This is a plugin for pyFormex. (C) 2002 Benedict Verhegghe
See the Section2D example for an example of its use.
Classes defined in module section2d
A class describing a general 2D section.
The 2D section is the area inside a closed curve in the (x,y) plane. The curve is decribed by a finite number of points and by straight segments connecting them.
Functions defined in module section2d
Compute characteristics of plane sections.
The plane sections are described by their circumference, consisting of a sequence of straight segments. The segment end point data are gathered in a plex-2 Formex. The segments should form a closed curve. The z-value of the coordinates does not have to be specified, and will be ignored if it is. The resulting path through the points should rotate positively around the z axis to yield a positive surface.
The return value is a dict with the following characteristics:
Computes extended section characteristics for the given section.
S is a dict with section basic section characteristics as returned by sectionChar(). This function computes and returns a dict with the following:
Compute the principal values and directions of a 2D tensor.
Returns a tuple with three values: