Java Projection类代码示例

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Constructor with specified projection, see
 * {@link FeatureDao#getProjection}
 *
 * @param projection
 */
public GoogleMapShapeConverter(Projection projection) {
    this.projection = projection;
    if (projection != null) {
        toWgs84 = projection
                .getTransformation(ProjectionConstants.EPSG_WORLD_GEODETIC_SYSTEM);
        Projection wgs84 = toWgs84.getToProjection();
        fromWgs84 = wgs84.getTransformation(projection);
        toWebMercator = projection.getTransformation(ProjectionConstants.EPSG_WEB_MERCATOR);
        Projection webMercator = toWebMercator.getToProjection();
        fromWebMercator = webMercator.getTransformation(projection);
    } else {
        toWgs84 = null;
        fromWgs84 = null;
        toWebMercator = null;
        fromWebMercator = null;
    }
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * {@inheritDoc}
 */
@Override
public BoundingBox getBoundingBox() {
    Contents contents = geometryColumns.getContents();

    BoundingBox boundingBox = contents.getBoundingBox();
    if (boundingBox != null) {
        Projection contentsProjection = ProjectionFactory
                .getProjection(contents.getSrs());
        if (!projection.equals(contentsProjection)) {
            ProjectionTransform transform = contentsProjection
                    .getTransformation(projection);
            boundingBox = transform.transform(boundingBox);
        }
    }

    return boundingBox;
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Query for feature index results within the bounding box in
 * the provided projection
 *
 * @param boundingBox bounding box
 * @param projection  projection
 * @return feature index results, close when done
 */
public FeatureIndexResults query(BoundingBox boundingBox, Projection projection) {
    FeatureIndexResults results = null;
    switch (getIndexedType()) {
        case GEOPACKAGE:
            long count = featureTableIndex.count(boundingBox, projection);
            CloseableIterator<GeometryIndex> geometryIndices = featureTableIndex.query(boundingBox, projection);
            results = new FeatureIndexGeoPackageResults(featureTableIndex, count, geometryIndices);
            break;
        case METADATA:
            Cursor geometryMetadata = featureIndexer.query(boundingBox, projection);
            results = new FeatureIndexMetadataResults(featureIndexer, geometryMetadata);
            break;
    }
    return results;
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Constructor
 *
 * @param context     app context
 * @param geoPackage  GeoPackage
 * @param tableName   table name
 * @param tileUrl     tile url
 * @param minZoom     min zoom
 * @param maxZoom     max zoom
 * @param boundingBox tiles bounding box
 * @param projection  tiles projection
 * @since 1.3.0
 */
public UrlTileGenerator(Context context, GeoPackage geoPackage,
                        String tableName, String tileUrl, int minZoom, int maxZoom, BoundingBox boundingBox, Projection projection) {
    super(context, geoPackage, tableName, minZoom, maxZoom, boundingBox, projection);

    try {
        this.tileUrl = URLDecoder.decode(tileUrl, "UTF-8");
    } catch (UnsupportedEncodingException e) {
        throw new GeoPackageException("Failed to decode tile url: "
                + tileUrl, e);
    }

    this.urlHasXYZ = hasXYZ(tileUrl);
    this.urlHasBoundingBox = hasBoundingBox(tileUrl);

    if (!this.urlHasXYZ && !this.urlHasBoundingBox) {
        throw new GeoPackageException(
                "URL does not contain x,y,z or bounding box variables: "
                        + tileUrl);
    }
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Constructor
 * 
 * @param geoPackage
 *            GeoPackage
 * @param tileMatrixSet
 *            tile matrix set
 * @param width
 *            specified results width
 * @param height
 *            specified results height
 * @param requestProjection
 *            request projection
 */
protected ElevationTilesCore(GeoPackageCore geoPackage,
		TileMatrixSet tileMatrixSet, Integer width, Integer height,
		Projection requestProjection) {
	super(geoPackage);

	this.tileMatrixSet = tileMatrixSet;
	griddedCoverageDao = geoPackage.getGriddedCoverageDao();
	griddedTileDao = geoPackage.getGriddedTileDao();
	queryGriddedCoverage();

	this.width = width;
	this.height = height;
	this.requestProjection = requestProjection;
	elevationProjection = ProjectionFactory.getProjection(tileMatrixSet
			.getSrs());
	elevationBoundingBox = tileMatrixSet.getBoundingBox();

	// Check if the projections have the same units
	if (requestProjection != null) {
		sameProjection = (requestProjection.getUnit().name
				.equals(elevationProjection.getUnit().name));
	} else {
		sameProjection = true;
	}
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Get the approximate zoom level of where the bounding box of the user data
 * fits into the world
 * 
 * @return zoom level
 * @since 1.1.0
 */
public int getZoomLevel() {
	Projection projection = getProjection();
	if (projection == null) {
		throw new GeoPackageException(
				"No projection was set which is required to determine the zoom level");
	}
	int zoomLevel = 0;
	BoundingBox boundingBox = getBoundingBox();
	if (boundingBox != null) {
		if (projection.getUnit() instanceof DegreeUnit) {
			boundingBox = TileBoundingBoxUtils
					.boundDegreesBoundingBoxWithWebMercatorLimits(boundingBox);
		}
		ProjectionTransform webMercatorTransform = projection
				.getTransformation(ProjectionConstants.EPSG_WEB_MERCATOR);
		BoundingBox webMercatorBoundingBox = webMercatorTransform
				.transform(boundingBox);
		zoomLevel = TileBoundingBoxUtils
				.getZoomLevel(webMercatorBoundingBox);
	}
	return zoomLevel;
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Load tiles from a URL
 *
 * @param activity
 * @param callback
 * @param active
 * @param database
 * @param tableName
 * @param tileUrl
 * @param minZoom
 * @param maxZoom
 * @param compressFormat
 * @param compressQuality
 * @param googleTiles
 * @param boundingBox
 * @param epsg
 */
public static void loadTiles(Activity activity, ILoadTilesTask callback,
                             GeoPackageDatabases active, String database, String tableName,
                             String tileUrl, int minZoom, int maxZoom,
                             CompressFormat compressFormat, Integer compressQuality,
                             boolean googleTiles, BoundingBox boundingBox, long epsg) {

    GeoPackageManager manager = GeoPackageFactory.getManager(activity);
    GeoPackage geoPackage = manager.open(database);

    Projection projection = ProjectionFactory.getProjection(epsg);
    BoundingBox bbox = transform(boundingBox, projection);

    TileGenerator tileGenerator = new UrlTileGenerator(activity, geoPackage,
            tableName, tileUrl, minZoom, maxZoom, bbox, projection);
    setTileGenerator(activity, tileGenerator, minZoom, maxZoom, compressFormat, compressQuality, googleTiles, boundingBox);

    loadTiles(activity, callback, active, geoPackage, tableName, tileGenerator);
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * {@inheritDoc}
 */
@Override
public BoundingBox getBoundingBox() {
	Contents contents = geometryColumns.getContents();
	Projection contentsProjection = ProjectionFactory
			.getProjection(contents.getSrs());

	BoundingBox boundingBox = contents.getBoundingBox();
	if (!projection.equals(contentsProjection)) {
		ProjectionTransform transform = contentsProjection
				.getTransformation(projection);
		boundingBox = transform.transform(boundingBox);
	}

	return boundingBox;
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Constructor
 * 
 * @param geoPackage
 *            GeoPackage
 * @param tableName
 *            table name
 * @param tileUrl
 *            tile url
 * @param minZoom
 *            min zoom
 * @param maxZoom
 *            max zoom
 * @param boundingBox
 *            tiles bounding box
 * @param projection
 *            tiles projection
 * @since 1.2.0
 */
public UrlTileGenerator(GeoPackage geoPackage, String tableName,
		String tileUrl, int minZoom, int maxZoom, BoundingBox boundingBox,
		Projection projection) {
	super(geoPackage, tableName, minZoom, maxZoom, boundingBox, projection);

	try {
		this.tileUrl = URLDecoder.decode(tileUrl, "UTF-8");
	} catch (UnsupportedEncodingException e) {
		throw new GeoPackageException("Failed to decode tile url: "
				+ tileUrl, e);
	}

	this.urlHasXYZ = hasXYZ(tileUrl);
	this.urlHasBoundingBox = hasBoundingBox(tileUrl);

	if (!this.urlHasXYZ && !this.urlHasBoundingBox) {
		throw new GeoPackageException(
				"URL does not contain x,y,z or bounding box variables: "
						+ tileUrl);
	}
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Constructor with specified projection, see
      *
 * @param projection
 */
public OsmMapShapeConverter(Projection projection, MarkerOptions options, PolylineOptions polylineOptions,
                            PolygonOptions polygonOptions) {
    Log.i(IMapView.LOGTAG, "Geopackage support is BETA. Please report any issues");
    this.projection = projection;
    this.polylineOptions=polylineOptions;
    this.polygonOptions=polygonOptions;
    this.makerOptions=options;
    if (projection != null) {
        toWgs84 = projection
            .getTransformation(ProjectionConstants.EPSG_WORLD_GEODETIC_SYSTEM);
        Projection wgs84 = toWgs84.getToProjection();
        fromWgs84 = wgs84.getTransformation(projection);
    } else {
        toWgs84 = null;
        fromWgs84 = null;
    }
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Build a feature results information message and close the results
 *
 * @param results       feature index results
 * @param tolerance     distance tolerance
 * @param clickLocation map click location
 * @param projection    desired geometry projection
 * @return results message or null if no results
 */
public String buildResultsInfoMessageAndClose(FeatureIndexResults results, double tolerance, LatLng clickLocation, Projection projection) {
    String message = null;

    try {
        message = buildResultsInfoMessage(results, tolerance, clickLocation, projection);
    } finally {
        results.close();
    }

    return message;
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Project the geometry into the provided projection
 *
 * @param geometryData geometry data
 * @param projection   projection
 */
public void projectGeometry(GeoPackageGeometryData geometryData, Projection projection) {

    if (geometryData.getGeometry() != null) {

        try {
            SpatialReferenceSystemDao srsDao = DaoManager.createDao(featureDao.getDb().getConnectionSource(), SpatialReferenceSystem.class);
            int srsId = geometryData.getSrsId();
            SpatialReferenceSystem srs = srsDao.queryForId((long) srsId);

            if (!projection.equals(srs.getOrganization(), srs.getOrganizationCoordsysId())) {

                Projection geomProjection = ProjectionFactory.getProjection(srs);
                ProjectionTransform transform = geomProjection.getTransformation(projection);

                Geometry projectedGeometry = transform.transform(geometryData.getGeometry());
                geometryData.setGeometry(projectedGeometry);
                SpatialReferenceSystem projectionSrs = srsDao.getOrCreateCode(projection.getAuthority(), Long.parseLong(projection.getCode()));
                geometryData.setSrsId((int) projectionSrs.getSrsId());
            }
        } catch (SQLException e) {
            throw new GeoPackageException("Failed to project geometry to projection with Authority: "
                    + projection.getAuthority() + ", Code: " + projection.getCode(), e);
        }
    }

}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Query for features in the bounding box
 *
 * @param boundingBox query bounding box
 * @param projection  bounding box projection
 * @return feature index results, must be closed
 */
public FeatureIndexResults queryFeatures(BoundingBox boundingBox, Projection projection) {

    if (projection == null) {
        projection = ProjectionFactory.getProjection(ProjectionConstants.EPSG_WORLD_GEODETIC_SYSTEM);
    }

    // Query for features
    FeatureIndexManager indexManager = featureTiles.getIndexManager();
    if (indexManager == null) {
        throw new GeoPackageException("Index Manager is not set on the Feature Tiles and is required to query indexed features");
    }
    FeatureIndexResults results = indexManager.query(boundingBox, projection);
    return results;
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Perform a query based upon the map click location and build a info message
 *
 * @param latLng      location
 * @param zoom        current zoom level
 * @param boundingBox click bounding box
 * @param tolerance   tolerance distance
 * @param projection  desired geometry projection
 * @return information message on what was clicked, or null
 */
private String buildMapClickMessage(LatLng latLng, double zoom, BoundingBox boundingBox, double tolerance, Projection projection) {
    String message = null;

    // Verify the features are indexed and we are getting information
    if (isIndexed() && (maxFeaturesInfo || featuresInfo)) {

        if (isOnAtCurrentZoom(zoom, latLng)) {

            // Get the number of features in the tile location
            long tileFeatureCount = tileFeatureCount(latLng, zoom);

            // If more than a configured max features to draw
            if (isMoreThanMaxFeatures(tileFeatureCount)) {

                // Build the max features message
                if (maxFeaturesInfo) {
                    message = buildMaxFeaturesInfoMessage(tileFeatureCount);
                }

            }
            // Else, query for the features near the click
            else if (featuresInfo) {

                // Query for results and build the message
                FeatureIndexResults results = queryFeatures(boundingBox, projection);
                message = featureInfoBuilder.buildResultsInfoMessageAndClose(results, tolerance, latLng, projection);

            }

        }
    }

    return message;
}
 

import mil.nga.geopackage.projection.Projection; //导入依赖的package包/类
/**
 * Perform a query based upon the map click location and build feature table data
 *
 * @param latLng      location
 * @param zoom        current zoom level
 * @param boundingBox click bounding box
 * @param tolerance   distance tolerance
 * @param projection  desired geometry projection
 * @return table data on what was clicked, or null
 */
private FeatureTableData buildMapClickTableData(LatLng latLng, double zoom, BoundingBox boundingBox, double tolerance, Projection projection) {
    FeatureTableData tableData = null;

    // Verify the features are indexed and we are getting information
    if (isIndexed() && (maxFeaturesInfo || featuresInfo)) {

        if (isOnAtCurrentZoom(zoom, latLng)) {

            // Get the number of features in the tile location
            long tileFeatureCount = tileFeatureCount(latLng, zoom);

            // If more than a configured max features to draw
            if (isMoreThanMaxFeatures(tileFeatureCount)) {

                // Build the max features message
                if (maxFeaturesInfo) {
                    tableData = new FeatureTableData(featureTiles.getFeatureDao().getTableName(), tileFeatureCount);
                }

            }
            // Else, query for the features near the click
            else if (featuresInfo) {

                // Query for results and build the message
                FeatureIndexResults results = queryFeatures(boundingBox, projection);
                tableData = featureInfoBuilder.buildTableDataAndClose(results, tolerance, latLng, projection);
            }

        }
    }

    return tableData;
}