Severin Denk

Omas plot w new efit mapping

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Dependent on #256. This PR uses the new fields from #255 for the equilibrium summary plot. Regression test for `omas_plot` passes locally.

Reusing environment variables defined by other modules

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I have encountered the following situation and I could not find an immediate solution in the documentation. Assume I have a module `A`: ``` setenv("NETCDF_DIR","") ``` and a module `B`...

Is it possible to limit the amount of concurrent connections of a specific user

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**Affiliation** General Atomics/DIII-D **Context** We have an automated workflow that we are in the process of applying to a large chunk of our MDS+ database. At the moment the going...

ECH polarization is incorrect for newer shots

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For example `189588` triggers: https://github.com/gafusion/omas/blob/65e8238283eb0e985a94dc86c0512b41e2cdc679/omas/machine_mappings/d3d.py#L578 The default return value of `0` is not great because it should either be -1 or 1. See https://sharepoint.iter.org/departments/POP/CM/IMDesign/Data%20Model/CI/imas-3.41.0/ec_launchers.html

We are using MAP to solve a data analysis problem in plasma physics. For the MAP problem we usually only have a single point at which we want to differentiate...

Reuse MDSplus connections

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Before this PR OMAS would open a separate connection for every `(server, tree, shot)` tuple. This makes it impossible to retrieve more than `1000` unique tuples in the same session...

Mapping to/from rho tor norm

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Leaf of #258 Adds `rho_tor_norm` to the magnetic coordinates `omas_physics.remap_flux_coordinates` can map between. Wouldn't hurt if this someone double checked my math once #258 is merged. I did do a...

Force 64bit encoding for MDSplus data

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This change makes the MDSValue.raw() data fetching method always return 64-bit floats. This is important because the MDSplus data itself is stored as 32-bit and it retains this datatype when...

OMAS does not perform COCOS conversion for uncertainties

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Looking at https://github.com/gafusion/omas/blob/master/omas/omas_cocos.py I do not see a single uncertainty node (`_error_upper`). I can confirm that for `'equilibrium.time_slice.:.constraints.flux_loop.:.measured_error_upper'` the conversion is indeed not performed in practice. This seems to be...

Best location of v_loop

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Currently `V_loop` is stored in core_profiles but this choice is somewhat questionable as raised by @torrinba and @jmcclena in https://github.com/gafusion/omas/pull/360. Opening this issue so we can close this PR and...