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-rw-r--r--Makefile5
-rw-r--r--uniform.cpp97
2 files changed, 101 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 84be93f..33c8b6c 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,10 @@ CXX = clang++
LD = ld.lld
LIBS := -lrt
-all: excitation order
+all: excitation order uniform
+
+uniform: uniform.cpp $(BLOSSOM_DIR)/blossom5.o
+ $(CXX) $(CFLAGS) $(BLOSSOM_DIR)/blossom5.o uniform.cpp -o $@
order: order.cpp $(BLOSSOM_DIR)/blossom5.o
$(CXX) $(CFLAGS) $(BLOSSOM_DIR)/blossom5.o order.cpp -o $@
diff --git a/uniform.cpp b/uniform.cpp
new file mode 100644
index 0000000..07d794e
--- /dev/null
+++ b/uniform.cpp
@@ -0,0 +1,97 @@
+#include <functional>
+#include <iostream>
+#include <fstream>
+#include <list>
+
+#include <cmath>
+
+#include "randutils/randutils.hpp"
+#include "pcg-cpp/include/pcg_random.hpp"
+
+using Rng = randutils::random_generator<pcg32>;
+
+class Edge {
+public:
+ unsigned index;
+ std::list<double> weights;
+ double probability;
+
+ Edge() {
+ probability = 0;
+ }
+};
+
+class Face {
+public:
+ std::array<std::reference_wrapper<Edge>, 4> edges;
+
+ Face(Edge& a, Edge& b, Edge& c, Edge& d) : edges({a, b, c, d}) {}
+};
+
+class AztecDiamond {
+public:
+ std::vector<Edge> edges;
+ std::vector<std::vector<Face>> faces;
+
+ AztecDiamond(unsigned n) : edges(pow(2 * n, 2)), faces(n) {
+ for (unsigned i = 0; i < edges.size(); i++) {
+ edges[i].index = i;
+ }
+ for (unsigned i = 1; i <= n; i++) {
+ faces[i - 1].reserve(pow(i, 2));
+ for (unsigned j = 0; j < pow(i, 2); j++) {
+ unsigned x = j % (i);
+ unsigned y = j / (i);
+ unsigned x0 = n - i;
+ unsigned y0 = n - i;
+ faces[i - 1].push_back(Face(
+ edges[2 * n * (y0 + 2 * y) + x0 + 2 * x],
+ edges[2 * n * (y0 + 2 * y) + x0 + 2 * x + 1],
+ edges[2 * n * (y0 + 2 * y + 1) + x0 + 2 * x],
+ edges[2 * n * (y0 + 2 * y + 1) + x0 + 2 * x + 1]
+ ));
+ }
+ }
+ }
+};
+
+int main(int argc, char* argv[]) {
+ unsigned n = 100;
+ unsigned m = 100;
+
+ int opt;
+
+ while ((opt = getopt(argc, argv, "n:m:")) != -1) {
+ switch (opt) {
+ case 'n':
+ n = atoi(optarg);
+ break;
+ case 'm':
+ m = (unsigned)atof(optarg);
+ break;
+ default:
+ exit(1);
+ }
+ }
+
+ Rng r;
+ AztecDiamond a(n);
+
+
+
+ /* For checking if the faces are appropriately defined.
+ for (std::vector<Face>& fs : a.faces) {
+ for (Face& f : fs) {
+ for (Edge& e : f.edges) {
+ unsigned v1 = (1 + (e.index % (2 * n))) / 2 + (n + 1) * ((e.index / 4) / n);
+ unsigned v2 = n * (n + 1) + (e.index % (2 * n)) / 2 + n * (((e.index + 2 * n) / 4) / n);
+
+ std::cout << v1 << " " << v2 << " ";
+ }
+ }
+ std::cout << std::endl;
+ }
+ */
+
+ return 0;
+}