angular distance

• an improved P-V Diagram: changed the X-axis to display an angular distance (in arcseconds) instead of a P-V line pixel number

an improved P-V Diagram

• corrected a velocity axis direction in the P-V Diagram for datasets with a reversed frequency / velocity axis
• added a user-moveable horizontal velocity reference line at v=0 (mid-velocity if there is no zero) to the P-V Diagram

maintenance

• corrected the auto-detection of radio FITS files (the previous version would incorrectly detect them as optical) for the newly added NRO45M datasets, based on the FITS header telescope keyword

new NRO45M data

• updated the client/server ZFP compression library to v1.0.0
• started loading the client-side JavaScript library d3.js from the global Content Delivery Network (CDN)
• added support for new NRO45M datasets
• recompiled WebAssembly with the latest emscripten compiler
• on-going work on the NOBEYAMA FUGIN composite RGB support

mongoose C API upgrade

• updated the mongoose C networking library to v7.10
• re-worked internal messaging to take advantage of the new mongoose v7.10 lock-free message queue (improved performance)
• applied glib atomic reference counting to the user session C structure (improved reliability)

Spectral Lines Hard Limit

• Introduced a hard limit of 500 Splatalogue spectral lines that can be displayed simultaneously in the website. This has been done in order to prevent an information overload and a website slowdown. The 500 lines that are displayed will be chosen as a random subset of the larger than 500 original number of lines. Please refine your search criteria to avoid a hard limit. If the hard limit has been reached information will be displayed in the web browser JavaScript console (press F12 to view it in most browsers).
• On-going work on NOBEYAMA FUGIN

maintenance

• overhauled the server logging functionality (moved from FORTRAN to C)
• ensured compatibility with the new gcc / gfortran v13
• updated http.c so that it compiles cleanly with the latest glib g_string_free(..., FALSE) function

page loading improvements

• speeded up initial web page loading by using async / await within JavaScript
• switched loading of the 3D surface script from the local server over to the global CDN (Content Delivery Network)
• speeded up loading of contour lines new Worker(...) scripts
• on-going work on the NOBEYAMA FUGIN composite RGB support

maintenance

• client-side JavaScript: improved WebGL reliability

getting on with the NOBEYAMA FUGIN composite support

• replaced the html_encode() C function with a more robust mg_url_encode()
• added initial support for loading multiple (composite) FITS files from the NOBEYAMA FUGIN project across the cluster
• added support for multiple (composite) FITS files to the WebSocket user session C structure
• propagating WebSocket heartbeats across the cluster using HTTP messages