protected IEnumerable <HeightSegmentPair> GetHeightSegmentPairs(
IEnumerable <SegmentProxy> segments)
{
List <HeightSegment> horizontalSegments = ReadHorizontalSegments(segments);
horizontalSegments.Sort(HeightSegment.CompareHeight);
List <HeightSegment> sortedHorizontalSegments = horizontalSegments;
for (var baseIndex = 0; baseIndex < sortedHorizontalSegments.Count; baseIndex++)
{
HeightSegment baseSegment = sortedHorizontalSegments[baseIndex];
double baseHeight = baseSegment.Height;
double maxSearchHeight = baseHeight + _nearHeight;
for (int nearIndex = baseIndex + 1;
nearIndex < sortedHorizontalSegments.Count;
nearIndex++)
{
HeightSegment candidate = sortedHorizontalSegments[nearIndex];
if (candidate.Height < maxSearchHeight)
{
yield return(new HeightSegmentPair(baseSegment, candidate));
}
else
{
break;
}
}
}
}
public HeightSegmentPair([NotNull] HeightSegment baseSegment,
[NotNull] HeightSegment nearSegment)
{
_baseSegment = baseSegment;
_nearSegment = nearSegment;
HeightDifference = Math.Abs(baseSegment.Height - nearSegment.Height);
}
public static int CompareHeight(HeightSegment x, HeightSegment y)
{
return(x._height.CompareTo(y._height));
}
