public override VirgisFeature AddVertex(Vector3 position)
{
int seg = curve.NearestSegment(position);
LineSegment segment = VertexTable.Find(item => item.Vertex == seg).Line;
return(AddVertex(segment, position));
}
/// <summary>
/// Estimates the nearest point on a DCurve to the centroid of that DCurve
/// </summary>
/// <param name="curve">g3.DCurve</param>
/// <returns>g3.Vector3d Centroid</returns>
public static Vector3d CenterMark(this DCurve3 curve)
{
Vector3d center = curve.Center();
return(curve.GetSegment(curve.NearestSegment(center)).NearestPoint(center));
}