How to use

getRefDate

method

in

ucar.nc2.ft2.coverage.CoverageCoordAxis1D

private void addAdjustedTimeCoords(SubsetParams result, CoverageCoordAxis1D axis, int coordIdx, CalendarDate runtime) {
 // this must be adjusted to be offset from the runtime.
 // adjust = end - start
 // axisCoordOffset + axis.reftime = offset + runtime
 // offset = axisCoordOffset + axis.reftime - runtime
 // offset = axisCoordOffset + adjust
 // offset = axisCoordOffset + end - start = axisCoordOffset + axis.reftime - runtime
 // therefore: end = reftime, start = runtime
 double adjust = axis.getOffsetInTimeUnits(runtime, axis.getRefDate());
 if (axis.isInterval()) {
  double[] adjustVal = new double[] {axis.getCoordEdge1(coordIdx)+adjust, axis.getCoordEdge2(coordIdx)+adjust};
  result.setTimeOffsetIntv(adjustVal);
  double mid = (adjustVal[0]+adjustVal[1]) / 2.0;
  result.set(SubsetParams.timeOffsetUnit, axis.makeDateInTimeUnits(runtime, mid)); // validation
  result.set(SubsetParams.timeOffsetUnit, axis.getCalendarDateUnit()); // validation
 } else {
  double adjustVal = axis.getCoordMidpoint(coordIdx) + adjust;
  result.setTimeOffset(adjustVal);
  result.set(SubsetParams.timeOffsetDate, axis.makeDateInTimeUnits(runtime, adjustVal)); // validation
  result.set(SubsetParams.timeOffsetUnit, axis.getCalendarDateUnit()); // validation
 }
}

double offset = timeAxisSubset.getOffsetInTimeUnits(runAxis.getRefDate(), timeAxisSubset.getRefDate());

double offset = timeAxisSubset.getOffsetInTimeUnits(runAxis.getRefDate(), timeAxisSubset.getRefDate());