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Results tagged with point-in-polygon
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user 664
A common GIS operation. Used to determine whether a point lies within a polygon's bounds.
16
votes
Accepted
Fastest way to spatially join a point CSV with a polygon Shapefile
If "fastest" includes the amount of your time that is spent, the solution will depend on what software you are comfortable with and can use expeditiously. The following remarks consequently focus on …
- 70.2k
12
votes
Point in polygon algorithm for multiple polygons
As with almost all such questions, the optimal approach depends on the "use cases" and how the features are represented. The use cases are typically distinguished by (a) whether there are many or few …
- 70.2k
3
votes
Calculation of average point distances from one another within a polygon grid
Here is an R solution, intended to function as pseudocode for implementation on any appropriate platform (C++, Python, etc) and to be a working prototype. It begins with a function to compute the mea …
- 70.2k
5
votes
Generating points that lie inside polygon in QGIS
I would like to offer a solution that requires very little in terms of GIS analysis. In particular, it does not require triangulating any polygons.
The following algorithm, given in pseudocode, refe …
- 70.2k