Small update to SceneMaker, making it more explicit that SceneMaker e…

…xtends, rather than replaces, GroupMaker
astropy · Apr 22, 2019 · 753ca3e · 753ca3e
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diff --git a/docs/psf_spec/scene_maker.rst b/docs/psf_spec/scene_maker.rst
@@ -6,7 +6,7 @@ is therefore a work in progress and should be considered as such.
 
 However, the block will likely involve an additional column or variable attributed
 to each source in the input `~astropy.table.Table` indicating whether sources are
-stars or more extended objects. This column will be used in conjunction with 
+stars or more extended objects. This column will be used in conjunction with
 ``SingleObjectModel``, which already has the framework to accept ``object_type`` which
 allows for individual extended sources to be handled, depending on the specific
 class used for the specific purpose. The given list of single object models allowed
@@ -15,3 +15,10 @@ source classes (stars, galaxies, etc.) as ``SceneMaker`` uses to group and merge
 detected sources into point sources or extended objects. The block must also handle
 the possibility of merging several point sources into an extended object and vice
 versa.
+
+SceneMaker should be considered an extension of GroupMaker, and will likely accept
+outputs from that block. Sources grouped together by GroupMaker will subsequently
+be assigned as multiple single sources or one larger, extended source erroneously split
+up by the Finder, or some combination of the two. This information will then be used by
+SingleObjectModel to fit the grouped sources as either individual point sources or
+extended sources, based on ``object_type``.
diff --git a/docs/psf_spec/single_object_model.rst b/docs/psf_spec/single_object_model.rst
@@ -7,7 +7,7 @@ effects of the PSF, extending the ``psf_model`` block of the PSF
 fitting routine to include non-point sources. This method may be subject
 to API changes in future versions and should not be considered final.
 
-This block is an additional step between the PSF (or PRF) 
+This block is an additional step between the PSF (or PRF)
 `~astropy.modeling.Fittable2DModel` and the
 `~astropy.modeling.fitting.Fitter` instance, to allow for cases
 where the images being fit contain sources other than point sources. In