From 1cd41b27808da0fe558cfe31dfc370a71ea2dc50 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Fri, 19 Apr 2019 13:31:16 -0400
Subject: added support for rotating a lattice

---
 lib/include/graph.hpp   |  1 +
 lib/src/graph.cpp       | 39 +++++++++++++++++++++++++++++++++++++--
 src/sample.cpp          |  8 ++++----
 src/sample_fracture.cpp |  7 +++++++
 4 files changed, 49 insertions(+), 6 deletions(-)

diff --git a/lib/include/graph.hpp b/lib/include/graph.hpp
index 032a4d1..1714dc2 100644
--- a/lib/include/graph.hpp
+++ b/lib/include/graph.hpp
@@ -42,5 +42,6 @@ class graph {
     graph(unsigned n, double a, std::mt19937& rng);
 
     void helper(unsigned n, std::mt19937& rng);
+    graph const rotate();
 };
 
diff --git a/lib/src/graph.cpp b/lib/src/graph.cpp
index 364f339..974d3b3 100644
--- a/lib/src/graph.cpp
+++ b/lib/src/graph.cpp
@@ -157,9 +157,8 @@ graph::graph(unsigned n, double a, std::mt19937& rng) {
   this->helper(n, rng);
 }
 
-void graph::helper(unsigned n, std::mt19937& rng) {
+void graph::helper(unsigned nv, std::mt19937& rng) {
   std::uniform_real_distribution<double> d(0.0, 1.0);
-  unsigned nv = n;
   vertices.resize(nv);
 
   // the coordinates of the lattice, from which a delaunay triangulation
@@ -363,3 +362,39 @@ void graph::helper(unsigned n, std::mt19937& rng) {
   jcv_diagram_free(&diagram);
 }
 
+graph::coordinate reverse(const graph::coordinate &x) {
+  return {x.y, x.x};
+}
+
+graph const graph::rotate() {
+  graph g2(*this);
+
+  for (graph::vertex &v : g2.vertices) {
+    v.r = reverse(v.r);
+    for (graph::coordinate &r : v.polygon) {
+      r = reverse(r);
+    }
+  }
+
+  for (graph::edge &e : g2.edges) {
+    e.r = reverse(e.r);
+    e.crossings = {e.crossings[1], e.crossings[0]};
+  }
+
+  for (graph::vertex &v : g2.dual_vertices) {
+    v.r = reverse(v.r);
+    for (graph::coordinate &r : v.polygon) {
+      r = reverse(r);
+    }
+  }
+
+  for (graph::edge &e : g2.dual_edges) {
+    e.r = reverse(e.r);
+    e.crossings = {e.crossings[1], e.crossings[0]};
+  }
+
+  g2.L = reverse(g2.L);
+
+  return g2;
+}
+
diff --git a/src/sample.cpp b/src/sample.cpp
index b8af937..488d20d 100644
--- a/src/sample.cpp
+++ b/src/sample.cpp
@@ -16,25 +16,25 @@ void sample::pre_fracture(const network& n) {
   sample_file << "<|";
   sample_file << "\"vr\"->{";
   for (const graph::vertex &v : n.G.vertices) {
-    sample_file << "{" << v.r.x << "," << v.r.y << "},";
+    sample_file <<std::fixed<< "{" << v.r.x << "," << v.r.y << "},";
   }
   sample_file << "},\"vp\"->{";
   for (const graph::vertex &v : n.G.vertices) {
     sample_file << "{";
     for (const graph::coordinate &r : v.polygon) {
-      sample_file << "{" << r.x << "," << r.y << "},";
+      sample_file <<std::fixed<< "{" << r.x << "," << r.y << "},";
     }
     sample_file << "},";
   }
   sample_file << "},\"ur\"->{";
   for (const graph::vertex &v : n.G.dual_vertices) {
-    sample_file << "{" << v.r.x << "," << v.r.y << "},";
+    sample_file <<std::fixed<< "{" << v.r.x << "," << v.r.y << "},";
   }
   sample_file << "},\"up\"->{";
   for (const graph::vertex &v : n.G.dual_vertices) {
     sample_file << "{";
     for (const graph::coordinate &r : v.polygon) {
-      sample_file << "{" << r.x << "," << r.y << "},";
+      sample_file <<std::fixed<< "{" << r.x << "," << r.y << "},";
     }
     sample_file << "},";
   }
diff --git a/src/sample_fracture.cpp b/src/sample_fracture.cpp
index 42a6a5a..782b3e4 100644
--- a/src/sample_fracture.cpp
+++ b/src/sample_fracture.cpp
@@ -47,6 +47,7 @@ int main(int argc, char* argv[]) {
   CHOL_F(start)(&c);
 
   sample meas(Lx, Ly, beta);
+  //sample meas2(Ly, Lx, beta);
 
   randutils::auto_seed_128 seeds;
   std::mt19937 rng{seeds};
@@ -56,6 +57,12 @@ int main(int argc, char* argv[]) {
     network network(G, &c);
     network.set_thresholds(beta, rng);
     network.fracture(meas);
+
+    /*graph G2 = G.rotate();
+    class network network2(G2, &c);
+    network2.thresholds = network.thresholds;
+    network2.fracture(meas2);
+    */
   }
 
   CHOL_F(finish)(&c);
-- 
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