Free graphic tools software for linux

g3d Graphic Tools project consists of a XML file format and generic development tools for games.
The problem is that often as a games developer you need to work with many 3d editing tools and rendering engines, and there should be an easy and portable way to move objects, levels, etc. around.
By having a common intermediate file format, you only need to write one exporter per tool and one importer per graphics engine. Also, you can develop generic tools which are not tied to any particular engine.
Enhancements:
- Added the skeleton object (beginnings of animation ;)
- Added asset management info in the file header (ie date, time, author, source, description)
- Fixed exporter bugs (3dsmax) relating to heiarchy stuff

Radar Tools in short RAT is a small collection of tools for processing SAR (synthetic aperture radar) remote sensing data, packed together in a nice graphical user interface.
Our motivation to start the development of RAT is that modern remote sensing software like Erdas Image or ENVI include only some basic SAR functionality. Advanced algorithms have to be implemented by oneself.
So we descided to start the development of RAT. RAT should bring modern SAR algorithms to a wider user-base by simplifying in particular the data handling and processing of complex SAR data.
RAT is planned as an ongoing community effort, i.e. there will be no final version with a certain functionality. It is our idea to include more and more SAR tools in future and to make them freely available to the scientific community.
We of course also hope for external contributions. Because of this, the programming interface of RAT is kept quite simple and adding own functions is quite easy. Function templates are included in the distribution and a step-by-step description of how to program a RAT module will appear soon in the documentation.
Main features:
General features
- Cross-platform (Unix, Windows, Linux & Mac OSX)
- Free software, no commercial software license needed (when using the IDL-VM version)
- Availability of the complete source code
- Modular design, easy to extend by own functions
- Small memory footprint even when processing large images (vertical tiling)
- No limitation on the image size
- Keep track of data representation changes during image processing
- Optimised preview on screen while calculations are done in full resolution
- Native import routines for E-SAR (DLR) and ENVISAT-IMS (ESA) data
- Export possibility to generic graphic formats (png, jpg & tiff)
- Undo function for the last processing step
Generic image manipulation
- Resize, presumming & cut region
- Zooming of an area of interest
- Mirror vertical and horizontal
- Binary transforms
Single channel SAR
- SAR speckle filtering (Boxcar, Median, Gauss, Kuan, Frost, MAP Lee, refined Lee, Lee-Sigma)
- Edge detection (RoA, MSP-RoA, Sobel, Roberts)
- Co-occurance texture features, variation coefficient
- Point and distributed target analysis
- Generic slant-to-ground range projection
SAR polarimetry
- Polarimetric point target analysis
- Polarimetric speckle filtering (Boxcar, Lee, refined Lee)
- Polarimetric CFSAR edge detection
- Calculation of interchannel ratios, correlation & phase differences
- Formation of covariance and coherency matrix, span calculation
- Polarimetric basis transforms (linear -> circular ....)
- Decompositions (Pauli, Freman-Durdan, Moriyama, Entropy/Alpha, Eigenvalue, Sphere-Diplane-Helix....)
- Polarimetric classification (Entropy/Alpha/Anisotropy, Wishart, No. of scatterers, physical, Lee category preserving...)
- Polarimetric calibration: imbalance, symmetrisation & crosstalk (Quegan method)
SAR interferometry
- Image pair coregistration (coarse, subpixel & spatially varying)
- Interferogram formation
- Flat-earth removal
- Phase-unwrapping (least-squares only)
- Phase noise filter (Boxcar, Goldstein & GLSME)
- Coherence estimation (Boxcar, Gauss, Region Growing)
- Shaded relief calculation
Polarimetric SAR interferometry
- Formation of POLINSAR covariance and coherency matrices
- Coherence estimation & optimisation
- Extraction of optimised ESPRIT phases
- POLINSAR speckle filtering (Boxcar, Gauss & Lee)
- Coherence analysis in the complex unitary plane

Graphics::ColorUtils Perl module is an easy-to-use color space conversions and more.

SYNOPSIS

use Graphics::ColorUtils;

( $y, $i, $q ) = rgb2yiq( $r, $g, $b );
( $r, $g, $b ) = yiq2rgb( $y, $i, $q );
$hex_string = yiq2rgb( $y, $i, $q );

( $c, $m, $y ) = rgb2cmy( $r, $g, $b );
( $r, $g, $b ) = cmy2rgb( $c, $m, $y );
$hex_string = cmy2rgb( $c, $m, $y );

( $h, $l, $s ) = rgb2hls( $r, $g, $b );
( $r, $g, $b ) = hls2rgb( $h, $l, $s );
$hex_string = hls2rgb( $h, $l, $s );

( $h, $s, $v ) = rgb2hsv( $r, $g, $b );
( $r, $g, $b ) = hsv2rgb( $h, $s, $v );
$hex_string = hsv2rgb( $h, $s, $v );

# -----

use Graphics::ColorUtils qw( :gradients );

( $r, $g, $b ) = grad2rgb( $name, $f ); # where 0.0 colorAllocate( hsv2rgb( 270, 0.5, 0.3 ) );.)

Features:

Color Space Conversions
Color space conversions, in particular between the "intuitive" color spaces HSV (Hue/Saturation/Value) and HLS (Hue/Lightness/Saturation) to and from RGB (Red/Green/Blue).
Color Lookup
Color lookup by name for three standard sets of colors: WWW/CSS, SVG, and X11.
Color Gradients
Management of color gradients, which can be indexed by a floating point number in the range 0..1. (Mostly intended for false-color data visualization.)

Text::Graphics is a text graphics rendering toolkit.

This is a toolkit for rendering plain text via an API like that used for graphics rendering in GUI toolkits. This package might be used when you want to do sophisticated rendering of plain text, e.g., for graphing, creating of complex forms for email and fax, and so on.

SYNOPSIS

use Text::Graphics;
my $text = "A text graphics rendering toolkit.n";
my $page = Text::Graphics::Page->new( 20, 10);
my $panel0 = Text::Graphics::BorderedPanel->new( 20, 10);
my $panel1 =
Text::Graphics::FilledBorderedTextPanel->new($text x 3, 25, 12);
$panel0->setBackground("#");
$panel1->setBackground(" ");
$page->add($panel0);
$page->add($panel1, 5, 2);
$page->render();

+-------------------+
|###################|
|####+--------------+
|####|A text graphic|
|####|rendering tool|
|####|text graphics |
|####|toolkit. A tex|
|####|graphics rende|
|####|toolkit. |
|####| |
+----+--------------+

Slax Tools project are graphical applications that simplify process of generating custom version of live distribution Slax.
Slax Konfigurator is QT application that guides user through downloading Slax ISO image, management of modules, management of custom documents and bootloader configuration. Modified ISO can be installed on USB pen drive or recorded on CD. Slax Konfigurator requires QT, kdesu, sudo, cdrecord or wodim
Slax Module Kreator converts RPM (Red Hat, Fedora, Mandriva), DEB (Debian, Ubuntu), TAR.GZ (Arch Linux) and TGZ (Slackware, KateOS) binary packages into Slax modules. Slax Module Kreator depends on KDE 3.5, mksquashfs and rpm2cpio (RPM only), dpkg (DEB only) and tar (TAR.GZ and TGZ only).
Enhancements:
- Slax Konfigurator - now you can test generated ISO image in QEmu before burning (obviously, QEmu is required for that)
- Slax Module Kreator - it is possible to output modules into selected shared directory instead of creating them in source directory
- various bug fixes

SDL::Tool::Graphic is a module for zooming and rotating SDL::Surface objects.

METHODS

zoom ( surface, xzoom, yzoom, smooth )

SDL::Tool::Graphic::zoom scales a SDL::Surface along the two axis independently.

rotoZoom ( surface, angle, zoom, smooth )

SDL::Tool::Graphic::rotoZoom rotates and fixed axis zooms a SDL::Surface.

grayScale ( surface )

SDL::Tool::Graphic::grayScale rotates and fixed axis zooms a SDL::Surface.

invertColor ( surface )

SDL::Tool::Graphic::invertColor inverts the color of a .

GraphMonkey is a GTK#-based graphic calculator.

This software is written in C# with GTK#.The goal is to obtain a very simple and fast graphic calculator for mono. Its cross-platform: it works on GNU/Linux and Windows.
the software is under the gpl license.

Text::Graph is a Perl extension for generating text-based graphs.

SYNOPSIS

use Text::Graph;
blah blah blah

Some data is easier to analyze graphically than in its raw form. In many cases, however, a full-blown multicolor graphic representation is overkill. In these cases, a simple graph can provide an appropriate graphical representation.

The Text::Graph module provides a simple text-based graph of a dataset. Although this approach is not appropriate for all data analysis, it can be useful in some cases.