From 6e9dd4d45f8055dc9b55898e425ba375089d33b6 Mon Sep 17 00:00:00 2001 From: Dominik Demuth Date: Fri, 19 May 2023 11:33:02 +0200 Subject: [PATCH] use gnuplot as lightweight plotter --- src/nmreval/io/fcbatchreader.py | 52 ++++++++++++++++----------------- 1 file changed, 25 insertions(+), 27 deletions(-) diff --git a/src/nmreval/io/fcbatchreader.py b/src/nmreval/io/fcbatchreader.py index f221bfe..9bb09fb 100644 --- a/src/nmreval/io/fcbatchreader.py +++ b/src/nmreval/io/fcbatchreader.py @@ -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)