static public IEnumerable <T> OrderByNearestPointOnLine <T>(
this IEnumerable <T> sequence,
Vektor2DInt lineVector,
Func <T, Vektor2DInt?> getPointRepresentingElement)
{
var LineVectorLength = lineVector.Length();
if (null == getPointRepresentingElement || LineVectorLength < 1)
{
return(sequence);
}
var LineVectorNormalizedMilli = (lineVector * 1000) / LineVectorLength;
return
(sequence?.Select(element =>
{
Int64?LocationOnLine = null;
var PointRepresentingElement = getPointRepresentingElement(element);
if (PointRepresentingElement.HasValue)
{
LocationOnLine = PointRepresentingElement.Value.A * LineVectorNormalizedMilli.A + PointRepresentingElement.Value.B * LineVectorNormalizedMilli.B;
}
return new { Element = element, LocationOnLine = LocationOnLine };
})
?.OrderBy(elementAndLocation => elementAndLocation.LocationOnLine)
?.Select(elementAndLocation => (T)elementAndLocation.Element));
}
public static IEnumerable <T> OrderByNearestPointOnLine <T>(this IEnumerable <T> sequence, Vektor2DInt lineVector, Func <T, Vektor2DInt?> getPointRepresentingElement)
{
long num = lineVector.Length();
if (getPointRepresentingElement == null || num < 1)
{
return(sequence);
}
Vektor2DInt LineVectorNormalizedMilli = lineVector * 1000L / num;
return(sequence?.Select(delegate(T element)
{
long?locationOnLine = null;
Vektor2DInt?vektor2DInt = getPointRepresentingElement(element);
if (vektor2DInt.HasValue)
{
locationOnLine = vektor2DInt.Value.A * LineVectorNormalizedMilli.A + vektor2DInt.Value.B * LineVectorNormalizedMilli.B;
}
return new
{
Element = element,
LocationOnLine = locationOnLine
};
})?.OrderBy(elementAndLocation => elementAndLocation.LocationOnLine)?.Select(elementAndLocation => elementAndLocation.Element));
}