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numpy_engine_base.py
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Mon, May 6, 10:14

numpy_engine_base.py
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# Copyright (C) 2018 by the RROMPy authors
#
# This file is part of RROMPy.
#
# RROMPy is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# RROMPy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with RROMPy. If not, see <http://www.gnu.org/licenses/>.
#
import numpy as np
from matplotlib import pyplot as plt
from .hfengine_base import HFEngineBase
from rrompy.utilities.base.types import Np1D, strLst, List
from rrompy.utilities.base import purgeList, getNewFilename
__all__ = ['NumpyEngineBase']
class NumpyEngineBase(HFEngineBase):
"""Generic solver for parametric matricial problems."""
def plot(self, u:Np1D, warping : List[callable] = None, name : str = "u",
save : str = None, what : strLst = 'all',
saveFormat : str = "eps", saveDPI : int = 100, show : bool = True,
pyplotArgs : dict = {}, **figspecs) -> str:
"""
Do some nice plots of the complex-valued function with given dofs.
Args:
u: numpy complex array with function dofs.
name(optional): Name to be shown as title of the plots. Defaults to
'u'.
save(optional): Where to save plot(s). Defaults to None, i.e. no
saving.
what(optional): Which plots to do. If list, can contain 'ABS',
'PHASE', 'REAL', 'IMAG'. If str, same plus wildcard 'ALL'.
Defaults to 'ALL'.
saveFormat(optional): Format for saved plot(s). Defaults to "eps".
saveDPI(optional): DPI for saved plot(s). Defaults to 100.
show(optional): Whether to show figure. Defaults to True.
pyplotArgs(optional): Optional arguments for pyplot.
figspecs(optional key args): Optional arguments for matplotlib
figure creation.
Returns:
Output filename.
"""
if isinstance(what, (str,)):
if what.upper() == 'ALL':
what = ['ABS', 'PHASE', 'REAL', 'IMAG']
else:
what = [what]
what = purgeList(what, ['ABS', 'PHASE', 'REAL', 'IMAG'],
listname = self.name() + ".what", baselevel = 1)
if len(what) == 0: return
if 'figsize' not in figspecs.keys():
figspecs['figsize'] = (13. * len(what) / 4, 3)
subplotcode = 100 + len(what) * 10
idxs = np.arange(self.spacedim)
if warping is not None:
idxs = warping[0](np.arange(self.spacedim))
plt.figure(**figspecs)
plt.jet()
if 'ABS' in what:
subplotcode = subplotcode + 1
plt.subplot(subplotcode)
plt.plot(idxs, np.abs(u).flatten(), **pyplotArgs)
plt.title("|{0}|".format(name))
if 'PHASE' in what:
subplotcode = subplotcode + 1
plt.subplot(subplotcode)
plt.plot(idxs, np.angle(u).flatten(), **pyplotArgs)
plt.title("phase({0})".format(name))
if 'REAL' in what:
subplotcode = subplotcode + 1
plt.subplot(subplotcode)
plt.plot(idxs, np.real(u).flatten(), **pyplotArgs)
plt.title("Re({0})".format(name))
if 'IMAG' in what:
subplotcode = subplotcode + 1
plt.subplot(subplotcode)
plt.plot(idxs, np.imag(u).flatten(), **pyplotArgs)
plt.title("Im({0})".format(name))
if save is not None:
save = save.strip()
fileOut = getNewFilename("{}_fig_".format(save), saveFormat)
plt.savefig(fileOut, format = saveFormat, dpi = saveDPI)
else: fileOut = None
if show:
plt.show()
plt.close()
return fileOut

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