.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "user-guide/model-gallery/spatial/plot_template.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_user-guide_model-gallery_spatial_plot_template.py>`
        to download the full example code. or to run this example in your browser via Binder

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_user-guide_model-gallery_spatial_plot_template.py:


.. _template-spatial-model:

Template spatial model
======================

This is a spatial model based on a 2D sky map provided as a template.

.. GENERATED FROM PYTHON SOURCE LINES 11-14

Example plot
------------
Here is an example plot of the model:

.. GENERATED FROM PYTHON SOURCE LINES 14-31

.. code-block:: Python


    from gammapy.maps import Map
    from gammapy.modeling.models import (
        Models,
        PowerLawSpectralModel,
        SkyModel,
        TemplateSpatialModel,
    )

    filename = "$GAMMAPY_DATA/catalogs/fermi/Extended_archive_v18/Templates/RXJ1713_2016_250GeV.fits"

    m = Map.read(filename)
    m = m.copy(unit="sr^-1")
    model = TemplateSpatialModel(m, filename=filename)

    model.plot(add_cbar=True)




.. image-sg:: /user-guide/model-gallery/spatial/images/sphx_glr_plot_template_001.png
   :alt: plot template
   :srcset: /user-guide/model-gallery/spatial/images/sphx_glr_plot_template_001.png
   :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    /home/runner/work/gammapy-docs/gammapy-docs/gammapy/.tox/build_docs/lib/python3.9/site-packages/astropy/wcs/wcs.py:551: FITSFixedWarning: RADECSYS= 'FK5' 
    the RADECSYS keyword is deprecated, use RADESYSa.
      wcsprm = _wcs.Wcsprm(
    /home/runner/work/gammapy-docs/gammapy-docs/gammapy/.tox/build_docs/lib/python3.9/site-packages/astropy/wcs/wcs.py:803: FITSFixedWarning: 'celfix' made the change 'Success'.
      warnings.warn(




.. GENERATED FROM PYTHON SOURCE LINES 32-35

YAML representation
-------------------
Here is an example YAML file using the model:

.. GENERATED FROM PYTHON SOURCE LINES 35-43

.. code-block:: Python


    pwl = PowerLawSpectralModel()
    template = TemplateSpatialModel(m, filename=filename)

    model = SkyModel(spectral_model=pwl, spatial_model=template, name="pwl-template-model")
    models = Models([model])

    print(models.to_yaml())




.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Template file already exits, and overwrite is False
    components:
    -   name: pwl-template-model
        type: SkyModel
        spectral:
            type: PowerLawSpectralModel
            parameters:
            -   name: index
                value: 2.0
            -   name: amplitude
                value: 1.0e-12
                unit: cm-2 s-1 TeV-1
            -   name: reference
                value: 1.0
                unit: TeV
        spatial:
            type: TemplateSpatialModel
            frame: fk5
            parameters:
            -   name: lon_0
                value: 258.388
                unit: deg
            -   name: lat_0
                value: -39.762199399999986
                unit: deg
            filename: /home/runner/work/gammapy-docs/gammapy-docs/gammapy-datasets/1.3/catalogs/fermi/Extended_archive_v18/Templates/RXJ1713_2016_250GeV.fits
            normalize: true
            unit: 1 / sr
    metadata:
        creator: Gammapy 1.3
        date: '2024-11-26T10:08:41.331242'
        origin: null






.. _sphx_glr_download_user-guide_model-gallery_spatial_plot_template.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: binder-badge

      .. image:: images/binder_badge_logo.svg
        :target: https://mybinder.org/v2/gh/gammapy/gammapy-webpage/v1.3?urlpath=lab/tree/notebooks/1.3/user-guide/model-gallery/spatial/plot_template.ipynb
        :alt: Launch binder
        :width: 150 px

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

      :download:`Download Jupyter notebook: plot_template.ipynb <plot_template.ipynb>`

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

      :download:`Download Python source code: plot_template.py <plot_template.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: plot_template.zip <plot_template.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_