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# * Copyright (c) 2012 Jan Rheinländer <jrheinlaender@users.sourceforge.net> *
# * *
# * This file is part of the FreeCAD CAx development system. *
# * *
# * This library is free software; you can redistribute it and/or *
# * modify it under the terms of the GNU Library General Public *
# * License as published by the Free Software Foundation; either *
# * version 2 of the License, or (at your option) any later version. *
# * *
# * This library 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 Library General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with this library; see the file COPYING.LIB. If not, *
# * write to the Free Software Foundation, Inc., 59 Temple Place, *
# * Suite 330, Boston, MA 02111-1307, USA *
# * *
# ******************************************************************************/
from PySide import QtCore, QtGui
import FreeCAD, FreeCADGui
class Diagram:
def create(
self, title, function, xlength, xname, xunit, xscale, yname, yunit, yscale, numxpoints
):
# Initialize
from FreeCAD.Plot import Plot
self.title = title
self.function = function # This is assumed to be always a SegmentFunction
self.xlength = xlength
self.xname = xname
self.xunit = xunit
self.xscale = xscale
self.yname = yname
self.yunit = yunit
self.yscale = yscale
self.numxpoints = numxpoints
# Create a plot window
self.win = Plot.figure(title)
# Get the plot object from the window
self.thePlot = Plot.getPlot()
# Format the plot object
Plot.xlabel("$%s$ [%s]" % (xname, xunit))
Plot.ylabel("$%s$ [%s]" % (yname, yunit))
Plot.grid(True)
# Calculate points
(self.xpoints, self.ypoints) = self.function.evaluate(self.xlength, self.numxpoints)
# Create plot
self.plot()
def update(self, function=None, xlength=None):
if function is not None:
self.function = function
if xlength is not None:
self.xlength = xlength
# Calculate points
(self.xpoints, self.ypoints) = self.function.evaluate(self.xlength, self.numxpoints)
# Create plot
self.plot()
def plot(self):
plots = self.thePlot.series
if plots:
# Remove line from plot
axes = plots[0].axes
axes.lines.pop(plots[0].lid)
# Remove serie from list
del self.thePlot.series[0]
self.thePlot.update()
self.xpoints = [p * self.xscale for p in self.xpoints]
self.ypoints = [p * self.yscale for p in self.ypoints]
self.thePlot.plot(self.xpoints, self.ypoints)
plots = self.thePlot.series
axes = plots[0].axes
axes.set_xlim(right=max(self.xpoints) * 1.05)
axes.set_ylim(min(self.ypoints) * 1.05, max(self.ypoints) * 1.05)
self.thePlot.update()
def close(self):
# Close the associated mdiSubWindow
self.win.parent().close()
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