3
votes
3answers
125 views

Offline Map Service with Mapnik and Leaflet

I'm relatively new to GIS, so I hope my asking doesn't appear to be ignorant in any way. I currently work on an offline map service solution for usage in areas without internet connection. For that ...
1
vote
1answer
111 views

Mapnik + OpenStreetMap + Shapefile with Raster Images + Mod Tile + PostGIS

I am new to GIS. I have a Shapefile (.shp, .shx and .pbf). The .pbf file contains path to PNG files located on my machine only. I was able to save the Shp data to PostGis via Shape2Gis tool. Now ...
3
votes
2answers
99 views

Custom OSM, styling points

I have my own OSM file, which is created by some application which I written. You can see some of nodes in my OSM file bottom of the post. I want to fill +/-0.0001 latitude, +/-0.0001 longitude ...
1
vote
2answers
48 views

How to style ways with CartoCSS depending on a relation property (OSM)

I'm using CartoCSS together with an OSM Postgres DB (hstore on). I want to set the line color depending on the operator tag of relations (routes). How can I do that? Update Thanks to Paul Norman for ...
0
votes
1answer
124 views

Difference between 2 projections?

I have osm.xml file where projection is defined as follows: Map background-color="grey" srs="&srs900913;" minimum-version="2.0.0"> n settings.xml file projection is also set there as: <!ENTITY ...
0
votes
1answer
62 views

PostGis geometry name lookup failed for table

I have a table name erpAssets which has column name Region of type polygon. it contains entries of points also like (-79.4609576808001,43.9726680183837)). I have written query which convert these ...
5
votes
1answer
404 views

Generating Interactive Tiles using Nodejs, Mapnik, and PostGIS for Leaflet

I am looking to do something like this but where I have all the data on the same server. I've been following through the set of tutorials @ sparkgeo.com/labs/big/ and I'm having some difficulty. ...
2
votes
1answer
34 views

Only Draw Geometric Objects Above 8th Parallel North

I have many geometric objects (in both SRID:4326 - the_geom - and SRID:3857 - the_web_geom - in PostGIS extension tables of PostgreSQL), including country boundaries, for the country of Ghana and I ...
1
vote
1answer
205 views

Mapnik render Error : Could not create datasource for type 'postgis'

I try to use mapnik render for a tile server. During the initialization 'renderd -f -c /usr/local/etc/renderd.conf', the following error message is displayed : An error occurred while loading the map ...
1
vote
1answer
228 views

How to draw bus routes on OpenStreetMap with mapnik

I have successfully set up Postgres with PostGIS and MapNik to serve map tiles. The database is populated with data from OpenStreetMap project. I can see that bus routes are in the data-set, but I ...
2
votes
0answers
168 views

Styling river charts with TileMill - issue with filling a polygon made of disjoint line segments

I am trying to style inland river charts produced by the Army Corps of Engineers. I imported the vectors into Postgres, and I’m using TileMill to style the data. I am having trouble correctly filling ...
1
vote
1answer
834 views

Mapnik Initialization does not work

I create geodatabase "training" sudo su su postgres createdb -E UTF8 template_postgis2 createlang -d template_postgis2 plpgsql psql -d postgres -c "UPDATE pg_database SET datistemplate='true' WHERE ...
1
vote
1answer
279 views

Generate tiles with EPSG:4326 projection using Mapnik

I'm trying to generate tiles from a postgresql database that contain osm data in EPSG 4326. I used the scripts generate_xml.py and generate_tyles.py provided by mapnik-stylesheets. The final result is ...
0
votes
1answer
84 views

mapnik verbose?

I've got a PostGIS NHD layer thats not rendering in mapnik (using toposm code scripts) and I don't know why. I've confirmed that the table data is there, positioned correctly and has the proper ...
1
vote
0answers
62 views

New geographical point won't show on map

I did recently ask a question about how to add a new point to a PostGIS table. Now when I've got the new point in the table it should be visible on my map, but it isn't. I'm using Mapnik together ...
1
vote
1answer
344 views

Missing function ST_Extent in PostGIS db

I hope you can help as I am tearing my hair out here. Do any of you elite geo peeps have any idea why some specific functions could be missing from my PostGIS install? I am trying to use Mapnik with ...
4
votes
1answer
247 views

How to reproduce Stamen's Toner PostGIS setup?

I'm trying to render Stamen's toner map with Landez which uses Mapnik. The style I'm rendering is from Stamen's toner project. I'm using the one which only renders labels (no lines). I imported the ...
0
votes
1answer
842 views

socket connect failed for: /tmp/osm-renderd

I have installed Mapnik and have a functioning PostGIS database (I can access data through QGIS with no problems). When I try to run render_list to generate tiles it fails with socket connect failed ...
3
votes
2answers
6k views

Click a marker icon to open a pop-up, using OpenLayers

Background Looking to create a pop-up that performs an Ajax request when the user clicks a marker on an OpenLayers map. The markers, however, have different icons. The following is working code that ...
3
votes
1answer
393 views

making choropleth maps using PostGIS Windows

i read an article on chicago tribune blog about making maps, it consist on "making choropleth maps using PostGIS, TileMill, Mapnik and Google Maps" on Mac environnement, my question is how we can ...
1
vote
2answers
138 views

How to prevent base layers from being edited?

I've made a local tile server (mapnik + postgis + tilecache). Now i need to make use of some editing tool so that only newly created layer can be edited: users of this tool shouldn't have rights to ...
1
vote
1answer
483 views

Enhance performance of a join query for mapnik using postgis

I use mapnik to render map with datasources from a postgis database. One query is a join on two table, one with a geometry (a polygon) and the other one with some fields I want to use for rendering. ...
22
votes
5answers
8k views

Optimizing osm2pgsql imports for OSM data

I'm currently building an instance on EC2 on which to import the entire Planet.osm snapshot of the whole Earth's worth of data for some projects we're working on. I've spun up a large Ubuntu x64 ...