From 695acdb0fc4e9dcf4d43ff4776ee8193e866857f Mon Sep 17 00:00:00 2001
From: Christophe Geuzaine <cgeuzaine@ulg.ac.be>
Date: Thu, 2 May 2013 05:52:58 +0000
Subject: [PATCH] clarify # of tags required by gmsh
---
doc/texinfo/gmsh.texi | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/doc/texinfo/gmsh.texi b/doc/texinfo/gmsh.texi
index ee48423a85..f02e389f3a 100644
--- a/doc/texinfo/gmsh.texi
+++ b/doc/texinfo/gmsh.texi
@@ -3459,7 +3459,8 @@ entity to which the element belongs; the second is the number of the
elementary geometrical entity to which the element belongs; the third is
the number of mesh partitions to which the element belongs, followed by
the partition ids (negative partition ids indicate ghost cells). A zero
-tag is equivalent to no tag.
+tag is equivalent to no tag. Gmsh and most codes using the MSH 2 format
+require at least the first two tags (physical and elementary tags).
@item @var{node-number-list}
is the list of the node numbers of the @var{n}-th element. The ordering of
--
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