I'm trying to make a
ContourPlot of a set of data of the kind: $(x,y,f(x,y))$
What I'd like to do is to remove the majority of the iso-line and just leave two of them, but keeping the changing of the color.
In other words I'd like to obtain something like a
ListDensityPlot of my data set, but with two iso-curves marking the points $(x,y)$ having either value $0$ or $-0.0005$.
Any idea on how to do this? like for example overlapping two different graphs on each other or extracting the iso-curve interpolant from the contour plot and plug it into the density plot? these are just some ideas...