JS9 Demo: running tasks in response to region changes
FITS representation files: FITS images and binary tables:
Display a Region Display all Regions Modify a Region
Energy Spectrum Counts in Regions
JS9 can perform local and remote tasks in response to region changes:
  • choose a task by clicking one of the analysis buttons above
    • the region tasks are local (browser-based) tasks
    • spectrum, counts are remote tasks (requiring the back-end helper to be running)
  • display an image by clicking on one of the data files
  • create a region using the JS9 Region menu
  • as you move/resize the region, the task will run on that region
  • you can suspend task execution by unselecting xeqOnChange in the JS9 Region menu
See the page source for implementation details.

JS9 Demos:

web page configuration: multiple displays: plugins: colors: data analysis: FITS support: not often needed: