/// <summary> /// Gets the space edge set. /// </summary> /// <param name="box"></param> /// <returns></returns> public static List <Line> GetSpaceEdgeList(this BoundingBoxXYZ box) { if (box == null) { throw new ArgumentNullException(nameof(box)); } var vectors = box.GetSpaceVectorList(); var p1 = vectors[0]; var p2 = vectors[1]; var p3 = vectors[2]; var p4 = vectors[3]; var p5 = vectors[4]; var p6 = vectors[5]; var p7 = vectors[6]; var p8 = vectors[7]; var p12 = Line.CreateBound(p1, p2); var p14 = Line.CreateBound(p1, p4); var p15 = Line.CreateBound(p1, p5); var p23 = Line.CreateBound(p2, p3); var p24 = Line.CreateBound(p2, p4); var p34 = Line.CreateBound(p3, p4); var p37 = Line.CreateBound(p3, p7); var p48 = Line.CreateBound(p4, p8); var p56 = Line.CreateBound(p5, p6); var p58 = Line.CreateBound(p5, p8); var p67 = Line.CreateBound(p6, p7); var p78 = Line.CreateBound(p7, p8); return(new List <Line> { p12, p14, p15, p23, p24, p34, p37, p48, p56, p58, p67, p78 }); }