Extracting points from a 3D Spline

Hello I have plotted a 3D spline by the following code:

   x=[sx pathx endx];
  y=[sy pathy endy];
  z=[sz pathz endz];
  xyz = [x;y; z];
  plot3(xyz(1,:),xyz(2,:),xyz(3,:),'ro','LineWidth',2);
  %text(xyz(1,:),xyz(2,:),xyz(3,:),[repmat('  ',npts,1), num2str((1:npts)')])
  %set(gca,'XTick',[],'YTick',[],'ZTick',[])
  box on

hold on
%fnplt(cscvn(xyz(:,[1:end 1])),'r',2)
fnplt(cscvn(xyz(:,:)),'r',2)
hold off

Now I am trying to get all the points on this spline in arrays as I have to use them later on. How can this be done?