added a tree class to keep track of dirty tiles

2011-10-30 00:14:03 -04:00
parent 96cf62bd14
commit ab53a9bd3e
3 changed files with 123 additions and 4 deletions
--- a/overviewer.py
+++ b/overviewer.py
@@ -379,7 +379,7 @@ dir but you forgot to put quotes around the directory, since it contains spaces.
    # Create the quadtrees. There is one quadtree per rendermode requested, and
    # therefore, per output directory hierarchy of tiles. Each quadtree
    # individually computes its depth and size. The constructor computes the
-    # depth of the tree, while the go() method re-arranges tiles if teh current
+    # depth of the tree, while the go() method re-arranges tiles if the current
    # depth differs from the computed depth.
    q = []
    qtree_args = {'depth' : options.zoom,