[Gnuplot-info] Unrendered Quadrangles

[Christian S. <csc...@uo...>]

Hi,

Thanks for reading my mail.

I'm using the most recent version of Gnuplot for windows, 4.4.0 I think.

I have a 64x64 value data file which plots perfectly using:

plot "datafile.txt" matrix with image

However, when I wish to create an associated surface plot using:

splot "datafile.txt" matrix with lines ls 1

Gnuplot seems to "forget" to render certain quadrangles - roughly a dozen, maybe - near the back of my plot. The result is a surface plot with strange holes in it! 

??!!

Any ideas how I can fix this?

Previous to the splot command are the following:

set terminal postscript color rounded size 8cm,8cm enhanced eps
set output "surf.eps"
set palette maxcolors 0xFF
set nokey 
set noxtics
set noytics
set noztics
set border 0xF
set size square
set xrange [0:63] 
set yrange [0:63] 
set zrange [0:25] 
set cbrange [0:]
set xyplane 0
set style line 1 linetype 1 linecolor rgb "white" lw 0.03125
set hidden3d offset 0 front
set pm3d

Any help is appreciated. I must admit, I'm even at a loss as to what to search for in an attempt to solve this problem myself, though I've tried. Sorry if I've missed something obvious, and thanks again for your time.

Christian