Add in some timing logs. Cell rendering is fine.

Author: dabreegster

backend/Cargo.lock

@@ -24,3 +24,4 @@ web-sys = { version = "0.3.64", features = ["console"] }
 bincode = "1.3.3"
 contour = "0.12.0"
 rstar = "0.11.0"
+web-time = "1.0.0"

backend/Cargo.toml

@@ -5,6 +5,7 @@ use geo::{
     BooleanOps, Contains, EuclideanDistance, EuclideanLength, Intersects, MultiLineString, Polygon,
 };
 use geojson::{Feature, FeatureCollection, Geometry};
+use web_time::Instant;
 
 use crate::render_cells::Color;
 use crate::{Cell, IntersectionID, MapModel, RenderCells, RoadID, Shortcuts};
@@ -82,13 +83,20 @@ impl Neighbourhood {
     }
 
     pub fn after_edit(&mut self, map: &MapModel) {
+        let t1 = Instant::now();
         let cells = Cell::find_all(map, self);
+        let t2 = Instant::now();
         let render_cells = RenderCells::new(map, self, &cells);
+        let t3 = Instant::now();
         let shortcuts = Shortcuts::new(map, self);
+        let t4 = Instant::now();
         self.derived = Some(DerivedNeighbourhoodState {
             render_cells,
             shortcuts,
         });
+        if false {
+            info!("Neighbourhood edited. Finding cells took {:?}, rendering cells took {:?}, finding shortcuts took {:?}", t2 - t1, t3 - t2, t4 - t3);
+        }
     }
 
     pub fn to_gj(&self, map: &MapModel) -> FeatureCollection {

backend/src/neighbourhood.rs

@@ -119,6 +119,8 @@ fn finalize(main_grid: Grid<Option<usize>>, cell_colors: Vec<Color>, bounds: Rec
         // contour will find where the grid is >= a threshold value. The main grid has one
         // number per cell, so we can't directly use it -- the area >= some cell index is
         // meaningless. Per cell, make a new grid that just has that cell.
+        //
+        // TODO Try isobands
         let grid: Grid<f64> = Grid {
             width: main_grid.width,
             height: main_grid.height,