From d199d23140e1ee7213016eeaf05f98308fc1b431 Mon Sep 17 00:00:00 2001 From: Rene Gassmoeller Date: Thu, 26 Oct 2017 10:43:02 -0600 Subject: [PATCH] Update documentation --- include/deal.II/base/data_out_base.h | 4 +++- source/base/data_out_base.cc | 5 ++++- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/include/deal.II/base/data_out_base.h b/include/deal.II/base/data_out_base.h index 857c9e1c6e..994fae56d6 100644 --- a/include/deal.II/base/data_out_base.h +++ b/include/deal.II/base/data_out_base.h @@ -1214,7 +1214,9 @@ namespace DataOutBase * Filter duplicate vertices and associated values. This will drastically * reduce the output data size but will result in an output file that * does not faithfully represent the actual data if the data corresponds - * to discontinuous fields. + * to discontinuous fields. In particular, along subdomain boundaries + * the data will still be discontinuous, while it will look like a + * continuous field inside of the subdomain. */ bool filter_duplicate_vertices; diff --git a/source/base/data_out_base.cc b/source/base/data_out_base.cc index 4200ca4441..6ac99bf6c1 100644 --- a/source/base/data_out_base.cc +++ b/source/base/data_out_base.cc @@ -1890,7 +1890,10 @@ namespace DataOutBase "produced by entirely different means), then the data in the " "output file no longer faithfully represents the underlying data " "because the discontinuous field has been replaced by a " - "continuous one." + "continuous one. Note also that the filtering can not occur " + "on processor boundaries. Thus, a filtered discontinuous field " + "looks like a continuous field inside of a subdomain, " + "but like a discontinuous field at the subdomain boundary." "\n\n" "In any case, filtering results in drastically smaller output " "files (smaller by about a factor of 2^dim)."); -- 2.39.5