pycba.render#

PyCBA - Beam & loading schematic rendering.

Two backends draw the structural model (the beam, its supports and the applied loads) directly from a pycba.beam.Beam:

BeamPlotter.render_mpl() - a native matplotlib schematic drawn on labelled axes (distance along the beam), using structural symbols for the supports and arrows for the loads.
BeamPlotter.render_tikz() - a TikZ/stanli .tex document for publication-quality output, optionally compiled to PDF with pdflatex via BeamPlotter.save_tikz().

Both backends share a single inference pass (BeamPlotter) that turns the restraint vector and load matrix into backend-agnostic support and load descriptors, so the structural interpretation is written once.

The support symbols follow the usual drafting convention: the first vertical-restraining support is drawn as a pin and the remainder as rollers (PyCBA’s 2-DOF-per-node model does not distinguish them mechanically, and pycba.utils.parse_beam_string() deliberately discards the P/R distinction); a fully-restrained node is an encastre wall; a positive (spring) stiffness is a spring.

Classes

`BeamPlotter`	Render a `pycba.beam.Beam` as a structural schematic.
`DistLoad`	A (possibly trapezoidal / partial) distributed load in global coords.
`Hinge`	An internal moment release at a node, in global coordinates.
`MomentLoad`	A concentrated moment (`+` is counter-clockwise) in global coords.
`PointLoad`	A concentrated transverse load (`+` is downward) in global coords.
`Support`	A support inferred from the restraint vector, in global coordinates.