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Results tagged with pgrouting
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user 12416
pgRouting extends the PostGIS / PostgreSQL geospatial database to provide geospatial routing functionality.
4
votes
3
answers
1k
views
Why mobile routing is so fast?
Why my mobile GPS routing calculates routes almost instantly and using pgRouting in my robust PC is so time costly ? … In my PC ( 8G RAM - Core i5 ) I have Postgre + PostGIS + pgRouting
Table OSM Planet "planet_osm_line" with previous work:
alter table planet_osm_line add column source integer;
alter table planet_osm_line …
- 2,190
5
votes
1
answer
2k
views
How can I change start and end point of a linestring?
I have a LINESTRING from a pgRouting query. … My Kung-pgRouting-fu is like this tutorial http://workshop.pgrouting.org/chapters/wrapper.html#return-route-with-network-geometry (function pgr_fromAtoB()) and is working fine. …
- 2,190
1
vote
0
answers
92
views
Create a single line from a resultset of line segments
I followed this tutorial: http://anitagraser.com/2013/07/06/pgrouting-2-0-for-windows-quick-guide/
I found roads in a route from point A to point B. …
- 2,190
4
votes
1
answer
847
views
How can I move along a line (or path)?
Given a line (street, railroad, river...) I want to simulate a moviment inside this line.
Example:
See this picture:
Say I'm in "Nagqu" and want to move to "Kunlunqial".
In a time (t=0) I'm in Nagqu. …
- 2,190
2
votes
0
answers
93
views
Some PostGIS functions explanations [closed]
I'm trying to optimize a route SQL function and playing with some ST_* functions I found around.
But even found a good one, I don't want to simply copy/paste what someone wrote. I want to understand …
- 2,190