From cf1226ca33d27100ec42b1611713d874bd4343f1 Mon Sep 17 00:00:00 2001
From: Bryan Housel <bryan@mapbox.com>
Date: Wed, 7 Feb 2018 17:00:22 -0500
Subject: [PATCH] Better calc of turn arrow placmenet along short segments

---
 modules/svg/turns.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/modules/svg/turns.js b/modules/svg/turns.js
index 77c413563..62c43aa03 100644
--- a/modules/svg/turns.js
+++ b/modules/svg/turns.js
@@ -1,4 +1,4 @@
-import { geoAngle } from '../geo/index';
+import { geoAngle, geoVecLength } from '../geo';
 
 
 export function svgTurns(projection) {
@@ -67,7 +67,9 @@ export function svgTurns(projection) {
                 var v = graph.entity(turn.to.vertex);
                 var a = geoAngle(v, t, projection);
                 var p = projection(v.loc);
-                var r = turn.u ? 0 : 60;
+                var q = projection(t.loc);
+                var mid = geoVecLength(p, q) / 2;
+                var r = turn.u ? 0 : Math.min(mid, 60);
 
                 return 'translate(' + (r * Math.cos(a) + p[0]) + ',' + (r * Math.sin(a) + p[1]) + ') ' +
                     'rotate(' + a * 180 / Math.PI + ')';