Hi Nathan, Yup! The textfile has positions and radii of several spheres. Even a hack is most welcome at this point :) -Jill On Mon, Nov 17, 2014 at 5:57 PM, Nathan Goldbaum wrote:

So this is a text file containing positions and radii of many spheres?

Doug Rudd (cc'd) has been thinking about composing selectors. I'm not sure if it's possible to combine selectors using a boolean addition like you need yet. He might have a better idea of what's necessary to get that working.

-Nathan

On Mon Nov 17 2014 at 2:31:45 PM Naiman, Jill wrote:

...

Hi all,

I'm trying to mask out several spheres in my domain before making a phase plot. Is there a way to do this? I've tried making a derived field, using the boolean mask things, and checked out the "masking domain" section of the cookbook with little success.

The regions I want to mask out come from a text file of x/y/z coordinates and radii.

Thanks for any insights! -Jill _______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org

_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org

Boolean objects still work in yt 2.x, I believe. You could always go back to that version and do it there? http://yt-project.org/docs/2.6/cookbook/constructing_data_objects.html?highl... On Mon, Nov 17, 2014 at 4:36 PM, Douglas Harvey Rudd wrote:

Hi Jill,

The boolean masks don’t work in yt 3.0, and my addition currently only allows you to compute the union of two selectors. I do plan to generalize what I did to allow negation and intersection, but I’m not sure when I’ll be able to get to it.

Douglas Rudd Scientific Computing Consultant Research Computing Center drudd@uchicago.edu

On Nov 17, 2014, at 5:06 PM, Naiman, Jill wrote:

Hi Nathan,

Yup! The textfile has positions and radii of several spheres.

Even a hack is most welcome at this point :)

-Jill

On Mon, Nov 17, 2014 at 5:57 PM, Nathan Goldbaum wrote:

...

So this is a text file containing positions and radii of many spheres?

Doug Rudd (cc'd) has been thinking about composing selectors. I'm not sure if it's possible to combine selectors using a boolean addition like you need yet. He might have a better idea of what's necessary to get that working.

-Nathan

On Mon Nov 17 2014 at 2:31:45 PM Naiman, Jill < jill.naiman@cfa.harvard.edu> wrote:

...

Hi all,

I'm trying to mask out several spheres in my domain before making a phase plot. Is there a way to do this? I've tried making a derived field, using the boolean mask things, and checked out the "masking domain" section of the cookbook with little success.

The regions I want to mask out come from a text file of x/y/z coordinates and radii.

Thanks for any insights! -Jill _______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org

_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org

_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org

_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org

-- Cameron Hummels Postdoctoral Researcher Steward Observatory University of Arizona http://chummels.org