Combining Contour Plots in Gnuplot

[linford86]

I'm trying to combine several contour plots together onto the same graph in gnuplot. I know that I can just do something along the lines of

splot "file1.dat" u 1:2:3 w lines, "file2.dat" u 1:2:3 w lines
set contour base
set no surface
set view 0,0

However, when I do that, the data from file1.dat has different colored contours than the data from file2.dat. Is there any way that I can force gnuplot to output both data sets with the same color?

 

[Dr Transport]

I believe you can set the colors, try this website

http://t16web.lanl.gov/Kawano/gnuplot/index-e.html