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I have a small vector layer of about 80,000 grid squares and not quite 50 attribute table columns. Function timing with R 4.2.1, dplyr 1.0.9, readr 2.1.2, and terra 1.5-34 results in
```R
as_tibble(…
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@rouault thank you for opening https://github.com/paleolimbot/geoarrow/issues/5 - I did a rewrite of my Arrow generation and am just getting to checking my files against those from the GDAL driver! Mo…
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I noticed that WKB geometry with xyz, xym or xyzm coordinate dimension use the 30th and 31th most-significant bits of the int32 flag at offset 1 of the WKB instead of the 2D_code+1000, 2D_code+2000, 2…
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```
>>> import pyarrow.parquet as pq
>>> pq.read_table('inst/example_parquet/point-default.parquet')
Traceback (most recent call last):
File "", line 1, in
File "/home/even/arrow/cpp/build/m…
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There are a lot of options for how we approach coordinate reference systems.
* GeoJSON only allows 4326 data. They started with more options, but then narrowed it down.
* Simple Features for SQL d…
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In Python there is support for extension types that consists of a registration step that defines functions to handle metadata serialization and deserialization. In R, any extension name or metadata at…
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I think the standard should define polygon orientation.
### 1. Spherical edges case
With spherical edges on sphere, there is an ambiguity in polygon definition, if the system allows polygons large…
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### Background
The MVT module contains a function, [`featuresToBinary`](https://github.com/visgl/loaders.gl/blob/4378e975584cc8e99aa9f9a871088dd0c304d34e/modules/mvt/src/lib/binary-vector-tile/feat…
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@mdsumner: I've spent a bit of time with wk in the past week. The segment vector class is definitely useful for some specific areas of geometry, but I'm hesitant to add *another* vector class to core …
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Well-known binary (WKB) is a binary geometry encoding. WKB encodes only geometries and doesn't store attributes. It's used in databases such as PostGIS and as the internal storage format of Shapefiles…