pycba.plotting#

PyCBA - optional Plotly plotting backend.

Interactive, hover-to-read versions of the result diagrams and envelopes. Hovering over a curve reads the value at that section; with the shared x-axis of the combined plots, one hover reports the bending moment, shear and deflection at the same position.

Plotly is an optional dependency - the default backend remains matplotlib. Install it with pip install pycba[plotly] (or pip install plotly).

Select the backend per call with the backend= argument on the plotting methods, or globally with set_backend():

import pycba as cba
cba.set_backend("plotly")          # all subsequent plots are interactive
beam_analysis.plot_results()       # -> a plotly Figure

The bending-moment panels keep PyCBA’s sagging-positive convention (the y-axis is reversed so sagging plots below the beam line), matching the matplotlib backend.

Functions

`diagram_figure`	Build an interactive single result diagram (bending moment, shear or deflection) from a `pycba.MemberResults`-like object.
`envelope_figure`	Build the interactive moment/shear envelope figure (two stacked panels) from a `pycba.Envelopes` object, with the max/min band shaded.
`get_backend`	Return the current default plotting backend.
`resolve_backend`	Resolve a per-call `backend` argument against the global default.
`results_figure`	Build the combined interactive bending-moment / shear / deflection figure (three stacked panels sharing the x-axis) from a member-results object.
`set_backend`	Set the default plotting backend used by the PyCBA result plots.