[vtkusers] Bounds computation of vtkImageData

[Timothee Evain]

Hello everyone,

It may be more a dev issue, but I think there is a small mistake in the ComputeBounds() method of vtkImageData
When computing upper bounds, code read (line 781 of vtkImageData.cxx):

this->Bounds[1] = origin[0] + (extent[1-swapXBounds] * spacing[0]);
this->Bounds[3] = origin[1] + (extent[3-swapYBounds] * spacing[1]);
this->Bounds[5] = origin[2] + (extent[5-swapZBounds] * spacing[2]);

Since the upper extent is meant to be the index of the last inside point, this leads to upper bounds excluding the upper fringe of data in each direction.
So I guess this part should read something like:

this->Bounds[1] = origin[0] + ( (extent[1-swapXBounds] + 1) * spacing[0]);
this->Bounds[3] = origin[1] + ( (extent[3-swapYBounds] + 1) * spacing[1]);
this->Bounds[5] = origin[2] + ( (extent[5-swapZBounds] + 1) * spacing[2]);

Am I mistaken ?

Tim