An ordinate dimension: the distance from a single reference point along one axis, labelled with
a leader. Machining drawings prefer these to chained linear dimensions because every measurement
references the same datum, so tolerances do not accumulate.
An ordinate dimension: the distance from a single reference point along one axis, labelled with a leader. Machining drawings prefer these to chained linear dimensions because every measurement references the same datum, so tolerances do not accumulate.