I would like to plot a heatmap on top of a 2d map. Something like:
plot(geometry) heatmap!(x, y, values)
The heatmap is consisting of a lot of zeros and I would like to be able to have all those zeros mapping to a transparent value (so they do not hide the map details).
Is there a colorscheme that can do that?
I already tried the opposite (first heatmap and then plot!) and setting the color (and background) of the map to transparent), which is relatively nice but the places where there is a large density of lines in the map hides completely the heatmap…
Thank you in advance for your help.