Linegroup¶
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | # Plot thousands of lines with a LineGroup.
# Dummy data
xs = numpy.linspace(0, 1, 256) * Angstrom
# Create oscillating lines.
constants = numpy.arange(1024)
xs_mesh, constants_mesh = numpy.meshgrid(xs.inUnitsOf(Angstrom), constants)
ys = numpy.sin(40 * numpy.pi * numpy.cos(constants_mesh) * xs_mesh) + constants_mesh
# Create and tweak model.
model = Plot.PlotModel(x_unit=Angstrom)
model.xAxis().setLabel('Position')
model.framing().setTitle('Plot Many Lines')
model.legend().setVisible(True)
# Create line group and lines.
group = Plot.LineGroup()
model.addItem(group)
for i in range(1024):
line = Plot.Line(xs, ys[i, :])
line.setLineWidth(0.6)
line.setColor(Plot.Colors[i])
group.addItem(line)
# Autoscale.
model.setLimits('y', 0, 200)
# Show the plot for interactive editing.
Plot.show(model)
# Save the plot (can also be saved to svg, pdf, jpeg or hdf5).
Plot.save(model, 'linegroup.png')
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References: Plot.PlotModel, Plot.save, Plot-Colors_c, Plot.LineGroup, Plot.Line, Plot.show.
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