fix bug in cylindrical projection

If one peak is "left" and one is "right" of north, cylindrical
projection was not able to compute proper viewing parameters.
This is fixed by adjusting alpha angles of known hills to be increasing
with x.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/Hill.H b/src/Hill.H
index ac4917a..d408dc7 100644
--- a/src/Hill.H
+++ b/src/Hill.H
@@ -45,7 +45,8 @@ class Hills {
 			SORT_ALPHA,
 			SORT_PHI,
 			SORT_NAME,
-			SORT_LABEL_Y
+			SORT_LABEL_Y,
+			SORT_X
 		} SortType;
 	
 		Hills();