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Grid containing plots with resize restrictions
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The ability of Plots to resize, when their container resizes, can be explicitly
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restricted in either direction. This can place *implicit* restrictions on
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other plots in the grid.
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In this example, the upper left plot is explicitly restricted from resizing
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horizontally. The bottom center plot is explicitly restricted from resizing
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The resulting implicit restrictions on the other 4 plots are generally
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intuitive, except that when the window gets too small to respect all of the
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restrictions, the results are OS and GUI-backend-dependent, not easily
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# Major library imports
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from numpy import linspace
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from scipy.special import jn
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from chaco.example_support import COLOR_PALETTE
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# Enthought library imports
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from enable.api import Component, ComponentEditor
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from traits.api import HasTraits, Instance
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from traitsui.api import Item, Group, View
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from chaco.api import ArrayPlotData, GridContainer, Plot, PlotLabel
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from chaco.tools.api import PanTool, ZoomTool
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#===============================================================================
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# # Create the Chaco plot.
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#===============================================================================
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def _create_plot_component():
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# Create a GridContainer to hold all of our plots: 2 rows, 3 columns:
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container = GridContainer(padding=40, fill_padding=True,
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bgcolor="lightgray", use_backbuffer=True,
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shape=(2,3), spacing=(20,20))
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# Create the initial series of data
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x = linspace(-5, 15.0, 100)
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pd = ArrayPlotData(index = x)
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# Plot some bessel functions and add the plots to our container
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pd.set_data("y" + str(i), jn(i,x))
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plot.plot(("index", "y" + str(i)),
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color=tuple(COLOR_PALETTE[i]), line_width=2.0,
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bgcolor = "white", border_visible=True)
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# Tweak some of the plot properties
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# Attach some tools to the plot
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plot.tools.append(PanTool(plot))
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zoom = ZoomTool(plot, tool_mode="box", always_on=False)
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plot.overlays.append(zoom)
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# Add to the grid container (
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# Set the upper-left plot to only be resizable vertically, and to have a
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# fixed horizontal width. This also constrains the width of the first column.
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ul_plot = container.components[0]
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ul_plot.set(resizable="v", width=200)
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ul_plot.overlays.append(PlotLabel("Not horizontally resizable",
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# Set the bottom center plot to have a fixed width and height.
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# This also constrains the height of the bottom row and the width of
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cplot = container.components[4]
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cplot.set(resizable="", bounds=[400,400])
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cplot.overlays.append(PlotLabel("Not resizable", component=cplot))
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container.padding_top = 50
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container.overlays.append(
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PlotLabel('Resize the window - some plots resize, others cannot '
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overlay_position = "top"))
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#===============================================================================
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# Attributes to use for the plot view.
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title="Resizable Grid Container"
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#===============================================================================
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# # Demo class that is used by the demo.py application.
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#===============================================================================
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class Demo(HasTraits):
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plot = Instance(Component)
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Item('plot', editor=ComponentEditor(size=size),
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orientation = "vertical"
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resizable=True, title=title )
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def _plot_default(self):
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return _create_plot_component()
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if __name__ == "__main__":
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demo.configure_traits()
added
removed
examples/demo/basic/grid_container.py
