From 643baba78eb15a685d959aae718ee3eeade2f806 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Fri, 19 Oct 2018 01:26:14 -0400
Subject: big library overhual, fixed all examples, added documentation with
 sphinx

---
 lib/src/graph.cpp | 79 +++++++++++++++++++++----------------------------------
 1 file changed, 30 insertions(+), 49 deletions(-)

(limited to 'lib/src/graph.cpp')

diff --git a/lib/src/graph.cpp b/lib/src/graph.cpp
index b42aa78..4f91be4 100644
--- a/lib/src/graph.cpp
+++ b/lib/src/graph.cpp
@@ -1,74 +1,55 @@
 
 #include <wolff/graph.hpp>
 
-graph_t::graph_t(D_t D, L_t L, lattice_t lat) {
-  switch (lat) {
-    case SQUARE_LATTICE: {
-        nv = pow(L, D);
-        ne = D * nv;
+namespace wolff {
 
-        adj.resize(nv);
-        coordinate.resize(nv);
-
-        for (std::vector<v_t> adj_i : adj) {
-          adj_i.reserve(2 * D);
-        }
-
-        for (v_t i = 0; i < nv; i++) {
-          coordinate[i].resize(D);
-          for (D_t j = 0; j < D; j++) {
-            coordinate[i][j] = (i / (v_t)pow(L, D - j - 1)) % L;
-
-            adj[i].push_back(pow(L, j + 1) * (i / ((v_t)pow(L, j + 1))) + fmod(i + pow(L, j), pow(L, j + 1)));
-            adj[i].push_back(pow(L, j + 1) * (i / ((v_t)pow(L, j + 1))) + fmod(pow(L, j+1) + i - pow(L, j), pow(L, j + 1)));
-          }
-        }
-        break;
-      }
-    case DIAGONAL_LATTICE: {
-        nv = D * pow(L, D);
-        ne = 2 * nv;
+graph::graph() {
+  D = 0;
+  L = 0;
+  nv = 0;
+  ne = 0;
+}
 
-        adj.resize(nv);
-        coordinate.resize(nv);
+graph::graph(D_t D, L_t L) : D(D), L(L) {
+  nv = pow(L, D);
+  ne = D * nv;
 
-        for (std::vector<v_t> adj_i : adj) {
-          adj_i.reserve(4 * (D - 1));
-        }
+  adjacency.resize(nv);
+  coordinate.resize(nv);
 
-        for (D_t i = 0; i < D; i++) {
-          v_t sb = i * pow(L, D);
+  for (std::vector<v_t> adj_i : adjacency) {
+    adj_i.reserve(2 * D);
+  }
 
-          for (v_t j = 0; j < pow(L, D); j++) {
-            v_t vc = sb + j;
+  for (v_t i = 0; i < nv; i++) {
+    coordinate[i].resize(D);
+    for (D_t j = 0; j < D; j++) {
+      coordinate[i][j] = (i / (v_t)pow(L, D - j - 1)) % L;
 
-            adj[vc].push_back(((i + 1) % D) * pow(L, D) + j);
-            adj[vc].push_back(((i + 1) % D) * pow(L, D) + pow(L, D - 1) * (j / (v_t)pow(L, D - 1)) + (j + 1 - 2 * (i % 2)) % L);
-            adj[vc].push_back(((i + 1) % D) * pow(L, D) + pow(L, D - 1) * ((L + (j/ (v_t)pow(L, D - 1)) - 1 + 2 * (i % 2)) % L) + (j - i) % L);
-            adj[vc].push_back(((i + 1) % D) * pow(L, D) + pow(L, D - 1) * ((L + (j/ (v_t)pow(L, D - 1)) - 1 + 2 * (i % 2)) % L) + (j + 1 - i) % L);
-          }
-        }
-        break;
-      }
+      adjacency[i].push_back(pow(L, j + 1) * (i / ((v_t)pow(L, j + 1))) + fmod(i + pow(L, j), pow(L, j + 1)));
+      adjacency[i].push_back(pow(L, j + 1) * (i / ((v_t)pow(L, j + 1))) + fmod(pow(L, j+1) + i - pow(L, j), pow(L, j + 1)));
+    }
   }
 }
 
-void graph_t::add_ext() {
-  for (std::vector<v_t>& adj_i : adj) {
+void graph::add_ghost() {
+  for (std::vector<v_t>& adj_i : adjacency) {
     adj_i.push_back(nv);
   }
 
-  adj.resize(nv + 1);
+  adjacency.resize(nv + 1);
   coordinate.resize(nv + 1);
-  adj[nv].reserve(nv);
+  adjacency[nv].reserve(nv);
 
   for (v_t i = 0; i < nv; i++) {
-    adj[nv].push_back(i);
+    adjacency[nv].push_back(i);
   }
 
   coordinate[nv].resize(coordinate[0].size());
 
   ne += nv;
-  nv += 1;
+  nv++;
+}
+
 }
 
-- 
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