Free graphical software for linux

Ubuntu Bootloader Manager is a graphical user interface (GUI) for configuring GRUBs menu.lst.

This app is still very alpha, use at your own risk and make sure to make a backup of our grub config file (/boot/grub/menu.lst).

PDL::Graphics::AquaTerm is a Perl module that provides access to the AquaTerm Mac OS-X graphics terminal.

SYNOPSIS

# example 1

use PDL;
use PDL::Graphics::LUT;
use PDL::Graphics::AquaTerm;
my $x_size = 255; my $y_size = 255;
aquaOpen({SIZE_X => $x_size, SIZE_Y => $y_size});
aquaSetColorTable(cat(lut_data(idl5)));
my $a = xvals(zeroes(byte,$x_size,$y_size));
aquaBitmap($a);
# example 2
use PDL;
use PDL::Graphics::AquaTerm;
my $x_size = 255; my $y_size = 255;
aquaOpen({WIN_NUM => 1, SIZE_X => $x_size, SIZE_Y => $y_size});
my $a = sin(xvals(zeroes(float, $x_size, $y_size)) * 0.1);
aquaBitmap($a, {AUTO_SCALE => 1});

This module interfaces PDL directly to the AquaTerm Mac OS-X graphics terminal. It is primarily intended for quickly and easily displaying bitmap images.

The coordinate system is defined by the window size (given in pixels) with (0,0) at the bottom left corner of the window. This means that if the window is set to be 300 x 200, then the bottom left corner will have coordinates (0,0) and the upper right corner will have coordinates (300,200). Anything that is drawn outside this boundary will be automatically clipped.

FUNCTIONS

aquaOpen

Open a new AquaTerm window

Usage: aquaOpen(); # open the window with the defaults
Usage: aquaOpen({SIZE_X => 200, SIZE_Y => 200, BACK_COLOR => [0.0, 0.0, 0.0]});

Opens a new AquaTerm window, it also starts AquaTerm if necessary.

Options recognized :

SIZE_X - window x size in pixels (default = 400)
SIZE_Y - window y size in pixels (default = 300)
WIN_NUM - The window number, used by the drawing commands to specify which window to draw in
WIN_TITLE - A title for the window, if desired (default = "Aquaterm.pm")
BACK_COLOR - [r, g, b] the windows background color (default = [1.0, 1.0, 1.0], i.e. white)
WARN_ON - set to 1 to turn on warning messages, 0 to turn off (default = 1)
DEBUG_ON - set to 1 to turn on debugging message, 0 to turn off (default = 0)
aquaBitmap

Display a PDL as a bitmap.

Usage: aquaDisplay($my_img); # display $my_img as a bitmap in the currently open window
Usage: aquaDisplay($my_img, {AUTO_SCALE => 1.0, TEXT => "my image", TEXT_C => [1.0, 0.0, 0.0]});

Displays a PDL as a bitmap. The PDL can be of size either (m,n) or (3,m,n). PDLs of size (m,n) are converted to indexed color based on the current color table (see aquaSetColorTable). PDLs of size (3,m,n) are displayed as true-color images with the first dimension specifying the color (RGB). Unless a re-scaling is specified, the minimum value displayed is 0.0 and the maximum is 255.0.

Options recognized :

DEST_X - position of the left side of the bitmap in pixels (default = 0)
DEST_Y - position of the bottom of the bitmap in pixels (default = 0)
DEST_W - width of the bitmap to be displayed (default = width of the PDL)
DEST_H - height of the bitmap to be displayed (default = height of the PDL)
AUTO_SCALE - if set equal to 1, the PDL will be rescaled such that its
minimum value is 1 and its max is 255 (default = 0)
M_MIN - the minimum value to be displayed (default = 0.0)
M_MAX - the maximum value to be displayed (default = 255.0)
WIN_NUM - specify which window to draw in (default = current window)
TEXT - text to display on the bitmap
TEXT_X - x location of the text in pixels (default = 6)
TEXT_Y - y location of the text in pixels (default = 10)
TEXT_C - RGB color of the text, (default = [0.0, 0.0, 0.0], i.e. black)
aquaSetColorTable

Set the color table

Usage: aquaSetColorTable(cat(lut_data(idl5))); # set the color table to idl5

Makes a local copy of a user supplied color table. The color table must be a 256 x 4 pdl of the form (l,r,g,b), as would be generated by the command $ct = cat(lut_data("xyz")). The l value is ignored. The r, g and b values should be in the range 0.0 - 1.0.

aquaPolyLine

Draws a (2,n) PDL as a line

Usage: aquaPolyLine($line, {WIDTH => 3, COLOR => [0.0, 0.0, 0.0]}); # draw $line black with width 3

Draw a poly-line between a set of points given by a PDL of size (2,n). The first dimension of the PDL gives the x & y position of the individual points, n is the total number of points.

Options recognized WIN_NUM - which window to draw the line in ERASE - clear the selected window prior to drawing the line WIDTH - line width (default = 1) CAPS - line cap style, Im still unsure exactly what this is... COLOR - RGB color of the line (default is black)

aquaText

Draw text

# draw red hello world at position 20, 30 in the current window
Usage: aquaText("hello world", X => 20, Y => 30, COLOR => [1.0, 0.0, 0.0]);

Draws text.

Options recognized WIN_NUM - which window to draw the text in ERASE - clear the current window prior to drawing the text NAME - name of the font to use (default = "Times-Roman") ANGLE - angle to display the text relative to the horizontal in degrees (default = 0.0) X - position in the window of the text anchor point (which depends on the justification of the text) (default = 6) Y - position in the window of the bottom of the text (default = 10) JUST - text justification, left = 0, center = 1, right = -1? (default = 0) SIZE - font size in points (default = 12) COLOR - text color (default is black)

aquaMouse

= for ref

Returns location of next mouse click in the active window

= for usage

($mx, $my) = aquaMouse();

Returns the location of the next mouse click in the active window as a 2 element array. The elements of the array are the x and y coordinates of the mouse click in pixels. The coordinates are relative to the bottom left corner of the active area of the window.

Options recognized WIN_NUM - which window to get the mouse click in

Graphics::ColorPicker is a Perl module for WYSIWYG web applications that allow selection of HEX color numbers.

SYNOPSIS

use Graphics::ColorPicker;
or
require Graphics::ColorPicker;

make_page($path_to_images);
send_page($html_txt,$type);
$time_string = http_date($time);
$name = script_name;
$html_text=frames($websafe);
$html_text = msie_frame;
$html_text=picker($darkimg,$liteimg,$size,$bsize,greyimg);
$html_text=no_picker;
$html_text=cp216_ds($clrdot,$border,$square)
$javascript_text = jslib;
$html=make_buttons(%look_n_feel,$url,$active,@buttons,$xtra);
$html_text=pluck($color);

qPyProfiler is a GUI (Graphical User Interface) to the Python profiler. It allow user to profile python application and browse profiling result in a convenient way. This projet starts on june 2007.

I started this project because I do not found any free software that do that for python profiling.

The project is a free software licenced under the GNU GPL V2.

PDL::Graphics::X is a PDL OO access to X windows.

SYNOPSIS

# example 1

use PDL;
use PDL::Graphics::X;

my $x_size = 255; my $y_size = 255;
my $win1 = PDL::Graphics::X->new({SIZE_X => $x_size, SIZE_Y => $y_size});
my $a = xvals(zeroes(byte,$x_size,$y_size));
$win1->imag($a);

# example 2

use PDL;
use PDL::Graphics::X;

my $win1 = PDL::Graphics::X->new({WIN_TITLE => "PDL", SIZE_X => 210, SIZE_Y => 210});
my $x = pdl(10, 100, 100, 10);
my $y = pdl(10, 10, 100, 100);
$win1->line($x, $y, {COLOR => [1,0,0], LINEWIDTH => 5});

This module interfaces PDL directly to X windows in a OO fashion. Each X object has an associated X window and handles opening, closing and drawing in the associated window. Hopefully it is reasonably intuitive to use. The vision is that this will serve as a base upon which other fully native PDL graphics modules could be built.

Common options such as LINEWIDTH are remembered from function call to function call, i.e. if you call $win1->line($x, $y, {COLOR => [1,0,0], LINEWIDTH => 5}) then the rectangle drawn by $win1->rect(10, 10, 190, 190) will also have a red border of width equal to 5.

FUNCTIONS

new

Constructor for a new X window object.

Usage: my $win1 = PDL::Graphics::X->new(); # open the window with the defaults
Usage: my $win1 = PDL::Graphics::X->new({WIN_TITLE => "PDL", SIZE_X => 210, SIZE_Y => 210});

Creates a new X object & its associated X window.

Options recognized :

SIZE_X - window x size in pixels (default = 400)
SIZE_Y - window y size in pixels (default = 300)
WIN_TITLE - A title for the window, if desired (default = "X")
BACK_COLOR - [r, g, b] the windows background color (default = [1.0, 1.0, 1.0], i.e. white)
imag

Display a PDL as a bitmap.

Usage: $win1->imag($my_img); # display an image with default size and scaling
Usage: $win1->imag($my_img, {AUTO_SCALE => 1.0}); # display an auto-scaled image

Displays a PDL as a bitmap. The PDL can be of size either (m,n) or (m,n,3). PDLs of size (m,n) are converted to indexed color based on the current color table (see ctab). PDLs of size (m,n,3) are displayed as true-color images with the last dimension specifying the color (RGB). Unless a re-scaling is specified, the minimum value displayed is 0.0 and the maximum is 255.0. If the PDL is larger then the window then the window will be re-scaled to accomodate the PDL;

Options recognized :

DEST_X - position of the left side of the bitmap in pixels (default = 0)
DEST_Y - position of the bottom of the bitmap in pixels (default = 0)
DEST_W - width of the bitmap to be displayed (default = width of the PDL)
DEST_H - height of the bitmap to be displayed (default = height of the PDL)
AUTO_SCALE - if set equal to 1, the PDL will be rescaled such that its
minimum value is 1 and its max is 255 (default = 0)
MIN - the minimum value to be displayed (default = 0.0)
MAX - the maximum value to be displayed (default = 255.0)
ctab

Set the color table

Usage: $win1->ctab(cat(lut_data(idl5))); # set the color table to idl5

Makes a local copy of a user supplied color table. The color table must be a 256 x 4 pdl of the form (l,r,g,b), as would be generated by the command $ct = cat(lut_data("xyz")). The l value is ignored. The r, g and b values should be in the range 0.0 - 1.0.

line

Draws a vector as connected points.

Usage: $win1->line($x, $y, {COLOR => [0,0,0], LINEWIDTH => 5}); # draw black line of width 5

Draw a poly-line between a set of points given by two PDLs of size (n). The first PDL gives the x position & the second piddle gives the y position of the individual points, n is the total number of points.

Options recognized

LINEWIDTH - line width
LINESTYLE - line style (0 = normal, 1 = dashed)
COLOR - [r, g, b] color of the line
rect

Draws a rectangle.

Usage: $win1->rect($x1, $y1, $x2, $y2);

Draws a rectangle with corners at ($x1, $y1) and ($x2, $y2).

Options recognized

LINEWIDTH - line width
LINESTYLE - line style (0 = normal, 1 = dashed)
COLOR - [r, g, b] color of the line
circle

Draws a circle.

Usage: $win1->circle($x, $y, $r);

Draws a circle centered at ($x, $y) with radius $r.

Options recognized

LINEWIDTH - line width
LINESTYLE - line style (0 = normal, 1 = dashed)
COLOR - [r, g, b] color of the line
ellipse

Draws an oval.

Usage: $win1->ellipse($x, $y, $a, $b);

Draws a oval centered at ($x, $y) with x size $a and y size $b.

Options recognized

LINEWIDTH - line width
LINESTYLE - line style (0 = normal, 1 = dashed)
COLOR - [r, g, b] color of the line
erase

Erases the contents of the window.

Usage: $win1->erase();

Resets the contents of the window to the background color.

text

Draw text

Usage: $win1->text("hello", $x, $y, $angle);

Draws text starting at $x and $y with baseline angle given by $angle. If you know how to draw truly rotated text in X, please let me know. How fonts are currently dealt with is imperfect at best. So that the font size can easily be changed, a search is performed for a scalable font with specified font name. If such a font cannot be found then the text will be displayed with the default X font and no font scaling.

Options recognized

FONT_NAME - name of the font family (default = "courier")
CHARSIZE - desired font size in points
COLOR - [r, g, b] color of the font

cursor

Returns the location of next mouse click in the window

Usage : my($x,$y) = $win1->cursor();

Returns the x & y locations of the next mouse click in the window.

we_exist

Returns 0 if the window still exists, 1 if it does not

Usage : my $exists = $win1->we_exist();

Originally written to help debug some problems with associated with X windows being closed by the user with a mouse. Preserved on the off chance that it will be useful to a dependent module.

winsize

Returns the window size & maximum window size (in pixels) in x and y

Usage : my ($win_x, $win_y, $max_x, $max_y) = $win1->winsize();

Primarily intended for use by dependent modules that might want to know what the current and maximum window size is.

resize

resizes a window & returns the new size (which might not be what you requested)

Usage : my ($new_x, $new_y) = $win1->resize($size_x, $size_y);

Primarily intended for use by dependent modules that might want to resize a window without destroying it and creating another one.

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.)

Mesa is a 3-D graphics library with an API which is very similar to that of OpenGL. To the extent that Mesa utilizes the OpenGL command syntax or state machine, it is being used with authorization from Silicon Graphics, Inc.(SGI). However, the author does not possess an OpenGL license from SGI, and makes no claim that Mesa is in any way a compatible replacement for OpenGL or associated with SGI. Those who want a licensed implementation of OpenGL should contact a licensed vendor.
Please do not refer to the library as MesaGL (for legal reasons). Its just Mesa or The Mesa 3-D graphics libraryand thats all.
Enhancements:
New features
- OpenGL 2.0 and 2.1 API support.
Bug fixes
- Fixed a few fog-related bugs.
- Fixed broken GLSL mix() function.
- Fixed broken GLSL exp() functions.
- Fixed GLSL mod4(vec4, vec4) bug.
- Implemented GLSL asin(), acos(), atan() functions.
- Fixed an R300 driver bug that caused Xorg composite manager to crash
- Fixed R300 vertex program/matrix bug (10848)
- GLSL dFdx() and dFdy() work for fragment program inputs now (texcoords)
- Specifying an invalid texture unit as a sampler could lead to a crash
- The GLX protocol request for glXDestroyPBuffer() was incorrect (bug 10983)
- ARB vp state.light[n].half value was incorrect (bug 10987)
- Fixed a positional light source bug (bug 11009)
- Fixed point size attenuation problem (bug 11042)
- glPopAttrib didnt restore texture objects LOD bias (bug 11049)
- Fixed a TLS / TEXTREL problem (bug 7459)
Internal code changes
- Some texture code consolidation and simplifiction (Ian Romanick)
- R300 driver clean-ups.
Driver Status
- Driver Status
---------------------- ----------------------
- DRI drivers varies with the driver
- XMesa/GLX (on Xlib) implements OpenGL 2.1
- OSMesa (off-screen) implements OpenGL 2.1
- Windows/Win32 implements OpenGL 2.1
- Glide (3dfx Voodoo1/2) implements OpenGL 1.3
- SVGA unsupported
- Wind River UGL unsupported
- DJGPP unsupported
- GGI unsupported
- BeOS unsupported
- Allegro unsupported
- D3D unsupported

Gd is a graphics library. It allows your code to quickly draw images complete with lines, arcs, text, multiple colors, cut and paste from other images, and flood fills, and write out the result as a PNG or JPEG file. This is particularly useful in World Wide Web applications, where PNG and JPEG are two of the formats accepted for inline images by most browsers.

In gd 1.0, it stood for "gif draw." After the Unisys patent on the LZW compression used in GIF came to light and GIF support was dropped, it did not officially stand for anything, but lets just say "graphics draw" and leave it at that. (GIF support is back, thanks to the expiration of the patent, but gd can draw much more than GIFs.)

This is a quick install guide:

1. Type ./configure
2. Type make install