[Savannah-register-public] [task #9091] Submission of Sky Orthographic Projector

[Marc Betoule]

URL:
  <http://savannah.nongnu.org/task/?9091>

                 Summary: Submission of Sky Orthographic Projector
                 Project: Savannah Administration
            Submitted by: betoule
            Submitted on: mar 03 fév 2009 19:19:10 CET
         Should Start On: mar 03 fév 2009 00:00:00 CET
   Should be Finished on: ven 13 fév 2009 00:00:00 CET
                Category: Project Approval
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
        Percent Complete: 0%
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                  Effort: 0.00

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Details:

A new project has been registered at Savannah 
This project account will remain inactive until a site admin approves or
discards the registration.


= Registration Administration =

While this item will be useful to track the registration process, *approving
or discarding the registration must be done using the specific Group
Administration
<https://savannah.nongnu.org/siteadmin/groupedit.php?group_id=10143> page*,
accessible only to site administrators, effectively *logged as site
administrators* (superuser):

* Group Administration
<https://savannah.nongnu.org/siteadmin/groupedit.php?group_id=10143>


= Registration Details =

* Name: *Sky Orthographic Projector*
* System Name:  *skop*
* Type: non-GNU software & documentation
* License: GNU General Public License v2 or later

----

==== Description: ====
SkOP is an hardware-accelerated viewer for HEALPix sky maps.
The HEALPix pixelisation scheme samples the sphere into equal area pixels.
Pixel values are then stored into a one dimensionnal vectors. SkOP provides
convenient vizualisation of data stored in this way (usually astrophysical
data, see e.g. the data of the WMAP space mission).
The projection of data on the sphere is computed directly on the GPU through
an implementation of HEALPix routines in GLSL shaders. Performing the
projection on the GPU allows fast (real-time) and flexible rendering of the
data at full resolution. It avoids the time consuming step of projecting the
data (using the CPU) in a texture that will be rendered by the GPU.
The user interface is made in Qt, and already implements a few features like
screenshots, color scale adjustement, map switching. Many others are still on
the roadmap. The aim is to provide an efficient and free visualisation
software for the data of the incoming Planck space mission.


==== Other Software Required: ====
Qt4 + GPLv3 + http://www.qtsoftware.com/
cfitsio + (GPLv2/other) + http://heasarc.gsfc.nasa.gov/fitsio
GLEW + (Modified BSD License, the Mesa 3-D License, the Khronos License and
GNU GPL) + http://glew.sourceforge.net


==== Other Comments: ====
The software can be used with the mesa software rendering driver, but
requires hardware acceleration to be run confortably. According to
http://xorg.freedesktop.org/wiki/RadeonFeature this is already available in
free drivers for some ATI cards, but I have not been able to test it yet.


==== Tarball URL: ====
http://www.apc.univ-paris7.fr/~betoule/lib/exe/fetch.php?media=skop.tar.gz






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