commit b23fd4e6675fc76761a63bf76e80696a5a69dd35
author Sameer Agarwal <sameeragarwal@google.com> Tue Sep 25 09:04:41 2012 -0700
committer Sameer Agarwal <sameeragarwal@google.com> Tue Sep 25 10:14:08 2012 -0700
tree 95b4e361b46381a8ad1ff3c91901583c0d8c8a7f
parent d3ace02d1376ceb4b40f0852426fe770a973524b

Add IterationSummary::step_is_nonmonotonic.

So that IterationCallback objects know the kind of step that they
are dealing with.

Change-Id: I7782b211af882bd7b67307c3c23d8021cb56e8ab

internal/ceres/trust_region_minimizer.cc

diff --git a/internal/ceres/trust_region_minimizer.cc b/internal/ceres/trust_region_minimizer.cc
index 9f93deb..dd49f9e 100644
--- a/internal/ceres/trust_region_minimizer.cc
+++ b/internal/ceres/trust_region_minimizer.cc
@@ -397,6 +397,7 @@
         accumulated_candidate_model_cost_change += model_cost_change;
         accumulated_reference_model_cost_change += model_cost_change;
         if (relative_decrease <= options_.min_relative_decrease) {
+          iteration_summary.step_is_nonmonotonic = true;
           VLOG(2) << "Non-monotonic step! "
                   << " relative_decrease: " << relative_decrease
                   << " historical_relative_decrease: "