[yt-users] OffAxisProjection axes problems

[Stephanie Tonnesen]

Hi Nathan,


So I tried two of your ideas, and don't get the last one.

ds.coordinates.x_axis[1] = 0
>     ds.coordinates.x_axis['y'] = 0
>     ds.coordinates.y_axis[1] = 2
>     ds.coordinates.y_axis['y'] = 2
>

Is the orientation correct (albeit with z along the horizontal axis and x
along the vertical axis) if you don't do this ^ ?

If I don't do that but still have the same L and north_vector, I get the
same results.

If I change L = [0,1,0] and north_vector=[0,0,1], I get the same results as
well.

Ugh!

I am not sure what "x" and "z" fields you think I should be making
OffAxisProjection s for?  Do you mean have L = [1,0,0] and [0,0,1], or have
it project an "x" and "z" field onto my off-axis projection?

Thanks,

Stephanie




--
Dr. Stephanie Tonnesen
Alvin E. Nashman Postdoctoral Fellow
Carnegie Observatories, Pasadena, CA
stonnes at gmail.com

On Thu, Jun 2, 2016 at 5:14 PM, Nathan Goldbaum <nathan12343 at gmail.com>
wrote:

>
>
> On Thu, Jun 2, 2016 at 6:45 PM, Stephanie Tonnesen <stonnes at gmail.com>
> wrote:
>
>> Hi all,
>>
>> The quick summary of what I want to do is switch the coordinates of the
>> x-axis on a OffAxisProjection plot.  Basically, what I am trying to do is
>> get a LOS look at a galaxy , so I need a 20 degree tilt in the y-z plane.
>> For some reason this is swapping the x-axis direction from my plain old y
>> slice.  The relevant parts of my code look like this:
>>
>> ds.coordinates.x_axis[1] = 0
>>     ds.coordinates.x_axis['y'] = 0
>>     ds.coordinates.y_axis[1] = 2
>>     ds.coordinates.y_axis['y'] = 2
>>
>
> Is the orientation correct (albeit with z along the horizontal axis and x
> along the vertical axis) if you don't do this ^ ?
>
> What happens if you make an off-axis projection aligned with the y axis,
> i.e. L = [0, 1, 0], north_vector = [0, 0, 1]?
>
> Can you try making an off-axis projection of the 'x' and 'z' fields?
>
>
>>
>>     plot6=yt.SlicePlot(ds,"y","density")
>>     plot6.save()
>>
>>     plot8=yt.SlicePlot(ds,"y","velocity_z")
>>     plot8.save()
>>
>>     plot9 = yt.SlicePlot(ds,"y","velocity_y")
>>     plot9.save()
>>
>>     plot10 = yt.SlicePlot(ds,"y","velocity_x")
>>     plot10.save()
>>
>>     ds.periodicity=(True,True,True)
>>
>>     L = [0.0,0.93969,-0.342]
>>     #W = [0.5,0.5,0.5]
>>     #c = [0.5,0.5,0.5]
>>     #N = 1028
>>     north_vector = [0,0.342,0.93969]
>>     plot12 =
>> yt.OffAxisProjectionPlot(ds,L,'density',width=(100,'kpc'),north_vector=north_vector)
>>     plot12.save()
>>
>>     plot13 =
>> yt.OffAxisProjectionPlot(ds,L,'velocity_x',width=(100,'kpc'),north_vector=north_vector)
>>     plot13.save()
>>     plot14 =
>> yt.OffAxisProjectionPlot(ds,L,'velocity_y',width=(100,'kpc'),north_vector=north_vector)
>>     plot14.save()
>>     plot15 =
>> yt.OffAxisProjectionPlot(ds,L,'velocity_z',width=(100,'kpc'),north_vector=north_vector)
>>     plot15.save()
>>
>> I have attached four files:  the slices of velocity_y and velocity_x and
>> the OffAxisProjections of the same.  You can see that the x-axis seems to
>> be flipped.  You will also notice that the OffAxisProjection is more zoomed
>> than the Slice, but don't let this distract you :)
>>
>> I have no idea what has gone wrong here.  Any help, as always, is really
>> appreciated.
>>
>> Thanks,
>> Stephanie
>> --
>> Dr. Stephanie Tonnesen
>> Alvin E. Nashman Postdoctoral Fellow
>> Carnegie Observatories, Pasadena, CA
>> stonnes at gmail.com
>>
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>>
>>
>
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