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I need to produce some plots that look like these but I'm not sure what they are called in mathematica, can anyone identify them ?

picture

Update: I want to plot triples of the form (xvalue, yvalue, intensity) in a graph like that

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marked as duplicate by Jens, Simon Woods, whuber, Oleksandr R., Yves Klett Mar 27 '13 at 19:35

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
Try DensityPlot! – PlatoManiac Mar 27 '13 at 15:17
    
DensityPlot appears to be for plotting functions, I have triples that I want to plot corresponding to (xvalue, yvalue, intensity) Is there a function for doing this ? – Aaron Kalair Mar 27 '13 at 15:24
    
It's probably ArrayPlot. There's also MatrixPlot, Image, Graphics[Raster[...]], and ListDensityPlot (which can interpolate). For triples you need ListDensityPlot or see this – Szabolcs Mar 27 '13 at 15:26

It might be ListDensityPlot with an InterpolationOrder of 0 and a black/white ColorFunction

http://imgur.com/DPCa78q

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