@Test
void testTranspose(){

    String inFile = new File(getClass().getResource(
            "/normalizer/qpe.dss").getFile()).toString();
    String variableName = "///PRECIPITATION/02JAN2017:1200/02JAN2017:1300//";
    DataReader reader = DataReader.builder()
            .path(inFile)
            .variable(variableName)
            .build();
    List<VortexGrid> grids = reader.getDtos().stream().map(grid -> (VortexGrid)grid).collect(Collectors.toList());
    VortexGrid grid = grids.get(0);
    Transposer transposer = Transposer.builder()
            .grid(grid)
            .angle(30)
            .build();
    transposer.transpose();
}