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File glito.spec of Package glito

Name:      glito
Summary:   FLTK-based explorer for two-dimensional IFS
Version:   1.1
Release:   2
License:   GPL
Group:     Amusements/Graphics
Source0:   http://emmanuel.debanne.free.fr/glito/%{name}-%{version}.tar.gz
Source1:   %{name}.desktop
Source2:   %{name}.png
URL:       http://emmanuel.debanne.free.fr/glito/#english
BuildRequires: fltk-devel
BuildRequires: libpng12-devel

%description
Glito is free software. It is an explorer of IFS (Iterated Function Systems) in 2D.
IFS are a type of fractals. They are built by calculating the iterated images of a
point by contractive affine mappings. An IFS is a set of n (n ≥ 2) functions. A
function is chosen randomly to give a new image of a point.

Glito deals with linear functions:

Xn+1 = x1 Xn + x2 Yn + xc
Yn+1 = y1 Xn + y2 Yn + yc

and sinusoidal functions:

Xn+1 = x1 cos(Xn) + x2 sin(Yn) + xc
Yn+1 = y1 sin(Xn) + y2 cos(Yn) + yc

Glito can be used to draw Julia sets as well. Theorically we just need to draw the
points defined by:

Zn+1 = √( Zn - c )

where c is the parameter of the Julia. In Glito the equation is modified to make the
manipulation easier and to benefite from the linear mappings. We define, with
Zn = Xn + i Yn and c = xc + i yc:

Zn+1 = √( x1 Xn + x2 Yn + i (y1 Xn + y2 Yn) + c² )

Glito represents a function by a parallelogram. The center of the parallelogram has
for coordinates (xc, yc) and two contiguous edges correspond to the vectors (x1, y1)
and (x2, y2).

Glito's features:

* modification by translation, rotation, dilation... of the IFS functions
      thanks to mouse

* real-time visualization of the modifications

* animations (transition between 2 IFS, rotation, zoom)

* IFS can be saved under an XML format or under the Fractint format

* images and animations can be saved in gray level, transparent or not.
      File formats: PNG, PGM, BMP and MNG for the animations

%build
./configure --prefix=%{_prefix} --disable-debug --disable-static --enable-optimize --enable-shared --build=x86_64
make

%install
make prefix=%{buildroot}%{_prefix} install
mkdir -p %{buildroot}%{_datadir}/pixmaps
mkdir -p %{buildroot}%{_datadir}/applications
cp %{SOURCE1} %{buildroot}%{_datadir}/applications
cp %{SOURCE2} %{buildroot}%{_datadir}/pixmaps

%clean
rm -rf $RPM_BUILD_ROOT

%files
%doc COPYING NEWS README TODO
%{_bindir}/glito
%{_datadir}/doc/glito/COPYING
%{_datadir}/doc/glito/manual_en.html
%{_datadir}/doc/glito/manual_eo.html
%{_datadir}/doc/glito/manual_fr.html
%{_datadir}/locale/eo/LC_MESSAGES/glito.mo
%{_datadir}/locale/fr/LC_MESSAGES/glito.mo
%{_datadir}/applications/%{name}.desktop
%{_datadir}/pixmaps/%{name}.png

%changelog
* Wed Mar 05 2015 Huaren Zhong <huaren.zhong@gmail.com> 1.1
- Rebuild for Fedora
* Mon Sep 05 2005 Mirco Mueller <macslow at bangang dot de> 1.1-2
- fixed a ugly mishap in the .spec-file
* Mon Mar 07 2005 Mirco Mueller <macslow at bangang dot de> 1.1-1
- initial .spec file written for glito-1.1.tar.gz
- added an icon
- also added a .desktop file

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File glito.spec of Package glito

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