testfig = ContourPlot[Sin[x^2 + y^2], {x, -Pi, Pi}, {y, -Pi, Pi}, PlotLegends -> Automatic];
testfig2 = ContourPlot[Cos[x^2 + y^2], {x, -Pi, Pi}, {y, -Pi, Pi}, PlotLegends -> Automatic]
This produces two plots which have the same legend - not surprising since the plotted function is bounded between $-1$ and $1$.
How can I place the two plots into the same figure and only use one legend? It's easy enough to put them on the same plot using GraphicsGrid
, but that yields a figure with two legends.