From: Wolfgang Bangerth Date: Thu, 30 Jan 2025 03:40:48 +0000 (-0700) Subject: Update a comment in step-38. X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9e4c281a0d0bf717fa35561becebe711589bc6b0;p=dealii.git Update a comment in step-38. --- diff --git a/examples/step-38/doc/results.dox b/examples/step-38/doc/results.dox index fa5d0eda7c..142dc2a0a1 100644 --- a/examples/step-38/doc/results.dox +++ b/examples/step-38/doc/results.dox @@ -137,12 +137,14 @@ void LaplaceBeltrami::make_grid_and_dofs() Note that the only essential addition is the line marked with asterisks. It is worth pointing out one other thing here, though: because we detach the manifold description from the surface mesh, whenever we use a -mapping object in the rest of the program, it has no curves boundary +mapping object in the rest of the program, it has no curved boundary description to go on any more. Rather, it will have to use the implicit, FlatManifold class that is used on all parts of the domain not explicitly assigned a different manifold object. Consequently, whether we use MappingQ(2), MappingQ(15) or MappingQ1, each cell of our mesh will be mapped -using a bilinear approximation. +using a bilinear approximation. (That is of course undesirable, and can be +fixed by creating a manifold description of the domain you have, and attaching +this manifold to the triangulation.) All these drawbacks aside, the resulting pictures are still pretty. The only other differences to what's in step-38 is that we changed the right hand side