vtkTIFFReader: SetDataSpacing and the pointless SpacingSpecifiedFlag
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
Calling SetDataSpacing has no effect until SpacingSpecifiedFlagOn is called (although this is not documented). Why doesn't SetDataSpacing set the flag? What would happen if you set the flag and you had not set the spacing?
SpacingSpecifiedFlagOn should be deprecated, SetDataSpacing should set the flag. Other readers do not have this behaviour.