SaVi satellite constellation visualizer / News: Recent posts

SaVi satellite constellation visualization software packaged for Cygwin

http://savi.sourceforge.net/install/

SaVi is software for simulation and visualization of satellite orbits, especially satellite constellations such as Iridium, Globalstar and O3b.

As well as being available as a Debian package for easy installation on Ubuntu and other Linux distributions, version 1.5.1 of SaVi is now also available as a Cygwin package for easy installation on Microsoft Windows.

Posted by Lloyd Wood 2017-07-05 Labels: satellite 3D OpenGL

SaVi 1.5.1 satellite constellation visualization software released

http://savi.sourceforge.net/

SaVi is software for simulation and visualization of satellite orbits, especially satellite constellations such as Iridium, Globalstar and O3b.

The SaVi 1.5.1 release (2 July 2017) adds a -max-transmit-altitude flag, improves Cygwin Tcl/Tk 8.6 compatibility, and includes minor bugfixes.

Posted by Lloyd Wood 2017-07-02 Labels: satellite 3D OpenGL

SaVi 1.5.0b satellite constellation visualization software released

http://savi.sourceforge.net/

SaVi is software for simulation and visualization of satellite orbits,
especially satellite constellations such as Iridium, Globalstar and O3b.

SaVi 1.5.0b (June 2017) includes rounding fixes to the constellation
generation tools in tcl/constellations.tcl to improve accuracy.

SaVi 1.5.0a (December 2016) includes two one-line codefixes to SaVi 1.5.0
to prevent bugs:
- in tcl/constellations.tcl to allow loading of unnamed TLEs (elsets)
without a name error.
- in tcl/coverage_frames.tcl to enable better detection of gifsicle,
if installed.... read more

Posted by Lloyd Wood 2017-06-16 Labels: satellite 3D OpenGL

SaVi 1.5.0a satellite constellation visualization software released

http://savi.sourceforge.net/

SaVi is software for simulation and visualization of satellite orbits,
especially satellite constellations such as Iridium, Globalstar and O3b.

SaVi 1.5.0a (December 2016) includes two one-line codefixes to SaVi 1.5.0
to prevent bugs:
- in tcl/constellations.tcl to allow loading of unnamed TLEs (elsets)
without a name error.
- in tcl/coverage_frames.tcl to enable better detection of gifsicle,
if installed.... read more

Posted by Lloyd Wood 2016-12-11 Labels: satellite 3D OpenGL

SaVi 1.5.0 satellite constellation visualization software released

SaVi is software for simulation and visualization of satellite orbits, especially satellite constellations such as Iridium, Globalstar and O3b.

The SaVi 1.5.0 release (September 2016) allows coverage maps to be saved directly as GIF image files, enables saving of animated coverage maps as gifanims by using gifsicle, adds ability to load TLE elsets directly from web, works to improve building on SGI Irix, handles Tcl's interp->result being considered deprecated in Tcl 8.5 and strongly discouraged in 8.6, fixes dynamic coverage compilation error seen in recent clang, fixes path-setting problems in launch script, includes instructions for building under Windows 10 Anniversary Edition, removes legacy numesh.oogl and has texturemapping always on.

Posted by Lloyd Wood 2016-09-04 Labels: satellite 3D OpenGL

SaVi 1.4.9 satellite constellation visualization software released

SaVi is software for simulation and visualization of satellite orbits, especially satellite constellations such as Iridium, Globalstar and O3b.

The SaVi 1.4.9 release (30 January 2016) updates Geomview's footprints and cones dynamically when the coverage slider is used, enables coverage 'Show map' checkbox to control Geomview behaviour, adds speculative LeoSat and OneWeb star constellation simulations, removes now-legacy texturemap disk scratchfile needed by Geomview 1.8.1 to remove tmpnam() call, which was a showstopper for e.g. the Ubuntu linker, and improves finding binary executable on launch.

Posted by Lloyd Wood 2016-01-30 Labels: satellite 3D OpenGL

SaVi 1.4.7 released

SaVi is software for simulation and visualization of satellite orbits, especially satellite constellations such as Iridium, Globalstar and O3b.

The SaVi 1.4.7 release (5 January 2015) adds a duochrome option showing coverage shading over land and sea, models the equator and equatorial exclusion zones in the fisheye window, by showing parallels, used that to correct the Skybridge 64-satellite script, adds a -min-transmit-altitude flag and min_transmit_altitude bound variable to set a height at which elliptical constellations turn off signal away from apogee, and makes compilation easier on recent Mac OS X (10.9 and later).

Posted by Lloyd Wood 2015-01-04 Labels: satellite 3D OpenGL

SaVi 1.4.5 and Ubuntu packages available

http://savi.sf.net/

SaVi 1.4.5, for Satellite constellation Visualization, is now available. SaVi lets you simulate satellite orbits and coverage, and includes simulations of complete systems such as GPS, Galileo, Iridium, or O3b Networks. SaVi needs only Tcl/Tk running on unix or compatible (including Linux, Mac OS X and Cygwin). 3D rendering of satellites requires Geomview, another SourceForge project.... read more

Posted by Lloyd Wood 2012-02-19 Labels: satellite 3D OpenGL

SaVi 1.4.2 released

http://savi.sf.net/

SaVi 1.4.2, for Satellite constellation Visualization, is now available. SaVi lets you simulate satellite orbits and coverage, and includes simulations of complete systems such as GPS, Galileo, Iridium, or 03b Networks. SaVi needs only Tcl/Tk running on unix. 3D rendering of satellites requires Geomview, another SourceForge project.

SaVi 1.4.2 includes fixes for a couple of rare Tcl/Tk errors, makes -redrawn-menus the default on Mac OS X to work around a bug in using the 10.5 Leopard menubar, and adds a View Source... option.... read more

Posted by Lloyd Wood 2009-02-10 Labels: satellite 3D OpenGL

SaVi 1.4.1 released

http://savi.sourceforge.net/

SaVi 1.4.1 is now available. SaVi lets you simulate satellite orbits and coverage, and includes simulations of complete systems such as GPS, Galileo, Iridium, or 03b Networks. SaVi needs only Tcl/Tk running on unix. 3D rendering of satellites requires Geomview, another SourceForge project.

The SaVi 1.4.1 release fixes editing problems with 1.4.0, and adds a complete help and documentation system that describes and explains the available simulated constellations.

Posted by Lloyd Wood 2009-01-12 Labels: satellite 3D OpenGL

SaVi 1.4.0 released

This new release of SaVi, the satellite constellation visualization software, lets you simulate systems like Iridium, Globalstar and Sirius Radio in 2D and 3D on your desktop.

The SaVi 1.4.0 release includes new features:
- satellite names
- shows sun lighting on coverage.
- vastly improved high-performance coverage texturemap piping to Geomview.
- varying (1-19) levels of coverage shading, useful for viewing high-diversity constellations such as GPS and Galileo
- can save high-resolution renderings and screen snapshots of the Geomview camera, either singly or in sequence for postprocessing to make movies.... read more

Posted by Lloyd Wood 2008-06-20 Labels: satellite 3D OpenGL

SaVi 1.3.2a released

The SaVi 1.3.2a revision (1 November 2006) makes SaVi easier to build on Linux systems, by adjusting the Linux makefile definitions. See the RELEASE-NOTE file.

The SaVi 1.3.1 and 1.3.0 packages have also been revised in this way.

Posted by Lloyd Wood 2006-11-01 Labels: satelllite 3D OpenGL

SaVi 1.3.2 released

http://savi.sf.net/

SaVi is satellite visualization software that lets you create, run, examine, and modify satellite orbits in two and three dimensions. Simulations of Iridium, Globalstar, Galileo, GPS, and other satellite constellations are included. SaVi requires Tcl and Tk on a system with Unix libraries. SaVi works well with the 3D renderer Geomview. Geomview is optional, though recommended for its 3D rendering capabilities.... read more

Posted by Lloyd Wood 2006-09-21 Labels: satelllite 3D OpenGL

SaVi 1.3.1 released

http://savi.sourceforge.net/

This new release of SaVi, the satellite constellation visualization software, lets you simulate satellite systems such as Iridium, Globalstar and Sirius Radio in 2D and 3D on your desktop. This release now supports Mac OS X, and includes all work done for a workshop on satellite applications and constellations given as a guest lecturer at the International Space University Summer Session.... read more

Posted by Lloyd Wood 2006-09-09 Labels: satellite 3D OpenGL

SaVi development with gcc 4.0 and Mac OS X

SaVi satellite constellation visualization
http://savi.sourceforge.net/

Latest SaVi development gets SaVi building cleanly with gcc 4.0, which permits SaVi to run on Intel Mac OS X using Fink. Check out the latest SaVi from cvs, or help yourself to the 6 August interim SaVi snapshot from:

http://www.ee.surrey.ac.uk/Personal/L.Wood/software/SaVi/src/unreleased/

Posted by Lloyd Wood 2006-08-07 Labels: satellite 3D OpenGL

SaVi 1.3.0 released

This new release of SaVi, the satellite constellation visualization software, lets you simulate systems like Iridium, Globalstar and Sirius Radio in 2D and 3D on your desktop. This release includes all work done for a workshop on satellite applications and constellations given as a guest lecturer at the International Space University Summer Session.

The SaVi 1.3.0a release (19 July 2006) adds satellites counts to the fisheye view, builds on FreeBSD with make ARCH="freebsd", builds on Debian with make ARCH="debian", improves error reporting when the user passes invalid command-line parameters, sets coverage in the Ellipso script, fixes an error when the user specifies a coverage map with extension .gz, ask the user what size Coverage panel is desired, allows satellites and coverage to be edited to hidden in the Coverage panel, improves layout of the Fisheye view, adds simulation of the Disaster Monitoring Constellation and Japanese quasi-geostationary systems, properly handles directory names containing spaces, and, at long last, adds a SaVi user manual.

Posted by Lloyd Wood 2006-07-18 Labels: satellite 3D OpenGL

SaVi 1.2.8 released

http://savi.sourceforge.net/

SaVi allows you to simulate the movement of satellite constellations such as Galileo and Globalstar, in two and three dimensions. (3D viewing requires Geomview, also from Sourceforge.)

The SaVi 1.2.8 release makes the fisheye window a Tk canvas, removing the need to compile with X libraries, bringing the fisheye to Cygwin Insight Tcl users, and making the SaVi binary 20% smaller.... read more

Posted by Lloyd Wood 2006-01-02 Labels: satellite 3D OpenGL

SaVi 1.2.7a released

http://savi.sourceforge.net/

SaVi 1.2.7a includes a version-specific configuration script that refers to savi1.2.7/ rather than savi-dev/. There are no other changes.

SaVi 1.2.7 adds a spherical projection option to the coverage panel, allowing you to see the Earth as a sphere without requiring Geomview. Some minor cosmetic bugs in updating Geomview when static elements like axes are turned on or off, and in updating coverage panel colors when the coverage panel is closed and later reopened, are also fixed.

Posted by Lloyd Wood 2005-04-25 Labels: satellite 3D OpenGL

SaVi 1.2.7 released

SaVi 1.2.7 adds a spherical projection option to the coverage panel, allowing you to see the Earth as a sphere without requiring Geomview. Some minor cosmetic bugs in updating Geomview when static elements like axes are turned on or off, and in updating coverage panel colors when the coverage panel is closed and later reopened, are also fixed.

Previous releases of SaVi have been repackaged today to correct the Makefile_defs. naming problem that resulted from packaging on Cygwin and a WIndows filesystem. SaVi 1.2.7 has had its Makefile naming changed to permanently avoid this problem on all platforms.

Posted by Lloyd Wood 2005-04-24 Labels: satellite 3D OpenGL

SaVi 1.2.6 released

SaVi 1.2.6 does a much improved job of simulating satellite constellations, such as Iridium and Globalstar, in 3D on your desktop.

SaVi 1.2.6 improves the Geomview rendering experience by making Geomview faster and more responsive, particularly when texturemapping. SaVi 1.2.6 makes dynamic texturemapping of coverage a user menu option, uses temporary files correctly for texturemaps, and can optionally be built to use zlib for on-the-fly compression of dynamic texture maps for Geomview. SaVi 1.2.6 adds an option to turn the Earth outline map on and off.... read more

Posted by Lloyd Wood 2005-02-12 Labels: satellite 3D OpenGL

SaVi 1.2.5 released

SaVi 1.2.5 polishes and improves SaVi considerably over previous releases.

The coverage panel is beefed up, with a menubar and playbar making it easier to use, and with the ability to display coverage in an almost infinite variety of colours.

Texturemapping under Geomview has been improved and is now of much visibly higher quality.

The installation process has been made more helpful.

Posted by Lloyd Wood 2005-01-07 Labels: satellite 3D OpenGL

SaVi 1.2.4 released

SaVi 1.2.4, released 21 December 2004:
- improves README documentation and reporting on build errors,
- improves piping initialisation and compatibility with 64-bit architectures under Geomview,
- improves opening windows on unusual X displays,
- adds Galileo and Draim tetrahedral simulations.

Enjoy using SaVi. Merry Christmas and happy holidays.

Posted by Lloyd Wood 2004-12-21 Labels: satellite 3D OpenGL

SaVi 1.2.3 released

SaVi 1.2.3 adds support for compiling under gcc 3.3.1 (addressing gcc's complaint about building version.c). It's also the fastest release of SaVi ever, with significant speedups when running under Geomview. Better support for building under Cygwin is included.

Posted by Lloyd Wood 2004-04-15 Labels: satellite 3D OpenGL

SaVi development with gcc 3.3.1 and Cygwin

Latest SaVi development gets SaVi building cleanly with gcc 3.3.1, and improves building under Cygwin 1.5.5-1 with Tcl/Tk 8.4. Check out the latest from cvs, or help yourself to the 17 January snapshot from:

http://www.ee.surrey.ac.uk/Personal/L.Wood/software/SaVi/src/unreleased/

Posted by Lloyd Wood 2004-01-18 Labels: satellite 3D OpenGL

SaVi 1.2.2a released

SaVi 1.2.2a is a minor revision to the 1.2.2 package, replacing one Tcl statement that prevented running on pre-Tcl 8.4 systems, and removing unnecessary CVS subdirectories.

Like 1.2.2, 1.2.2a features dynamic texturemapping, improved projections and coverage maps, and a host of other improvements to 1.2.1a.

Posted by Lloyd Wood 2004-01-10 Labels: satellite 3D OpenGL