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## Main Question or Discussion Point

I'm looking, as an observer, at imaging accretion discs and tori around Kerr black holes. The image of the disc/torus is projected onto a 2D grid (a CCD if you like) so all lensing effects etc. are implicit. Basically, I can plot the image after determining the (x,y) coordinates in the 2D grid. Plotting 2D data using ListPlot and using the Import command for my .dat files (which are a list of (x,y) points) is no problem.

My question is this: How would one plot a list of (x,y,z) data in ListPlot, where each pixel/point is plotted as (x,y) and the third coordinate z (which can represent redshift, radial coordinate etc) is used to colour each pixel, i.e. its corresponding (x,y) coordinates?

Thank you

My question is this: How would one plot a list of (x,y,z) data in ListPlot, where each pixel/point is plotted as (x,y) and the third coordinate z (which can represent redshift, radial coordinate etc) is used to colour each pixel, i.e. its corresponding (x,y) coordinates?

Thank you