<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body>
<p>Hello all</p>
<p align="justify">The joint OGC/OSGeo/ASF code sprint will start in
2 weeks, with a pre-event webinar in 2 days (Wednesday this week).
This event is free for anyone to participate, and thanks to
Ordnance Survey sponsor a little bit of funding will be available
for participants who apply and who are selected as eligible (more
details to be provided by OGC later). The schedule is below:</p>
<blockquote>
<p><a class="moz-txt-link-freetext" href="https://github.com/opengeospatial/developer-events/wiki/2022-Joint-OGC-%E2%80%93-OSGeo-%E2%80%93-ASF-Code-Sprint">https://github.com/opengeospatial/developer-events/wiki/2022-Joint-OGC-%E2%80%93-OSGeo-%E2%80%93-ASF-Code-Sprint</a></p>
</blockquote>
<p>Any development activity related to OGC standards can be
proposed. Below are 2 proposals that may be relevant to PROJ:</p>
<p><br>
</p>
<h3>Proposal: GGXF implementation</h3>
<p align="justify">The Gridded Geodetic data eXchange Format (GGXF)
is an OGC standardization effort for distributing datum shift
grids, geoid models, and more geodetic gridded data. It has the
same goal than the GeoTIFF files that PROJ currently uses for this
purpose. Chris Crook, who worked on the PROJ GeoTIFF format, is
also a very active participant to the GGXF effort, together with
Roger Lott, the main editor of ISO 19111 (referencing by
coordinates) and ISO 19162 (WKT 2) standards. Some other
participants in the working group are from ESRI or from
International Association of Geodesy (IAG). The GGXF standard uses
the netCDF-4 format. A draft of the GGXF standard and a prototype
in Python are available. The code sprint would be an opportunity
for volunteers for starting an implementation in PROJ, with Chris,
Roger and other peoples present for answering questions and
collecting feedback. For more details, see:</p>
<blockquote>
<p><a class="moz-txt-link-freetext" href="https://github.com/opengeospatial/developer-events/tree/master/2022/Joint-OGC-OSGeo-ASF-Code-Sprint%202022/ideas/GGXF">https://github.com/opengeospatial/developer-events/tree/master/2022/Joint-OGC-OSGeo-ASF-Code-Sprint%202022/ideas/GGXF</a></p>
</blockquote>
<p><br>
</p>
<h3>Proposal: GIGS implementation</h3>
<p align="justify">The Geospatial Integrity of Geoscience Software
(GIGS) is an IOGP effort for providing tests for coordinate
operations. IOGP is the organization maintaining the widely-used
EPSG geodetic database. GIGS tests are available as dataset (CSV
files), web service and executable JUnit tests. The JUnit tests
can be executed on any GeoAPI 3.0 implementation, including PROJ
through the PROJ-JNI binding. The Java language is used for GIGS
tests because it is currently the only language providing
implementation-neutral API for referencing services (Python could
be another candidate but the GeoAPI interfaces in Python are still
in development). The code sprint would be an opportunity for
volunteers to help upgrading to GIGS 2 and complete the tests (in
Java), tests them on PROJ, and continue development of Python
interfaces.<br>
</p>
<blockquote>
<p><a class="moz-txt-link-freetext" href="https://github.com/opengeospatial/developer-events/tree/master/2022/Joint-OGC-OSGeo-ASF-Code-Sprint%202022/ideas/GIGS">https://github.com/opengeospatial/developer-events/tree/master/2022/Joint-OGC-OSGeo-ASF-Code-Sprint%202022/ideas/GIGS</a></p>
</blockquote>
<p><br>
</p>
<h3>Mentoring</h3>
<p align="justify">In addition to volunteers for above proposals,
the PROJ project can also propose tutorials for beginners. On the
mentor stream, developers will have the opportunity to give their
first steps using the standards and projects, and hopefully this
will build an engagement which will continue past the code sprint.
More information are there:</p>
<blockquote>
<p><a class="moz-txt-link-freetext" href="https://dev.to/doublebyte/2nd-open-software-and-open-standards-code-sprint-call-for-mentors-1g0o">https://dev.to/doublebyte/2nd-open-software-and-open-standards-code-sprint-call-for-mentors-1g0o</a></p>
</blockquote>
<p><br>
</p>
<p>Home page and registration: <a class="moz-txt-link-freetext" href="https://developer.ogc.org/sprints/15/">https://developer.ogc.org/sprints/15/</a></p>
<p> Martin</p>
<p><br>
</p>
</body>
</html>