From e837f2eb1999e8560a4ed2f3486e4524b92c5fc8 Mon Sep 17 00:00:00 2001
From: Patrick Shriwise <pshriwise@gmail.com>
Date: Mon, 10 Jun 2019 20:19:57 -0500
Subject: [PATCH] Adding an xml setting for the showing the overlaps.

---
 include/openmc/plot.h |  3 ++-
 src/plot.cpp          | 15 +++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/include/openmc/plot.h b/include/openmc/plot.h
index 48920afad..1621def93 100644
--- a/include/openmc/plot.h
+++ b/include/openmc/plot.h
@@ -112,7 +112,7 @@ public:
   Position width_; //!< Plot width in geometry
   PlotBasis basis_; //!< Plot basis (XY/XZ/YZ)
   std::array<size_t, 3> pixels_; //!< Plot size in pixels
-  bool color_overlaps_ = true;
+  bool color_overlaps_;
   int level_; //!< Plot universe level
 };
 
@@ -210,6 +210,7 @@ private:
   void set_user_colors(pugi::xml_node plot_node);
   void set_meshlines(pugi::xml_node plot_node);
   void set_mask(pugi::xml_node plot_node);
+  void set_color_overlaps(pugi::xml_node plot_node);
 
 // Members
 public:
diff --git a/src/plot.cpp b/src/plot.cpp
index 78b1c6a71..91effefb3 100644
--- a/src/plot.cpp
+++ b/src/plot.cpp
@@ -657,6 +657,19 @@ Plot::set_mask(pugi::xml_node plot_node)
   }
 }
 
+void Plot::set_color_overlaps(pugi::xml_node plot_node) {
+  color_overlaps_ = false;
+  if (check_for_node(plot_node, "show_overlaps")) {
+    color_overlaps_ = get_node_value_bool(plot_node, "show_overlaps");
+  }
+
+  // make sure we allocate the vector for counting overlap checks if
+  // they're going to be plotted
+  if (color_overlaps_ && settings::run_mode == RUN_MODE_PLOTTING) {
+    settings::check_overlaps = true;
+  }
+}
+
 Plot::Plot(pugi::xml_node plot_node)
   : index_meshlines_mesh_{-1}
 {
@@ -672,6 +685,7 @@ Plot::Plot(pugi::xml_node plot_node)
   set_user_colors(plot_node);
   set_meshlines(plot_node);
   set_mask(plot_node);
+  set_color_overlaps(plot_node);
 } // End Plot constructor
 
 //==============================================================================
@@ -868,6 +882,7 @@ void create_voxel(Plot pl)
   pltbase.basis_ = PlotBasis::xy;
   pltbase.pixels_ = pl.pixels_;
   pltbase.level_ = -1; // all universes for voxel files
+  pltbase.color_overlaps_ = pl.color_overlaps_;
 
   ProgressBar pb;
   for (int z = 0; z < pl.pixels_[2]; z++) {