GIS coaching for territorial management.
Usually, all layers of geographic data have the description of the coordinate system. Unfortunately, this is not always the case. Generally, the problem increases by not being able to contact the producer of the data. Problem…
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With this final article, we get to the end of this series. After setting up the Postgres / Postgis database, we configured Geoserver to assist the results of pgrouting into a WMS lux. All that’s left…
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We have discussed in previous articles how to set up the network data for pgrouting and how to develop a wrapper to search the route between two points. Here we will discuss how to set up…
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A wrapper is a PostgreSQL function that contains pgRouting and PostGIS features easier to use than pgRouting and PostGIS functions straightaway. The pgRouting native functions have been designed to be generic so they can be used…
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pgRouting includes a function called pgr_drivingDistance , that, together with three others functions , pgr_withPointsDD , pgr_alphaShape and pgr_pointsAsPolygon , can be used to establish which paths have a certain cost versus a starting or arrival…
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The pgrouting extension offers various algorithms to find the best route: Dijkstra, A *, Ksp, Trsp, … In this article we will discuss in detail the use of a * (A-star). We will continue to use…
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