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How to calculate multiple distances between set of points and vector grid in...
My set contains the following input data: A set of points and a hexagonal (vector) grid. For each cell in the grid, I want to calculate the driving-distance to each point. I thought this would be a...
View ArticleReplicate routing behavior
I’ve been dealing with problem for a while now and I want to know if I’m in the right track, basically I want to replicate this site functionality and so far I think it can be done with pgrouting...
View ArticlepgRouting adding point or line barriers
In pgRouting can we add barriers (point, line, polygon) to avoid using a road partially not entirely. For example we have point features in another table. Or line features which is sub-part of a road...
View ArticleMix Public Transportation data with pgRouting
I’m looking to mix 3rd party data, such as public transportation (routes, schedule is optional), with geographic data imported from shapefile/osm. With this I plan to give users an option to select a...
View ArticleGiven a lat/long how to find the nearest node in a route calculated by...
I’m creating a table route_<route_id> for the route given by pgr_dijkstra, like this. In my application, I have a websocket with a mobile client that it’s sending it’s current position every x...
View Articlepgrouting pointAtoB function
Has anyone successfully implemented pgr_fromAtoB function? Sometimes I get 0 results from points in the same line string, sometimes I do get results, How can accuracy be improved?, or maybe do I need...
View Article1-center and k-center problem / maxmin facility problem in Post
is there anybody who has already solved the 1- and k-center problem within PostGIS (optionally with distance metric obtained by pgrouting)? References: 1-center problem in Wikipedia and graph center in...
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