BathAfrica: Add rewritten practical lesson with steps, code and expected results

2026-10-29T21:01:11Z

Add rewritten practical lesson with steps, code and expected results

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__NOTOC__
{{OpenSite scope}}
{{OpenSite lesson
|id=opensite.help.publish-a-plot
|summary=Draw a small arithmetic curve and publish it to an OpenSite plot tab.
|prerequisites=Desktop GUI and Python, with Matplotlib in the matching scientific runtime. This example is not a structural-analysis result.
|steps==== Create a figure ===
Use <code>plt.subplots()</code>, then label both axes and state units. The lesson plots length squared, not a solver response.

=== Publish the selected figure ===
Call <code>opensite.plot.show(figure)</code>. Calling <code>show()</code> without an argument publishes open figures.

=== Read the plot tab ===
Plot views share the central workspace with scripts and document views. Switching workbench does not mean those tabs must close.

=== Navigate or export ===
Zoom/pan navigate the published raster. Use the viewer’s Save/Copy actions when present; do not assume zoom recalculates Matplotlib axes or underlying engineering data.

|result=Four labelled points appear, with illustrative values 1, 4, 9 and 16 m².
|limitations=The current viewer publishes Agg-rendered images. Matplotlib must be present in the matching runtime; installing it into an unrelated system Python does not update OpenSite.
}}

== Complete example ==
{{Code|lang=python|code=<nowiki>import opensite
import matplotlib.pyplot as plt

lengths = [1.0, 2.0, 3.0, 4.0]
illustrative_values = [length * length for length in lengths]
figure, axes = plt.subplots()
axes.plot(lengths, illustrative_values, marker="o")
axes.set(xlabel="Input length (m)", ylabel="Illustrative value (m²)",
title="Reading a published plot")
axes.grid(True)
opensite.plot.show(figure)
# This arithmetic demonstration is not a structural analysis result.</nowiki>}}

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BathAfrica: Add rewritten practical lesson with steps, code and expected results