Re: [yt-users] Integration of a field along line of sight

Hi Tazkera, You can always get rays and do the integration yourself: ray = ds.ray(p1,p2) dens = ray['density'] where p1 and p2 are tuples of the end points of the ray. If you're using cartesian coordinates then you can also get x, y and z along the ray: x = ray['x'] etc. then the position is just r = np.sqrt(x**2 + y**2 + z**2) and you can use a numpy or scipy integration method. If you're using data from an AMR run you may need to sort the data: tord = ray['t']) dens = ray['dens'][tord] and similarly for other data from the ray. Regards, Jon On Wed, Nov 1, 2017 at 1:17 AM, <yt-users-request@lists.spacepope.org> wrote:
Date: Tue, 31 Oct 2017 17:56:39 -0400 From: tazkera haque <h.tazkera@gmail.com> To: Discussion of the yt analysis package <yt-users@lists.spacepope.org> Subject: [yt-users] Integration of a field along line of sight Message-ID: <CAFj_7zy_P2FrQSf9DMi0-DkXZOOSvdW=poWO_JzZ_cgQD+aCYQ@ mail.gmail.com> Content-Type: text/plain; charset="utf-8"
Dear YT people,
I need to do integration of density field along line of sight. I know the ProjectionPlot function plots the integration of a field along line of sight.
yt.ProjectionPlot(ds, 'z', 'density, center= 'm')
However, I was wondering if it is possible to get the projection as an array (or new field) , so that I can make a ProfilePlot of the integrated field along line of sight and another field ('Mass')
In other words, I want to do the following:
sp = ds.sphere("max", (200, "kpc")) proj = yt.ProfilePlot(sp, 'Integrated_Density_along_Line_Of_Sight', 'Mass)
Thanks Tazkera -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.spacepope.org/pipermail/yt-users-spacepope. org/attachments/20171031/038832cb/attachment-0001.html>
------------------------------
Subject: Digest Footer
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
------------------------------
End of yt-users Digest, Vol 116, Issue 34 *****************************************
-- ________________________________________________________ Jonathan D. Slavin Harvard-Smithsonian CfA jslavin@cfa.harvard.edu 60 Garden Street, MS 83 phone: (617) 496-7981 Cambridge, MA 02138-1516 cell: (781) 363-0035 USA ________________________________________________________
participants (1)
-
Slavin, Jonathan