Parallel coordinates plots should support swapping axis orientations

[seifertm]

Usually, the axes in a parallel coordinates plot display the values from the minimum value (bottom) to the maximum value (top). To improve the possibilities of data exploration, there should be a way to swap the orientation of different axes.

Imported from trac ticket #106, created by mseifert on 02-09-2014 at 08:47, last modified: 02-09-2014 at 08:47