JS9 preload

This demo originally used specific FITS sample data that this site no longer ships, so it displays the bundled example.fits.gz instead. Restore the original data/ files to see it as intended.

JS9 Demo: preloading images into JS9

Load two images with one JS9.Preload() call:

Load images into alternating displays by calling JS9.Preload() repeatedly in a loop:

JS9 Demos:

web page configuration:

the basics
setting the size of the JS9 display
menubar styles
web page control
preloading images into JS9

multiple displays:

multiple instances of JS9
control multiple displays with one menu
creating a JS9 instance dynamically
syncing images in multiple displays

plugins:

adding plugins to JS9
the imexam plugin
pan and zoom
overlaying catalogs
dynamic selection of displays

colors:

image blending
RGB composite images
creating new colormaps
masks and opacity

data analysis:

remote data analysis
running tasks when a region changes
image refresh rate for data acquisition

FITS support:

displaying different FITS datatypes
support for large FITS files

not often needed:

using the all-in-one files