Re: [h5md-user] fix remaining imprecisions - particle position

[Pierre de Buyl]

On Fri, Jan 10, 2014 at 02:56:27PM +0100, Felix Höfling wrote:
> Am 10.01.2014, 14:51 Uhr, schrieb Pierre de Buyl <address@hidden>:
> 
> >On Fri, Jan 10, 2014 at 02:17:59PM +0100, Felix Höfling wrote:
> >>
> >>I was not aware that you're actually using the offset. I've got the
> >>impression from the mailing list that this piece of information is
> >>implementation-dependent and is typically not stored in data files.
> >>You may revert the respective commit if you feel that the field
> >>should be present.
> >>
> >>Concerning the bounding box: it is a promise made to, e.g.,
> >>visualisation software to choose the initial viewport without
> >>scanning the whole(!) trajectory. Particles outside the box
> >>(violating the promise) could silently be dropped. If it turns out
> >>that such a bounding box is not of interest for anybody please
> >>remove it.
> >>
> >>I made these changes to the repository to reflect the state of the
> >>discussion. Otherwise, the suggestions on the list often remain
> >>without feedback and fade away as time goes by. I hope that we can
> >>really finalise version 1.0 without further delay.
> >>
> >
> >Hi Felix,
> >
> >Thanks for your reply. I also hope that this is over soon :-)
> >
> >I hadn't the visualization issue in mind, but I am sure that
> >visualization
> >software (VMD for instance) compute it on the fly when reading particles'
> >coordinates. I am trying to check this.
> >
> >Also, the fact that it is proposed now pushes me to put into
> >"discussion".
> >
> >I am using "offset", indeed, but if it bring confusion to others I
> >am ok to let
> >it go.
> >
> 
> Hi Pierre,
> 
> I've just had a quick chat with Olaf on the phone. We found that a
> separate module for visualisation would be useful as more
> information is needed, e.g., by VMD. Such a module would a good
> place to define the bounding box, which is then not an attribute to
> position any more, but a proper H5MD element. (Allowing for fixed
> and changing bounding boxes.)
> 
> Felix
> 

Ok then :-)