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Directory macros/latex/contrib/curve2e

%% This is file `README.txt',
%% generated with the docstrip utility.
%% The original source files were:
%% curve2e.dtx  (with options: `readme')
%%   Copyright (C)  2005--2020 Claudio Beccari  all rights reserved.
%%   License information appended
File README.txt for package curve2e
        [2020-01-18 v.2.2.0 Extension package for pict2e]
The package bundle curve2e is composed of the following files


curve2e.dtx is the documented TeX source file of file curve2e.sty; you
get curve2e.sty, curve2e.pdf, and curve2e-v161.sty by running pdflatex
on curve2e.dtx. The curve2e-manual files contain the user manual; in
this way the long preliminary descriptive part has been transferred to
a shorter dedicated file, and the “normal” user should have enough
information to use the package. Th curve2e.pdf file, extracted from
the .dtx one, contains the code documentation and is intended for the developers, or for the curious advanced users.

README.txt, this file, contains general information.

This bundle contains also package curve2e-v161.sty that is a previous
version of this package; see below why the older version might become
necessary to the end user.

Curve2e.sty is an extension of the package pict2e.sty which extends the
standard picture LaTeX environment according to what Leslie Lamport
specified in the second edition of his LaTeX manual (1994).

This further extension curve2e.sty allows to draw lines and vectors
with any non integer slope parameters, to draw dashed lines of any
slope, to draw arcs and curved vectors, to draw curves where just
the interpolating nodes are specified together with the slopes at
such nodes; closed paths of any shape can be filled with color; all
coordinates are treated as ordered pairs, i.e. 'complex numbers';
coordinates may be expressed also in polar form. Coordinates may be
specified with macros, so that editing any drawing is rendered much
simpler: any point specified with a macro is modified only once in
its macro definition.
Some of these features have been incorporated in the 2011 version of
pict2e; therefore this package avoids any modification to the original
pict2e commands.

Curve2e now accepts polar coordinates in addition to the usual cartesian
ones; several macros have been upgraded; a new macro for tracing cubic
Bezier splines with their control nodes specified in polar form is
available. The same applies to quadratic Bezier splines. The multiput
command has been completely modified in a backwards compatible way; the
new version allows to manipulate the increment components in a configurable
way. A new xmultiput command has been defined that is more configurable
than the original one; both \multiput and \xmultiput are backwards
compatible with the original picture environment definition.

This version solves a conflict with package eso-pic.

This version of curve2e is almost fully compatible with pict2e dated
2014/01/12 version 0.2z and later.

If you specify

\usepackage[<pict2e options>]{curve2e}

the package pict2e is automatically invoked with the specified options.

The -almost fully compatible- phrase is necessary to explain that this
version of curve2e uses some `functions' of the LaTeX3 language that were
made available to the LaTeX developers by mid October 2018. Should the user
have an older or a basic/incomplete installation of the TeX system,
such L3 functions might not be available. This is why this
package checks the presence of the developer interface; in case
such interface is not available it rolls back to the previous version
renamed curve2e-v161.sty, which is part of this bundle; this other
package name must not be modified in any way. The compatibility mentioned
above implies that the user macros remain the same, but their
implementation requires the L3 interface. Some macros and environments
rely totally on the xfp package functionalities, but legacy documents
source files should compile correctly.

The package has the LPPL status of maintained.

According to the LPPL licence, you are entitled to modify this package,
as long as you fulfil the few conditions set forth by the Licence.

Nevertheless this package is an extension to the standard LaTeX
pict2e (2014) package. Therefore any change must be controlled on the
parent package pict2e, so as to avoid redefining or interfering with
what is already contained in the official package.

If you prefer sending me your modifications, as long as I will maintain
this package, I will possibly include every (documented) suggestion or
modification into this package and, of course, I will acknowledge your

Claudio Beccari

claudio dot beccari at gmail dot com

%% Distributable under the LaTeX Project Public License,
%% version 1.3c or higher (your choice). The latest version of
%% this license is at: http://www.latex-project.org/lppl.txt
%% This work is "maintained"
%% This work consists of file curve2e.dtx, and the derived files
%% curve2e.sty and curve2e.pdf, plus the auxiliary derived files
%% README.txt and curve2e-v161.sty.
%% End of file `README.txt'.

Download the contents of this package in one zip archive (1.2M).

curve2e – Extensions for package pict2e

The package extends the drawing capacities of the pict2e that serves as a replacement for picture mode. In particular, curve2e introduces new macros for lines and vectors, new specifications for line terminations and joins, arcs with any angular aperture, arcs with arrows at one or both ends, generic curves specified with their nodes and the tangent direction at these nodes.

Version2.2.0 2020-01-18
LicensesThe Project Public License 1.3c
Copyright2005–2020 Claudio Beccari
MaintainerClaudio Beccari
Contained inTeX Live as curve2e
MiKTeX as curve2e
TopicsCurve Graphics
Graphics in
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