Add a Geometry method to fix invalid geometry

Author: jericks

src/main/groovy/geoscript/geom/Geometry.groovy

@@ -9,6 +9,7 @@ import org.locationtech.jts.geom.prep.PreparedGeometryFactory
 import org.locationtech.jts.geom.Envelope
 import org.locationtech.jts.geom.IntersectionMatrix
 import org.locationtech.jts.geom.util.AffineTransformation
+import org.locationtech.jts.geom.util.GeometryFixer
 import org.locationtech.jts.operation.buffer.BufferParameters
 import org.locationtech.jts.operation.buffer.BufferOp
 import org.locationtech.jts.awt.FontGlyphReader
@@ -478,6 +479,14 @@ class Geometry {
         wrap(this.g.union(other.g))
     }
 
+    /**
+     * Fix an invalid Geometry
+     * @return A new fixed Geometry
+     */
+    Geometry fix() {
+        wrap(GeometryFixer.fix(this.g))
+    }
+
     /**
      * Whether this Geometry is within the other Geometry
      * @param other The other Geometry

src/test/groovy/geoscript/geom/GeometryTestCase.groovy

@@ -1351,4 +1351,11 @@ class GeometryTestCase {
         assertTrue(preparedGeom instanceof PreparedGeometry)
         assertEquals(geom.toString(), preparedGeom.toString())
     }
+
+    @Test void fix() {
+        Geometry invalidLine = new LineString([[0, 0], [0, 0], [0, 0], [0, 0], [0, 0], [1, 1]])
+        Geometry fixedLine = invalidLine.fix()
+        assertEquals("LINESTRING (0 0, 1 1)", fixedLine.wkt)
+    }
+
 }