[Insight-developers] itkMacros for ConstPointers

[Luis Ibanez]

"Miller, James V (CRD)" wrote:
> While a filter does not modify is input bulk data, a filter does cause the input to be modified (in
> terms of requested regions, etc.).  If the inputs to a filter are made to be const pointers, then
> we'll need to make some of these control structures mutable.
> 

Agree,

Declaring the three types of regions as mutable 
seems to be reasonable. Anyway, if an image is 
used as input for three different filters, each 
filter can independently change the 'requested' 
region for the image, and that should not trigger
an update in the other two filters. That means
also that changes in regions should not require
to call Modified().

Can this changes in the code be done without
breaking the pipeline mechanisms ?

I would find interesting to modify itkProcessObject
itself to make m_Inputs a list of ConstPointers to 
ObjectData.




Luis