VisiOmatic is a web client for the IIPImage server, which allows to visualize and navigate through large science images from remote locations. It is based on the Leaflet Javascript library, and works on both touch-based and mouse-based devices. Authors: Emmanuel Bertin (IAP), Chiara Marmo (GEOPS), Ruven Pillay (C2RMF)

What's new?

VisiOmatic demos

• VisiOmatic 2
  • A 20k x 20k, 5-channel image stack of the CFHTLS D-1 field (α=2^h25^m59^s, δ=-04°29'40'') covering about 1 square degree.
  • A very large (512k x 512k), single channel image stack of SDSS release 9 i-band exposures centered on NGC4565 (α=12^h36^m21^s, δ=+25°59'22'') and covering about 2500 square degrees.
• VisiOmatic 1
  • A set of three g,r, and z-band image stacks of DECam exposures centered on IC2391 (α=08^h39^m07^s, δ=+52°50'35'') obtained for the DANCe project, illustrating real-time synchronization between views with different pixel grids.
  • r, i and K_s-band image stacks of Megacam and WFCam exposures covering about 100 square degrees around the Pleiades star cluster (α=03^h48^m19^s, δ=+24°24'15''), and featuring custom overlays with the brightest Pleiades members amongst those identified by Sarro et al. (2014) as part of the DANCe project. The small (clickable) lines represent the apparent paths that the stars will cover during the next 1000 years.

Getting and installing VisiOmatic

The VisiOmatic development repository is on GitHub.

To make VisiOmatic work on your system you will need to install first

• an HTTP server (e.g., Apache)
• our version of iipsrv, the IIPImage server
• the STIFF package

1. Download the VisiOmatic package and uncompress it, or get the latest development version with the shell command
   git clone https://github.com/astromatic/visiomatic.git
    
2. Copy the VisiOmatic package directory to a path accessible from your HTML server e.g.,
   cp -r visiomatic /var/www/html/
    
3. Download and Install the Leaflet library and copy it to a path accessible from your HTML server e.g.,
   cp -r Leaflet /var/www/html/
    
4. Convert a set of FITS images with STIFF, e.g.:
   stiff -BITS_PER_CHANNEL -32 -COPY_HEADER Y /path/to/image*.fits -OUTFILE_NAME /path/to/image.ptif
    
5. Create a web page to visualize your image: checkout this commented example.

Acknowledging VisiOmatic

Bertin, Pillay and Marmo 2015: Web-Based Visualization of Very Large Scientific Astronomy Imagery, Astronomy & Computing 10,43 [PDF] [BibTeX entry].