static public TypedDataset open( FeatureType datatype, String location, ucar.nc2.util.CancelTask task, StringBuilder errlog) throws IOException {
    DatasetUrl durl = DatasetUrl.findDatasetUrl(location);
    NetcdfDataset ncd = NetcdfDataset.acquireDataset(durl, true, task);
    return open( datatype, ncd, task, errlog);
  }
static public TypedDataset open( FeatureType datatype, String location, ucar.nc2.util.CancelTask task, StringBuilder errlog) throws IOException {
    DatasetUrl durl = DatasetUrl.findDatasetUrl(location);
    NetcdfDataset ncd = NetcdfDataset.acquireDataset(durl, true, task);
    return open( datatype, ncd, task, errlog);
  }
static public TypedDataset open ( FeatureType datatype , String location , ucar . nc2 . util . CancelTask task , StringBuilder errlog ) throws IOException { DatasetUrl durl = DatasetUrl . findDatasetUrl ( location ) ; NetcdfDataset ncd = NetcdfDataset . acquireDataset ( durl , true , task ) ; return open ( datatype , ncd , task , errlog ) ; }
Open a dataset as a TypedDataset.

@param datatype open this kind of Typed Dataset; may be null, which means search all factories.
If datatype is not null, only return correct TypedDataset (eg PointObsDataset for DataType.POINT).
@param location URL or file location of the dataset
@param task user may cancel
@param errlog place errors here, may not be null
@return a subclass of TypedDataset
@throws java.io.IOException on io error
Open a dataset as a TypedDataset .