code: @Override
  	public void setXtalInfo(String spaceGroupString, float[] unitCell, double[][] ncsOperMatrixList) {
  		// Now set the xtalographic information
  		PDBCrystallographicInfo pci = new PDBCrystallographicInfo();
  		SpaceGroup spaceGroup = SpaceGroup.parseSpaceGroup(spaceGroupString);
  		pci.setSpaceGroup(spaceGroup);
  		if (unitCell.length > 0) {
  			CrystalCell cell = new CrystalCell(unitCell[0], unitCell[1],
  					unitCell[2], unitCell[3], unitCell[4], unitCell[5]);
  			pci.setCrystalCell(cell);
  			structure.setCrystallographicInfo(pci);
  		}
  
  		pci.setNcsOperators(MmtfUtils.getNcsAsMatrix4d(ncsOperMatrixList));
  	}
docs: /* (non-Javadoc)
  @see org.rcsb.mmtf.decoder.StructureDecoderInterface#
  setXtalInfo(java.lang.String, java.util.List)