Add an all-pairs OD pattern

od2net/src/config.rs

@@ -55,6 +55,9 @@ pub enum ODPattern {
     },
     /// Just read GeoJSON LineStrings from this path
     LineStrings(String),
+    /// One trip from every intersection to every other intersection. This is likely a very
+    /// unrealistic pattern.
+    AllPairsIntersections,
 }
 
 #[derive(Clone, PartialEq, Serialize, Deserialize)]

od2net/src/main.rs

@@ -103,6 +103,7 @@ fn main() -> Result<()> {
     let requests = od2net::od::generate_requests(
         &config.requests,
         format!("{directory}/input"),
+        &network,
         args.rng_seed,
         &mut timer,
     )?;

od2net/src/od.rs

@@ -11,12 +11,14 @@ use rstar::{RTree, AABB};
 use serde::Deserialize;
 
 use super::config::{ODPattern, Requests};
+use super::network::Network;
 use super::requests::Request;
 use super::timer::Timer;
 
 pub fn generate_requests(
     config: &Requests,
     input_directory: String,
+    network: &Network,
     rng_seed: u64,
     timer: &mut Timer,
 ) -> Result<Vec<Request>> {
@@ -177,6 +179,15 @@ pub fn generate_requests(
             requests = Request::load_from_geojson(format!("{input_directory}/{path}"))?;
             timer.stop();
         }
+        ODPattern::AllPairsIntersections => {
+            for from in network.intersections.values() {
+                let (x1, y1) = from.to_degrees();
+                for to in network.intersections.values() {
+                    let (x2, y2) = to.to_degrees();
+                    requests.push(Request { x1, y1, x2, y2 });
+                }
+            }
+        }
     }
 
     Ok(requests)