From 21d9d8aa0cabb393225cc2295baf9b4ab7ae3822 Mon Sep 17 00:00:00 2001
From: Richard Roberts <richard.jw.roberts@gmail.com>
Date: Mon, 3 Sep 2012 19:25:27 +0000
Subject: [PATCH] Print ordering with multiple entries per line for more
 compact printout

---
 gtsam/nonlinear/Ordering.cpp | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/gtsam/nonlinear/Ordering.cpp b/gtsam/nonlinear/Ordering.cpp
index 9f99948a4..b445af506 100644
--- a/gtsam/nonlinear/Ordering.cpp
+++ b/gtsam/nonlinear/Ordering.cpp
@@ -44,10 +44,23 @@ void Ordering::print(const string& str, const KeyFormatter& keyFormatter) const
   cout << str;
 	// Print ordering in index order
 	Ordering::InvertedMap inverted = this->invert();
-	cout << "key (zero-based order)\n";
+	// Print the ordering with varsPerLine ordering entries printed on each line,
+	// for compactness.
+	static const size_t varsPerLine = 10;
+	bool endedOnNewline = false;
 	BOOST_FOREACH(const Ordering::InvertedMap::value_type& index_key, inverted) {
-		cout << keyFormatter(index_key.second) << " (" << index_key.first << ")\n";
+		if(index_key.first % varsPerLine != 0)
+			cout << ", ";
+		cout << index_key.first << ":" << keyFormatter(index_key.second);
+		if(index_key.first % varsPerLine == varsPerLine - 1) {
+			cout << "\n";
+			endedOnNewline = true;
+		} else {
+			endedOnNewline = false;
+		}
 	}
+	if(!endedOnNewline)
+		cout << "\n";
 	cout.flush();
 }