From 948f90b6493da83d10e18f30b0fbb8e937e29c0b Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Mon, 24 Jun 2019 21:41:34 -0400
Subject: mostly implemented the ability to find dead bonds using topological
 properties

---
 lib/include/graph.hpp   |  2 ++
 lib/include/network.hpp | 46 +++++++++++++++++++++++++++++++++-------------
 lib/include/problem.hpp |  4 +++-
 3 files changed, 38 insertions(+), 14 deletions(-)

(limited to 'lib/include')

diff --git a/lib/include/graph.hpp b/lib/include/graph.hpp
index 45cc478..0452339 100644
--- a/lib/include/graph.hpp
+++ b/lib/include/graph.hpp
@@ -21,6 +21,8 @@ class graph {
 
     typedef struct vertex {
       coordinate r;
+      std::vector<unsigned> nd;
+      std::vector<unsigned> ne;
       std::vector<coordinate> polygon;
     } vertex;
 
diff --git a/lib/include/network.hpp b/lib/include/network.hpp
index 544f828..8211cfc 100644
--- a/lib/include/network.hpp
+++ b/lib/include/network.hpp
@@ -7,6 +7,7 @@
 #include <random>
 #include <limits>
 #include <valarray>
+#include <set>
 
 #include "problem.hpp"
 #include "graph.hpp"
@@ -16,60 +17,79 @@
 
 #define CURRENT_CUTOFF 1e-10
 
+#include <boost/graph/adjacency_list.hpp>
+#include <boost/graph/connected_components.hpp>
+#include <boost/graph/depth_first_search.hpp>
+#include <boost/range/combine.hpp>
+#include <boost/foreach.hpp>
+#include <boost/graph/graph_utility.hpp>
+#include <boost/graph/incremental_components.hpp>
+#include <boost/pending/disjoint_sets.hpp>
+
+struct EdgeProperties {
+  unsigned index;
+};
+
+typedef boost::adjacency_list<boost::listS, boost::vecS, boost::undirectedS, boost::no_property, EdgeProperties> Graph;
+typedef boost::graph_traits<Graph>::vertex_descriptor Vertex;
+typedef boost::graph_traits<Graph>::vertices_size_type VertexIndex;
+
 class network {
   public:
     const graph& G;
+
+    Graph bG;
+    Graph dG;
+    std::vector<VertexIndex> rank;
+    std::vector<Vertex> parent;
+    boost::disjoint_sets<VertexIndex*, Vertex*> ds;
+    std::unordered_map<std::array<unsigned, 2>, bool> seen_pairs;
+
     std::vector<bool> fuses;
+    std::vector<bool> backbone;
     std::vector<long double> thresholds;
 
-    network(const graph&);
+    problem px;
+    problem py;
+
+    network(const graph&, cholmod_common*);
     network(const network&);
 
     void set_thresholds(double, std::mt19937&);
     void fracture(hooks&, bool one_axis = false);
+    void update_backbone(const std::vector<double>& c);
 
-    virtual void break_edge(unsigned e, bool unbreak = false) {fuses[e] = !unbreak;};
+    void break_edge(unsigned, bool unbreak = false);
     virtual current_info get_current_info() {current_info empty; return empty;};
 };
 
 class fuse_network : public network {
   private:
     double weight;
-    problem ohm_x;
-    problem ohm_y;
 
   public:
     fuse_network(const graph&, cholmod_common*, double weight = 1.0);
     fuse_network(const fuse_network&);
 
-    void break_edge(unsigned, bool unbreak = false) override;
     current_info get_current_info() override;
 };
 
 class elastic_network : public network {
   private:
     double weight;
-    problem hook_x;
-    problem hook_y;
 
   public:
     elastic_network(const graph&, cholmod_common*, double weight = 0.5);
     elastic_network(const elastic_network&);
 
-    void break_edge(unsigned, bool unbreak = false) override;
     current_info get_current_info() override;
 };
 
 class percolation_network : public network {
-  private:
-    problem px;
-    problem py;
-
   public:
     percolation_network(const graph&, cholmod_common*);
     percolation_network(const percolation_network&);
 
-    void break_edge(unsigned, bool unbreak = false) override;
     current_info get_current_info() override;
 };
 
diff --git a/lib/include/problem.hpp b/lib/include/problem.hpp
index c2c9e09..740751d 100644
--- a/lib/include/problem.hpp
+++ b/lib/include/problem.hpp
@@ -28,11 +28,13 @@ class problem {
     cholmod_common* c;
 
   public:
+    current_info sol;
+
     problem(const graph&, unsigned, cholmod_common*);
     problem(const graph&, unsigned, cholmod_sparse*, cholmod_common*);
     problem(const problem&);
     ~problem();
-    current_info solve(std::vector<bool>& fuses);
+    void solve(std::vector<bool>& fuses);
     void break_edge(unsigned, bool unbreak = false);
 };
 
-- 
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