From 58d4e2868b93daafc6f2e305b40095c804c1b0d1 Mon Sep 17 00:00:00 2001
From: Michael Kirk <michael.code@endoftheworl.de>
Date: Mon, 7 Oct 2024 15:57:31 -0700
Subject: [PATCH] fixup: impl Interpolate for CoordFloat, not just f64

This was a copy/paste error from the impl on Geodesic which truly does
only support f64 - for Haversine and Rhumb though, we can support any
CoordFloat+FromPrimitive
---
 .../line_measures/metric_spaces/haversine.rs     | 16 ++++++----------
 .../line_measures/metric_spaces/rhumb.rs         | 16 ++++++----------
 2 files changed, 12 insertions(+), 20 deletions(-)

diff --git a/geo/src/algorithm/line_measures/metric_spaces/haversine.rs b/geo/src/algorithm/line_measures/metric_spaces/haversine.rs
index e394e89422..50186a2a5c 100644
--- a/geo/src/algorithm/line_measures/metric_spaces/haversine.rs
+++ b/geo/src/algorithm/line_measures/metric_spaces/haversine.rs
@@ -126,7 +126,7 @@ impl<F: CoordFloat + FromPrimitive> Distance<F, Point<F>, Point<F>> for Haversin
 /// Interpolate Point(s) along a [great circle].
 ///
 /// [great circle]: https://en.wikipedia.org/wiki/Great_circle
-impl InterpolatePoint<f64> for Haversine {
+impl<F: CoordFloat + FromPrimitive> InterpolatePoint<F> for Haversine {
     /// Returns a new Point along a [great circle] between two existing points.
     ///
     /// # Examples
@@ -150,11 +150,7 @@ impl InterpolatePoint<f64> for Haversine {
     /// ```
     ///
     /// [great circle]: https://en.wikipedia.org/wiki/Great_circle
-    fn point_at_ratio_between(
-        start: Point<f64>,
-        end: Point<f64>,
-        ratio_from_start: f64,
-    ) -> Point<f64> {
+    fn point_at_ratio_between(start: Point<F>, end: Point<F>, ratio_from_start: F) -> Point<F> {
         crate::algorithm::HaversineIntermediate::haversine_intermediate(
             &start,
             &end,
@@ -173,11 +169,11 @@ impl InterpolatePoint<f64> for Haversine {
     /// [great circle]: https://en.wikipedia.org/wiki/Great_circle
     /// [haversine formula]: https://en.wikipedia.org/wiki/Haversine_formula
     fn points_along_line(
-        start: Point<f64>,
-        end: Point<f64>,
-        max_distance: f64,
+        start: Point<F>,
+        end: Point<F>,
+        max_distance: F,
         include_ends: bool,
-    ) -> impl Iterator<Item = Point<f64>> {
+    ) -> impl Iterator<Item = Point<F>> {
         crate::algorithm::HaversineIntermediate::haversine_intermediate_fill(
             &start,
             &end,
diff --git a/geo/src/algorithm/line_measures/metric_spaces/rhumb.rs b/geo/src/algorithm/line_measures/metric_spaces/rhumb.rs
index 5f654c3d7b..a674a376bd 100644
--- a/geo/src/algorithm/line_measures/metric_spaces/rhumb.rs
+++ b/geo/src/algorithm/line_measures/metric_spaces/rhumb.rs
@@ -117,7 +117,7 @@ impl<F: CoordFloat + FromPrimitive> Distance<F, Point<F>, Point<F>> for Rhumb {
 /// Interpolate Point(s) along a [rhumb line].
 ///
 /// [rhumb line]: https://en.wikipedia.org/wiki/Rhumb_line
-impl InterpolatePoint<f64> for Rhumb {
+impl<F: CoordFloat + FromPrimitive> InterpolatePoint<F> for Rhumb {
     /// Returns a new Point along a [rhumb line] between two existing points.
     ///
     /// # Examples
@@ -141,11 +141,7 @@ impl InterpolatePoint<f64> for Rhumb {
     /// ```
     ///
     /// [rhumb line]: https://en.wikipedia.org/wiki/Rhumb_line
-    fn point_at_ratio_between(
-        start: Point<f64>,
-        end: Point<f64>,
-        ratio_from_start: f64,
-    ) -> Point<f64> {
+    fn point_at_ratio_between(start: Point<F>, end: Point<F>, ratio_from_start: F) -> Point<F> {
         crate::algorithm::RhumbIntermediate::rhumb_intermediate(&start, &end, ratio_from_start)
     }
 
@@ -159,11 +155,11 @@ impl InterpolatePoint<f64> for Rhumb {
     ///
     /// [rhumb line]: https://en.wikipedia.org/wiki/Rhumb_line
     fn points_along_line(
-        start: Point<f64>,
-        end: Point<f64>,
-        max_distance: f64,
+        start: Point<F>,
+        end: Point<F>,
+        max_distance: F,
         include_ends: bool,
-    ) -> impl Iterator<Item = Point<f64>> {
+    ) -> impl Iterator<Item = Point<F>> {
         crate::algorithm::RhumbIntermediate::rhumb_intermediate_fill(
             &start,
             &end,