QCustomPlot Discussion and Comments

solution of a set as an heatmapReturn to overview

I have solved the set {x,y : f(x,y) = 0}, where the solution is complicated to get (many).

How I want to proceed :
So I have gotten an idea to make a grid : Divide the abscissa x and ordinate y.
Then for every x,y, I calculate f(x,y).
I obtain a 2 dimensions table.

What I want to plot and question :
I want to plot the solution like a heatmap : A yellow region where f(x,y)=0 and a white one where f(x,y)!=0.

Is it possible to do it with qcustomplot ?