CGAL users discussion list

>It seems that you use the homogeneous kernel, and all your points have hw=1.

>The first line is the number of vertices. The next lines are each for one 
>vertices, with that format: "x y".

Hi,
yes, actualy it was spike.dat file. you and other fiends have told me about 
about hw :)

so the syntax is:

<number of verties>
<hx1/hw> <hy1/hw> or <x1> <y1>
...

Thanks,