Are there any good implementations of spatial indexes in Haskell such as R-tree, kd-tree,开发者_如何学Python etc...The only implementations I\'m aware of are the spacepart package, which seems to be i
I\'ve created a script to create a spatial index of all rasters and it worked fine when run in a single directory but when I tried to ammend it to run on subdirectories as part of an os.walk it starte
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I have +10k points (latitude, longitude) and I\'m building an app that shows you the k nearest points to a user\'s location.
I am new to the whole \'spatial index\' thing, but it seems to be the best solution for filtering based on latitude/longitude. So I added a column to my table:
I have 开发者_运维知识库a table with 3 columns, PrimaryKey(int), latitude(decimal 9,6) and longitude(decimal 9,6).
I have a data set stored in database table that includes a position in 3-space.I need to retrieve the k nearest neighbors in an efficient manner.My datastore does not include native spacial indexes fo
I have an old database named locations with a table inside named locations. This table has 7 variables: id (int, index), approved(int), city(text), country(text), heading(double), lat(double), lng(do
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While working on the simulation of particle interactions, I stumbled across grid indexing in Morton-order (Z-order)(Wikipedia link) which is regarded to provide an efficient nearest neighbor cell sear
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