From 2c753ac87c99a31620af148544674ebb8eeebdb8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ko=C4=87?= <daniel@xn--ko-wla.pl>
Date: Fri, 29 Sep 2017 01:41:18 +0200
Subject: [PATCH] Start showing water areas from z0

---
 project.mml | 10 +++++-----
 water.mss   |  5 +++--
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/project.mml b/project.mml
index ddc9d694e7..64ea87b198 100644
--- a/project.mml
+++ b/project.mml
@@ -237,11 +237,11 @@ Layer:
               OR landuse IN ('reservoir', 'basin')
               OR "natural" IN ('water', 'glacier'))
             AND building IS NULL
-            AND way_area > 0.01*!pixel_width!::real*!pixel_height!::real
+            AND way_area > 1*!pixel_width!::real*!pixel_height!::real
           ORDER BY COALESCE(layer,0), way_area DESC
         ) AS water_areas
     properties:
-      minzoom: 4
+      minzoom: 0
   - id: landcover-area-symbols
     geometry: polygon
     <<: *extents
@@ -1879,7 +1879,7 @@ Layer:
             way_area/NULLIF(!pixel_width!::real*!pixel_height!::real,0) AS way_pixels,
             COALESCE(
               'landuse_' || CASE WHEN landuse IN ('forest', 'military', 'farmland') THEN landuse ELSE NULL END,
-              'natural_' || CASE WHEN "natural" IN ('wood', 'glacier', 'sand', 'scree', 'shingle', 'bare_rock') THEN "natural" ELSE NULL END,
+              'natural_' || CASE WHEN "natural" IN ('wood', 'glacier', 'sand', 'scree', 'shingle', 'bare_rock', 'water') THEN "natural" ELSE NULL END,
               'place_' || CASE WHEN place IN ('island') THEN place ELSE NULL END,
               'boundary_' || CASE WHEN boundary IN ('national_park') THEN boundary ELSE NULL END,
               'leisure_' || CASE WHEN leisure IN ('nature_reserve') THEN leisure ELSE NULL END
@@ -1888,7 +1888,7 @@ Layer:
             CASE WHEN building = 'no' OR building IS NULL THEN 'no' ELSE 'yes' END AS is_building -- always no with the where conditions
           FROM planet_osm_polygon
           WHERE (landuse IN ('forest', 'military', 'farmland')
-              OR "natural" IN ('wood', 'glacier', 'sand', 'scree', 'shingle', 'bare_rock')
+              OR "natural" IN ('wood', 'glacier', 'sand', 'scree', 'shingle', 'bare_rock', 'water')
               OR "place" IN ('island')
               OR boundary IN ('national_park')
               OR leisure IN ('nature_reserve'))
@@ -1897,7 +1897,7 @@ Layer:
           ORDER BY way_area DESC
         ) AS text_poly_low_zoom
     properties:
-      minzoom: 7
+      minzoom: 0
       maxzoom: 9
   - id: text-poly
     class: text
diff --git a/water.mss b/water.mss
index 77e5f1adbc..e234e17e57 100644
--- a/water.mss
+++ b/water.mss
@@ -43,7 +43,7 @@
   [natural = 'water']::natural,
   [landuse = 'reservoir']::landuse,
   [waterway = 'riverbank']::waterway {
-    [zoom >= 6] {
+    [zoom >= 0] {
       polygon-fill: @water-color;
       [way_pixels >= 4] {
         polygon-gamma: 0.75;
@@ -313,12 +313,13 @@
   }
 }
 
+.text-low-zoom[zoom < 10],
 .text[zoom >= 10] {
   [feature = 'natural_water'],
   [feature = 'landuse_reservoir'],
   [feature = 'landuse_basin'],
   [feature = 'waterway_dock'] {
-    [zoom >= 10][way_pixels > 3000],
+    [zoom >= 0][way_pixels > 3000],
     [zoom >= 17] {
       text-name: "[name]";
       text-size: 10;