LUCENE-8245: Add more tests that demonstrate problems with GeoComplexPolygon.

This commit is contained in:
Karl Wright 2018-04-10 06:57:13 -04:00
parent 1cd859713b
commit 661fdf3a43
3 changed files with 198 additions and 2 deletions

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@ -21,12 +21,14 @@ import java.util.List;
import java.util.BitSet;
import java.util.Collections;
import org.apache.lucene.util.LuceneTestCase;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class GeoPolygonTest {
public class GeoPolygonTest extends LuceneTestCase {
@Test
public void testPolygonPointFiltering() {
@ -1518,5 +1520,58 @@ shape:
final GeoPoint point = new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(12.282452091883385), Geo3DUtil.fromDegrees(-1.91633079336513E-11));
assertTrue(polygon.isWithin(point) == largePolygon.isWithin(point));
}
@Test
@AwaitsFix(bugUrl="https://issues.apache.org/jira/browse/LUCENE-8245")
public void testLUCENE8245_case2() {
//POLYGON((5.512285089810178 -26.833721534785912,12.13983320542565 -16.085163683089583,4.868755337835201 -9.167423203860656,0.0 -5.261747514529465,-15.696549288211289 -21.362181191487718,5.512285089810178 -26.833721534785912))
final List<GeoPoint> points = new ArrayList<>();
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-26.833721534785912), Geo3DUtil.fromDegrees(5.512285089810178)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-16.085163683089583), Geo3DUtil.fromDegrees(12.13983320542565)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-9.167423203860656), Geo3DUtil.fromDegrees(4.868755337835201)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-5.261747514529465), Geo3DUtil.fromDegrees(0.0)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-21.362181191487718), Geo3DUtil.fromDegrees(-15.696549288211289)));
final GeoPolygonFactory.PolygonDescription description = new GeoPolygonFactory.PolygonDescription(points);
final GeoPolygon polygon = GeoPolygonFactory.makeGeoPolygon(PlanetModel.SPHERE, description);
final GeoPolygon largePolygon = GeoPolygonFactory.makeLargeGeoPolygon(PlanetModel.SPHERE, Collections.singletonList(description));
//POINT(-6.994273817216168E-11 -1.6915596606526662E-292)
final GeoPoint point = new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-1.6915596606526662E-292), Geo3DUtil.fromDegrees(-6.994273817216168E-11));
assertTrue(polygon.isWithin(point) == largePolygon.isWithin(point));
}
@Test
@AwaitsFix(bugUrl="https://issues.apache.org/jira/browse/LUCENE-8245")
public void testLUCENE8245_case3() {
//POLYGON((144.76249846857021 8.828705232593283,166.00162989841027 -8.5E-322,157.03429484830787 64.92565566857392,108.64696979831984 39.10241638996957,102.54234512410089 20.471658760034586,144.76249846857021 8.828705232593283))
final List<GeoPoint> points = new ArrayList<>();
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(8.828705232593283), Geo3DUtil.fromDegrees(144.76249846857021)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-8.5E-322), Geo3DUtil.fromDegrees(166.00162989841027)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(64.92565566857392), Geo3DUtil.fromDegrees(157.03429484830787)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(39.10241638996957), Geo3DUtil.fromDegrees(108.64696979831984)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(20.471658760034586), Geo3DUtil.fromDegrees(102.54234512410089)));
final GeoPolygonFactory.PolygonDescription description = new GeoPolygonFactory.PolygonDescription(points);
final GeoPolygon polygon = GeoPolygonFactory.makeGeoPolygon(PlanetModel.SPHERE, description);
final GeoPolygon largePolygon = GeoPolygonFactory.makeLargeGeoPolygon(PlanetModel.SPHERE, Collections.singletonList(description));
//POINT(179.9999999999998 7.627654408067997E-11)
final GeoPoint point = new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(7.627654408067997E-11), Geo3DUtil.fromDegrees(179.9999999999998));
assertTrue(polygon.isWithin(point) == largePolygon.isWithin(point));
}
@Test
public void testLUCENE8245_case4() {
//POLYGON((-3.728795716978514 -10.354090605548162,-137.97868338527985 0.05602723926521642,-113.87317441507611 -76.2471400450585,-162.64032677742279 -89.9999999991684,179.9999999999998 -89.99999999999997,-3.728795716978514 -10.354090605548162))
final List<GeoPoint> points = new ArrayList<>();
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-10.354090605548162), Geo3DUtil.fromDegrees(-3.728795716978514)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(0.05602723926521642), Geo3DUtil.fromDegrees(-137.97868338527985)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-76.2471400450585), Geo3DUtil.fromDegrees(-113.87317441507611)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-89.9999999991684), Geo3DUtil.fromDegrees(-162.64032677742279)));
points.add(new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-89.99999999999997), Geo3DUtil.fromDegrees(179.9999999999998)));
final GeoPolygonFactory.PolygonDescription description = new GeoPolygonFactory.PolygonDescription(points);
final GeoPolygon polygon = GeoPolygonFactory.makeGeoPolygon(PlanetModel.SPHERE, description);
final GeoPolygon largePolygon = GeoPolygonFactory.makeLargeGeoPolygon(PlanetModel.SPHERE, Collections.singletonList(description));
//POINT(-1.2862855990004445E-10 -39.178517830976105)
final GeoPoint point = new GeoPoint(PlanetModel.SPHERE, Geo3DUtil.fromDegrees(-39.178517830976105), Geo3DUtil.fromDegrees(-1.2862855990004445E-10));
assertTrue(polygon.isWithin(point) == largePolygon.isWithin(point));
}
}

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@ -897,7 +897,7 @@ public class RandomGeo3dShapeGenerator extends LuceneTestCase {
* @param points The points to order.
* @return The list of ordered points anti-clockwise.
*/
private List<GeoPoint> orderPoints(List<GeoPoint> points) {
protected List<GeoPoint> orderPoints(List<GeoPoint> points) {
double x = 0;
double y = 0;
double z = 0;

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@ -17,11 +17,15 @@
package org.apache.lucene.spatial3d.geom;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import com.carrotsearch.randomizedtesting.annotations.Repeat;
import com.carrotsearch.randomizedtesting.generators.BiasedNumbers;
import org.junit.Test;
import static com.carrotsearch.randomizedtesting.RandomizedTest.randomDouble;
/**
* Random test for polygons.
*/
@ -84,4 +88,141 @@ public class RandomGeoPolygonTest extends RandomGeo3dShapeGenerator {
GeoCompositePolygon polygon = (GeoCompositePolygon)GeoPolygonFactory.makeGeoPolygon(PlanetModel.SPHERE, points);
assertTrue(polygon.size() == 3);
}
/**
* Test comparing different polygon technologies using random
* biased doubles.
*/
@Test
@AwaitsFix(bugUrl="https://issues.apache.org/jira/browse/LUCENE-8245")
@Repeat(iterations = 10)
public void testComparePolygons() {
final PlanetModel planetModel = randomPlanetModel();
//Create polygon points using a reference point and a maximum distance to the point
final GeoPoint referencePoint = getBiasedPoint(planetModel);
final int n = random().nextInt(4) + 4;
final List<GeoPoint> points = new ArrayList<>(n);
final double maxDistance = random().nextDouble() * Math.PI;
for (int i = 0; i < n; i++) {
while(true) {
final double distance = BiasedNumbers.randomDoubleBetween(random(), 0, maxDistance);// random().nextDouble() * maxDistance;
final double bearing = random().nextDouble() * 2 * Math.PI;
GeoPoint p = planetModel.surfacePointOnBearing(referencePoint, distance, bearing);
if (!contains(p, points)) {
if (points.size() > 1 && Plane.arePointsCoplanar(points.get(points.size() -1), points.get(points.size() - 2), p)) {
continue;
}
points.add(p);
break;
}
}
}
//order points so we don't get crossing edges
final List<GeoPoint> orderedPoints = orderPoints(points);
//Comment out below to get clock-wise polygons
if (random().nextBoolean() && random().nextBoolean()) {
Collections.reverse(orderedPoints);
}
GeoPolygonFactory.PolygonDescription polygonDescription = new GeoPolygonFactory.PolygonDescription(orderedPoints);
GeoPolygon polygon = null;
try {
polygon = GeoPolygonFactory.makeGeoPolygon(planetModel, polygonDescription);
} catch(Exception e) {
StringBuilder buffer = new StringBuilder("Polygon failed to build with an exception:\n");
buffer.append(points.toString()+ "\n");
buffer.append("WKT:" + getWKT(orderedPoints));
buffer.append(e.toString());
fail(buffer.toString());
}
if (polygon == null) {
StringBuilder buffer = new StringBuilder("Polygon failed to build:\n");
buffer.append(points.toString()+ "\n");
buffer.append("WKT:" + getWKT(orderedPoints));
fail(buffer.toString());
}
GeoPolygon largePolygon = null;
try {
largePolygon = GeoPolygonFactory.makeLargeGeoPolygon(planetModel, Collections.singletonList(polygonDescription));
} catch(Exception e) {
StringBuilder buffer = new StringBuilder("Large polygon failed to build with an exception:\n");
buffer.append(points.toString()+ "\n");
buffer.append("WKT:" + getWKT(orderedPoints));
buffer.append(e.toString());
fail(buffer.toString());
}
if (largePolygon == null) {
StringBuilder buffer = new StringBuilder("Large polygon failed to build:\n");
buffer.append(points.toString()+ "\n");
buffer.append("WKT:" + getWKT(orderedPoints));
fail(buffer.toString());
}
for(int i=0;i<100000;i++) {
GeoPoint point = getBiasedPoint(planetModel);
boolean withIn1 = polygon.isWithin(point);
boolean withIn2 = largePolygon.isWithin(point);
StringBuilder buffer = new StringBuilder();
if (withIn1 != withIn2) {
//NOTE: Sometimes we get errors when check point is near a polygon point.
// For the time being, we filter this errors.
double d1 = polygon.computeOutsideDistance(DistanceStyle.ARC, point);
double d2 = largePolygon.computeOutsideDistance(DistanceStyle.ARC, point);
if (d1 == 0 && d2 == 0) {
continue;
}
buffer = buffer.append("\nStandard polygon: " + polygon.toString() +"\n");
buffer = buffer.append("\nLarge polygon: " + largePolygon.toString() +"\n");
buffer = buffer.append("\nPoint: " + point.toString() +"\n");
buffer.append("\nWKT: " + getWKT(orderedPoints));
buffer.append("\nWKT: POINT(" + Math.toDegrees(point.getLongitude()) + " " + Math.toDegrees(point.getLatitude()) + ")\n");
buffer.append("normal polygon: " +withIn1 + "\n");
buffer.append("large polygon: " + withIn2 + "\n");
}
assertTrue(buffer.toString(), withIn1 == withIn2);
}
//Not yet tested
// for(int i=0;i<100;i++) {
// GeoShape shape = randomGeoShape(randomShapeType(), planetModel);
// int rel1 = polygon.getRelationship(shape);
// int rel2 = largePolygon.getRelationship(shape);
// StringBuilder buffer = new StringBuilder();
// if (rel1 != rel2) {
// buffer = buffer.append(polygon.toString() +"\n" + shape.toString() + "\n");
// buffer.append("WKT: " + getWKT(orderedPoints) + "\n");
// buffer.append("normal polygon: " + rel1 + "\n");
// buffer.append("large polygon: " + rel2 + "\n");
// }
// assertTrue(buffer.toString(), rel1 == rel2);
// }
}
private GeoPoint getBiasedPoint(PlanetModel planetModel) {
double lat = BiasedNumbers.randomDoubleBetween(random(), 0, Math.PI / 2);
if (random().nextBoolean()) {
lat = (-1) * lat;
}
double lon = BiasedNumbers.randomDoubleBetween(random(), 0, Math.PI);
if (random().nextBoolean()) {
lon = (-1) * lon;
}
return new GeoPoint(planetModel, lat, lon);
}
private String getWKT(List<GeoPoint> points) {
StringBuffer buffer = new StringBuffer("POLYGON((");
for (GeoPoint point : points) {
buffer.append(Math.toDegrees(point.getLongitude()) + " " + Math.toDegrees(point.getLatitude()) + ",");
}
buffer.append(Math.toDegrees(points.get(0).getLongitude()) + " " + Math.toDegrees(points.get(0).getLatitude()) + "))\n");
return buffer.toString();
}
private boolean contains(GeoPoint p, List<GeoPoint> points) {
for (GeoPoint point : points) {
if (point.isNumericallyIdentical(p)) {
return true;
}
}
return false;
}
}