Reduce precision default value

aodn · Nov 18, 2024 · f28e55f · f28e55f
1 parent 6197be9
commit f28e55f
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/indexer/src/main/java/au/org/aodn/esindexer/utils/GeometryUtils.java b/indexer/src/main/java/au/org/aodn/esindexer/utils/GeometryUtils.java
@@ -44,7 +44,7 @@ public enum PointOrientation {
 
     @Getter
     @Setter
-    protected static double coastalPrecision = 0.05;
+    protected static double coastalPrecision = 0.1;
 
     // Load a coastline shape file so that we can get a spatial extents that cover sea only
     public static void init() {
@@ -68,7 +68,10 @@ public static void init() {
                     SimpleFeature feature = iterator.next();
                     Geometry landFeatureGeometry = (Geometry) feature.getDefaultGeometry();
 
-                    // This will reduce the points of the shape file for faster processing
+                    // This will reduce the points of the shape file for faster processing, this
+                    // simplification may cause polygon invalid and therefore need to use buffer(0.0) later
+                    // during processing to work around this issue. Another choice is TopologyPreservingSimplifier
+                    // but the polygon output is a bit complicated
                     Geometry simplifiedGeometry = DouglasPeuckerSimplifier
                             .simplify(landFeatureGeometry, getCoastalPrecision()); // Adjust tolerance