Hi everyone,
firstly, I'm quite new to GNUPlot (Just subscribed to this group :) ), so I do apologise if I might sound silly.
I need to visualise some 3D data.
I'd like to show you all a graphical example of what I have put in place, but I don't see how to do it (maybe it is not possible?).
If you'd want to, here's the SO link where I posted the same question:
https://stackoverflow.com/questions/75084396/gnuplot-generate-surf-like-plot-from-scatter-base
I try to explain (tough very hard to transmit) by words (or go to the link for a better understanding/visualisation).
I now generate a scatter-like plot, meaning I have the whole list oh (x, y, z) values for all points.
Is there a way to finally visualise data layed down like that as a surf-like plot, WITHOUT HAVING TO GENERATE A GRID-MESH ?
Thanks to everyone answering.
Michele
The script I have up to know:
```
# Main window settings
MAINFONT = ""
WINDOWTITLE = "BRM (mesher)"
WSIZEW = 3040 # base: 1980
WSIZEH = 2080 # base: 1080
set term wxt \
size WSIZEW, WSIZEH \
position 50, 50 \
font MAINFONT title WINDOWTITLE
#
# commands taken from GNU demo folder
#
# unset hidden3d
# set parametric
set view 45, 45
set border linestyle 102 linewidth 2
# draws a grid in the XY plane (at the base)
# set style line 102 lc rgb "#d6d7d9" lt 0 lw 1
set grid back ls 102
#
# setting styles
#
LINETYP = 8
LINEWDT = 2
POINTTY = 7
POINTIN = 0
POINTSZ = 1
# "#AARRGGBB"
set style line 1 linecolor rgb "#B5000000" \
linetype LINETYP linewidth LINEWDT \
pointtype POINTTY pointinterval POINTIN pointsize POINTSZ
set style line 2 linecolor rgb "#B5EEEEEE" \
linetype LINETYP linewidth LINEWDT \
pointtype POINTTY pointinterval POINTIN pointsize POINTSZ
set style data points
# #
# # LEGEND (related)
# #
# LEGENDTITLE = "brm"
# set key nobox \
# title LEGENDTITLE
#
# Annotation: title and labels
#
FIGURETITLE = "Bispectrum (MESHER)"
XLABEL = "f_1"
YLABEL = "f_2"
set title FIGURETITLE
set xlabel XLABEL
set ylabel YLABEL
# ??
set ticslevel 0.1
#
# RANGES
#
_xrange = 0
_yrange = 0
_xrangev_min = -0.58
_xrangev_max = 0.58
if (_xrange == 0) \
set autoscale x; \
else \
set xrange [_xrangev_min : _xrangev_max]
_yrangev_min = -0.58
_yrangev_max = 0.58
if (_yrange == 0) \
set autoscale y; \
else \
set yrange [_yrangev_min : _yrangev_max]
# by default, always autoscale Z axis
set autoscale z
#
# PALETTE (???)
#
set palette defined
#
# DATA file - ACTUAL PLOTTING (end of script)
#
DATAFILE = "brm_gnu.dat"
splot DATAFILE linestyle 1
set terminal png transparent \
size WSIZEW, WSIZEH \
truecolor enhanced
set out 'brm_gnu.png'
splot DATAFILE linestyle 2
```
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