Add more todo items

diff --git a/doc/todo.html b/doc/todo.html
index 3f832b77e1a832e5247a142b16d23b7447a3ef78..73076023063325ca18ef2aa9088cb1d6991dde72 100755 (executable)
--- a/doc/todo.html
+++ b/doc/todo.html
@@ -93,6 +93,10 @@ Display of large-graphs (hair ball problem)
  - edge bundles
 Venn diagrams 
 Integration of geographic info - maps
+Aspect ratio in dot with clusters
+Dot with fixed width
+Crossing minimization with some nodes in columns
+Adjust graph to allow no edge-node overlap with line segment edges
 </pre>
 <H2>Done</H2>
 <pre>