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bio website georepublic.info
location Osaka-shi, Japan
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visits member for 4 years, 2 months
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Working for Georepublic UG & Georepublic Japan


Nov
23
answered pgrouting with wms
Nov
21
reviewed Approve suggested edit on How to narrow raster features to single cell width?
Nov
21
answered calculate route in road network
Nov
17
comment How to create a Network Topology in a shapefile that contains only nodes(geometry points)?
You need to know how points are connected to each other, how their relation is to each other. Otherwise routing will not work.
Nov
17
comment How to create a Network Topology in a shapefile that contains only nodes(geometry points)?
Sorry, the question in the title is different than the explanation. This makes no sense. You cannot create network out of a point data, if you have no information about the relation (ways) between the points.
Nov
14
comment How to visualize pgrouting result?
I think it's really time to do the pgRouting workshop: workshop.pgrouting.org/chapters/wrapper.html I think I have even mentioned it already to some of your other question(s). PRetty much any of your questions is explained there.
Nov
7
comment pgRouting 2.0 shortest path with pgr_dijkstra returns an empty result
Did you import OSM data with osm2pgrouting or did you import SHP files?
Nov
7
comment How to calculate the optimum bus route using pgrouting?
Well, I would say that a bus stop is always on some street. So I would pre-process the data and split the road links where the bus stops are. So where you have one road link before you will have 2 road links afterwards. Just use a new serial ID attribute, then you can keep the old ID as well for both segments. When you run the topology function again using the new ID column, then all your stop points are nodes in the routing network.
Nov
6
answered How to calculate the optimum bus route using pgrouting?
Oct
31
comment pgrouting query
Yes, it is possible.
Oct
29
comment from coordinates can i find from multilinestring from database
You can take a look, but this is a very very old archived website, which uses not only old pgRouting but also old PostGIS and a lot more probably. So I would be careful.
Oct
28
answered from coordinates can i find from multilinestring from database
Oct
28
answered No route calculated when using direction=true
Oct
28
revised No route calculated when using direction=true
make it readable
Oct
24
answered Can pgr_dijkstra use a boolean column for routing?
Oct
23
answered pgRouting can't find route at intersection
Oct
17
answered problem to use openstreetmap data file with pgrouting2.0 on PostgreSql9.3
Oct
11
comment If do not want to use pgRouting then what?
I recommend you to look through the Wiki pages in Github and the source code. It will probably answer your question. I don' know exactly what you have in mind.
Oct
10
comment If do not want to use pgRouting then what?
@drizo The reason why routing algorithms are implemented in C/C++ is speed and some of them make use of the Boost library or CGAL. TSP for example was implemented using plpgsql only. But this depends on the use case.
Oct
9
comment If do not want to use pgRouting then what?
@drizo pgRouting functions are written in plpgsql, the algorithms mainly in C/C++. You can find a "Getting Started for Developers" document in the project wiki: github.com/pgRouting/pgrouting/wiki/Developer---Getting-Started