diff --git a/experiments/2025-03-18/src/geometry/curve.rs b/experiments/2025-03-18/src/geometry/curve.rs
index f7565d9e1..9f3898c1c 100644
--- a/experiments/2025-03-18/src/geometry/curve.rs
+++ b/experiments/2025-03-18/src/geometry/curve.rs
@@ -1,10 +1,15 @@
-use fj_math::{Line, Transform, Vector};
+use fj_math::{Line, Point, Transform, Vector};
 
 pub trait CurveGeometry {
+    fn point_from_local(&self, point: Point<1>) -> Point<3>;
     fn translate(&self, offset: Vector<3>) -> Box<dyn CurveGeometry>;
 }
 
 impl CurveGeometry for Line<3> {
+    fn point_from_local(&self, point: Point<1>) -> Point<3> {
+        self.point_from_line_coords(point)
+    }
+
     fn translate(&self, offset: Vector<3>) -> Box<dyn CurveGeometry> {
         let translated = self.transform(&Transform::translation(offset));
         Box::new(translated)
diff --git a/experiments/2025-03-18/src/geometry/swept_curve.rs b/experiments/2025-03-18/src/geometry/swept_curve.rs
index 5f385b00c..c29f777b8 100644
--- a/experiments/2025-03-18/src/geometry/swept_curve.rs
+++ b/experiments/2025-03-18/src/geometry/swept_curve.rs
@@ -1,5 +1,7 @@
 use fj_math::{Line, Point, Transform, Vector};
 
+use super::CurveGeometry;
+
 pub struct SweptCurve {
     pub curve: Line<3>,
     pub path: Vector<3>,
@@ -29,7 +31,7 @@ impl SweptCurve {
 
     pub fn point_from_local(&self, point: impl Into<Point<2>>) -> Point<3> {
         let [u, v] = point.into().coords.components;
-        self.curve.point_from_line_coords(Point::from([u])) + self.v() * v
+        self.curve.point_from_local(Point::from([u])) + self.v() * v
     }
 
     pub fn project_point(&self, point: impl Into<Point<3>>) -> Point<2> {