cdm/src/main/java/ucar/nc2/iosp/nids/Nidsheader.java
int pcode_5( int[] pos, int hoff, int len, boolean isZ )
    {
      ArrayList dims =  new ArrayList();
      //int vlen =len;

      Dimension sDim = new Dimension("windBarbSize", len);
      ncfile.addDimension( null, sDim);
      dims.add( sDim);

      Structure dist = new Structure(ncfile, null, null, "vectorArrow");
      dist.setDimensions(dims);
      ncfile.addVariable(null, dist);
      dist.addAttribute( new Attribute(CDM.LONG_NAME, "Vector Arrow Data"));

      Variable i0 = new Variable(ncfile, null, dist, "x_start");
      i0.setDimensions((String)null);
      i0.setDataType(DataType.SHORT);
      i0.addAttribute( new Attribute(CDM.UNITS, "KM"));
      dist.addMemberVariable(i0);
      Variable j0 = new Variable(ncfile, null, dist, "y_start");
      j0.setDimensions((String)null);
      j0.setDataType(DataType.SHORT);
      j0.addAttribute( new Attribute(CDM.UNITS, "KM"));
      dist.addMemberVariable(j0);
      Variable direct = new Variable(ncfile, null, dist, "direction");
      direct.setDimensions((String)null);
      direct.setDataType(DataType.SHORT);
      direct.addAttribute( new Attribute(CDM.UNITS, "degree"));
      dist.addMemberVariable(direct);
      Variable speed = new Variable(ncfile, null, dist, "arrowLength");
      speed.setDimensions((String)null);
      speed.setDataType(DataType.SHORT);
      speed.addAttribute( new Attribute(CDM.UNITS, "pixels"));
      dist.addMemberVariable(speed);
      Variable speed1 = new Variable(ncfile, null, dist, "arrowHeadLength");
      speed1.setDimensions((String)null);
      speed1.setDataType(DataType.SHORT);
      speed1.addAttribute( new Attribute(CDM.UNITS, "pixels"));
      dist.addMemberVariable(speed1);

      int[] pos1 = new int[len];
      System.arraycopy(pos, 0, pos1, 0, len);
      dist.setSPobject( new Vinfo (0, 0, 0, 0, hoff, 0, isR, isZ, pos1, null, 4, 0));

      return 1;
    }
int pcode_5( int[] pos, int hoff, int len, boolean isZ )
    {
      ArrayList dims =  new ArrayList();
      //int vlen =len;

      Dimension sDim = new Dimension("windBarbSize", len);
      ncfile.addDimension( null, sDim);
      dims.add( sDim);

      Structure dist = new Structure(ncfile, null, null, "vectorArrow");
      dist.setDimensions(dims);
      ncfile.addVariable(null, dist);
      dist.addAttribute( new Attribute(CDM.LONG_NAME, "Vector Arrow Data"));

      Variable i0 = new Variable(ncfile, null, dist, "x_start");
      i0.setDimensions((String)null);
      i0.setDataType(DataType.SHORT);
      i0.addAttribute( new Attribute(CDM.UNITS, "KM"));
      dist.addMemberVariable(i0);
      Variable j0 = new Variable(ncfile, null, dist, "y_start");
      j0.setDimensions((String)null);
      j0.setDataType(DataType.SHORT);
      j0.addAttribute( new Attribute(CDM.UNITS, "KM"));
      dist.addMemberVariable(j0);
      Variable direct = new Variable(ncfile, null, dist, "direction");
      direct.setDimensions((String)null);
      direct.setDataType(DataType.SHORT);
      direct.addAttribute( new Attribute(CDM.UNITS, "degree"));
      dist.addMemberVariable(direct);
      Variable speed = new Variable(ncfile, null, dist, "arrowLength");
      speed.setDimensions((String)null);
      speed.setDataType(DataType.SHORT);
      speed.addAttribute( new Attribute(CDM.UNITS, "pixels"));
      dist.addMemberVariable(speed);
      Variable speed1 = new Variable(ncfile, null, dist, "arrowHeadLength");
      speed1.setDimensions((String)null);
      speed1.setDataType(DataType.SHORT);
      speed1.addAttribute( new Attribute(CDM.UNITS, "pixels"));
      dist.addMemberVariable(speed1);

      int[] pos1 = new int[len];
      System.arraycopy(pos, 0, pos1, 0, len);
      dist.setSPobject( new Vinfo (0, 0, 0, 0, hoff, 0, isR, isZ, pos1, null, 4, 0));

      return 1;
    }
construct a dataset for vector arrow data packet with code 5


@param pos, size, code, hoff, len, isZ

@return  1 if successful