From 7cdc3775fdebe7ab55a279b781eb950942e39958 Mon Sep 17 00:00:00 2001
From: Jane Tournois <jane.tournois@geometryfactory.com>
Date: Fri, 4 Sep 2020 15:59:17 +0200
Subject: [PATCH] get the sharp edges back after remeshing

they were saved in ecm and edges_to_protect but not back-ported
to eif
---
 .../Polyhedron/Plugins/PMP/Isotropic_remeshing_plugin.cpp   | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Polyhedron/demo/Polyhedron/Plugins/PMP/Isotropic_remeshing_plugin.cpp b/Polyhedron/demo/Polyhedron/Plugins/PMP/Isotropic_remeshing_plugin.cpp
index 222e0310031..ffd400db798 100644
--- a/Polyhedron/demo/Polyhedron/Plugins/PMP/Isotropic_remeshing_plugin.cpp
+++ b/Polyhedron/demo/Polyhedron/Plugins/PMP/Isotropic_remeshing_plugin.cpp
@@ -608,6 +608,12 @@ public Q_SLOTS:
                .number_of_relaxation_steps(nb_smooth)
                .edge_is_constrained_map(ecm)
                .relax_constraints(smooth_features));
+
+          //recollect sharp edges
+          for(edge_descriptor e : edges(pmesh))
+            eif[e] = false;
+          for(edge_descriptor e : edges_to_protect)
+            eif[e] = true;
         }
         if (fpmap_valid)
         {