[Insight-users] DigitallyReconstructedRadiograph1

[Alexis Kotte]

  Hi all,

in the "Examples/Filtering" directory there is a file called
"DigitallyReconstructedRadiograph1.cxx" which can be compiled into a
program DRR. However, this program does not behave as I would expect.
When you do not supply it with an input file, it can construct a
volume containing a number of boxes. Using this volume a DRR is
generated. Running the program with the option "-v" result in a list
of parameters with which the RayCastInterpolateImageFunction and the
CenteredEuler3DTransform are run. The list of parameters (focal point
location and output image location for instance) are alright, BUT the
resulting picture is not! Only a small fraction of the "expected DRR"
is visible. This can be altered using the translation option, but I do
not understand why the calculated parameters are not in correspondence
with the resulting picture.
Can anybody enlighten me?

Cheers,

Alexis Kotte