diff options
Diffstat (limited to 'src/python/gudhi/persistence_graphical_tools.py')
| -rw-r--r-- | src/python/gudhi/persistence_graphical_tools.py | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/src/python/gudhi/persistence_graphical_tools.py b/src/python/gudhi/persistence_graphical_tools.py index 6a74a6ca..c6766c70 100644 --- a/src/python/gudhi/persistence_graphical_tools.py +++ b/src/python/gudhi/persistence_graphical_tools.py @@ -11,6 +11,7 @@ from os import path from math import isfinite import numpy as np +from functools import lru_cache from gudhi.reader_utils import read_persistence_intervals_in_dimension from gudhi.reader_utils import read_persistence_intervals_grouped_by_dimension @@ -56,6 +57,17 @@ def _array_handler(a): else: return a +@lru_cache(maxsize=1) +def _matplotlib_can_use_tex(): + """This function returns True if matplotlib can deal with LaTeX, False otherwise. + The returned value is cached. + """ + try: + from matplotlib import checkdep_usetex + return checkdep_usetex(True) + except ImportError: + print("This function is not available, you may be missing matplotlib.") + def plot_persistence_barcode( persistence=[], @@ -105,9 +117,10 @@ def plot_persistence_barcode( try: import matplotlib.pyplot as plt import matplotlib.patches as mpatches - from matplotlib import rc - plt.rc('text', usetex=True) - plt.rc('font', family='serif') + if _matplotlib_can_use_tex(): + from matplotlib import rc + plt.rc('text', usetex=True) + plt.rc('font', family='serif') if persistence_file != "": if path.isfile(persistence_file): @@ -250,9 +263,10 @@ def plot_persistence_diagram( try: import matplotlib.pyplot as plt import matplotlib.patches as mpatches - from matplotlib import rc - plt.rc('text', usetex=True) - plt.rc('font', family='serif') + if _matplotlib_can_use_tex(): + from matplotlib import rc + plt.rc('text', usetex=True) + plt.rc('font', family='serif') if persistence_file != "": if path.isfile(persistence_file): @@ -422,9 +436,10 @@ def plot_persistence_density( import matplotlib.pyplot as plt import matplotlib.patches as mpatches from scipy.stats import kde - from matplotlib import rc - plt.rc('text', usetex=True) - plt.rc('font', family='serif') + if _matplotlib_can_use_tex(): + from matplotlib import rc + plt.rc('text', usetex=True) + plt.rc('font', family='serif') if persistence_file != "": if dimension is None: |