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Diffstat (limited to 'silx/gui/plot/actions/fit.py')
| -rw-r--r-- | silx/gui/plot/actions/fit.py | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/silx/gui/plot/actions/fit.py b/silx/gui/plot/actions/fit.py deleted file mode 100644 index cb70733..0000000 --- a/silx/gui/plot/actions/fit.py +++ /dev/null @@ -1,186 +0,0 @@ -# coding: utf-8 -# /*########################################################################## -# -# Copyright (c) 2004-2017 European Synchrotron Radiation Facility -# -# Permission is hereby granted, free of charge, to any person obtaining a copy -# of this software and associated documentation files (the "Software"), to deal -# in the Software without restriction, including without limitation the rights -# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -# copies of the Software, and to permit persons to whom the Software is -# furnished to do so, subject to the following conditions: -# -# The above copyright notice and this permission notice shall be included in -# all copies or substantial portions of the Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -# THE SOFTWARE. -# -# ###########################################################################*/ -""" -:mod:`silx.gui.plot.actions.fit` module provides actions relative to fit. - -The following QAction are available: - -- :class:`.FitAction` - -.. autoclass:`.FitAction` -""" - -from __future__ import division - -__authors__ = ["V.A. Sole", "T. Vincent", "P. Knobel"] -__license__ = "MIT" -__date__ = "10/10/2018" - -from .PlotToolAction import PlotToolAction -import logging -from silx.gui import qt -from silx.gui.plot.ItemsSelectionDialog import ItemsSelectionDialog -from silx.gui.plot.items import Curve, Histogram - -_logger = logging.getLogger(__name__) - - -def _getUniqueCurve(plt): - """Get a single curve from the plot. - Get the active curve if any, else if a single curve is plotted - get it, else return None. - - :param plt: :class:`.PlotWidget` instance on which to operate - - :return: return value of plt.getActiveCurve(), or plt.getAllCurves()[0], - or None - """ - curve = plt.getActiveCurve() - if curve is not None: - return curve - - curves = plt.getAllCurves() - if len(curves) == 0: - return None - - if len(curves) == 1 and len(plt._getItems(kind='histogram')) == 0: - return curves[0] - - return None - - -def _getUniqueHistogram(plt): - """Return the histogram if there is a single histogram and no curve in - the plot. In all other cases, return None. - - :param plt: :class:`.PlotWidget` instance on which to operate - :return: histogram or None - """ - histograms = plt._getItems(kind='histogram') - if len(histograms) != 1: - return None - if plt.getAllCurves(just_legend=True): - return None - return histograms[0] - - -class FitAction(PlotToolAction): - """QAction to open a :class:`FitWidget` and set its data to the - active curve if any, or to the first curve. - - :param plot: :class:`.PlotWidget` instance on which to operate - :param parent: See :class:`QAction` - """ - def __init__(self, plot, parent=None): - super(FitAction, self).__init__( - plot, icon='math-fit', text='Fit curve', - tooltip='Open a fit dialog', - parent=parent) - self.fit_widget = None - - def _createToolWindow(self): - window = qt.QMainWindow(parent=self.plot) - # import done here rather than at module level to avoid circular import - # FitWidget -> BackgroundWidget -> PlotWindow -> actions -> fit -> FitWidget - from ...fit.FitWidget import FitWidget - fit_widget = FitWidget(parent=window) - window.setCentralWidget(fit_widget) - fit_widget.guibuttons.DismissButton.clicked.connect(window.close) - fit_widget.sigFitWidgetSignal.connect(self.handle_signal) - self.fit_widget = fit_widget - return window - - def _connectPlot(self, window): - # Wait for the next iteration, else the plot is not yet initialized - # No curve available - qt.QTimer.singleShot(10, lambda: self._initFit(window)) - - def _initFit(self, window): - plot = self.plot - self.xlabel = plot.getXAxis().getLabel() - self.ylabel = plot.getYAxis().getLabel() - self.xmin, self.xmax = plot.getXAxis().getLimits() - - histo = _getUniqueHistogram(self.plot) - curve = _getUniqueCurve(self.plot) - - if histo is None and curve is None: - # ambiguous case, we need to ask which plot item to fit - isd = ItemsSelectionDialog(parent=plot, plot=self.plot) - isd.setWindowTitle("Select item to be fitted") - isd.setItemsSelectionMode(qt.QTableWidget.SingleSelection) - isd.setAvailableKinds(["curve", "histogram"]) - isd.selectAllKinds() - - result = isd.exec_() - if result and len(isd.getSelectedItems()) == 1: - item = isd.getSelectedItems()[0] - else: - return - elif histo is not None: - # presence of a unique histo and no curve - item = histo - elif curve is not None: - # presence of a unique or active curve - item = curve - - self.legend = item.getLegend() - - if isinstance(item, Histogram): - bin_edges = item.getBinEdgesData(copy=False) - # take the middle coordinate between adjacent bin edges - self.x = (bin_edges[1:] + bin_edges[:-1]) / 2 - self.y = item.getValueData(copy=False) - # else take the active curve, or else the unique curve - elif isinstance(item, Curve): - self.x = item.getXData(copy=False) - self.y = item.getYData(copy=False) - - self.fit_widget.setData(self.x, self.y, - xmin=self.xmin, xmax=self.xmax) - window.setWindowTitle( - "Fitting " + self.legend + - " on x range %f-%f" % (self.xmin, self.xmax)) - - def handle_signal(self, ddict): - x_fit = self.x[self.xmin <= self.x] - x_fit = x_fit[x_fit <= self.xmax] - fit_legend = "Fit <%s>" % self.legend - fit_curve = self.plot.getCurve(fit_legend) - - if ddict["event"] == "FitFinished": - y_fit = self.fit_widget.fitmanager.gendata() - if fit_curve is None: - self.plot.addCurve(x_fit, y_fit, - fit_legend, - xlabel=self.xlabel, ylabel=self.ylabel, - resetzoom=False) - else: - fit_curve.setData(x_fit, y_fit) - fit_curve.setVisible(True) - - if ddict["event"] in ["FitStarted", "FitFailed"]: - if fit_curve is not None: - fit_curve.setVisible(False) |