[Insight-developers] RE: Metrics: Removing some template parameters

[Luis Ibanez]

That's right !

Transforms are now templated over:

1- TScalarType (that now will be only the "representation" type)
2- int Dimension of the InputSpace
3- int Dimension of the OutputSpace
4- TParameters
5- TJacobian


(1) As we decided on the meeting the internal computation type
will be "double" and the "TScalarType" will be used for
representation ... like :    itk::Point<TScalarType,dim>

(2) and (3) seems to be neecesary because input and output
itk::Point<>    are templated over dimension.

(4) and (5) could be removed is we agree to pack them in
std::vector<double>....  (or something equivalent).

That will reduce the itk::Transform<>  to be templated over:

1) Representation type (double/float)
2) Dimension of input space
3) Dimension of output space


Is that reasonable ?


  Luis


-------------------------------------------

Lydia Ng wrote:

>>With this changes, Metrics will be templated only over the
>>Moving/Fixed Image types and will plug in Interpolators and
>>Transforms at runtime.
>>
>
>De-templating the Transform classes needs to occur at the same
>time to make things work.
>Might it be easier to start with Transform classes first?
>
>-Lydia
>