# Source code for gemseo.post.dataset.yvsx

# -*- coding: utf-8 -*-
# Copyright 2021 IRT Saint Exupéry, https://www.irt-saintexupery.com
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
#
# This program 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 this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

# Contributors:
#    INITIAL AUTHORS - initial API and implementation and/or initial
#                           documentation
#        :author: Matthias De Lozzo
#    OTHER AUTHORS   - MACROSCOPIC CHANGES
"""Draw a variable versus another from a :class:.Dataset.

A :class:.YvsX plot represents samples of a couple :math:(x,y) as a set of points
whose values are stored in a :class:.Dataset. The user can select the style of line or
markers, as well as the color.
"""
from __future__ import division, unicode_literals

from typing import List, Mapping

import matplotlib.pyplot as plt
from matplotlib.figure import Figure

from gemseo.post.dataset.dataset_plot import DatasetPlot

[docs]class YvsX(DatasetPlot):
"""Plot curve y versus x."""

def _plot(
self,
properties,  # type: Mapping
x,  # type: str
y,  # type: str
x_comp=0,  # type: int
y_comp=0,  # type: int
):  # type: (...) -> List[Figure]
"""
Args:
x: The name of the variable on the x-axis.
y: The name of the variable on the y-axis.
x_comp: The component of x.
y_comp: The component of y.
"""
color = properties.get(self.COLOR) or "blue"
style = properties.get(self.LINESTYLE) or "o"
x_data = self.dataset[x][x][:, x_comp]
y_data = self.dataset[y][y][:, y_comp]

fig = plt.figure()