Ternary contour plot#1413

Merged

jonmmease merged 12 commits intoplotly:masterfrom

emmanuelle:ternary_plot

Feb 1, 2019

Commits on Jan 26, 2019

poc of ternarycontour
emmanuelle
committed

Commits on Jan 27, 2019

ternary contour figure factory
emmanuelle
committed

Commits on Jan 29, 2019

Commits on Jan 31, 2019

FigureWidget -> Figure for consistency with other figure factories
jonmmease
committed

Commits on Feb 1, 2019