cdm/src/main/java/ucar/nc2/iosp/sigmet/SigmetIOServiceProvider.java
public void open(ucar.unidata.io.RandomAccessFile raf, ucar.nc2.NetcdfFile ncfile,
                   ucar.nc2.util.CancelTask cancelTask) throws java.io.IOException {
    super.open(raf, ncfile, cancelTask);
    //java.util.Map<String, Number> recHdr=new java.util.HashMap<String, Number>();
    java.util.Map<String, String> hdrNames = new java.util.HashMap<String, String>();
    volScan = new SigmetVolumeScan(raf, ncfile, varList);
    this.varList = init(raf, ncfile, hdrNames);

    // doData(raf, ncfile, varList);
    // raf.close();
    // this.ncfile.close();
  }
public void open(ucar.unidata.io.RandomAccessFile raf, ucar.nc2.NetcdfFile ncfile,
                   ucar.nc2.util.CancelTask cancelTask) throws java.io.IOException {
    super.open(raf, ncfile, cancelTask);
    //java.util.Map<String, Number> recHdr=new java.util.HashMap<String, Number>();
    java.util.Map<String, String> hdrNames = new java.util.HashMap<String, String>();
    volScan = new SigmetVolumeScan(raf, ncfile, varList);
    this.varList = init(raf, ncfile, hdrNames);

    // doData(raf, ncfile, varList);
    // raf.close();
    // this.ncfile.close();
  }
Open existing file, and populate ncfile with it.