improve error message for cmtk.version

natverse / nat

NeuroAnatomy Toolbox: An R package for the (3D) visualisation and analysis of biological image data, especially tracings of single neurons.

https://natverse.org/nat/

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Closed dempseyg447 closed 4 years ago

dempseyg447 commented 4 years ago

Error in if (!cmtk.version(minimum = "3.2.2")) { : missing value where TRUE/FALSE needed

jefferis commented 4 years ago

This happens specifically when more than one CMTK registration is supplied to xformpoints.cmtkreg() but CMTK is not installed.