Publications by Edzer Pebesma
Introducing: the POLYGON FULL
Summary Why? How? Examples [view raw Rmd] Summary This post introduces the POLYGON FULL geometry, new in sf 1.0-18 which appeared on CRAN Today. Why? Polygons delineate a two-dimensional bound area. The OGC simple feature access standard defines besides the regular POLYGON and MULTIPOLYGON (a set of polygons) also the POLYGON EMPTY and MULTIPOLYGO...
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Reading Zarr files with R package stars
What is Zarr? Aggregating global precipitation time series to countries 50m natural Earth country boundaries simple aggregation CMIP6 data Reading sub-arrays or strided arrays Using the classic GDAL raster API Software versions [view raw Rmd] Summary: Zarr files are the new cloud native NetCDF, and are here to stay. This blog post will explo...
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Vector Data Cubes
Vector data cubes Where do vector data cubes come from? Representing vector data cubes in software File formats for vector data cubes array formats I/O: GIS formats long table form wide table forms Multiple (long) table forms (database normalization) [view raw Rmd] Summary: Where raster data cubes refer to data cubes with raster (x- and y-, ...
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Plotting and subsetting stars objects
Summary Plots of raster data Subsetting Conversions: raster, spacetime Easier set-up Earlier stars blogs [view raw Rmd] Summary This is the second blog on the stars project, an R-Consortium funded project for spatiotemporal tidy arrays with R. It shows how stars plots look (now), how subsetting works, and how conversion to Raster and ST (spaceti...
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Using stars for remote big Earth Observation data processing
Summary The data Server Reading data Serving /data Client I/O with the server: Example client session: metadata Query data Process: st_apply, NDVI Limitations and lessons learned Try this at home The way forward Earlier stars blogs [view raw Rmd] Summary This is the third blog on the stars project, an R-Consortium funded project for spatiote...
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Wrapping up the stars project
Summary Status Future Earlier stars blogs [view raw Rmd] Summary This is the fourth blog on the stars project, an it completes the R-Consortium funded project for spatiotemporal tidy arrays with R. It reports on the current status of the project, and current development directions. Although this project ends, with the release of stars 0.3 on CRA...
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