Free grid software for linux

Grid-Split plugin splits an image into several images.

You specify number of rows and columns and the files are saved to jpeg, gif or png.

Gridder software is a free, open source set of portlets that simplify the use and administration of grid services, especially for job submission management.
Gridder is specially focused on these goals:
1. Easy Job Submission
Gridder offers a group of portlets for job management. These portlets are useful for the grid administrator and for the end user.
Lets describe a common scenario:
- A chemistry researcher has a new program that makes some complex calculations.
- This program can be run on a cluster to improve its performance.
- This researcher doesnt want to deal with complex Unix commands for executing this program so he asks the - Administrator to install the program in the Grid System and he would expect to be able to execute it through a web page.
- Grid Administrator installs the program on the underlying grid system.
- Grid Administrator uses Gridder Portlets to set up the new program.
- He configures several aspects like parameters, input type, look and feel, etc.
- Grid Administrator can also address security restrictions for program execution.
- Now the researcher can login into the grid system through a friendly web interface and he is able to execute his program and collect the results.
2. Provide Useful Resources
Gridder extends and documents the functionality of the OGCE Bundle.
In our Documentation Section you will find very useful documents and UML diagrams including:
- First steps for installing a grid system
Selection of best portlets. What they are and how to install them
- What GridSphere and OGCE are about
- Our recommended grid architecture
3. Make your grid look good for end users
Grid systems are usually used by science researchers who need resource intensive tasks (like graphics generation or some kind of complex query execution). These users are usually experts on their specific domain, but they have to deal with technical tasks related to computer languages and commands to be able to execute a job on a grid system.
Gridder simplifies this scenario by providing highly usable portlets that feature friendly web interfaces and by customizing the look and feel of open source products in order to provide a consistent look and behaviour, thus taking into account the whole user experience.

Prima::Grids is a Perl module that contains grid widgets.

SYNOPSIS

use Prima::Grids;

$grid = Prima::Grid-> create(
cells => [
[qw(1.First 1.Second 1.Third)],
[qw(2.First 2.Second 2.Third)],
[qw(3.First 3.Second 3.Third)],
],
onClick => sub {
print $_[0]-> get_cell_text( $_[0]-> focusedCell), " is selectedn";
}
);

The module provides classes for several abstraction layers of grid representation. The classes hierarchy is as follows:

AbstractGridViewer
AbstractGrid
GridViewer
Grid

The root class, Prima::AbstractGridViewer, provides common interface, while by itself it is not directly usable. The main differences between classes are centered around the way the cell data are stored. The simplest organization of a text-only cell, provided by Prima::Grid, stores data as a two-dimensional array of text scalars. More elaborated storage and representation types are not realized, and the programmer is urged to use the more abstract classes to derive own mechanisms. To organize an item storage, different from Prima::Grid, it is usually enough to overload either the Stringify, Measure, and DrawCell events, or their method counterparts: get_cell_text, columnWidth, rowHeight, and draw_items.

The grid widget is designed to contain cells of variable extents, of two types, normal and indent. The indent rows and columns are displayed in grid margins, and their cell are drawn with distinguished colors. An example use for a bottom indent row is a sum row in a spreadsheet application; the top indent row can be used for displaying columns headers. The normal cells can be selected by the user, scrolled, and selected. The cell selection can only contain rectangular areas, and therefore is operated with two integer pairs with the beginning and the end of the selection.

The widget operates in two visual scrolling modes; when the space allows, the scrollbars affect the leftmost and the topmost cell. When the widget is not large enough to accommodate at least one cell and all indent cells, the layout is scrolled pixel-wise. These modes are named cell and pixel, after the scrolling units.

The widget allows the interactive changing of cell widths and heights by dragging the grid lines between the cells.

Prima::AbstractGridViewer

Prima::AbstractGridViewer, the base for all grid widgets in the module, provides interface to generic grid browsing functionality, plus functionality for text-oriented grids. The class is not usable directly.

Prima::AbstractGridViewer is a descendant of Prima::GroupScroller, and some properties are not described here. See "Prima::GroupScroller" in Prima::IntUtils.

JColorGrid is a data visualization tool. JColorGrid is a platform-independent Java application for transforming numerical or text data into color-grids.

A color-grid is a generalization of the popular heat map representation that displays information two-dimensionally with an associated color hue. Color-grid representations provide an excellent means of illustrating complex data sets and can be used to identify trends, clusters and extremes in a given data set.

JColorGrid has been designed for ease of use and general utility. Data is entered into JColorGrid from a spreadsheet file (.xls) or a tab-delimited text file. Titles, row and colomn headings, scale titles and data are specified in input file. JColorGrid will represent both numerical and text data. There is no limit on the number of columns and rows.

Configuring the output color-grid is done using the JColorGrid configuration menu. Display colors can be specified for the data range, as well as for data the requires special handling, called exceptions. Additionally, the gradiant of the color scale is specified in the configuration menu. JColorGrid has many flexible color options that users are encouraged to explore. JColorGrid will output to both JPEG and EPS allowing the user to further modify the color-grid output in a suitable graphics editor.

Grid::Transform is a Perl module with fast grid transformations.

SYNOPSIS

use Grid::Transform;

$g = Grid::Transform->new([a..o], rows=>5);
$g->rotate_270->flip_vertical;
print join( , $g->grid), "n";

The Grid::Transform module provides fast methods to transform a grid of arbitrary data types.

METHODS

$g = Grid::Transform->new( @grid, rows=>num, columns=>num )

Creates a new Grid::Transform object. The first argument is a reference to a 1-dimensional array representing a 2-dimensional "row major" (row by row) grid. (A column major grid is simply the counter transpose of a row major one.) The grid may be composed of arbitrary data types. The original array is never modified- all transformations operate on a copy.

At least one dimension must be specified. If the grid and dimensions do not produce a rectangular grid extra empty elements ("") will be added to the grid.

$g2 = $g->copy

Returns a copy of the original Grid::Transform object.

These methods get or set the grid attributes:

@grid = $g->grid
$grid = $g->grid
@grid = $g->grid( @grid )

In list context, returns an array representing the current grid. In scalar context, returns a reference to the array. Accepts an array reference representing a new grid. The new grid will be resized if the dimensions of the previous grid do not match.

$g->rows
$g->rows( $num )

Returns the current number of rows.

$g->columns
$g->cols
$g->columns( $num )

Returns the current number of columns.

All transform methods return the Grid::Transform object, so transforms can be chained.

$g->rotate_90
$g->rotate90

Rotates the grid 90 degrees clock-wise.

a b c d e f g h i j k l a b c d i e a
| e f g h -> j f b
i e a j f b k g c l h d i j k l k g c
l h d

$g->rotate_180
$g->rotate180

Rotates the grid 180 degrees clock-wise.

a b c d e f g h i j k l a b c d l k j i
| e f g h -> h g f e
l k j i h g f e d c b a i j k l d c b a

$g->rotate_270
$g->rotate270

Rotates the grid 270 degrees clock-wise.

a b c d e f g h i j k l a b c d d h l
| e f g h -> c g k
d h l c g k b f j a e i i j k l b f j
a e i

$g->flip_horizontal
$g->mirror_horizontal

Flips the grid across the horizontal axis.

a b c d e f g h i j k l a b c d i j k l
| e f g h -> e f g h
i j k l e f g h a b c d i j k l a b c d

$g->flip_vertical
$g->mirror_vertical

Flips the grid across the vertical axis.

a b c d e f g h i j k l a b c d d c b a
| e f g h -> h g f e
d c b a h g f e l k j i i j k l l k j i

$g->transpose

Flips the grid across the vertical axis and then rotates it 90 degress clock-wise.

a b c d e f g h i j k l a b c d l h d
| e f g h -> k g c
l h d k g c j f b i e a i j k l j f b
i e a

$g->counter_transpose
$g->countertranspose

Flips the grid across the horizontal axis and then rotates it 90 degrees clock-wise.

a b c d e f g h i j k l a b c d a e i
| e f g h -> b f j
a e i b f j c g k d h l i j k l c g k
d h l

$g->fold_right

Folds the columns to the right.

a b c d e f g h i j k l a b c d b c d a
| e f g h -> f g e h
b c a d f g e h j k i l i j k l j k i l

$g->fold_left

Folds the columns to the left.

a b c d e f g h i j k l a b c d d a c b
| e f g h -> h e g f
d a c b h e g f l i k j i j k l l i k j

Grid Underground is a service oriented (SOA)-based framework for writteing Web services.

Besides the framework, the project also focuses on writing grid services like a job scheduler, distributed data storage, and an authentication and authorization system.

MySQLPHPGrid project puts data from a MySQL table in a grid on a webpage.
The grid supports sorting of columns, editing of cells, adding rows, deleting rows and pagination.
You can display a full MySQL table, or just a subset of a table.
This class was developed in the scope of a larger project. While looking for a powerful, yet simple, grid, no useful solution came along and we decided to develop our own small class. It was developed with simplicity in mind and uses the underlying database engine (MySQL) to do the data processing and the PHP engine to do the web rendering. It uses AJAX requests to update cells. Note that no extensive security tests have been performed!!! We do not take any responsibility whatsoever of the correct or intended working of the class or any direct or indirect consequences of using this class. However, you can use it and adapt it to your own needs as long as you respect the rules of the (lgpl) license in the release.
Enhancements:
- This release uses the mootools library for AJAX update requests.
- There are some visual effects on update and delete.
- There are tooltips on the add, delete, and sort buttons.
- Upon using add, the grid navigates to the added row.
- Style sheets have been updated.
- There are several minor bugfixes.