Documentation

The xsection package comprises the following core geometry classes:

PolygonSection(exterior[, interior, ...])	A homogeneous polygon section.
CompositeSection(patches[, materials, ...])	A non-homogeneous cross-section composed from multiple sections.

The xsection.library submodule exposes the following convenience classes which inherit from the core geometry classes:

from_aisc(identifier[, units, fillet])	Create a homogeneous cross-section from an AISC identifier.
Circle(radius[, centroid, mesh_scale, divisions])	A discrete circle section with exact area.
Rectangle(b, d[, mesh_scale, centroid])	A rectanglular section.
HollowRectangle(b, d[, t, mesh_scale, centroid])	A hollow rectanglular section.
WideFlange(d[, bf, tw, tf, t, b, k, k1, ...])	A wide flange (I) section.
HalfFlange(d[, bf, tw, tf, t, b, k, ...])	A half wide flange (T) section.
Channel(d, b[, tf, tw, k, ho, sf, centroid, ...])	A channel (C) section.
Angle(b, d, t[, k, centroid, mesh_scale])	An angle (L) section.
SingleCellGirder(d, br6, br4, br3, br1, tr5, ...)	Single-cell box girder
aisc_data(identifier[, props, units])	Return a dictionary of cross section properties from the AISC database.

The central abstraction in the xsection package is the Section interface, which is defined by the following attributes:

Section.elastic	An object holding the elastic properties of a section.
Section.linspace(start, stop, num[, radius])	Create num copies of this section with centroids linearly aranged from start to stop.
Section.translate(location)	Translate the section to a new location.