[Gnuplot-info] 2d scatter plot with density

[folkert <fo...@va...>]

Hi,

I'm trying to add a density map to http://vanheusden.com/misc/sl/scatter-plot.png
I'm plotting there a few x/y dots and would like to let each dot have a
color depending on a third value in my source datafile.

I tried:
	set term png size 1200,600
	set autoscale
	set xdata time
	set timefmt "%s"
	set pm3d map
	splot '/tmp/scatter-plot.dat' using 1:2:3 with pm3d 
but this gives me this colored blob:
http://keetweej.vanheusden.com/~folkert/scatter-plot.png
not the + signs with color I hoped for.
Any suggestions? Thanks.


Folkert van Heusden

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