if Quadrant = 1 then
    begin
         if (G2_StepX = true) then
         Begin
              GLLines3 := TGLLines(GLXYZGrid1.AddNewChild(TGLLines));
              GLLines3.NodesAspect := lnaInvisible;
              GLLines3.LineWidth := 2;
              //X
              GLLines3.LineColor.AsWinColor := clBlack;
              GLLines3.AddNode(X_Steppen,0, Y_Steppen);
              y_Steppen:= y_Steppen + 0.1;
              GLLines3.AddNode(X_Steppen, 0, Y_Steppen);

           G2_StepX:= false;
         end;
         if G2_StepY = true then
         Begin
              GLLines3 := TGLLines(GLXYZGrid1.AddNewChild(TGLLines));
              GLLines3.NodesAspect := lnaInvisible;
              GLLines3.LineWidth := 2;
              //Y
              GLLines3.LineColor.AsWinColor := clBlack;
              GLLines3.AddNode(X_Steppen,0, Y_Steppen);
              x_Steppen:= x_Steppen + 0.1;
              GLLines3.AddNode(x_Steppen, 0, Y_Steppen);

           G2_StepY:= false;
         end;
    end;