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copied!<p>This is a bit late, but here's an example that creates and destroys Chaco plots. The main interface is <code>PlotSelector</code>, which defines some fake data and radio buttons to switch between two different plot styles (line and bar plots).</p> <p>This example uses a Traits event to signal when to close a plot, and then handles that signal with <code>PlotController</code>. There may be a better way to close the window, but I couldn't find one.</p> <p><strong>Edit</strong>: Updated imports for newer versions of Traits, Chaco, and Enable (ETS 4 instead of 3).</p> <pre><code>import numpy as np import traits.api as traits import traitsui.api as ui import chaco.api as chaco from enable.api import ComponentEditor class PlotController(ui.Controller): view = ui.View(ui.Item('plot', editor=ComponentEditor(), show_label=False), height=300, width=300, resizable=True) def object_close_signal_changed(self, info): info.ui.dispose() class BasicPlot(traits.HasTraits): close_signal = traits.Event() plot = traits.Instance(chaco.Plot) class LinePlot(BasicPlot): def __init__(self, plotdata): self.plot = chaco.Plot(plotdata) self.plot.plot(('x', 'y')) class BarPlot(BasicPlot): def __init__(self, plotdata): self.plot = chaco.Plot(plotdata) self.plot.candle_plot(('x', 'ymin', 'ymax')) available_plot_types = dict(line=LinePlot, bar=BarPlot) class PlotSelector(traits.HasTraits): plot_type = traits.Enum(['line', 'bar']) traits_view = ui.View('plot_type', style='custom') def __init__(self, x, y): ymin = y - 1 ymax = y + 1 self.plotdata = chaco.ArrayPlotData(x=x, y=y, ymin=ymin, ymax=ymax) self.figure = None def _plot_type_changed(self): plot_class = available_plot_types[self.plot_type] if self.figure is not None: self.figure.close_signal = True self.figure = plot_class(self.plotdata) controller = PlotController(model=self.figure) controller.edit_traits() N = 20 x = np.arange(N) y = x + np.random.normal(size=N) plot_selector = PlotSelector(x, y) plot_selector.configure_traits() </code></pre> <p>Note that the main interface (<code>PlotSelector</code>) calls <code>configure_traits</code> (starts application), while the plots are viewed with <code>edit_traits</code> (called from within application). Also, note that this example calls <code>edit_traits</code> from <code>PlotController</code> instead of calling it from the model. You could instead move the view from <code>PlotController</code> to <code>BasicPlot</code> and set the handler method of that view to <code>PlotController</code>.</p> <p>Finally, if you don't need to totally destroy the plot window, then you may want to look at the <code>Plot</code> object's <code>delplot</code> method, which destroys the *<em>sub</em>*plot (here the line plot or bar plot).</p> <p>I hope that helps.</p>

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