Re: [Help-gsl] Step-size in gsl_siman_solve

[Brian Gough]

At Mon, 23 Apr 2007 16:48:43 +1000,
John Pye wrote:
> I have a problem involving placement of 2-D shapes into as tight a
> packing as possible. As the temperature drops in the siman solver, the
> only steps that are likely to be of any use are smaller steps (large
> steps will cause my shapes to collide). Is there any way I can use the
> GSL siman routine to take_steps but with a reducing step size, or with a
> step size that is a function of temperature? Or will this require a
> modification to the gsl_siman_solve implementation?

There is no way to change the step size within gsl_siman_solve but you
could perform the cooling in stages, reducing the step size and
temperature subsequently on each call to gsl_siman_solve.

-- 
Brian Gough

Network Theory Ltd,
Publishing Free Software Manuals --- http://www.network-theory.co.uk/