for (int count=0; count<v.getRank(); count++) {
Range r = ranges.get(count);
if (r == null)
r = new Range( 0, v.getDimension(count).getLength());
if (count>0) sb.append(", ");
sb.append(r.first());
sb.append(':');
sb.append(r.last());
sb.append(':');
sb.append(r.stride());
}