From afe06c86154ea77b61f9440b529f061cf04042e3 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 10 May 2022 21:11:04 +0100
Subject: [PATCH] impl Mean for f64

We'll want this to calculate middles of SVGs.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 base/geometry.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/base/geometry.rs b/base/geometry.rs
index 2733632e..6983a3a0 100644
--- a/base/geometry.rs
+++ b/base/geometry.rs
@@ -85,6 +85,9 @@ pub trait Mean { fn mean(&self, other: &Self) -> Self; }
 impl Mean for i32 { fn mean(&self, other: &Self) -> Self {
   ((*self as i64 + *other as i64) / 2) as i32
 } }
+impl Mean for f64 { fn mean(&self, other: &Self) -> Self {
+  self * 0.5 + other * 0.5
+} }
 
 //---------- Pos ----------
 
-- 
2.30.2