visad/visad — pull request #22 by tommyjasmin (2013-08-07 15:54:43+00:00)
Title: Allow user to label every Nth contour line [1375]

This is all documented on in McV Inquiry #1375, and on RedMine:

https://mcidasv.ssec.wisc.edu/issues/50

Enhancement relating to labeling contour lines.