My data file is a 9800x128 matrix of floating point values, and I'm having trouble plotting a surface graph, that should look similar to MATLABs surf() plot.
Using:
splot '/directory/data.txt' every ::1:1 matrix with lines
works fine, but everything is in one color which makes it impossible to see what's going on. The color palette that I've imported is:
set palette defined (0 0 0 0.5, 1 0 0 1, 2 0 0.5 1, 3 0 1 1, 4 0.5 1 0.5, 5 1 1 0, 6 1 0.5 0, 7 1 0 0, 8 0.5 0 0)
Which is similar to the default one used in MATLAB. Drawing just a 2D contour using this palette:
plot '/directory/data.txt' matrix notitle with image
works just fine as well, it's as soon as I try to marry the color map with a surface plots, as follows:
splot '/directory/data.txt' every ::1:1 matrix with image
I get the following warning message and I'm left with an empty plot.
warning: Number of pixels cannot be factored into integers matching grid. N = 1244473 K = 762
