Alain Matthes submitted an update to the
tkz-elements
package.
Version: 4.00c 2025-05-25
License: lppl1.3
Summary description: A Lua library for drawing Euclidean geometry with TikZ or tkz-euclide
Announcement text:
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This update marks a significant evolution of the tkz-elements package,
both in its internal architecture and documentation structure.
Beyond performance improvements, many new features have been added
to expand the package's geometric capabilities and make it more
accessible and modular.
Documentation:
A major rewrite of the documentation has been undertaken to
improve clarity, consistency, and usability:
Index fully corrected and rebuilt
Macro indexing redesigned for greater coherence
Obsolete sections removed, including the former News section
New sections added: Short Contents, Getting Started, Class path,
LuaLaTeX for Beginners, Global Variables and Constants,
Various Functions, Module utils and Metapost.
Package Enhancements:
The dependency on an external "class" implementation for point
has been removed.
All classes now support the __call metamethod, enabling a Short
Syntax for object creation. This syntax is now consistent across
all classes.
New Class: path. The new path class manages sequences of points,
especially for geometric constructions like conic sections.
Automatically generated paths are now available for:
Segments, Circular arcs and Triangles.
Future versions will extend this to more shapes.
The path class also facilitates interactions with TikZ decorations
and custom drawings.
Metapost Integration: A dedicated mini-macro has been added for
exporting point coordinates to MetaPost files.
Functional Additions
Intersection now supports "known" and "near" options for more
precise control.
The get_points function is still available but replaced conceptually
by the get() method for most geometric classes.
Option values must now be passed as strings: "swap" -- instead of swap
The barycentric_coordinates function has been rewritten for better accuracy.
New: trilinear_coordinates support for triangle-based calculations.
New methods on line:
orthogonal_at(pt, k) like colinear_at(pt, k) for direction-based extensions.
Replaces old _east, _west, etc. with more geometric flexibility.
Advanced Geometry
New function: search_ellipse(p1, ..., p5) — Construct an ellipse
passing through five points.
Triangle Class Additions:
adams_points, adams_circle, lamoen_points, lamoen_circle, yiu_points,
yiu_circles,, yiu_triangle, circumcevian, reflection, excenter,
brocard_point (first and second), kimberling (e.g., Brocard midpoint)
Algebraic Capabilities
Though not yet fully documented, the following functions are
present and functional:
gauss_jordan, gauss_jordan_rect, solve_linear_system, solve(...),
solve_cubic(a, b, c, d)
Fixes and Refinements
triangle:point() method corrected for consistent output.
get_lengths now computes correct dimensions for rectangles.
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The package’s Catalogue entry can be viewed at
https://ctan.org/pkg/tkz-elementsThe package’s files themselves can be inspected at
https://mirrors.ctan.org/macros/latex/contrib/tkz/tkz-elements/------------------------------------------------------------------------
Thanks for the upload.
For the CTAN Team
Petra Rübe-Pugliese
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Please join a user group or donate to one, see
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CTAN update: tkz-elements