check validity and repair with locationtech/jts#682

Cavva79 · Feb 8, 2021 · d1d8892 · d1d8892
1 parent 2406fe1
commit d1d8892
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Showing 2 changed files with 35 additions and 3 deletions.
diff --git a/pom.xml b/pom.xml
@@ -11,7 +11,7 @@
 		<dependency>
 			<groupId>org.locationtech.jts</groupId>
 			<artifactId>jts-core</artifactId>
-			<version>1.16.1</version>
+			<version>1.18.1-SNAPSHOT</version>
 		</dependency>
 
 		<dependency>

diff --git a/src/test/java/geometry/test/GeometryTest.java b/src/test/java/geometry/test/GeometryTest.java
@@ -1,13 +1,15 @@
 package geometry.test;
 
+import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
+
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.locationtech.jts.geom.Geometry;
 import org.locationtech.jts.io.WKTReader;
 
 public class GeometryTest {
-	
+
 	private static WKTReader reader;
 
 	@BeforeAll
@@ -16,12 +18,42 @@ public static void initTests() {
 	}
 
 	@Test
-	public void testFixGeometry() throws Exception {
+	public void testReadGeometry() throws Exception {
+		String wktError = "MULTIPOLYGON ("
+				+ "((1764821.349985 4897058.789998, 1764821.349425 4897058.794803, 1764821.349985 4897058.789998)), "
+				+ "((1764821.34997 4897058.789997, 1764818.68 4897058.5, 1764812.591783 4897057.108204, 1764819.560837 4896999.356852, 1764801.447089 4896996.63796, 1764802.126355 4896987.574986, 1764827.938445 4896990.067304, 1764830.429086 4896964.011253, 1764832.740144 4896964.29157, 1764832.226208 4896968.528816, 1764833.728522 4896968.674128, 1764833.726376 4896968.721375, 1764832.22 4896968.58, 1764823.96 4897035.76, 1764826.244162 4897035.937929, 1764826.243892 4897035.940238, 1764823.961426 4897035.762083, 1764821.34997 4897058.789997))"
+				+ ")";
+		Geometry geometry = reader.read(wktError);
+		assertFalse(geometry.isValid(), "Valid geometry");
+	}
+
+	@Test
+	public void testReadGeometryValid() throws Exception {
+		String wktError = "MULTIPOLYGON ("
+				+ "((1764821.34997 4897058.789997, 1764818.68 4897058.5, 1764812.591783 4897057.108204, 1764819.560837 4896999.356852, 1764801.447089 4896996.63796, 1764802.126355 4896987.574986, 1764827.938445 4896990.067304, 1764830.429086 4896964.011253, 1764832.740144 4896964.29157, 1764832.226208 4896968.528816, 1764833.728522 4896968.674128, 1764833.726376 4896968.721375, 1764832.22 4896968.58, 1764823.96 4897035.76, 1764826.244162 4897035.937929, 1764826.243892 4897035.940238, 1764823.961426 4897035.762083, 1764821.34997 4897058.789997))"
+				+ ")";
+		Geometry geometry = reader.read(wktError);
+		assertTrue(geometry.isValid(), "Invalid geometry");
+	}
+
+	@Test
+	public void testFixGeometryWithBuffer0() throws Exception {
+		String wktError = "MULTIPOLYGON ("
+				+ "((1764821.349985 4897058.789998, 1764821.349425 4897058.794803, 1764821.349985 4897058.789998)), "
+				+ "((1764821.34997 4897058.789997, 1764818.68 4897058.5, 1764812.591783 4897057.108204, 1764819.560837 4896999.356852, 1764801.447089 4896996.63796, 1764802.126355 4896987.574986, 1764827.938445 4896990.067304, 1764830.429086 4896964.011253, 1764832.740144 4896964.29157, 1764832.226208 4896968.528816, 1764833.728522 4896968.674128, 1764833.726376 4896968.721375, 1764832.22 4896968.58, 1764823.96 4897035.76, 1764826.244162 4897035.937929, 1764826.243892 4897035.940238, 1764823.961426 4897035.762083, 1764821.34997 4897058.789997))"
+				+ ")";
+		Geometry geometry = reader.read(wktError).buffer(0);
+		assertTrue(geometry.isValid(), "Invalid geometry");
+	}
+
+	@Test
+	public void testFixGeometryWithSelfUnion() throws Exception {
 		String wktError = "MULTIPOLYGON ("
 				+ "((1764821.349985 4897058.789998, 1764821.349425 4897058.794803, 1764821.349985 4897058.789998)), "
 				+ "((1764821.34997 4897058.789997, 1764818.68 4897058.5, 1764812.591783 4897057.108204, 1764819.560837 4896999.356852, 1764801.447089 4896996.63796, 1764802.126355 4896987.574986, 1764827.938445 4896990.067304, 1764830.429086 4896964.011253, 1764832.740144 4896964.29157, 1764832.226208 4896968.528816, 1764833.728522 4896968.674128, 1764833.726376 4896968.721375, 1764832.22 4896968.58, 1764823.96 4897035.76, 1764826.244162 4897035.937929, 1764826.243892 4897035.940238, 1764823.961426 4897035.762083, 1764821.34997 4897058.789997))"
 				+ ")";
 		Geometry geometry = reader.read(wktError);
+		geometry = geometry.union(geometry);
 		assertTrue(geometry.isValid(), "Invalid geometry");
 	}