From 4b33e5b532de8c54c6461b9b6b4b509f8e3561f5 Mon Sep 17 00:00:00 2001
From: Joe Neeman <joeneeman@gmail.com>
Date: Fri, 24 Jul 2009 13:39:29 -0700
Subject: [PATCH] Add Skyline::clear()

---
 lily/include/skyline.hh | 1 +
 lily/skyline.cc         | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/lily/include/skyline.hh b/lily/include/skyline.hh
index 26830b92c9..38d922c6a5 100644
--- a/lily/include/skyline.hh
+++ b/lily/include/skyline.hh
@@ -67,6 +67,7 @@ public:
   Real height (Real airplane) const;
   Real max_height () const;
   void set_minimum_height (Real height);
+  void clear ();
   bool is_empty () const;
 };
 
diff --git a/lily/skyline.cc b/lily/skyline.cc
index a3047a98bb..e733cfd080 100644
--- a/lily/skyline.cc
+++ b/lily/skyline.cc
@@ -542,6 +542,12 @@ Skyline::is_empty () const
   return b.end_ == infinity_f && b.y_intercept_ == -infinity_f;
 }
 
+void
+Skyline::clear ()
+{
+  buildings_.clear ();
+  empty_skyline (&buildings_);
+}
 
 /****************************************************************/
 
-- 
2.39.5