A summary of work I've done at the Space Telescope Institute.

More Fixing

I spent the day fixing problems in the fits extension code that Eric identified. The turned out to be trickier than I originally supposed, mostly because of interdependencies in the various parts of the fits io code. Last problem is figuring out what the "standard" test harness is and getting my tests to work with that.

Posted on 29 Jul 2014

Looking and Fixing

In the morning I continued to examine the drizzle code, mostly focussing on the mapping code. In the afternoon, I maded some changes to the fits extension code I had written, after Eric's review of it.

Posted on 28 Jul 2014

Time Mis-spent

I spent the day setting up a test case and looking for an error in the stsci_sphere code. Michael found the error before I did, it was a problem with computing the area of not simply connected polygons. I then returned to trying to understand the drizzle code.

Posted on 25 Jul 2014


I spent the day trying to understand the cdrizzle code.

Posted on 24 Jul 2014


I created releas 1.0.2 of stsci_sphere and returned to looking at (but not yet doing anything about) the drizzle source code.

Posted on 23 Jul 2014

Not Yet Done

I spent the day making and testing the release of stsci_sphere

Posted on 22 Jul 2014

Towards the Finish Line

I found the remaining bugs in the stsci_sphere package and tagged it as release 1.0.1.  I studied the drizzlepac code some more. The function that seems to be the nub of the issue is map_value in cdrizzlemap.c

Posted on 21 Jul 2014

Two Projects

In the morning I studied the drizzlepac code. In the afternoon I got the stsci_sphere package ready for its public release.

Posted on 18 Jul 2014

This and That

With Mike's help I resolved the last issue with the sphere package. I started writing down my ideas on the WCS interface and checked out the drizzlepac code, with an eye to refactoring it.

Posted on 16 Jul 2014

Study Time

I spent the day reviewing the WCS code with an eye to completing the region handling code.

Posted on 15 Jul 2014