| AstroWidgets + Ginga Demo | | - Things Chris learned at Python in Astronomy, plus a day's worth of experimenting.
- Have not yet got display_ginga working.
- Chris has written a quick (~1 hour effort) GUI for interacting with the Ginga display in a notebook; looks pretty slick!
- Can display mask planes, by adopting code from (but not integrating with) display_ginga.
- Add regions by clicking on the image; get the results through Python callbacks.
- Understands FITS headers; can access them.
- Which can actually be populated by metadata provided by the code; it doesn't have to be header.
- Not clear what the semantics of this should be.
- One could imagine extending afwDisplay with some generic notion of image metadata.
- There are handy keybindings.
- AstroWidgets acts largely as a wrapper around Ginga.
- Chris is working on a way of panning through multiple frames.
- Continuing development of AstroWidgets; they claim to now support all of the DS9 region types.
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| HscMap demo | | - Asked for feedback from Subaru/HSC to see if they have any inputs.
- They sent some documentation videos!
- But no real user feedback.
- The data is postprocessed before being fed to HscMap.
- Which helps explain the speed.
- “Full sky almost to pixel level”.
- Lupton-sanctioned colours!
- Can change colormap of pre-computed images, not on the original data.
- “The algorithm is applied post-stretch”.
- Interfaces with a database for catalog queries.
- Can add your own images and CSV format catalogs.
- Would be really useful to simply visualize the whole LSST sky.
- Can be incorporated into JupyterLab.
- But it's not clear how deep this integration goes.
- Suspect there is no mask overlay support.
- Chief selling-points are speed and colours, together with ability to overplot objects from a database.
- We do not know what the backing format is;
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| IDWG Talk at the PCW | | - Run through of 10 minute talk in Wednesday mornings QA session at the PCW.
- Talk still a WIP; final slides will be distributed on Tuesday.
- Slide 4: are Nublado and Web different environments?
- We should acknowledge that this is not a precise orthogonalization of the problem space.
- In general, tools that work in Nublado can also be used on lsst-dev & laptop, as those environments are less restrictive.
- Modulo some tools might implicitly assume internet access and/or availability of data for key functionality.
- Slide 6: we don't think WCS is actually slow for Firefly.
- Note the Tony Johnson tool requires “engineering heavy lifting”.
- Favorite use cases:
- Being able to see different mask planes, be clear which plane refers to what.
- Presentation is 10 minutes + generous question time; not time to run a demo.
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| Next Steps | | - Would be nice if there was a basic draft available by Wednesday.
- Two approaches:
- Simply throw all the notes into the document, sort it out later.
- Try and come up with a brief set of fleshed out recommendations: where do we spend our few hundred $k? Off the top of our head:
- Have an lsst-dev equivalent running for project employees.
- Simon comments this might be less important given WebDAV; should add some words to the document about this.
- Feature enhancements to Firefly (which?)
- Make sure that at least one of JS9 / AstroWidgets + Ginga are integrated with Nublado.
- Set up a version of Tony Johnson's image viewer for use by DM folks during commissioning.
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