https://svn.code.sf.net/p/autoplot/code/autoplot/trunk/15379
https://saturn.physics.uiowa.edu/svn/das2/dasCore/community/autoplot2011/trunk/dasCore/8067
https://saturn.physics.uiowa.edu/svn/das2/dasCore/community/autoplot2011/trunk/dasCoreDatum/8050
https://saturn.physics.uiowa.edu/svn/das2/dasCore/community/autoplot2011/trunk/dasCoreUtil/8047