[Insight-users] ITK Python Wrapping Examples

[Charl P. Botha]

Hua Qian wrote:
> Final Registration Parameters
> Translation X =  _90db2909_p_double
> Translation Y =  _98db2909_p_double
> 
> Is there anyway to print out the parameters in plain numbers?

This has to do with the way in which SWIG treats references, and 
GetElement() is actually returning a C++ reference to the element in 
question, which is why you see a _p_double.

For now, you can try something like:
finalParameters.get(0)
finalParameters.get(1)

or more generically for any _p_double:
DArray_getitem(finalParameters.GetElement(0), 0)
DArray_getitem(finalParameters.GetElement(1), 0)

This could perhaps be done automatically by adding a few typemaps to 
itk.swg, but then one would lose the ability to SET an element on the 
returned reference by making use of *Array_setitem().

-- 
charl p. botha http://cpbotha . net/ http://visualisation . tudelft . nl/