[Insight-developers] add template parameters to optimizer base class

[Luis Ibanez]

Hi Brian,

We should check with Gaetan on the implications
that this new template parameter may have in the Wrapping...


       Luis


----------------------------------------------------------------------------------------
On Tue, Mar 29, 2011 at 5:19 PM, brian avants <stnava at gmail.com> wrote:
> hi everyone
>
> itkCostFunction defines the following:
>
> class ITK_EXPORT CostFunction:public Object
> {
> public:
>
> < snip >
>
>  /**  ParametersType typedef.
>   *  It defines a position in the optimization search space. */
>  typedef double                       ParametersValueType;
>  typedef Array< ParametersValueType > ParametersType;
>
> ....
>
> what we'd like to do is define ParametersValueType via a template parameter
> such that we can use float type.
>
> the motivation is to allow us to have Derivatives/Parameters that are
> float deformation fields or float BSpline parameter images that are
> then memory mapped to Parameter/DerivativeType arrays.
>
> does anyone have any objection?   we'd have to make changes to all the
> derived classes but these changes should be backward compatible
> because the default template parameter for ParametersValueType would
> be double ( as it currently is ).
>
> brian
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