static double CalculateCentroidPairSlopeNoDirection(CentroidPair centroidPair)
{
//calculate centroid pair slope
//p
centroidPair.p.CalculateCentroid(out float x0, out float y0);
//q
centroidPair.q.CalculateCentroid(out float x1, out float y1);
//return slop angle no direction,we don't care direction of vector
return(Math.Abs(Math.Atan2(Math.Abs(y1 - y0), Math.Abs(x1 - x0))));
}
/// <summary>
/// add centroid pair to current centroid line
/// </summary>
/// <param name="pair"></param>
public void AddCentroidPair(CentroidPair pair)
{
//add centroid pair to line
_currentLine.AddCentroidPair(pair);
}
/// <summary>
/// add a centroid pair
/// </summary>
/// <param name="pair"></param>
public void AddCentroidPair(CentroidPair pair)
{
_centroid_pairs.Add(pair);
}
