[yt-users] field parameters (you know I want to use them everywhere...)

[Elizabeth Tasker]

These both work great -- thank you!!

Elizabeth

On 1 December 2011 01:27, Matthew Turk <matthewturk at gmail.com> wrote:
> Hi Elizabeth,
>
> For the first bit, I have pushed a fix (all tests pass, but a new set
> of tests that test this functionality would be *very* welcome!).  What
> was happening was that slicing did not behave the same as 3D data
> objects for touching generated fields in grids.
>
> For the second one, you have used the variable 'fn' when saving your
> plotcollection, which you don't define.  So, it uses 'fn' from yt.mods
> (from which you have imported *) which is used in the determination of
> the plugins filename.  I have pushed a fix that also renames the
> variable used in determining the plugin location to be _fn, so it
> should not be a commonly found variable name.
>
> These fixes are both in 5c9ac6b8e610.
>
> -Matt
>
> On Wed, Nov 30, 2011 at 9:48 AM, Elizabeth Tasker
> <tasker at astro1.sci.hokudai.ac.jp> wrote:
>> Hi Matt,
>>
>> Calling it with dd is fine, it's when creating a slice I hit problems, i.e.
>>
>> pc.add_slice("EffectivePotential", 2, field_parameters={"disk_vector":disk_vector,
>> "disk_center":disk_center, "thiscore_omega":core_omega[c]})
>>
>>
>> And.... this is the script that decides to save my images in a confusing place:
>>
>> http://paste.yt-project.org/show/1963/
>>
>> It's a bit of an unhelpful beast, being long and using a non-default field of Enzo's (PotentialField). I can try making a smaller one that gives the same problem.
>>
>> Elizabeth
>>
>>
>>
>>
>> On 2011-11-30, at 11:39 PM, Matthew Turk wrote:
>>
>>> Hi Elizabeth,
>>>
>>> I can't reproduce your first error.  I am using this script:
>>>
>>> http://paste.yt-project.org/show/1973/
>>>
>>> and I am using revision a519b8754ba8.
>>>
>>> For your second error, it's a mystery to me; it's grabbing the path to
>>> your plugins file for some reason.  Can you maybe show a script that
>>> you use that produces this error?
>>>
>>> -Matt
>>>
>>> On Wed, Nov 30, 2011 at 3:31 AM, Elizabeth Tasker
>>> <tasker at astro1.sci.hokudai.ac.jp> wrote:
>>>> Hi,
>>>>
>>>> Two small problems:
>>>>
>>>> 1. Another issue with field parameters. I can't pass them to a slice
>>>> if the derived field also needs ValidateSpatial.
>>>>
>>>> i.e.
>>>>
>>>> def _EffectivePotential(field, data):
>>>>
>>>> center = na.array(data.get_field_parameter("disk_center"))
>>>> h_vec = na.array(data.get_field_parameter("disk_vector"))
>>>> omega = na.array(data.get_field_parameter("thiscore_omega"))
>>>> .
>>>> .
>>>> blah
>>>> .
>>>> .
>>>> add_field("EffectivePotential", function=_EffectivePotential,
>>>> validators=[ValidateSpatial(1, ["x-velocity", "y-velocity",
>>>> "z-velocity", "x", "y", "z"])])
>>>>
>>>>
>>>> p = pc.add_slice("EffectivePotential", 2,
>>>> field_parameters={"disk_vector":disk_vector,
>>>> "disk_center":disk_center, "thiscore_omega":core_omega[c]})
>>>>
>>>> can't find its field parameters but if I change the end line of the function to:
>>>>
>>>> add_field("EffectivePotential", function=_EffectivePotential)
>>>>
>>>> everything is fine.
>>>>
>>>> It actually seems to work OK even without the ValidateSpatial (I have
>>>> cross products in the function so pain has the potential to happen
>>>> without the full data) so perhaps this isn't a problem, but I think it
>>>> is a small bug?
>>>>
>>>>
>>>> 2. For some reason, yt has decided to save all my image files in:
>>>>
>>>> /home/tasker/.yt/my_plugins.py_Slice_z_EffectivePotential.png
>>>>
>>>> This is less than intuitive. Does anyone know why and how I can stop it?
>>>>
>>>> Thanks!
>>>>
>>>> Elizabeth
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