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use gnuplot as lightweight plotter

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This commit is contained in:
Dominik Demuth 2023-05-19 11:33:02 +02:00
parent 233cdd9f80
commit 6e9dd4d45f
1 changed files with 25 additions and 27 deletions
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52
src/nmreval/io/fcbatchreader.py
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@ -11,6 +11,7 @@ import numpy as np
from nmreval.data.points import Points
from nmreval.io.asciireader import AsciiReader
from nmreval.io.hdfreader import HdfReader
from nmreval.lib.logger import logger
from nmreval.utils.utils import get_temperature, roundrobin
@ -56,7 +57,7 @@ class FCReader:
_temp = self._read_from_dir(filename)
else:
raise TypeError
raise TypeError(f'{filename} is of unknown type')
if not _temp:
raise OSError(-666, f'No magnetization found for {filename.name}.', filename.name)
@ -212,7 +213,7 @@ class FCReader:
except KeyError:
self.f_params[k] = [new_entry]
if True: # save_fits or save_fig:
if True: # save_fits or save_fig:
xplot = np.geomspace(v.x[0], v.x[-1], num=10*len(v.x))
yplot = FCReader.kww(xplot, *p0)
save_name = f'{filename.stem}_{k:011.2f}'.replace('.', 'p') + '.dat'
@ -224,33 +225,30 @@ class FCReader:
img_file = image_path.joinpath(save_name).with_suffix(".png")
gnuplot_args = [
'gnuplot',
'-e',
'set terminal png',
f'set output "{img_file}"',
f'set title "f = {k:.4g} Hz\n{p0[2]:.4g}(+/-{perr[2]:.4g}) beta: {p0[3]:.4g}(+/-{perr[3]:.4g})"',
'set xlabel "t / s"',
'set logscale x',
'set format x "10^{{%L}}"',
'set ylabel "M"',
'set key off',
f'plot "{data_path.joinpath(save_name)}" with points pointtype 5, "{fit_path.joinpath(save_name)}" with lines',
'set terminal png;',
f'set output "{img_file}";',
f'set title "f = {k:.4g} Hz\\n{p0[2]:.4g}(+/-{perr[2]:.4g}) beta: {p0[3]:.4g}(+/-{perr[3]:.4g})";',
'set xlabel "t / s";',
'set logscale x;',
'set format x "10^{{%L}}";',
'set ylabel "M";',
'set key off;',
f'plot "{data_path.joinpath(save_name)}" with points pointtype 5, "{fit_path.joinpath(save_name)}" with lines;',
]
print(gnuplot_args)
subprocess.Popen(gnuplot_args)
# if save_fig:
# fig, ax = plt.subplots()
# ax.set_xlabel('t / s')
# ax.set_ylabel('M')
# axheader = f'T1: {p0[2]:.4g}(+/-{perr[2]:.4g}) beta: {p0[3]:.4g}(+/-{perr[3]:.4g})'
# ax.set_title(f'f = {k:.4g} Hz\n{axheader}')
# ax.semilogx(v.x, v.y, 'o')
# ax.semilogx(xplot, yplot, '-')
# fig.savefig(image_path.joinpath(save_name).with_suffix('.png'))
# plt.close(fig)
try:
proc = subprocess.Popen(
['gnuplot', '-p'],
shell=True,
stdin=subprocess.PIPE,
encoding='utf8',
)
for args in gnuplot_args:
proc.stdin.write(args)
proc.stdin.write('quit\n')
proc.stdin.flush()
except Exception as e:
logger.error(f'saving image {save_name} failed', e)
freqs = np.asanyarray(freqs)
params = np.asanyarray(params)