mil.nga.sf.Point Java Examples

/**
 * Check if the points form a rectangle and return if the side one has the same x
 *
 * @param points points
 * @return null if not a rectangle, true if same x side 1, false if same y side 1
 */
public static Boolean checkIfRectangleAndFindSide(List<Point> points) {
    Boolean sameXSide1 = null;
    int size = points.size();
    if (size == 4 || size == 5) {
        Point point1 = points.get(0);
        Point lastPoint = points.get(points.size() - 1);
        boolean closed = point1.getX() == lastPoint.getX() && point1.getY() == lastPoint.getY();
        if ((closed && size == 5) || (!closed && size == 4)) {
            Point point2 = points.get(1);
            Point point3 = points.get(2);
            Point point4 = points.get(3);
            if (point1.getX() == point2.getX() && point2.getY() == point3.getY()) {
                if (point1.getY() == point4.getY() && point3.getX() == point4.getX()) {
                    sameXSide1 = true;
                }
            } else if (point1.getY() == point2.getY() && point2.getX() == point3.getX()) {
                if (point1.getX() == point4.getX() && point3.getY() == point4.getY()) {
                    sameXSide1 = false;
                }
            }
        }
    }
    return sameXSide1;
}
 

/**
 * Convert a {@link LineString} to a {@link PolylineOptions}
 *
 * @param lineString line string
 * @return polyline options
 */
public PolylineOptions toPolyline(LineString lineString) {

    PolylineOptions polylineOptions = new PolylineOptions();
    Double z = null;

    // Try to simplify the number of points in the line string
    List<Point> points = simplifyPoints(lineString.getPoints());

    for (Point point : points) {
        LatLng latLng = toLatLng(point);
        polylineOptions.add(latLng);
        if (point.hasZ()) {
            z = (z == null) ? point.getZ() : Math.max(z, point.getZ());
        }
    }

    if (lineString.hasZ() && z != null) {
        polylineOptions.zIndex(z.floatValue());
    }

    return polylineOptions;
}
 

/**
 * When the simplify tolerance is set, simplify the points to a similar
 * curve with fewer points.
 *
 * @param points ordered points
 * @return simplified points
 */
private List<Point> simplifyPoints(List<Point> points) {

    List<Point> simplifiedPoints = null;
    if (simplifyTolerance != null) {

        // Reproject to web mercator if not in meters
        if (projection != null && !projection.isUnit(Units.METRES)) {
            points = toWebMercator.transform(points);
        }

        // Simplify the points
        simplifiedPoints = GeometryUtils.simplifyPoints(points,
                simplifyTolerance);

        // Reproject back to the original projection
        if (projection != null && !projection.isUnit(Units.METRES)) {
            simplifiedPoints = fromWebMercator.transform(simplifiedPoints);
        }
    } else {
        simplifiedPoints = points;
    }

    return simplifiedPoints;
}
 

private static Geometry createGeometry() {

		Polygon polygon = new Polygon();
		LineString ring = new LineString();
		ring.addPoint(new Point(-104.802246, 39.720343));
		ring.addPoint(new Point(-104.802246, 39.719753));
		ring.addPoint(new Point(-104.802183, 39.719754));
		ring.addPoint(new Point(-104.802184, 39.719719));
		ring.addPoint(new Point(-104.802138, 39.719694));
		ring.addPoint(new Point(-104.802097, 39.719691));
		ring.addPoint(new Point(-104.802096, 39.719648));
		ring.addPoint(new Point(-104.801646, 39.719648));
		ring.addPoint(new Point(-104.801644, 39.719722));
		ring.addPoint(new Point(-104.801550, 39.719723));
		ring.addPoint(new Point(-104.801549, 39.720207));
		ring.addPoint(new Point(-104.801648, 39.720207));
		ring.addPoint(new Point(-104.801648, 39.720341));
		ring.addPoint(new Point(-104.802246, 39.720343));
		polygon.addRing(ring);

		return polygon;
	}
 

/**
 * Create a random point
 * 
 * @param hasZ
 * @param hasM
 * @return point
 */
public static Point createPoint(boolean hasZ, boolean hasM) {

	double x = Math.random() * 180.0 * (Math.random() < .5 ? 1 : -1);
	double y = Math.random()
			* ProjectionConstants.WEB_MERCATOR_MIN_LAT_RANGE
			* (Math.random() < .5 ? 1 : -1);

	Point point = new Point(hasZ, hasM, x, y);

	if (hasZ) {
		double z = Math.random() * 1000.0;
		point.setZ(z);
	}

	if (hasM) {
		double m = Math.random() * 1000.0;
		point.setM(m);
	}

	return point;
}
 

/**
 * Compare the two points for equality
 * 
 * @param expected
 * @param actual
 */
private static void comparePoint(Point expected, Point actual, double delta) {

	compareBaseGeometryAttributes(expected, actual);
	TestCase.assertEquals(expected.getX(), actual.getX(), delta);
	TestCase.assertEquals(expected.getY(), actual.getY(), delta);
	if (expected.getZ() == null) {
		TestCase.assertEquals(expected.getZ(), actual.getZ());
	} else {
		TestCase.assertEquals(expected.getZ(), actual.getZ(), delta);
	}
	if (expected.getM() == null) {
		TestCase.assertEquals(expected.getM(), actual.getM());
	} else {
		TestCase.assertEquals(expected.getM(), actual.getM(), delta);
	}
}
 

/**
 * Validate Point
 * 
 * @param topGeometry
 * @param point
 */
private static void validatePoint(Geometry topGeometry, Point point) {

	TestCase.assertEquals(GeometryType.POINT, point.getGeometryType());

	validateZAndM(topGeometry, point);

	if (topGeometry.hasZ()) {
		TestCase.assertNotNull(point.getZ());
	} else {
		TestCase.assertNull(point.getZ());
	}

	if (topGeometry.hasM()) {
		TestCase.assertNotNull(point.getM());
	} else {
		TestCase.assertNull(point.getM());
	}
}
 

/**
 * Test generating tiles with random bounds and zoomss
 * 
 * @param geoPackage
 * @throws SQLException
 * @throws IOException
 */
public static void testGenerateTilesRandom(GeoPackage geoPackage)
		throws SQLException, IOException {

	for (int i = 0; i < 10; i++) {

		int minZoom = (int) (Math.random() * 3.0);
		int maxZoom = minZoom + ((int) (Math.random() * 3.0));
		Point point1 = TestUtils.createPoint(false, false);
		Point point2 = TestUtils.createPoint(false, false);
		BoundingBox boundingBox = new BoundingBox(Math.min(point1.getX(),
				point2.getX()), Math.min(point1.getY(), point2.getY()),
				Math.max(point1.getX(), point2.getX()), Math.max(
						point1.getY(), point2.getY()));
		UrlTileGenerator tileGenerator = new UrlTileGenerator(geoPackage,
				TABLE_NAME + i, URL, minZoom, maxZoom, boundingBox,
				getProjection());

		testGenerateTiles(tileGenerator);
	}
}
 

/**
 * Create a random point
 *
 * @param hasZ
 * @param hasM
 * @return
 */
public static Point createPoint(boolean hasZ, boolean hasM) {

    double x = Math.random() * 180.0 * (Math.random() < .5 ? 1 : -1);
    double y = Math.random() * 90.0 * (Math.random() < .5 ? 1 : -1);

    Point point = new Point(hasZ, hasM, x, y);

    if (hasZ) {
        double z = Math.random() * 1000.0;
        point.setZ(z);
    }

    if (hasM) {
        double m = Math.random() * 1000.0;
        point.setM(m);
    }

    return point;
}
 

@Override
protected Void doInBackground(Void... params ) {
    CloseableIterator<Observation> iterator = null;
    try {
        iterator = iterator();
        while (iterator.hasNext() && !isCancelled()) {
            Observation o = iterator.current();
            Geometry geometry = o.getGeometry();
            Point centroid = GeometryUtils.getCentroid(geometry);
            MarkerOptions options = new MarkerOptions().position(new LatLng(centroid.getY(), centroid.getX())).icon(ObservationBitmapFactory.bitmapDescriptor(context, o));

            publishProgress(new Pair<>(options, o));
        }

    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        if (iterator != null) {
            iterator.closeQuietly();
        }
    }

    return null;
}
 

@Override
protected Void doInBackground(Observation... observations) {
    for (Observation o : observations) {
        boolean passesFilter = true;
        for (Filter filter : filters) {
            passesFilter = filter.passesFilter(o);
            if (!passesFilter) {
                break;
            }
        }

        if (passesFilter) {
            Geometry geometry = o.getGeometry();
            Point centroid = GeometryUtils.getCentroid(geometry);
            MarkerOptions options = new MarkerOptions().position(new LatLng(centroid.getY(), centroid.getX())).icon(ObservationBitmapFactory.bitmapDescriptor(context, o));
            publishProgress(new Pair<>(options, o));
        }
    }

    return null;
}
 

/**
 * Add the linestring to the path
 *
 * @param simplifyTolerance simplify tolerance in meters
 * @param boundingBox       bounding box
 * @param transform         projection transform
 * @param path              path
 * @param lineString        line string
 */
private void addLineString(double simplifyTolerance, BoundingBox boundingBox, ProjectionTransform transform, Path path, LineString lineString) {

    List<Point> points = lineString.getPoints();

    if (points.size() >= 2) {

        // Try to simplify the number of points in the LineString
        points = simplifyPoints(simplifyTolerance, points);

        for (int i = 0; i < points.size(); i++) {
            Point point = points.get(i);
            Point webMercatorPoint = transform.transform(point);
            float x = TileBoundingBoxUtils.getXPixel(tileWidth, boundingBox,
                    webMercatorPoint.getX());
            float y = TileBoundingBoxUtils.getYPixel(tileHeight, boundingBox,
                    webMercatorPoint.getY());
            if (i == 0) {
                path.moveTo(x, y);
            } else {
                path.lineTo(x, y);
            }
        }
    }
}
 

/**
 * Add the polygon on the canvas
 *
 * @param simplifyTolerance simplify tolerance in meters
 * @param boundingBox       bounding box
 * @param transform         projection transform
 * @param path              path
 * @param polygon           polygon
 */
private void addPolygon(double simplifyTolerance, BoundingBox boundingBox, ProjectionTransform transform, Path path, Polygon polygon) {
    List<LineString> rings = polygon.getRings();
    if (!rings.isEmpty()) {

        // Add the polygon points
        LineString polygonLineString = rings.get(0);
        List<Point> polygonPoints = polygonLineString.getPoints();
        if (polygonPoints.size() >= 2) {
            addRing(simplifyTolerance, boundingBox, transform, path, polygonPoints);

            // Add the holes
            for (int i = 1; i < rings.size(); i++) {
                LineString holeLineString = rings.get(i);
                List<Point> holePoints = holeLineString.getPoints();
                if (holePoints.size() >= 2) {
                    addRing(simplifyTolerance, boundingBox, transform, path, holePoints);
                }
            }
        }
    }
}
 

/**
 * Add a ring
 *
 * @param simplifyTolerance simplify tolerance in meters
 * @param boundingBox       bounding box
 * @param transform         projection transform
 * @param path              path
 * @param points            points
 */
private void addRing(double simplifyTolerance, BoundingBox boundingBox, ProjectionTransform transform, Path path, List<Point> points) {

    // Try to simplify the number of points in the LineString
    points = simplifyPoints(simplifyTolerance, points);

    for (int i = 0; i < points.size(); i++) {
        Point point = points.get(i);
        Point webMercatorPoint = transform.transform(point);
        float x = TileBoundingBoxUtils.getXPixel(tileWidth, boundingBox,
                webMercatorPoint.getX());
        float y = TileBoundingBoxUtils.getYPixel(tileHeight, boundingBox,
                webMercatorPoint.getY());
        if (i == 0) {
            path.moveTo(x, y);
        } else {
            path.lineTo(x, y);
        }
    }
    path.close();
}
 

/**
 * Validate Point
 *
 * @param topGeometry
 * @param point
 */
private static void validatePoint(Geometry topGeometry, Point point) {

    TestCase.assertEquals(GeometryType.POINT, point.getGeometryType());

    validateZAndM(topGeometry, point);

    if (topGeometry.hasZ()) {
        TestCase.assertNotNull(point.getZ());
    } else {
        TestCase.assertNull(point.getZ());
    }

    if (topGeometry.hasM()) {
        TestCase.assertNotNull(point.getM());
    } else {
        TestCase.assertNull(point.getM());
    }
}
 

/**
 * Compare the two points for equality
 *
 * @param expected
 * @param actual
 */
private static void comparePoint(Point expected, Point actual, double delta) {

    compareBaseGeometryAttributes(expected, actual);
    TestCase.assertEquals(expected.getX(), actual.getX(), delta);
    TestCase.assertEquals(expected.getY(), actual.getY(), delta);
    if (expected.getZ() == null) {
        TestCase.assertEquals(expected.getZ(), actual.getZ());
    } else {
        TestCase.assertEquals(expected.getZ(), actual.getZ(), delta);
    }
    if (expected.getM() == null) {
        TestCase.assertEquals(expected.getM(), actual.getM());
    } else {
        TestCase.assertEquals(expected.getM(), actual.getM(), delta);
    }
}
 

/**
 * Create a random point
 *
 * @param hasZ
 * @param hasM
 * @return
 */
public static Point createPoint(boolean hasZ, boolean hasM) {

    double x = Math.random() * 180.0 * (Math.random() < .5 ? 1 : -1);
    double y = Math.random() * ProjectionConstants.WEB_MERCATOR_MIN_LAT_RANGE * (Math.random() < .5 ? 1 : -1);

    Point point = new Point(hasZ, hasM, x, y);

    if (hasZ) {
        double z = Math.random() * 1000.0;
        point.setZ(z);
    }

    if (hasM) {
        double m = Math.random() * 1000.0;
        point.setM(m);
    }

    return point;
}
 

private static Geometry createGeometry() {

        Polygon polygon = new Polygon();
        LineString ring = new LineString();
        ring.addPoint(new Point(-104.802246, 39.720343));
        ring.addPoint(new Point(-104.802246, 39.719753));
        ring.addPoint(new Point(-104.802183, 39.719754));
        ring.addPoint(new Point(-104.802184, 39.719719));
        ring.addPoint(new Point(-104.802138, 39.719694));
        ring.addPoint(new Point(-104.802097, 39.719691));
        ring.addPoint(new Point(-104.802096, 39.719648));
        ring.addPoint(new Point(-104.801646, 39.719648));
        ring.addPoint(new Point(-104.801644, 39.719722));
        ring.addPoint(new Point(-104.801550, 39.719723));
        ring.addPoint(new Point(-104.801549, 39.720207));
        ring.addPoint(new Point(-104.801648, 39.720207));
        ring.addPoint(new Point(-104.801648, 39.720341));
        ring.addPoint(new Point(-104.802246, 39.720343));
        polygon.addRing(ring);

        return polygon;
    }
 

/**
 * Get the path of the line string
 *
 * @param simplifyTolerance
 *            simplify tolerance in meters
 * @param boundingBox
 * @param transform
 * @param lineString
 */
private Path2D getPath(double simplifyTolerance, BoundingBox boundingBox,
		ProjectionTransform transform, LineString lineString) {

	Path2D path = null;

	// Try to simplify the number of points in the LineString
	List<Point> lineStringPoints = simplifyPoints(simplifyTolerance,
			lineString.getPoints());

	for (Point point : lineStringPoints) {

		Point projectedPoint = transform.transform(point);

		float x = TileBoundingBoxUtils.getXPixel(tileWidth, boundingBox,
				projectedPoint.getX());
		float y = TileBoundingBoxUtils.getYPixel(tileHeight, boundingBox,
				projectedPoint.getY());

		if (path == null) {
			path = new Path2D.Double();
			path.moveTo(x, y);
		} else {
			path.lineTo(x, y);
		}

	}

	return path;
}
 

/**
 * Validate Multi Point
 * 
 * @param topGeometry
 * @param multiPoint
 */
private static void validateMultiPoint(Geometry topGeometry,
		MultiPoint multiPoint) {

	TestCase.assertEquals(GeometryType.MULTIPOINT,
			multiPoint.getGeometryType());

	validateZAndM(topGeometry, multiPoint);

	for (Point point : multiPoint.getPoints()) {
		validatePoint(topGeometry, point);
	}

}
 

/**
 * Add an observation to the map as a marker or shape
 *
 * @param observation observation
 * @param markerOptions marker options
 * @param visible     visible state
 * @return map observation
 */
public MapObservation addToMap(Observation observation, MarkerOptions markerOptions, boolean visible) {

    MapObservation observationShape = null;

    Geometry geometry = observation.getGeometry();

    if (geometry.getGeometryType() == GeometryType.POINT) {
        Point point = GeometryUtils.getCentroid(geometry);
        if(markerOptions == null) {
            markerOptions = getMarkerOptions(observation, visible);
            markerOptions.position(new LatLng(point.getY(), point.getX()));
        }
        Marker marker = map.addMarker(markerOptions);

        observationShape = new MapMarkerObservation(observation, marker);
    } else {

        GoogleMapShapeConverter shapeConverter = new GoogleMapShapeConverter();
        GoogleMapShape shape = shapeConverter.toShape(geometry);
        prepareShapeOptions(observation, shape, visible);
        GoogleMapShape mapShape = GoogleMapShapeConverter.addShapeToMap(map, shape);

        observationShape = MapShapeObservation.create(observation, mapShape);
    }

    return observationShape;
}
 

@Override
protected Void doInBackground(Location... locations) {        
	for (Location location : locations) {
        User user = location.getUser();
        if (user == null) {
            continue;
        }

        boolean passesFilter = true;
        for (Filter filter : filters) {
            passesFilter = filter.passesFilter(location);
            if (!passesFilter) {
                break;
            }
        }

        if (passesFilter) {
            Point point = GeometryUtils.getCentroid(location.getGeometry());
            LatLng latLng = new LatLng(point.getY(), point.getX());
            MarkerOptions options = new MarkerOptions().position(latLng).icon(LocationBitmapFactory.bitmapDescriptor(context, location, user));

            publishProgress(new Pair<>(options, new Pair<>(location, user)));
        }
    }
    
    return null;
}
 

@Override
public void onMapReady(final GoogleMap map) {
    ObservationLocation location = getIntent().getParcelableExtra(ObservationEditActivity.LOCATION);
    Point centroid = location.getCentroid();
    LatLng latLng = new LatLng(centroid.getY(), centroid.getX());

    float zoom = getIntent().getFloatExtra(ObservationEditActivity.INITIAL_ZOOM, 0);

    map.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, zoom));

}
 

/**
 * Validate an updated point
 * 
 * @param point
 */
private static void validateUpdatedPoint(Point point) {
	TestCase.assertEquals(POINT_UPDATED_X, point.getX());
	TestCase.assertEquals(POINT_UPDATED_Y, point.getY());
	if (point.hasZ()) {
		TestCase.assertEquals(POINT_UPDATED_Z, point.getZ());
	}
	if (point.hasM()) {
		TestCase.assertEquals(POINT_UPDATED_M, point.getM());
	}
}
 

private static LineString getLineString(double[][] points) {
    LineString lineString = new LineString(false, false);
    for (int i = 0; i < points.length; i++) {
        Point point = new Point(false, false, points[i][0], points[i][1]);
        lineString.addPoint(point);
    }
    return lineString;
}
 

public static void setPoint(FeatureRow featureRow, double x, double y) {
    GeoPackageGeometryData geomData = new GeoPackageGeometryData(
            ProjectionConstants.EPSG_WORLD_GEODETIC_SYSTEM);
    Point point = new Point(false, false, x, y);
    geomData.setGeometry(point);
    featureRow.setGeometry(geomData);
}
 

/**
 * Insert a row into the feature table
 *
 * @param featureDao feature dao
 */
private void insertRow(FeatureDao featureDao) {

    FeatureRow row = featureDao.newRow();
    GeoPackageGeometryData geometry = new GeoPackageGeometryData(
            featureDao.getGeometryColumns().getSrsId());
    geometry.setGeometry(new Point(0, 0));
    row.setGeometry(geometry);
    featureDao.insert(row);

}
 

/**
 * Insert a row into the feature table
 *
 * @param featureDao
 *            feature dao
 */
private void insertRow(FeatureDao featureDao) {

	FeatureRow row = featureDao.newRow();
	GeoPackageGeometryData geometry = new GeoPackageGeometryData(featureDao
			.getGeometryColumns().getSrsId());
	geometry.setGeometry(new Point(0, 0));
	row.setGeometry(geometry);
	featureDao.insert(row);

}
 

/**
 * Transform a WGS84 point to the projection
 *
 * @param point WGS84 point
 * @return projection point
 */
public Point toProjection(Point point) {
    if (projection != null) {
        point = fromWgs84.transform(point);
    }
    return point;
}
 

@Override
protected Void doInBackground(Void... params) {
	CloseableIterator<Location> iterator = null;
	try {
		iterator = iterator();
		while (iterator.hasNext() && !isCancelled()) {
			Location location = iterator.current();
			User user = location.getUser();
			if (user == null) {
				continue;
			}

			Point point = GeometryUtils.getCentroid(location.getGeometry());
			LatLng latLng = new LatLng(point.getY(), point.getX());
			MarkerOptions options = new MarkerOptions().position(latLng).icon(LocationBitmapFactory.bitmapDescriptor(context, location, user));

			publishProgress(new Pair<>(options, new Pair<>(location, user)));
		}
	} catch (SQLException e) {
		e.printStackTrace();
	} finally {
		if (iterator != null) {
			iterator.closeQuietly();
		}
	}

	return null;
}