From e84fd4649b05fe250ba3fcb7bc4ccd73a764ba68 Mon Sep 17 00:00:00 2001
From: phkahler <14852918+phkahler@users.noreply.github.com>
Date: Mon, 11 May 2020 14:57:02 -0400
Subject: [PATCH] Use omp critical to simplify parallel triangulation. NFC.

---
 src/srf/surface.cpp | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/srf/surface.cpp b/src/srf/surface.cpp
index a7be96825..6afcc791b 100644
--- a/src/srf/surface.cpp
+++ b/src/srf/surface.cpp
@@ -1050,16 +1050,12 @@ void SShell::MakeSectionEdgesInto(Vector n, double d, SEdgeList *sel, SBezierLis
 }
 
 void SShell::TriangulateInto(SMesh *sm) {
-    std::vector<SMesh> tm(surface.n);
-
 #pragma omp parallel for
     for(int i=0; i<surface.n; i++) {
         SSurface *s = &surface[i];
-        s->TriangulateInto(this, &tm[i]);
-    }
-
-    // merge the per-surface meshes
-    for (auto& m : tm) {
+        SMesh m;
+        s->TriangulateInto(this, &m);
+        #pragma omp critical
         sm->MakeFromCopyOf(&m);
         m.Clear();
     }