[Gnuplot-info] heat map color palette and tic size

[janjust <tja...@un...>]

I am generating heat-maps and I'm confused as to how the color palette for
the cbrange works.

How does one set lower and upper colors including the nuances?
I know there are preset values that I can set , but can I set these myself?
If so, can I pick a color for lower-mid-upper range or a combination
thereof? 

Also, how do I manipulate the tic size? that is to say can I fill the size
of each area that a color shade occupies? the default is a skim line that
stretches depending on the size of my x-range.

My script is simple, and is as follows:

  1 set term postscript eps color font "Helvetica,8" size 7.0, 4.0
  2 set output "filterp.eps"
  3 set title "sizeof(filterp) = 4976bytes"
  4
  5 set tic scale 1
  6 set palette rgbformulae 32,3,5
  7 set palette negative
  8
  9 set grid
 10 set cbrange [0:1]
 11 set cblabel "references"
 12 #set cbtics 1
 13
 14 set xrange [-0.5:-0.5]
 15 set xtics
 16 set yrange [-0.5:1244]
 17 set ytics 1024
 18
 19 set view map
 20
 21 set xlabel "tics"
 22 set ylabel "sizeof(filterp)"
 23
 24 plot 'filterp.dat' using 1:2:3 with image
~

Any tips and tricks are much appreciated!!!




 



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