:orphan:

Example gallery
===============

These examples show simple calculations and tasks
that can be done with the RADIS package.

Other examples can be found in the dedicated
`radis-examples <https://github.com/radis/radis-examples>`__
repository.


All examples can be run online, without any install required:

- Download the Jupyter notebook  `.ipynb` in the example page.

- start `Radis-Lab <https://radis.github.io/radis-lab/>`__,
  upload the Jupyter notebook, and run it from there.


.. note::

    Radis-Lab allows you to share your session URL with colleagues.
    They will access the latest saved version of your notebook as long
    as your session is running.



.. raw:: html

    <div class="sphx-glr-thumbnails">


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="RADIS can simply be used to calculate the rovibrational energies of molecules, using the built-...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_calculate_rovibrational_energies_thumb.png
    :alt: Calculate Rovibrational Energies

  :ref:`sphx_glr_auto_examples_calculate_rovibrational_energies.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Calculate Rovibrational Energies</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Quickly load and plot a slit function with :py:func:`~radis.tools.slit.plot_slit`">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_slit_function_thumb.png
    :alt: Slit Function

  :ref:`sphx_glr_auto_examples_plot_slit_function.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Slit Function</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="By default and for equilibrium calculations, RADIS calculates Partition Functions using the TIP...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_calculate_partition_functions_from_tips_thumb.png
    :alt: Partition Functions from TIPS

  :ref:`sphx_glr_auto_examples_calculate_partition_functions_from_tips.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Partition Functions from TIPS</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Database will be downloaded automatically and can be edited locally.">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_hitemp_OH_database_thumb.png
    :alt: Download the HITEMP database

  :ref:`sphx_glr_auto_examples_plot_hitemp_OH_database.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Download the HITEMP database</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="RADIS is built on the shoulders of many state-of-the-art packages and databases. If using RADIS...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_cite_all_works_thumb.png
    :alt: Cite all references used

  :ref:`sphx_glr_auto_examples_cite_all_works.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Cite all references used</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Load an experimental spectrum stored as .spec (with units and metadata) using :py:func:`~radis....">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_experimental_spectrum_thumb.png
    :alt: Load an experimental spectrum

  :ref:`sphx_glr_auto_examples_plot_experimental_spectrum.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Load an experimental spectrum</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Plot details of every single line in a spectrum.">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_line_survey_thumb.png
    :alt: Line Survey

  :ref:`sphx_glr_auto_examples_plot_line_survey.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Line Survey</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Compute Planck&#x27;s blackbody emission and return a RADIS :py:class:`~radis.spectrum.spectrum.Spec...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_blackbody_thumb.png
    :alt: Blackbody radiation

  :ref:`sphx_glr_auto_examples_plot_blackbody.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Blackbody radiation</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="RADIS can calculate equilibrium and non-LTE Partition Functions from a given set of spectroscop...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_calculate_partition_functions_from_constants_thumb.png
    :alt: Partition Functions from spectroscopic constants

  :ref:`sphx_glr_auto_examples_calculate_partition_functions_from_constants.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Partition Functions from spectroscopic constants</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Remove a baseline from an experimental spectrum :">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_remove_baseline_thumb.png
    :alt: Remove a baseline

  :ref:`sphx_glr_auto_examples_plot_remove_baseline.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Remove a baseline</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Database will be downloaded automatically and can be edited locally.">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_explore_database_vaex_thumb.png
    :alt: Explore Line Database Parameters

  :ref:`sphx_glr_auto_examples_plot_explore_database_vaex.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Explore Line Database Parameters</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Example using GPU calculation with :py:meth:`~radis.lbl.SpectrumFactory.eq_spectrum_gpu`">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_gpu_thumb.png
    :alt: GPU Accelerated Spectra

  :ref:`sphx_glr_auto_examples_plot_gpu.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">GPU Accelerated Spectra</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Compute a CO spectrum with the temperature of the vibrational mode different from the temperatu...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_nonequilibrium_co_spectrum_thumb.png
    :alt: Calculate non-LTE spectra of carbon-monoxide

  :ref:`sphx_glr_auto_examples_plot_nonequilibrium_co_spectrum.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Calculate non-LTE spectra of carbon-monoxide</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Shows how to customize plot styles, using :py:mod:`seaborn` , :py:mod:`matplotlib` or `publib &lt;...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_styles_thumb.png
    :alt: Use different plot themes

  :ref:`sphx_glr_auto_examples_plot_styles.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Use different plot themes</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="In may be faster to calculate a full-range spectrum on several partial spectral ranges, and com...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_merged_large_spectrum_thumb.png
    :alt: Calculate a large spectrum by part

  :ref:`sphx_glr_auto_examples_plot_merged_large_spectrum.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Calculate a large spectrum by part</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="GEISA Database has been newly implemented in RADIS 0.13 release on May 15, 2022. This is among ...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_compare_CO_geisa_hitran_thumb.png
    :alt: Compare CO spectrum from the GEISA and HITRAN database

  :ref:`sphx_glr_auto_examples_plot_compare_CO_geisa_hitran.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Compare CO spectrum from the GEISA and HITRAN database</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Retrieve isotopologue abundances or molecular mass, based on HITRAN data, using :py:class:`~rad...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_get_molecular_parameters_thumb.png
    :alt: Get Molecular Parameters

  :ref:`sphx_glr_auto_examples_get_molecular_parameters.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Get Molecular Parameters</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Auto-download and compute a CO spectrum from HITEMP ([HITEMP-2010]_).">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_hitemp_spectrum_thumb.png
    :alt: Calculate a spectrum from HITEMP

  :ref:`sphx_glr_auto_examples_plot_hitemp_spectrum.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Calculate a spectrum from HITEMP</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Custom isotopologue abundances can be defined, to model non-terrestrial atmospheres.">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_custom_abundances_thumb.png
    :alt: Use Custom Abundances

  :ref:`sphx_glr_auto_examples_plot_custom_abundances.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Use Custom Abundances</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Auto-download and compute a SiO spectrum from the ExoMol database ([ExoMol-2020]_)">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_exomol_spectrum_thumb.png
    :alt: Calculate a spectrum from ExoMol

  :ref:`sphx_glr_auto_examples_plot_exomol_spectrum.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Calculate a spectrum from ExoMol</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Example using GPU sliders and GPU calculation with :py:meth:`~radis.lbl.SpectrumFactory.eq_spec...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_gpu_widgets_thumb.png
    :alt: Real-time GPU Accelerated Spectra (Interactive)

  :ref:`sphx_glr_auto_examples_plot_gpu_widgets.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Real-time GPU Accelerated Spectra (Interactive)</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Spectrum methods gives you access to the populations of levels used in a nonequilibrium spectru...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_populations_thumb.png
    :alt: See populations of computed levels

  :ref:`sphx_glr_auto_examples_plot_populations.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">See populations of computed levels</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="We compute the transmittance of an homogeneous, 1-km atmosphere layer at 300 K and 1 atm, with ...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_calc_hitran_full_range_thumb.png
    :alt: Calculate a full range spectrum

  :ref:`sphx_glr_auto_examples_calc_hitran_full_range.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Calculate a full range spectrum</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="RADIS has :py:class:`~radis.tools.database.SpecDatabase` feature used to store and retrieve cal...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_SpecDatabase_thumb.png
    :alt: Spectrum Database

  :ref:`sphx_glr_auto_examples_plot_SpecDatabase.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Spectrum Database</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Auto-download and calculate CO spectrum from the HITEMP database, and the ExoMol database. ExoM...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_compare_CO_exomol_hitemp_thumb.png
    :alt: Compare CO xsections from the ExoMol and HITEMP database

  :ref:`sphx_glr_auto_examples_plot_compare_CO_exomol_hitemp.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Compare CO xsections from the ExoMol and HITEMP database</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Find peaks or uncertainties using the :py:mod:`specutils` library. A Radis Spectrum object can ...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_specutils_processing_thumb.png
    :alt: Post-process using Specutils

  :ref:`sphx_glr_auto_examples_plot_specutils_processing.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Post-process using Specutils</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="A method to fit an experimental spectrum directly from :py:class:`~radis.lbl.factory.SpectrumFa...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_multi_temperature_fit_thumb.png
    :alt: Multi-temperature Fit

  :ref:`sphx_glr_auto_examples_plot_multi_temperature_fit.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Multi-temperature Fit</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Quickly fit an experimental spectrum with a one-temperature model, directly from :py:class:`~ra...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_1T_fit_thumb.png
    :alt: 1 temperature fit

  :ref:`sphx_glr_auto_examples_plot_1T_fit.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">1 temperature fit</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="This example scales the linestrengths of CO to Tgas=300 from Tref = 296 and then plots the line...">

.. only:: html

  .. image:: /auto_examples/images/thumb/sphx_glr_plot_linestrengths_thumb.png
    :alt: Scale Linestrengths of carbon-monoxide

  :ref:`sphx_glr_auto_examples_plot_linestrengths.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Scale Linestrengths of carbon-monoxide</div>
    </div>


.. raw:: html

    </div>


.. toctree::
   :hidden:

   /auto_examples/calculate_rovibrational_energies
   /auto_examples/plot_slit_function
   /auto_examples/calculate_partition_functions_from_tips
   /auto_examples/plot_hitemp_OH_database
   /auto_examples/cite_all_works
   /auto_examples/plot_experimental_spectrum
   /auto_examples/plot_line_survey
   /auto_examples/plot_blackbody
   /auto_examples/calculate_partition_functions_from_constants
   /auto_examples/plot_remove_baseline
   /auto_examples/plot_explore_database_vaex
   /auto_examples/plot_gpu
   /auto_examples/plot_nonequilibrium_co_spectrum
   /auto_examples/plot_styles
   /auto_examples/plot_merged_large_spectrum
   /auto_examples/plot_compare_CO_geisa_hitran
   /auto_examples/get_molecular_parameters
   /auto_examples/plot_hitemp_spectrum
   /auto_examples/plot_custom_abundances
   /auto_examples/plot_exomol_spectrum
   /auto_examples/plot_gpu_widgets
   /auto_examples/plot_populations
   /auto_examples/calc_hitran_full_range
   /auto_examples/plot_SpecDatabase
   /auto_examples/plot_compare_CO_exomol_hitemp
   /auto_examples/plot_specutils_processing
   /auto_examples/plot_multi_temperature_fit
   /auto_examples/plot_1T_fit
   /auto_examples/plot_linestrengths


.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-gallery

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download all examples in Python source code: auto_examples_python.zip </auto_examples/auto_examples_python.zip>`

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download all examples in Jupyter notebooks: auto_examples_jupyter.zip </auto_examples/auto_examples_jupyter.zip>`