axisIds[0] = (String) ArgChecker.isNotNull(request.getAxisId(), "axisId");
// TODO: implement validate()
//mipMapChain.validate();
MinIntervalArrayFunction minIntervalFn = new MinIntervalArrayFunction();
rawData.getDomain().execFunction(minIntervalFn);
minDomainInterval = minIntervalFn.getMinInterval();
// Assign min/max range-Y values
rangeIntervals = new Interval[mipMapChain.getRangeTupleSize()];
ExtremaArrayFunction extremaFn = new ExtremaArrayFunction();
for (int i = 0; i < rangeIntervals.length; i++) {