Documentation

The xsection package comprises the following core geometry classes:

PolygonSection(exterior[, interior, ...])	A homogeneous polygon section.
CompositeSection(patches, **kwds)	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 polygon representation of a circle section.
Rectangle(b, d[, centroid, mesh_scale])	A polygon representation of a rectangle section.
WideFlange(d[, bf, tw, tf, t, b, k, k1, ...])	A polygon representation of a wide flange (I) section.
HalfFlange(d[, bf, tw, tf, t, b, k, ...])	A polygon representation of a half wide flange (T) section.
Channel(d, b, tf[, tw, sf, mesh_scale])	A polygon representation of a channel (C) section.
Angle(b, d, t[, k, centroid, mesh_scale])	A polygon representation of an angle (L) section.
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.