From f8e907f86d6d9ff24925cafcc4ff6433bc624a41 Mon Sep 17 00:00:00 2001
From: Tom Russell <tomalrussell@gmail.com>
Date: Wed, 21 Nov 2018 22:05:40 +0000
Subject: [PATCH] Show building numbers only at high zoom

Closes #132

See https://wiki.openstreetmap.org/wiki/MinScaleDenominator
for scale<->zoom level conversion
---
 app/map_styles/polygon.xml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/app/map_styles/polygon.xml b/app/map_styles/polygon.xml
index 222c741d..13983ca9 100644
--- a/app/map_styles/polygon.xml
+++ b/app/map_styles/polygon.xml
@@ -2,17 +2,25 @@
     <Style name="base_light">
         <Rule>
             <PolygonSymbolizer fill="#cccccc" />
+        </Rule>
+        <Rule>
             <TextSymbolizer face-name="DejaVu Sans Condensed Bold"  fill="#000000">
                 [location_number]
             </TextSymbolizer>
+            <MaxScaleDenominator>5000</MaxScaleDenominator>
+            <MinScaleDenominator>0</MinScaleDenominator>
         </Rule>
     </Style>
     <Style name="base_night">
         <Rule>
             <PolygonSymbolizer fill="#303044" />
+        </Rule>
+        <Rule>
             <TextSymbolizer face-name="DejaVu Sans Condensed Bold" fill="#ffffff">
                 [location_number]
             </TextSymbolizer>
+            <MaxScaleDenominator>5000</MaxScaleDenominator>
+            <MinScaleDenominator>0</MinScaleDenominator>
         </Rule>
     </Style>
     <Style name="highlight">