Examples with TileMatrix mil.nga.geopackage.tiles.matrix.TileMatrix used on opensource projects

Example 1 with TileMatrix

use of mil.nga.geopackage.tiles.matrix.TileMatrix in project geopackage-android-map by ngageoint.

the class TestSetupTeardown method setUpCreateTiles.

/**
 * Set up create for tiles test
 *
 * @param testContext
 * @param geoPackage
 * @throws SQLException
 * @throws IOException
 */
private static void setUpCreateTiles(Context testContext, GeoPackage geoPackage) throws SQLException, IOException {
    // Get existing SRS objects
    SpatialReferenceSystemDao srsDao = geoPackage.getSpatialReferenceSystemDao();
    SpatialReferenceSystem epsgSrs = srsDao.queryForId(4326l);
    TestCase.assertNotNull(epsgSrs);
    // Create the Tile Matrix Set and Tile Matrix tables
    geoPackage.createTileMatrixSetTable();
    geoPackage.createTileMatrixTable();
    // Create new Contents
    ContentsDao contentsDao = geoPackage.getContentsDao();
    Contents contents = new Contents();
    contents.setTableName("test_tiles");
    contents.setDataType(ContentsDataType.TILES);
    contents.setIdentifier("test_tiles");
    // contents.setDescription("");
    // contents.setLastChange(new Date());
    contents.setMinX(-180.0);
    contents.setMinY(-90.0);
    contents.setMaxX(180.0);
    contents.setMaxY(90.0);
    contents.setSrs(epsgSrs);
    // Create the user tile table
    TileTable tileTable = TestUtils.buildTileTable(contents.getTableName());
    geoPackage.createTileTable(tileTable);
    // Create the contents
    contentsDao.create(contents);
    // Create new Tile Matrix Set
    TileMatrixSetDao tileMatrixSetDao = geoPackage.getTileMatrixSetDao();
    TileMatrixSet tileMatrixSet = new TileMatrixSet();
    tileMatrixSet.setContents(contents);
    tileMatrixSet.setSrs(contents.getSrs());
    tileMatrixSet.setMinX(contents.getMinX());
    tileMatrixSet.setMinY(contents.getMinY());
    tileMatrixSet.setMaxX(contents.getMaxX());
    tileMatrixSet.setMaxY(contents.getMaxY());
    tileMatrixSetDao.create(tileMatrixSet);
    // Create new Tile Matrix rows
    TileMatrixDao tileMatrixDao = geoPackage.getTileMatrixDao();
    int matrixWidthAndHeight = 2;
    double pixelXSize = 69237.2;
    double pixelYSize = 68412.1;
    // Read the asset tile to bytes and convert to bitmap
    byte[] assetTileData = TestUtils.getAssetFileBytes(testContext, TestConstants.TILE_FILE_NAME);
    Bitmap bitmap = BitmapConverter.toBitmap(assetTileData);
    // Get the width and height of the bitmap
    final int tileWidth = bitmap.getWidth();
    final int tileHeight = bitmap.getHeight();
    // Compress the bitmap back to bytes and use those for the test
    byte[] tileData = BitmapConverter.toBytes(bitmap, CompressFormat.valueOf(TestConstants.TILE_FILE_NAME_EXTENSION.toUpperCase()));
    for (int zoom = 0; zoom < CREATE_TILE_MATRIX_COUNT; zoom++) {
        TileMatrix tileMatrix = new TileMatrix();
        tileMatrix.setContents(contents);
        tileMatrix.setZoomLevel(zoom);
        tileMatrix.setMatrixWidth(matrixWidthAndHeight);
        tileMatrix.setMatrixHeight(matrixWidthAndHeight);
        tileMatrix.setTileWidth(tileWidth);
        tileMatrix.setTileHeight(tileHeight);
        tileMatrix.setPixelXSize(pixelXSize);
        tileMatrix.setPixelYSize(pixelYSize);
        tileMatrixDao.create(tileMatrix);
        matrixWidthAndHeight *= 2;
        pixelXSize /= 2.0;
        pixelYSize /= 2.0;
        // Populate the tile table with rows
        TestUtils.addRowsToTileTable(geoPackage, tileMatrix, tileData);
    }
}