/**
* Calculate error time, between last through this to next,
* if this node is removed. This metric provides for fair thinning
* (tendency to to result in equal time steps)
*
* @param last Point previous in time to this node
* @param node This node
* @param next Point succeeding this node
*
* @return Time delta if this node is thinned
*/
static unsigned TimeMetric(const TracePoint &last, const TracePoint &node,
const TracePoint &next) {
return next.DeltaTime(last)
- std::min(next.DeltaTime(node), node.DeltaTime(last));
}
