From c89b9c107cc8f6ebcfd42a17906bf6f0ec72d49c Mon Sep 17 00:00:00 2001
From: math1985 <info@matthijsmelissen.nl>
Date: Thu, 14 Sep 2017 23:32:31 +0200
Subject: [PATCH] Make regional admin borders solid instead of dashed

Due to the coastline paradox, dashed lines for borders don't work
well on low-zoom: strongly curved borders appear solid instead of
dashed. Also, solid dashes generally are too busy for the crowded
z5-7.

This PR makes regional boundaries (admin_level=4) solid instead of
dashed up to z9.

To prevent the borders from getting too strong, they are also made
thinner.
---
 admin.mss | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/admin.mss b/admin.mss
index 50908455ef..92d8bced79 100644
--- a/admin.mss
+++ b/admin.mss
@@ -65,28 +65,28 @@ overlapping borders correctly.
       line-color: @admin-boundaries;
       line-join: bevel;
       line-width: 0.4;
-      line-dasharray: 4,3;
       line-clip: false;
     }
     [zoom >= 5] {
-      background/line-width: 0.6;
-      line-width: 0.6;
+      background/line-width: 0.5;
+      line-width: 0.5;
     }
     [zoom >= 6] {
-      background/line-width: 0.8;
-      line-width: 0.8;
+      background/line-width: 0.6;
+      line-width: 0.6;
     }
     [zoom >= 7] {
-      background/line-width: 1;
-      line-width: 1;
+      background/line-width: 0.7;
+      line-width: 0.7;
     }
     [zoom >= 9] {
-      background/line-width: 1.8;
-      line-width: 1.8;
+      background/line-width: 1;
+      line-width: 1;
     }
     [zoom >= 10] {
       background/line-width: 2.5;
       line-width: 2.5;
+      line-dasharray: 4,3;
     }
     [zoom >= 12] {
       background/line-width: 3;