private static bool isInZone(IList<double[]> image, IntervalsGoal goal, int index)
{
for (int i = 0; i < image.Count; i++)
{
if (image[i][index] < goal.Intervals[i][0] ||
image[i][index] > goal.Intervals[i][1])
{
return false;
}
}
return true;
}
private static Result calculateActivityZoneGoal(IActivity activity, IntervalsGoal goal,
ActInfo act, double[] domain, IList<double[]> image)
{
bool foundAny = false;
int back = 0, front = 0;
int bestBack = 0, bestFront = 0;
double best;
if (goal.UpperBound) best = double.MinValue;
else best = double.MaxValue;
int length = act.Length;
while (front < length)
{
bool inWindow = true;
for (int i = 0; i < image.Count; i++)
{
if (image[i][back] < goal.Intervals[i][0] ||
image[i][front] > goal.Intervals[i][1])
{
inWindow = false;
break;
}
}
if (inWindow)
{
double domainDiff = domain[front] - domain[back];
int upperBound = goal.UpperBound ? 1 : -1;
if (upperBound*best < upperBound*domainDiff &&
(goal.Domain == GoalParameter.Elevation ||
act.validElevation && (act.aElevation[front] - act.aElevation[back]) / (act.aDistance[front] - act.aDistance[back]) >= Settings.MinGrade))
{
foundAny = true;
best = domainDiff;
bestBack = back;
bestFront = front;
}
if (back == front ||
(front < length - 1 && isInZone(image, goal, front + 1)))
front++;
else back++;
}
else
{
if (back == front)
{
if (front < length - 1 && !isInZone(image, goal, front + 1))
back++;
front++;
}
else back++;
}
}
if (foundAny)
{
return new Result(goal, activity, act.Pauses, domain[bestBack], domain[bestFront], act.aTime[bestBack], act.aTime[bestFront],
act.aDistance[bestBack], act.aDistance[bestFront], act.aElevation[bestBack], act.aElevation[bestFront],
act.aDateTime[bestBack], act.aDateTime[bestFront]);
}
return null;
}