| Item | Who | Notes |
|---|
| Python in Astronomy | | - Many people interested in image display.
- Unconference session discussed all the various tools available.
- Disentangling which tools have which features.
- Christopher Waters worked on adding some extra features to the AstroWidgets package using Ginga and IPyWidgets.
- “Give me a window, make it this big, display an image with it”.
- Works only in Jupyter notebooks (lab), but not native web.
- AstroWidgets does mosaicking with WCS.
- For the things which exist, AstroWidgets is easy to use.
- For the things which don't exist, it is easy to add them.
- “As easy as anything (Chris) has ever used”.
- Lots of flexibility.
- Spreadsheet of uses cases & features.
- Peter Williams / WorldWideTelescope integrated HSC data with HSC.
- Used a tiling scheme named TOAST; and a tool named toasty(?)
- Took about 15 minutes to process a tract, but could likely be made faster with effort.
- Addresses the whole sky visualization use case.
- Peter Williams was worried about JS9 having only one developer, but offered to serve as a point of contact (with both him & Eric Mandel) being at the CfA.
- Nate Lust : demo given of Glue brushing & linking was really impressive.
- Not clear how much Glue adds over Bokeh.
- Lots of support for Ginga at the meeting; that may be a selection effect based on the participants, though.
|
| JS9 | | - Simon's notes.
- “Eric Mandel doesn't think it's dead”.
- Hard to do mask overlays, due to fundamental differences between how DS9 & JS9 handle multiple images in the same app.
- Not clear what the multi-client environment is like — one monolithic server with many clients, or each client spawning its own server?
- But note that there may be constraints on this because the browser and the python interpreter would need to have access to the same environment.
- As far as we understand at the moment, matching the sort of mask overlay that we currently have in Firefly/DS9 isn't possible.
- But that may just be a matter of not fully understanding JS9's capabilities.
- The pyjs9 client library wraps a RESTful API exposed by the server.
|
| Next week | | |
| Merlin's responsiveness comments | | - Merlin assumed that everything that needed responsiveness would be done in DS9, so there was no point requesting it in Firefly.
|