Canguro.Controller.Snap.AreaMagnet.RecalcPrimaryDependant C# (CSharp) Метод

        public void RecalcPrimaryDependant(Canguro.View.GraphicView activeView, PointMagnet primaryPoint, LineMagnet[] globalAxes)
        {
            if (primaryPoint != null)
            {
                // Move area to lay on the primaryPoint and to set its direction any canonic
                // plane (X=x, Y=y or Z=z) which is the most paralell to the screen plane
                position = primaryPoint.Position;

                // Get screen plane normal
                Vector3 s0 = screenNormal[0], s1 = screenNormal[1], sNormal;
                activeView.Unproject(ref s0);
                activeView.Unproject(ref s1);
                sNormal = s0 - s1;

                // Assign the area normal to the most paralell canonical plane
                // (giving priority to the Z plane)
                int maxCosIndex = 2;
                float cosX, cosY, cosZ;
                cosX = Vector3.Dot(sNormal, globalAxes[0].Direction);
                cosY = Vector3.Dot(sNormal, globalAxes[1].Direction);
                cosZ = Vector3.Dot(sNormal, globalAxes[2].Direction);

                if (Math.Abs(cosZ) < minZPlaneAngle)
                    maxCosIndex = (cosX >= cosY) ? ((cosX > cosZ) ? 0 : 2) : ((cosY > cosZ) ? 1 : 2);

                normal = globalAxes[maxCosIndex].Direction;
            }
            else
            {
                position = Vector3.Empty;
                normal = globalAxes[2].Direction;
            }
        }

 private void recalcPrimaryDependant(GraphicView activeView)
 {
     if (points.NeedRecalcPrimaryPointDependant)
     {
         lines.RecalcPrimaryDependant(activeView, points.PrimaryPoint);
         area.RecalcPrimaryDependant(activeView, points.PrimaryPoint, lines.GlobalAxes);
         points.RecalcPrimaryDependant(activeView);
     }
 }