PolygonDistances Alternatives

PolygonDistances reviews and mentions

• Which industry has/needs the most challenging sql queries?
  2 projects | /r/SQL | 17 Apr 2023

  The fastest thing I've found so far is to rasterize the data, project the points into 3D, create a KDTree, compute the straight line distances, and convert those to spherical distances, all using numpy with python (not SQL), but I wonder if I'm missing something. My work so far: https://github.com/barrycarter/PolygonDistances/

• What Are You Working On? April 03, 2023
  1 project | /r/math | 3 Apr 2023

  Thought it would be fun to do that for other countries that have territories spread across the globe like the UK and France. Or things like Europe or the Commomwealth Realms or something. Some code so far: https://github.com/barrycarter/PolygonDistances/

• Any way to speed up np.vectorize?
  1 project | /r/CodingHelp | 27 Mar 2023

  https://stackoverflow.com/questions/54133042/difference-between-numpys-vectorize-and-its-automatic-vectorization may help. Instead of speeding up np.vectorize, don't use it at all. Instead, do parallelizable math on ndarrays, and Python/numpy will automatically do the math in parallel. As an example run this fast code (also at https://github.com/barrycarter/PolygonDistances as sample2.py):

• Anybody willing to tutor me on GIS, especially ArcGis/QGIS.. got a lil background. Help
  1 project | /r/gis | 22 Mar 2023

  If you'd be interested in learning about GIS with Python with someone who is learning it themselves, ping me: https://github.com/barrycarter/PolygonDistances

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