Add more TODO items

2 files changed, 4 insertions, 0 deletions

diff --git a/svgbob/TODO.md b/svgbob/TODO.md
index 5907a96..0e8ce6b 100644
--- a/svgbob/TODO.md
+++ b/svgbob/TODO.md
@@ -12,3 +12,4 @@
 - [x] Add enhance circle, detect circles then enhance it.
 - [ ] Add test cases
 - [ ] Re-implement the escape string with double quotes.
+- [ ] Use perfect hashmap [phf](https://crates.io/crates/phf) to efficiently build the maps(unicode_map, circle_map, ascii_map) at compile time.
diff --git a/svgbob/src/map/circle_map.rs b/svgbob/src/map/circle_map.rs
index b2388e2..5367007 100644
--- a/svgbob/src/map/circle_map.rs
+++ b/svgbob/src/map/circle_map.rs
@@ -283,6 +283,9 @@ lazy_static! {
                 let cb = CellBuffer::from(*art);
                 let mut spans = cb.group_adjacents();
                 assert_eq!(spans.len(), 1);
+                //TODO: span localize here affects the center of the arc,
+                //need to use the exact center used in the circle here
+                //Need to fix the calculation here involving the span
                 let span = spans.remove(0).localize();
                 let (tl_bounds, br_bounds) = span.bounds().expect("There should be bounds");