From 59aa39170b96270f4a9afb1dc02925c3d2dc8f36 Mon Sep 17 00:00:00 2001
From: jkeger <jacob.kegerreis@gmail.com>
Date: Fri, 11 Apr 2025 12:14:33 +0100
Subject: [PATCH] Clarify FoF select-output docs
---
doc/RTD/source/FriendsOfFriends/stand_alone_fof.rst | 3 +++
doc/RTD/source/ParameterFiles/output_selection.rst | 3 +++
2 files changed, 6 insertions(+)
diff --git a/doc/RTD/source/FriendsOfFriends/stand_alone_fof.rst b/doc/RTD/source/FriendsOfFriends/stand_alone_fof.rst
index ecf82634ae..b802ac5f41 100644
--- a/doc/RTD/source/FriendsOfFriends/stand_alone_fof.rst
+++ b/doc/RTD/source/FriendsOfFriends/stand_alone_fof.rst
@@ -35,6 +35,9 @@ additional field for each particle. This contains the ``GroupID`` of
each particle and can be used to find all the particles in a given
halo and to link them to the information stored in the catalogue.
+The particle fields written to the snapshot can be modified using the
+:ref:`Output_selection_label` options.
+
.. warning::
Note that since not all particle properties are read in stand-alone
diff --git a/doc/RTD/source/ParameterFiles/output_selection.rst b/doc/RTD/source/ParameterFiles/output_selection.rst
index fb4e3a2a33..7da0babfcb 100644
--- a/doc/RTD/source/ParameterFiles/output_selection.rst
+++ b/doc/RTD/source/ParameterFiles/output_selection.rst
@@ -74,6 +74,9 @@ CGS. Entries in the file look like:
SmoothingLengths_Gas: on # Co-moving smoothing lengths (FWHM of the kernel) of the particles : a U_L [ cm ]
...
+This can also be used to set the outputs produced by the
+:ref:`fof_stand_alone_label`.
+
For cosmological simulations, users can optionally add the ``--cosmology`` flag
to generate the field names appropriate for such a run.
--
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