From 8a6109a78a6f7b9e9585cd89e8a10d1f626b3af1 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Tue, 17 Jul 2018 22:37:57 -0400
Subject: made many changes to implement alternate reflection generators, this
 is broken

---
 src/wolff_heisenberg.cpp | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

(limited to 'src/wolff_heisenberg.cpp')

diff --git a/src/wolff_heisenberg.cpp b/src/wolff_heisenberg.cpp
index aed4156..83ea503 100644
--- a/src/wolff_heisenberg.cpp
+++ b/src/wolff_heisenberg.cpp
@@ -13,12 +13,14 @@ int main(int argc, char *argv[]) {
   double *H = (double *)calloc(MAX_Q, sizeof(double));
 
   bool silent = false;
+  bool use_pert = false;
 
   int opt;
   q_t J_ind = 0;
   q_t H_ind = 0;
+  double epsilon = 1;
 
-  while ((opt = getopt(argc, argv, "N:q:D:L:T:J:H:s")) != -1) {
+  while ((opt = getopt(argc, argv, "N:q:D:L:T:J:H:spe:")) != -1) {
     switch (opt) {
     case 'N': // number of steps
       N = (count_t)atof(optarg);
@@ -39,6 +41,12 @@ int main(int argc, char *argv[]) {
     case 's': // don't print anything during simulation. speeds up slightly
       silent = true;
       break;
+    case 'p':
+      use_pert = true;
+      break;
+    case 'e':
+      epsilon = atof(optarg);
+      break;
     default:
       exit(EXIT_FAILURE);
     }
@@ -52,6 +60,18 @@ int main(int argc, char *argv[]) {
     timestamp = spec.tv_sec*1000000000LL + spec.tv_nsec;
   }
 
+  std::function <orthogonal_t <3, double>(gsl_rng *, const state_t <orthogonal_t <3, double>, vector_t <3, double>> *)> gen_R;
+
+  const char *pert_type;
+
+  if (use_pert) {
+    gen_R = std::bind(generate_rotation_perturbation <3>, std::placeholders::_1, std::placeholders::_2, epsilon);
+    pert_type = "PERTURB";
+  } else {
+    gen_R = generate_rotation_uniform <3>;
+    pert_type = "UNIFORM";
+  }
+
   FILE *outfile_info = fopen("wolff_metadata.txt", "a");
 
   fprintf(outfile_info, "<| \"ID\" -> %lu, \"MODEL\" -> \"HEISENBERG\", \"q\" -> 3, \"D\" -> %" PRID ", \"L\" -> %" PRIL ", \"NV\" -> %" PRIv ", \"NE\" -> %" PRIv ", \"T\" -> %.15f, \"H\" -> {", timestamp, D, L, L * L, D * L * L, T);
@@ -63,12 +83,12 @@ int main(int argc, char *argv[]) {
     }
   }
 
-  fprintf(outfile_info, "} |>\n");
+  fprintf(outfile_info, "}, \"GENERATOR\" -> \"%s\", \"EPS\" -> %g |>\n", pert_type, epsilon);
 
   fclose(outfile_info);
 
 
-  wolff <orthogonal_t <3, double>, vector_t <3, double>> (N, D, L, T, dot <3, double>, std::bind(H_vector <3, double>, std::placeholders::_1, H), timestamp, silent);
+  wolff <orthogonal_t <3, double>, vector_t <3, double>> (N, D, L, T, dot <3, double>, std::bind(H_vector <3, double>, std::placeholders::_1, H), gen_R, timestamp, silent);
 
   free(H);
 
-- 
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