Marching: fix static integration process

MarchingCubes.cpp

@@ -2,10 +2,6 @@
 
 #include <cassert>
 
-const std::vector<MarchingCubes::CubeTri>
-    MarchingCubes::edges_of_intersection[256] = {
-    };
-
 MarchingCubes::MarchingCubes(
         const ImplicitSurface& surface,
         const Cuboid& box,

tools/gen_marching_cubes_conf.py

@@ -16,6 +16,8 @@ PREAMBLE = """
 typedef MarchingCubes::CubeTri Tri;
 typedef std::vector<Tri> TriVect;
 typedef MarchingCubes::CubeEdge Edge;
+
+const TriVect MarchingCubes::edges_of_intersection[] = {
 """
 
 
@@ -206,7 +208,6 @@ def gen_index(base_cases):
 def pretty_print(index):
     output = ""
     output += PREAMBLE
-    output += "static const TriVect edges_of_intersection[256] = {\n"
 
     for (case_id, case) in enumerate(index):
         output += "\tTriVect({\n"