From 8db68ada90917f375b7ce327556c74b82637e6de Mon Sep 17 00:00:00 2001
From: Penegal <penegal@live.fr>
Date: Fri, 9 Mar 2018 13:25:38 +0100
Subject: [PATCH] Fix #996 by adding intermittent water bodies support (#3104)

---
 project.mml                    |   5 ++++-
 symbols/intermittent_water.png | Bin 0 -> 209 bytes
 water.mss                      |  21 ++++++++++++++++-----
 3 files changed, 20 insertions(+), 6 deletions(-)
 create mode 100644 symbols/intermittent_water.png

diff --git a/project.mml b/project.mml
index e721f224cf..4ca9c4d6e1 100644
--- a/project.mml
+++ b/project.mml
@@ -227,7 +227,10 @@ Layer:
             waterway,
             landuse,
             name,
-            way_area/NULLIF(!pixel_width!::real*!pixel_height!::real,0) AS way_pixels
+            way_area/NULLIF(!pixel_width!::real*!pixel_height!::real,0) AS way_pixels,
+            CASE WHEN tags->'intermittent' IN ('yes')
+              OR tags->'seasonal' IN ('yes', 'spring', 'summer', 'autumn', 'winter', 'wet_season', 'dry_season') 
+              THEN 'yes' ELSE 'no' END AS int_intermittent
           FROM planet_osm_polygon
           WHERE
             (waterway IN ('dock', 'riverbank')
diff --git a/symbols/intermittent_water.png b/symbols/intermittent_water.png
new file mode 100644
index 0000000000000000000000000000000000000000..53abc925fa4736cca930ff1e5c44ac25324bf286
GIT binary patch
literal 209
zcmeAS@N?(olHy`uVBq!ia0vp^3LwnE1|*BCs=fdzwj^(N7l!{JxM1({$v_d#0*}aI
z1_r((Aj~*bn@<`j$X?><>&pI!nT=gUk7>zIE1-~UW=KSdbAE1aYF-JD%fR4Vl$uzQ
znxasiS(2gP?&%wlqL<1J6gTyBaSVw#{PvO|BhYRJgAMgUuOtp=2sJnB9^Ulsx8Vzx
j!<QJ@WeN@;h{mr{%3q{DKH%W51DWjU>gTe~DWM4fX#qQi

literal 0
HcmV?d00001

diff --git a/water.mss b/water.mss
index 33850f7dc6..08349de53f 100644
--- a/water.mss
+++ b/water.mss
@@ -47,12 +47,23 @@
     [zoom >= 1][zoom < 2][way_pixels >= 16],
     [zoom >= 2][zoom < 8][way_pixels >= 32],
     [zoom >= 8] {
-      polygon-fill: @water-color;
-      [way_pixels >= 4] {
-        polygon-gamma: 0.75;
+      [int_intermittent = 'no'] {
+        polygon-fill: @water-color;
+        [way_pixels >= 4] {
+          polygon-gamma: 0.75;
+        }
+        [way_pixels >= 64] {
+          polygon-gamma: 0.6;
+        }
       }
-      [way_pixels >= 64] {
-        polygon-gamma: 0.6;
+      [int_intermittent = 'yes'] {
+        polygon-pattern-file: url('symbols/intermittent_water.png');
+        [way_pixels >= 4] {
+          polygon-pattern-gamma: 0.75;
+        }
+        [way_pixels >= 64] {
+          polygon-pattern-gamma: 0.6;
+        }
       }
     }
   }