Not getting the dimensions right...solved
- -pagesize and rectangle
I'd played around with these initially but it did not work. Because there are a few different options that affect the size and proportions of the image (rectangle, pagesize, pixsize, crop) I had not stumbled on the right set of args. Command that works is something like:
pl -prefab heatmap -png -o heatmap.png data=/tmp/2009_11_25.dat delim=comma x=1 y=2 contentfield=3 cutofflist=170000,160000,150000,140000,130000,120000,110000,100000,90000,80000,1 xcats=yes stubvert=yes "colorlist=darkblue,brightblue,blue,oceanblue,powderblue,powderblue2,skyblue,lavender,gray(0.8),gray(0.9),white" ycats=yes outline=yes "rectangle=1 .5 10 2" -pagesize 13,2.5 "legend=max+0.5 max" "title=Test"