Superimposing lines/circles/boxes on PlotIntensity

[DAronstein]

Suppose I am using PlotIntensity to plot a 2D function (like a Gaussian), and I'd like to draw on top of it some other information (like contour lines for the 1/e and 1/e^2 curves).  

Perhaps importantly, the PlotIntensity data may be coarsely sampled (say a 64 x 64 grid) but I'd like the superimposed curves to have a narrow/thin line thickness.

Is there any way to accomplish this?

[Dafrizzy · Accepted solution]

I've never tried it but you may be able to set multiple PlotAttributes. Have you tried seeing what happens if you just tried to use PlotIntensity then, for example, PlotPolygon?

"SetPlotAttribute": http://zone.ni.com/reference/en-XX/help/370051V-01/cvi/uiref/cvisetplotattribute/

[DAronstein]

Thank you, Daniel!  Worked like a charm!