separate land polygons for antarctica

imagico · Jun 18, 2014 · 220d840 · 220d840
1 parent 9efd70d
commit 220d840
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Showing 3 changed files with 67 additions and 5 deletions.
diff --git a/get-shapefiles.sh b/get-shapefiles.sh
@@ -24,6 +24,10 @@ curl -z "data/simplified-land-polygons-complete-3857.zip" -L -o "data/simplified
 echo "simplified-land-polygons-complete-3857..."
 unzip $UNZIP_OPTS data/simplified-land-polygons-complete-3857.zip simplified-land-polygons-complete-3857/simplified_land_polygons.{shp,shx,prj,dbf,cpg} -d data/
 
+ogr2ogr -spat -20037509 -8400000 20037509 20037509 data/simplified-land-polygons-complete-3857/simplified_land_north.shp data/simplified-land-polygons-complete-3857/simplified_land_polygons.shp
+ogr2ogr -spat -20037509 -20037509 20037509 -8400000 data/simplified-land-polygons-complete-3857/simplified_land_south.shp data/simplified-land-polygons-complete-3857/simplified_land_polygons.shp
+
+
 # ne_110m_admin_0_boundary_lines_land
 echo "dowloading ne_110m_admin_0_boundary_lines_land..."
 curl -z data/ne_110m_admin_0_boundary_lines_land.zip -L -o data/ne_110m_admin_0_boundary_lines_land.zip http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/110m/cultural/ne_110m_admin_0_boundary_lines_land.zip
@@ -42,6 +46,8 @@ curl -z "data/land-polygons-split-3857.zip" -L -o "data/land-polygons-split-3857
 echo "expanding land-polygons-split-3857..."
 unzip $UNZIP_OPTS data/land-polygons-split-3857.zip land-polygons-split-3857/land_polygons.{shp,shx,prj,dbf,cpg} -d data/
 
+ogr2ogr -spat -20037509 -8400000 20037509 20037509 data/land-polygons-split-3857/land_north.shp data/land-polygons-split-3857/land_polygons.shp
+ogr2ogr -spat -20037509 -20037509 20037509 -8400000 data/land-polygons-split-3857/land_south.shp data/land-polygons-split-3857/land_polygons.shp
 
 #process populated places
 echo "processing ne_10m_populated_places..."
@@ -55,8 +61,11 @@ shapeindex --shape_files \
 data/simplified-land-polygons-complete-3857/simplified_land_polygons.shp \
 data/land-polygons-split-3857/land_polygons.shp \
 data/ne_10m_populated_places/ne_10m_populated_places_fixed.shp \
-data/ne_110m_admin_0_boundary_lines_land/ne_110m_admin_0_boundary_lines_land.shp
-
+data/ne_110m_admin_0_boundary_lines_land/ne_110m_admin_0_boundary_lines_land.shp \
+data/land-polygons-split-3857/land_south.shp \
+data/land-polygons-split-3857/land_north.shp \
+data/simplified-land-polygons-complete-3857/simplified_land_north.shp \
+data/simplified-land-polygons-complete-3857/simplified_land_south.shp
 
 #clean up
 echo "cleaning up..."

diff --git a/project.mml b/project.mml
@@ -39,14 +39,14 @@
       "geometry": "polygon",
       "extent": [
         -179.99999692067183,
-        -85.051,
+        -60,
         179.99999692067183,
         83.66933299999998
       ],
       "id": "world",
       "class": "",
       "Datasource": {
-        "file": "data/simplified-land-polygons-complete-3857/simplified_land_polygons.shp",
+        "file": "data/simplified-land-polygons-complete-3857/simplified_land_north.shp",
         "type": "shape"
       },
       "srs-name": "900913",
@@ -60,19 +60,57 @@
         -179.99999692067183,
         -85.051,
         179.99999692067183,
+        -60
+      ],
+      "id": "world-south",
+      "class": "",
+      "Datasource": {
+        "file": "data/simplified-land-polygons-complete-3857/simplified_land_south.shp",
+        "type": "shape"
+      },
+      "srs-name": "900913",
+      "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",
+      "advanced": {},
+      "name": "world-south"
+    },
+    {
+      "geometry": "polygon",
+      "extent": [
+        -179.99999692067183,
+        -60,
+        179.99999692067183,
         83.66933299999998
       ],
       "id": "coast-poly",
       "class": "",
       "Datasource": {
-        "file": "data/land-polygons-split-3857/land_polygons.shp",
+        "file": "data/land-polygons-split-3857/land_north.shp",
         "type": "shape"
       },
       "srs-name": "900913",
       "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",
       "advanced": {},
       "name": "coast-poly"
     },
+    {
+      "geometry": "polygon",
+      "extent": [
+        -179.99999692067183,
+        -85.051,
+        179.99999692067183,
+        -60
+      ],
+      "id": "coast-poly-south",
+      "class": "",
+      "Datasource": {
+        "file": "data/land-polygons-split-3857/land_south.shp",
+        "type": "shape"
+      },
+      "srs-name": "900913",
+      "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",
+      "advanced": {},
+      "name": "coast-poly-south"
+    },
     {
       "geometry": "polygon",
       "extent": [

diff --git a/shapefiles.mss b/shapefiles.mss
@@ -24,12 +24,27 @@
   }
 }
 
+#world-south {
+  [zoom = 0] {
+    polygon-fill: @land-color;
+  }
+  [zoom >= 1][zoom < 10] {
+    polygon-pattern-file: url('symbols/glacier.png');
+  }
+}
+
 #coast-poly {
   [zoom >= 10] {
     polygon-fill: @land-color;
   }
 }
 
+#coast-poly-south {
+  [zoom >= 10] {
+    polygon-pattern-file: url('symbols/glacier2.png');
+  }
+}
+
 #builtup {
   [zoom >= 8][zoom < 10] {
     polygon-fill: #ddd;