diff options
| -rw-r--r-- | altosui/AltosSiteMap.java | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/altosui/AltosSiteMap.java b/altosui/AltosSiteMap.java index c258b3e5..63995c40 100644 --- a/altosui/AltosSiteMap.java +++ b/altosui/AltosSiteMap.java @@ -31,6 +31,7 @@ import java.util.prefs.*; import java.lang.Math; import java.awt.geom.Point2D; import java.awt.geom.Line2D; +import java.util.concurrent.*; public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { // preferred vertical step in a tile in naut. miles @@ -110,7 +111,7 @@ public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { return latlng(pt, scale_x, scale_y); } - HashMap<Point,AltosSiteMapTile> mapTiles = new HashMap<Point,AltosSiteMapTile>(); + ConcurrentHashMap<Point,AltosSiteMapTile> mapTiles = new ConcurrentHashMap<Point,AltosSiteMapTile>(); Point2D.Double centre; private Point2D.Double tileCoordOffset(Point p) { |