From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Sat, 28 Mar 2020 00:00:31 +0000 (-0600)
Subject: Link to step-67.
X-Git-Tag: v9.2.0-rc1~338^2~2^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c0fe608b85985cd4880970ad4765df3b3d5599e2;p=dealii.git

Link to step-67.
---

diff --git a/examples/step-69/step-69.cc b/examples/step-69/step-69.cc
index d97a0307d8..07f7da5337 100644
--- a/examples/step-69/step-69.cc
+++ b/examples/step-69/step-69.cc
@@ -421,7 +421,8 @@ namespace Step69
   // <a href="https://en.wikipedia.org/wiki/Schlieren">Schlieren</a>
   // postprocessing is a standard method for enhancing the contrast of a
   // visualization inspired by actual experimental X-ray and shadowgraphy
-  // techniques of visualization.
+  // techniques of visualization. (See step-67 for another example where we
+  // create a Schlieren plot.)
   template <int dim>
   class SchlierenPostprocessor : public ParameterAcceptor
   {