Transform Plugin

This plugin allows for applying a transformation function on the data values in a dataport.  All values or a subset of them can be modified.

The intent is that while developing a system, it is not uncommon to change what or how the data is stored.  A lightweight example is storing ADC counts then later deciding to store temperatures.  Often this left you with the two options of either flushing all the old data and waiting for new data to fill. Or trying to deal with the two very different data sets.