1 files changed, 13 insertions, 1 deletions
diff --git a/internal/ceres/coordinate_descent_minimizer.h b/internal/ceres/coordinate_descent_minimizer.h
index 424acda..e324b38 100644
--- a/internal/ceres/coordinate_descent_minimizer.h
+++ b/internal/ceres/coordinate_descent_minimizer.h
@@ -37,12 +37,13 @@
 #include "ceres/evaluator.h"
 #include "ceres/minimizer.h"
 #include "ceres/problem_impl.h"
-#include "ceres/program.h"
 #include "ceres/solver.h"
 
 namespace ceres {
 namespace internal {
 
+class Program;
+
 // Given a Program, and a ParameterBlockOrdering which partitions
 // (non-exhaustively) the Hessian matrix into independent sets,
 // perform coordinate descent on the parameter blocks in the
@@ -66,6 +67,17 @@ class CoordinateDescentMinimizer : public Minimizer {
                         double* parameters,
                         Solver::Summary* summary);
 
+  // Verify that each group in the ordering forms an independent set.
+  static bool IsOrderingValid(const Program& program,
+                              const ParameterBlockOrdering& ordering,
+                              string* message);
+
+  // Find a recursive decomposition of the Hessian matrix as a set
+  // of independent sets of decreasing size and invert it. This
+  // seems to work better in practice, i.e., Cameras before
+  // points.
+  static ParameterBlockOrdering* CreateOrdering(const Program& program);
+
  private:
   void Solve(Program* program,
              LinearSolver* linear_solver,