Source code for PyMca5.PyMcaPlugins.MathPlugins

#/*##########################################################################
# Copyright (C) 2004-2015 V.A. Sole, European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
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__author__ = "V.A. Sole - ESRF Data Analysis"
__contact__ = "sole@esrf.fr"
__license__ = "MIT"
__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
import numpy
try:
    from PyMca5 import Plugin1DBase
except ImportError:
    from . import Plugin1DBase

from PyMca5.PyMcaGui import PyMca_Icons
import PyMca5.PyMcaMath.SimpleMath as SimpleMath

swapsign = PyMca_Icons.swapsign
derive = PyMca_Icons.derive

[docs]class MathPlugins(Plugin1DBase.Plugin1DBase): def __init__(self, plotWindow, **kw): Plugin1DBase.Plugin1DBase.__init__(self, plotWindow, **kw) self.methodDict = {'Invert':[self.invert, "Multiply active curve by -1", swapsign], 'Derivate':[self.derivate, "Derivate zoomed active curve", derive]} self.simpleMath = SimpleMath.SimpleMath() #Methods to be implemented by the plugin
[docs] def getMethods(self, plottype=None): """ A list with the NAMES associated to the callable methods that are applicable to the specified plot. Plot type can be "SCAN", "MCA", None, ... """ names = list(self.methodDict.keys()) names.sort() return names
[docs] def getMethodToolTip(self, name): """ Returns the help associated to the particular method name or None. """ return self.methodDict[name][1]
[docs] def getMethodPixmap(self, name): """ Returns the pixmap associated to the particular method name or None. """ return self.methodDict[name][2]
[docs] def applyMethod(self, name): """ The plugin is asked to apply the method associated to name. """ self.methodDict[name][0]() return
[docs] def invert(self): activeCurve = self.getActiveCurve() if activeCurve is None: return x, y, legend, info = activeCurve [0:4] operations = info.get("operations", []) operations.append("Invert") info['operations'] = operations legend = "-("+legend+")" self.addCurve(x, -y, legend=legend, info=info, replot=True)
[docs] def derivate(self): activeCurve = self.getActiveCurve() if activeCurve is None: return x, y, legend, info = activeCurve [0:4] xlimits=self.getGraphXLimits() x, y = self.simpleMath.derivate(x, y, xlimits=xlimits) info['ylabel'] = info['ylabel'] + "'" operations = info.get("operations", []) operations.append("derivate") info['operations'] = operations info['plot_yaxis'] = "right" legend = legend+"'" self.addCurve(x, y, legend=legend, info=info, replot=True)
MENU_TEXT = "Built-in Math"
[docs]def getPlugin1DInstance(plotWindow, **kw): ob = MathPlugins(plotWindow) return ob
if __name__ == "__main__": from PyMca5.PyMcaGraph import Plot x = numpy.arange(100.) y = x * x plot = Plot.Plot() plot.addCurve(x, y, "dummy") plot.addCurve(x+100, -x*x) plugin = getPlugin1DInstance(plot) for method in plugin.getMethods(): print(method, ":", plugin.getMethodToolTip(method)) plugin.applyMethod(plugin.getMethods()[0]) curves = plugin.getAllCurves() for curve in curves: print(curve[2]) print("LIMITS = ", plugin.getGraphYLimits())