AWAITING DATA LINK
drop a FITS cube or select a sample feed
ACQUIRING
? KEYS
←/→ channel ⇧←/→ ×10 SPACE play V mode G guide
R reset view dbl-click fit
SLICE IS QUANTITATIVE — native-resolution float values streamed from the file. Use it for anything you'd write down.
VOLUME IS QUALITATIVE — spatially/spectrally binned, half-float quantized, and shaped by your transfer function. Never estimate a flux or a size from it; it exists to tell you where to point the slice view (and to make the screenshot for your talk).
Both modes share one normalization and stretch — bright agrees with bright; only slice mode says how bright.
Tune WINDOW + STRETCH once in slice mode on a strong channel (ASINH for faint extended emission · LOG for high dynamic range). Volume mode inherits the same scaling — then shape only the TRANSFER FUNCTION for the volume look.
←/→ channel · ⇧←/→ ×10 · SPACE play · V mode · G guide · R reset view · double-click fit · wheel zoom · drag pan/orbit · ESC close