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#DGGS

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Joana Simoes<p>"Distorted maps are like stretched book shelves" <a href="https://noc.social/tags/dggs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dggs</span></a> <a href="https://noc.social/tags/h3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>h3</span></a> <a href="https://noc.social/tags/maps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maps</span></a></p>
Joana Simoes<p>Tutorial about <a href="https://noc.social/tags/dggs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dggs</span></a>, discrete global systems, a well organised "library", addressing fundamental issues from <a href="https://noc.social/tags/gis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>gis</span></a>(: João from geoinsight at <a href="https://noc.social/tags/codesprint25" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>codesprint25</span></a> <a href="https://noc.social/tags/mentorstream" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mentorstream</span></a></p>
Luís de Sousa<p>In today's <a href="https://mastodon.social/tags/GeoMob" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeoMob</span></a> in Lisbon my introduction to Discrete Global Grid Systems was elected as best presentation.</p><p>I am grateful to the organisers and the participants. But this wouldnt have happened without the work from those that for over thirty years have been pushing <a href="https://mastodon.social/tags/DGGS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGGS</span></a> ever closer to the end user. I stand on the shoulders of giants.</p><p>The prize was a fine copy of this historical map, "Portugal laying down", in which West is up.</p><p><span class="h-card" translate="no"><a href="https://mapstodon.space/@geomob" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>geomob</span></a></span></p>
Joana Simoes<p><span class="h-card"><a href="https://mapstodon.space/@geomob" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>geomob</span></a></span> the next speaker laid out the fascinating story of Discrete Global Grid Systems, which can revolutionise the way we represent and combine data in the surface of the world <a href="https://noc.social/tags/dggs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dggs</span></a> <a href="https://noc.social/tags/standatds" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>standatds</span></a> <a href="https://noc.social/tags/datacube" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>datacube</span></a> <a href="https://noc.social/tags/h3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>h3</span></a> <a href="https://noc.social/tags/geomoblx" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geomoblx</span></a></p>
Alexander Kmoch<p>Justus made a great intro on using <a href="https://fosstodon.org/tags/DGGS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGGS</span></a> through <a href="https://fosstodon.org/tags/xarray" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>xarray</span></a> <a href="https://fosstodon.org/tags/xdggs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>xdggs</span></a> at the <a href="https://fosstodon.org/tags/Pangeo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pangeo</span></a> showcase talk. Xdggs is now in a stage where you can use it fairly robustly with <a href="https://fosstodon.org/tags/HEALPIX" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HEALPIX</span></a> and <a href="https://fosstodon.org/tags/H3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>H3</span></a>. Other integrations like for <a href="https://fosstodon.org/tags/DGGRID" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGGRID</span></a> are developed as separate plugins.</p><p><a href="https://youtube.com/watch?v=bAMGFKsxsjs&amp;si=hnfpk04VMn-rggEV" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">youtube.com/watch?v=bAMGFKsxsj</span><span class="invisible">s&amp;si=hnfpk04VMn-rggEV</span></a></p>
Alexander Kmoch<p>Great new paper in <a href="https://fosstodon.org/tags/BigEarthData" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BigEarthData</span></a> on <a href="https://fosstodon.org/tags/DGGS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGGS</span></a> practical application on <a href="https://fosstodon.org/tags/landuse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>landuse</span></a> mapping at <a href="https://fosstodon.org/tags/ManaakiWhenua" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ManaakiWhenua</span></a> <a href="https://fosstodon.org/tags/LandcareResearch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LandcareResearch</span></a> New Zealand. While they used <a href="https://fosstodon.org/tags/H3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>H3</span></a> due to available tooling they described the generalisable methodology really well. <br><a href="https://www.tandfonline.com/doi/full/10.1080/20964471.2024.2429847" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">tandfonline.com/doi/full/10.10</span><span class="invisible">80/20964471.2024.2429847</span></a> <a href="https://fosstodon.org/tags/geospatial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geospatial</span></a> <a href="https://fosstodon.org/tags/gis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>gis</span></a></p>
Alexander Kmoch<p>I did a thing - jumping the bandwagon and kicking off an <a href="https://fosstodon.org/tags/awesome" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>awesome</span></a> collection for <a href="https://fosstodon.org/tags/DGGS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGGS</span></a> <a href="https://fosstodon.org/tags/grids" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>grids</span></a> <a href="https://fosstodon.org/tags/geospatial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geospatial</span></a> <a href="https://github.com/LandscapeGeoinformatics/awesome-discrete-global-grid-systems" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/LandscapeGeoinforma</span><span class="invisible">tics/awesome-discrete-global-grid-systems</span></a> <a href="https://fosstodon.org/tags/gis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>gis</span></a> <a href="https://fosstodon.org/tags/ocg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ocg</span></a> <a href="https://fosstodon.org/tags/dggrid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dggrid</span></a> <a href="https://fosstodon.org/tags/healpix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>healpix</span></a> <a href="https://fosstodon.org/tags/isea" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>isea</span></a> <a href="https://fosstodon.org/tags/hex" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hex</span></a></p>
💧🌏 Greg Cocks<p>Advancing Digital Earth Modeling - Hexagonal Multi-Structural Elements In Icosahedral DGGS For Enhanced Geospatial Data Processing<br>--<br><a href="https://doi.org/10.1016/j.envsoft.2023.105922" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">doi.org/10.1016/j.envsoft.2023</span><span class="invisible">.105922</span></a> &lt;-- shared paper<br>--<br><a href="https://en.wikipedia.org/wiki/Discrete_global_grid" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/Discrete</span><span class="invisible">_global_grid</span></a> &lt;-- DGD wiki page<br>--<br>[the math is way over my head, hence the wiki page leak, but a good read nonetheless]<br>“HIGHLIGHTS:<br> • Hexagonal multi-structural elements enhance Earth's surface modeling precision.<br> • Integration of indexing and conversion rules improves geospatial data computation.<br> • DGGRID implementation shows increased precision in raster and vector data modeling.<br> • Addresses limitations in existing software for Earth observation data.<br> • Pioneering approach expands geospatial data processing applications…"<br><a href="https://techhub.social/tags/GIS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GIS</span></a> <a href="https://techhub.social/tags/spatial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>spatial</span></a> <a href="https://techhub.social/tags/mapping" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mapping</span></a> <a href="https://techhub.social/tags/DiscreteGlobalGrid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DiscreteGlobalGrid</span></a> <a href="https://techhub.social/tags/DGG" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGG</span></a> <a href="https://techhub.social/tags/DGGS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGGS</span></a> <a href="https://techhub.social/tags/indexing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>indexing</span></a> <a href="https://techhub.social/tags/conversion" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>conversion</span></a> <a href="https://techhub.social/tags/rules" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rules</span></a> <a href="https://techhub.social/tags/computation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>computation</span></a> <a href="https://techhub.social/tags/Hexagonal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Hexagonal</span></a> <a href="https://techhub.social/tags/DGGRID" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGGRID</span></a> <a href="https://techhub.social/tags/raster" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>raster</span></a> <a href="https://techhub.social/tags/vector" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>vector</span></a> <a href="https://techhub.social/tags/data" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>data</span></a> <a href="https://techhub.social/tags/model" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>model</span></a> <a href="https://techhub.social/tags/modeling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>modeling</span></a> <a href="https://techhub.social/tags/earthobservation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earthobservation</span></a> <a href="https://techhub.social/tags/remotesensing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>remotesensing</span></a> <a href="https://techhub.social/tags/grid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>grid</span></a> <a href="https://techhub.social/tags/vertices" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>vertices</span></a> <a href="https://techhub.social/tags/edges" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>edges</span></a> <a href="https://techhub.social/tags/icosahedral" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>icosahedral</span></a> <a href="https://techhub.social/tags/projections" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>projections</span></a> <a href="https://techhub.social/tags/coordinates" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>coordinates</span></a> <a href="https://techhub.social/tags/representation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>representation</span></a></p>
Luís de Sousa<p>Major drop in productivity on the second day of code sprint at <a href="https://mastodon.social/tags/FOSS4G2023" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FOSS4G2023</span></a>. Seven days of constant stimuli taking their tool.</p><p>This morning I been working on a <a href="https://mastodon.social/tags/pygeoapi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pygeoapi</span></a> manuscript and a bit on <a href="https://mastodon.social/tags/DGGS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGGS</span></a>. See if I can get to <a href="https://mastodon.social/tags/BBox" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BBox</span></a> and <a href="https://mastodon.social/tags/SPARQL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SPARQL</span></a> Unicorn in the afternoon.</p>
Luís de Sousa<p>Release v0.2.6 of <a href="https://mastodon.social/tags/dggrid4py" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>dggrid4py</span></a> adds functionality to split cells along the 180º meridian. This allows purely Cartesian programmes like <a href="https://mastodon.social/tags/QGis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>QGis</span></a> to portray a <a href="https://mastodon.social/tags/DGGS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGGS</span></a>.</p><p>Still a brute force approach, needs an heuristic to limit down the set of cells tested.</p><p><a href="https://github.com/allixender/dggrid4py/releases/tag/v0.2.6" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/allixender/dggrid4p</span><span class="invisible">y/releases/tag/v0.2.6</span></a></p>
Luís de Sousa<p>These days I have been addressing cases like this. A <a href="https://mastodon.social/tags/DGGS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DGGS</span></a> cell that crosses the 180° meridian. None of the <a href="https://mastodon.social/tags/FOSS4G" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FOSS4G</span></a> software I use is able to interpret it correctly. Long way to go for modern <a href="https://mastodon.social/tags/GIS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GIS</span></a>.</p>