help and discussion for users of IMP <>,
Keren Lasker <>
Message-ID: <>
Content-Type: text/plain; charset=us-ascii
On Mar 11, 2011, at 12:05 AM, Iain Moal wrote:
> Hi,
> I am new to IMP so please fogive naievity!
> Is it possible to use IMP::domino::SymmetrySampler as a Monte Carlo mover? If not, how could I impliment it as a mover. It isn't evident how I could impliment this using MoverBase, nor what the list of attributes are for.
I'm unclear on exactly what you would want as your move set? Picking a random choice from a discrete set? Chances are that you want to use the X,Y,Z coordinate keys as the float attributes list when using the MoverBase (you can get those from IMP::core::XYZ::get_coordinate_keys()). If you then store a list of coordinate values in your Mover, you can pick one of those for each particle to be moved and do IMP::core::XYZ(p).set_coordinates(new_coordinates) to change them.
Does that help?
> Also, when reconstructing em maps, such as in particles2density, I get this warning:
> WARNING could not find parameters for radius:8.16743
> EM map is using default params
>
> What does this mean, are the default params ok?
Keren will have to answer this.
Daniel
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