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r"""
.. _constant-spatial-model:
Constant spatial model
======================
This model is a spatially constant model.
"""
# %%
# Example plot
# ------------
# Here is an example plot of the model:
from gammapy.maps import WcsGeom
from gammapy.modeling.models import (
ConstantSpatialModel,
Models,
PowerLawSpectralModel,
SkyModel,
)
geom = WcsGeom.create(npix=(100, 100), binsz=0.1)
model = ConstantSpatialModel(value="42 sr-1")
model.plot(geom=geom, add_cbar=True)
# %%
# YAML representation
# -------------------
# Here is an example YAML file using the model:
pwl = PowerLawSpectralModel()
constant = ConstantSpatialModel()
model = SkyModel(spectral_model=pwl, spatial_model=constant, name="pwl-constant-model")
models = Models([model])
print(models.to_yaml())
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