[yt-users] How ot overplot star particles on density projections

[Latif]

Hi all,
Is there any way to annotate particles to the multi-plot
porjections/slices? I am using the following recipe from the webpage.

http://yt-project.org/doc/cookbook/multi_plot_slice_and_proj.py

thanks in advance,

Cheers
Latif


On Thu, Jul 4, 2013 at 9:43 PM, Latif <latifne at gmail.com> wrote:

> HI Matt,
> Thank you for a prompt and precise response.
> Cheers
> Latif
>
>
>
> On Thu, Jul 4, 2013 at 7:04 PM, Matthew Turk <matthewturk at gmail.com>wrote:
>
>> Hi Latif,
>>
>> The callback you're looking for is "particles" and you can specify a
>> "ptype" argument for specifying the type of particles.  (If you're
>> using Enzo, this should be the number in the "particle_type" field you
>> are selecting.)  Note also that annotate_particles accepts a width
>> argument, in code units, which says how wide the selected region will
>> be around the center of the slice or the center of the box for
>> projections.  So if you are using a projection and you want the whole
>> box, you can do 1.0/pf['unitary'] to get the full domain.
>>
>> Here is an example:
>>
>> s = SlicePlot(pf, "x", "Density")
>> s.annotate_particles(1.0/pf['kpc'], p_size = 1.0, ptype = 1)
>>
>> which will choose particle_type = =1.
>>
>> -Matt
>>
>> On Thu, Jul 4, 2013 at 10:20 AM, Latif <latifne at gmail.com> wrote:
>> > Hi all,
>> > I want to overplot star particles on density projections/slices. It is
>> > probably a very simple question but could not figure out how to do it.
>>  Can
>> > I also get information about their position and velocities as well?
>> > thanks in advance,
>> > Cheers
>> > Latif
>> >
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