Package: wnpp
Severity: wishlist
[ Note: I am crossposting this message, originally intented to the Debian
Bug Tracking System, to the help-octave and octave-dev mailing list. I am
to busy/lazy to do several announcements. ]
I am in the process of packaging Alan Murta's General Polygon Clipper
Library. Its web site is the following:
http://www.cs.man.ac.uk/~amurta/software/index.html#gpc
Unfortunately, the licence terms (non-commercial distribution only) will
prevent the packages from going into main. It will land on non-free.
I added autoconf/automake/libtool support to the upstream sources, but I am
considering this modification as a Debian specific one (hence the
modifications will appear only in the diff.gz file).
I also generated Octave bindings for the library, allowing easy access to
the polygon clipping routines, as well as plotting, from Octave programs,
like this:
s = gpc_read ("subj1.gpf");
c = gpc_read ("clip1.gpf");
r = gpc_clip (s,c);
gpc_plot (s, "r");
gpc_plot (c, "g");
gpc_plot (r, "b");
I am planning to contribute the Octave bindings to octave.sf.net.
Here are the descriptions of the Debian packages:
Package: libgpcl0
Version: 2.31-1
Section: non-free/math
Priority: optional
Architecture: i386
Depends: libc6 (>= 2.2.3-1)
Installed-Size: 88
Maintainer: Rafael Laboissiere <[EMAIL PROTECTED]>
Source: gpcl
Description: A general polygon clipper library
A flexible and highly robust polygon set operations library for use with C
applications, as referenced in the comp.graphics.algorithms FAQ and the
UIUC Computational Geometry Pages.
.
Features:
* Difference, intersection, exclusive-or and union clip operations are
supported.
* Polygons may be comprised of multiple disjoint contours.
* Contour vertices may be given in any order - clockwise or
anticlockwise.
* Contours may be convex, concave or self-intersecting.
* Contours may be nested (i.e. polygons may have holes).
* Output may take the form of either polygon contours or tristrips.
* Hole and external contours are differentiated in the result.
* Coincident edges and degenerate regions are handled correctly.
.
For more information see:
http://www.cs.man.ac.uk/~amurta/software/index.html#gpc
Package: libgpcl-dev
Version: 2.31-1
Section: non-free/math
Priority: optional
Architecture: i386
Depends: libgpcl0 (= 2.31-1), libc6-dev
Installed-Size: 220
Maintainer: Rafael Laboissiere <[EMAIL PROTECTED]>
Source: gpcl
Description: A general polygon clipper library -- development package
A flexible and highly robust polygon set operations library for use with C
applications, as referenced in the comp.graphics.algorithms FAQ and the
UIUC Computational Geometry Pages.
.
This package contains the include files and static library for the GPC
library. Also included some example polygons and HTML documentation.
.
For more information see :
http://www.cs.man.ac.uk/~amurta/software/index.html#gpc
Package: octave-gpc
Version: 0.1-1
Section: contrib/math
Priority: optional
Architecture: i386
Depends: octave2.1, libc6 (>= 2.2.3-1), libgpcl0, libstdc++2.10-glibc2.2
Installed-Size: 188
Maintainer: Rafael Laboissiere <[EMAIL PROTECTED]>
Description: Octave bindings for the General Polygon Clipper Library
GPC is a flexible and highly robust polygon set operations
library for use with C applications. This package contains bindings for
use of the library functions with Octave.
--
Rafael Laboissiere <[EMAIL PROTECTED]>
