Random scrub pattern

landcover.mss

@@ -426,17 +426,10 @@
     [way_pixels >= 64] { polygon-gamma: 0.3;  }
   }
 
-  [feature = 'natural_scrub'] {
-    [zoom >= 10] {
-      polygon-fill: @scrub;
-      [way_pixels >= 4]  { polygon-gamma: 0.75; }
-      [way_pixels >= 64] { polygon-gamma: 0.3;  }
-    }
-    [zoom >= 14] {
-      polygon-pattern-file: url('symbols/scrub.png');
-      [way_pixels >= 4]  { polygon-pattern-gamma: 0.75; }
-      [way_pixels >= 64] { polygon-pattern-gamma: 0.3;  }
-    }
+  [feature = 'natural_scrub'][zoom >= 10] {
+    polygon-fill: @scrub;
+    [way_pixels >= 4]  { polygon-gamma: 0.75; }
+    [way_pixels >= 64] { polygon-gamma: 0.3;  }
   }
 
   [feature = 'wetland_swamp'][zoom >= 8] {
@@ -625,7 +618,12 @@
         polygon-pattern-alignment: global;
       }
     }
+    [natural = 'scrub'] {
+      polygon-pattern-file: url('symbols/scrub.png');
+      polygon-pattern-alignment: global;
+    }
   }
+
   //Also landuse = forest, converted in the SQL
   [natural = 'wood'][zoom >= 13]::wood {
     polygon-pattern-file: url('symbols/forest.png'); // Lch(55,30,135)

project.mml

@@ -280,7 +280,7 @@
       "srs": "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over",
       "Datasource": {
         "extent": "-20037508,-20037508,20037508,20037508",
-        "table": "(SELECT\n    way, surface, \n    COALESCE(CASE WHEN landuse = 'forest' THEN 'wood' ELSE NULL END, \"natural\") AS \"natural\",\n    CASE WHEN \"natural\" IN ('marsh', 'mud') \n        THEN \"natural\" \n        ELSE CASE WHEN (\"natural\" = 'wetland' AND wetland IS NULL) \n          THEN 'wetland' \n          ELSE CASE WHEN (\"natural\" = 'wetland')\n            THEN wetland\n            ELSE NULL\n            END \n        END\n      END AS int_wetland\n  FROM planet_osm_polygon\n  WHERE (\"natural\" IN ('marsh', 'mud', 'wetland', 'wood', 'beach', 'shoal', 'reef') OR landuse = 'forest')\n    AND building IS NULL\n    AND way_area > 0.01*!pixel_width!::real*!pixel_height!::real\n  ORDER BY z_order, way_area DESC\n) AS landcover_area_symbols",
+        "table": "(SELECT\n    way, surface, \n    COALESCE(CASE WHEN landuse = 'forest' THEN 'wood' ELSE NULL END, \"natural\") AS \"natural\",\n    CASE WHEN \"natural\" IN ('marsh', 'mud') \n        THEN \"natural\" \n        ELSE CASE WHEN (\"natural\" = 'wetland' AND wetland IS NULL) \n          THEN 'wetland' \n          ELSE CASE WHEN (\"natural\" = 'wetland')\n            THEN wetland\n            ELSE NULL\n            END \n        END\n      END AS int_wetland\n  FROM planet_osm_polygon\n  WHERE (\"natural\" IN ('marsh', 'mud', 'wetland', 'wood', 'beach', 'shoal', 'reef', 'scrub') OR landuse = 'forest')\n    AND building IS NULL\n    AND way_area > 0.01*!pixel_width!::real*!pixel_height!::real\n  ORDER BY z_order, way_area DESC\n) AS landcover_area_symbols",
         "geometry_field": "way",
         "type": "postgis",
         "key_field": "",

project.yaml

@@ -294,7 +294,7 @@ Layer:
                 END
               END AS int_wetland
           FROM planet_osm_polygon
-          WHERE ("natural" IN ('marsh', 'mud', 'wetland', 'wood', 'beach', 'shoal', 'reef') OR landuse = 'forest')
+          WHERE ("natural" IN ('marsh', 'mud', 'wetland', 'wood', 'beach', 'shoal', 'reef', 'scrub') OR landuse = 'forest')
             AND building IS NULL
             AND way_area > 0.01*!pixel_width!::real*!pixel_height!::real
           ORDER BY z_order, way_area DESC

symbols/generating_patterns/scrub.md

@@ -0,0 +1,10 @@
+The scrub pattern is generated by visiting http://www.imagico.de/map/jsdotpattern.php and using the following options:
+
+- regular snub square ('5' button)
+- distance = 45
+- radius = 64
+- radius y = 64
+- metric = 2
+- about 10-20 relax clicks
+- 'scrub2' image
+- use the "render (px aligned)" option