contours

contours/chaikin.sql

@@ -0,0 +1,20 @@
+DROP TABLE IF EXISTS :tbl;
+
+CREATE TABLE :tbl (
+    fid serial NOT NULL,
+    z DOUBLE PRECISION,
+    geom geometry(MULTILINESTRING, 3346)
+);
+
+INSERT INTO :tbl (
+    SELECT
+        fid,
+        z,
+        ST_Multi(
+            ST_ChaikinSmoothing (
+                ST_SimplifyVW(geom, 50),
+                5
+            )
+        ) AS geoms
+    FROM
+        :src);