geodesk

3 ms·

1.
by geodesk 4y ago
The most apparent difference is storage consumption: A GeoDesk GOL file for a recent planet comes in at 80 GB -- as a pgSQL DB, it would require nearly 1 TB. GeoDesk spatial queries (especially intersects) leave pgSQL in the dust, even on l
2.
by geodesk 4y ago
This is essentially Spherical Mercator (EPSG:3857), except that instead of meters at the equator, planar distances are scaled so that the Earth's circumference equals 2^32 units (the maximum range of a 32-bit integer). This simplifies
3.
by geodesk 4y ago
The underlying data of MapBox is 99.99% OSM (with some other datasets used for things like country borders). They do have a very nice vector-map viewer (previous versions were open-source, the newer releases have a more restrictive license
4.
by geodesk 4y ago
What specific data were you looking for? When did you last check out OSM? (There's been a huge push on data completeness in recent years that is now bearing fruit) Combining datasets: You'll have to check the terms of the license
5.
by geodesk 4y ago
OpenStreetMap is an excellent alternative. At this point, OSM data (which is freely available under the Open Database License) is equal (and often superior) to commercial offerings throughout much of the world. There's a great amount o
6.
by geodesk 4y ago
Indexing in GeoDesk GOL files is predominantly spatial (a quadtree-like structure combined with r-trees), with probabilistic indexing for the most frequent keys (`highway`, `building`, `amenity`, etc.). This means queries with a spatial dim
7.
by geodesk 4y ago
- Currently, GeoDesk is only available for Java (and other JVM languages). We're considering a future C++ implementation of the database engine (with possible Python bindings) - We will be adding the capability to incrementally update