Questions tagged [mapnik]
Mapnik is an open source mapping toolkit, written in C++ and can be scripted using binding languages such as JavaScript (Node.js), Python, Ruby, and Java. Useful for both Desktop- and Server-based map rendering. It is used by Tilemill, OpenStreetMap, Mapbox, CartoDB, Stamen, MapQuest and Kosmtik.
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Installation problem mapnik [duplicate]
Has anyone managed to solve the problem described here? installing MAPNIK problems
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Eliminate black border around nodata/alpha of GeoTIFF converted by rasterio
I have an image (png) that I want to place on a map:
I use rasterio to georeference the picture:
import rasterio as rio
import warnings
from pathlib import Path
from typing import Tuple
from rasterio....
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9
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Mapnik PointSymbolizer - dynamic svg path from column
I want to visualize a shapefile with points, where each point should be rendered with a different symbol. The paths to symbols are provided in a column in the shapefile.
This is my current stylesheet....
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Cannot properly link mapnik with CMake
I installed mapnik 4.0.0.
Then I tried to compile an example:
#include <mapnik/map.hpp>
#include <mapnik/load_map.hpp>
#include <mapnik/agg_renderer.hpp>
#include <mapnik/image....
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Map layer 'ajt' fails to load
After following the tutorial from Switch2OSM I ran into the following error after running this command: renderd -f -c /usr/local/etc/renderd.conf and launching the server through the web browser using ...
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Mapnik with Postrgresql read replicas
This is more of a general question. We are running a GCP Cloud SQL Postgresql instance with read replicas. To distribute load, we would like to use the read replicas. We are running a nodejs service ...
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What is Mapnik and how is it different with GDAL?
I am a software developer and relatively new to the GIS world. I normally code in Java and Javascript. I've been using GDAL for a while to translate vector and raster images for a client's project. ...
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mapnik-renderd error: FATAL: role "_renderd" does not exist
mapnik-renderd error: FATAL: role "_renderd" does not exist
I've been following this tutorial to making an osm tile server on Ubuntu 20.04 (WSL), but after restarting the renderd service ...
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Mapnik Input of Mercator Flat File
I'm just starting with Mapnik. I followed an example found online to dump an input datasource into a small output image. So far, so good.
Now I want to read a 16384x12800 PNG file I have. It's a ...
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Converting a Maputnik JSON style to a mapnik XML stylesheet
I have a Mapbox JSON map style generated by Maputnik, and I want to use it for an OpenStreetMap tile renderer with Mapnik. Is it possible to convert the JSON style to a XML stylesheet for Mapnik? I ...
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Mapnik image render not corresponding to generated tiles
I successfully manage to install a tile server using Mapnik following this tutorial: https://switch2osm.org/serving-tiles/manually-building-a-tile-server-ubuntu-22-04-lts/
The tiles are fine and look ...
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Modifying openstreetmap-carto style to preference English labels
I have a working local OSM tile renderer (courtesy the kind people at switch2osm for the instructions). I'd like it to render labels in English where available, falling back to the local name if there ...
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OSM to SpatiaLite (spatialite_osm_map or ogr2ogr) for mapnik
I am trying to convert OSM data of a region (136MB pbf) to SQLite.
I have two options: spatialite_osm_map or ogr2ogr.
My region's SpatiaLite file is 932MB with ogr2ogr, while it is 741MB with ...
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Python mapnik get TextSymbolizer bounding boxes
Is there a way to obtain the bounding boxes of each TextSymbolizer present on the map? For now, I'm using mapnik 3 and I create a map using a custom XML containing TextSymbolizer. I want to have ...
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138
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Creating an image at coordinates with given radius
It seems, like a trivial task, but I struggle to understand where I am doing wrong.
I have a postgres db with maps, from which I create a mapnik::Map with whole map. Then, when I get query with ...
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Mapnik usage in client server app
I am trying to use mapnik in my project, but I think I might be using it inefficiently or just wrong.
Project is mapserver, one of requests from client is: get PNG of map providing current coordinates ...
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How to create mapnik XML file for database
I have a folder of sea maps in S57 format (i.e. file.000 files). And I want to create a .png at some location as input. So my tools are: old debian-based OS, S57 as map format, navi2pg or ogr2ogr to ...
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TileMill / Mapnik(?) reads numeric column as string
I have this shapefile: https://www.dropbox.com/sh/ywo8ofa02eel3k8/AAC6trz-nw6zD_Hfyzi1jxJHa?dl=0
I have TileMill installed on my computer running Arch Linux. I start the program up by navigating to ...
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0
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Own OSM map tile server seems not to render or is very slow
I have a problem with my own tile server. I tested it with https://download.geofabrik.de/europe/germany/bayern-latest.osm.pbf and everything works fine. At the beginning it took about 200 seconds to ...
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Roads overwrite railways in deep tunnels
I'm trying to set up a tileserver to deliver a custom map of London's railway system using CartoCSS and Mapnik. London has overground lines, underground lines, a light railway and a tram system.
I ...
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How to create WMS using mapproxy with Mapnik XML file as input?
I have Mapnik generated XML file for mapproxy input, but I didn't understand how to manage this into mapproxy.
I want to create WMS using mapproxy with Mapnik XML file input.
My XML file: myxml_mapnik....
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Generate or create OGC WMS using Python mapnik
I want to create an OGC WMS server from mapnik PostGIS using Python.
I have successfully post table on PostGIS using:
shp2pgsql -s 4326 /Users/apple/Downloads/111SHAPEFILE/Point.shp points | psql -d ...
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How can I fix the error "failed to initialize projection" on Mapnik?
I have the "failed to initialize projection" problem in the current mac version 3.1.0.
The error text:
RuntimeError: failed to initialize projection with: '&srs900913;'
In older issues ...
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283
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installing MAPNIK problems
I'm trying to install MAPNIK in ubuntu 16.04.
I downloaded the files from here: https://github.com/mapnik/mapnik, and follow the instructions from here:
https://github.com/mapnik/mapnik/blob/master/...
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334
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Pre-rendering tiles fail, only once in a while
I've customized the https://github.com/Overv/openstreetmap-tile-server and broken it down into two images, a Tile-Server and a Postgis-Server. Both Tile Server and PostGIS Server are up and running in ...
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How to create a tile from a TIFF stored in PostGIS using Mapnik in nodejs
I stored TIFF in the database using:
raster2pgsql -c -C -s 4326 -f geom_raster -F -I evapo_01_201.tif -t 200x200 public.rasters | psql -U postgres -d gaaf -h localhost -p 5432
I think it's alright ...
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Convert styles to Mapnik 3 XML
I am using Ordnance Survey's OpenMap - Local in Mapnik 3.0.
Ordnance Survey make stylesheets available here:
https://github.com/OrdnanceSurvey/OS-OpenMap-Local-stylesheets
Is there a way to convert ...
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I get a transparent/empty image with Mapnik in python from a raster file
I start by selecting a raster from the website of the Swiss Federal Office.
Therefore, I know, with certainty, the projection in which this layer is located.
Source : https://shop.swisstopo.admin.ch/...
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Applying color style to GeoTIFF layer using Mapnik and Python
I am trying to apply a color style to a GeoTIFF using Mapnik.
The code I'm using is:
import mapnik
map = mapnik.Map(800,600)
map.srs = '+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs'
style = ...
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Changing Mapnik style -- generating empty tiles/images
I got my osm2pgsql/PostGIS/Mapnik/Nik4 setup up and running. I have tested it with the openstreetmap-carto style and everything works well. Now I want to change the style to Mapbox' pencil style (...
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How to draw a marker with Mapnik?
After setting up a tile server accordingly this instruction https://switch2osm.org/serving-tiles/manually-building-a-tile-server-20-04-lts/ my offline tile server working nicely.
And after helping of ...
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How to create a map to PNG file with specific box coordinates by Mapnik?
I recently manually built a tile server with this instruction ->
https://switch2osm.org/serving-tiles/manually-building-a-tile-server-20-04-lts/.
I downloaded location data for Russia from ...
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Styling a contour line to indicate the direction of elevation
I've just got a slippy map set-up using Mapnik to render OpenStreetMap data.
I've loaded SRTM elevation data following the PostGIS steps here and can now see contour lines on the map.
I'm trying to ...
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529
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imposm3 on PostGIS to mapnik conversions
I am working with osm2psql and imposm3 to load a postgres db with OSM data.
The performance of imposm3 is seemingly far in advance of osm2psql (to a factor of 4 i am finding).
However I cannot find ...
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Serve multiple map styles with mapnik and mod_tile from one server & database
I struggle to set up two different map styles for the mapnik-osm rendering tool chain. According to some help I already found on gis.stackexchange, I set up the renderd.conf for two map styles. But I ...
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How to put a watermark at Mapnik tiles?
Maybe I have to add new layer with my PNG watermark at XML style, but how? I already tried to change somthing at XML, but don't understand how to add one global layer.
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Incorrect tiles from a shapefile are generated by mapnik
I used mapnik_node_tile_server to generate tiles from a shapefile created by gdal_contour.
The tile generation function is:
function fetchTile(layer, z, x, y, callback) {
var map = new mapnik.Map(...
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Mapnik: Cannot get markers to overlap
I'm using the Natural Earth shapefile to generate maps of ethnographic data. For every location where I have evidence of (for example) whether men or women had the job of brewing beer, I want to show ...
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How can insert properties on a vector tile
I am trying to set up a web server in Node.js that serves vector tiles to be displayed in a browser using MapboxGL JS. The data for the vector tiles is stored in a Postgressql database with PostGIS ...
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158
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Import error with Mapnik in Anaconda 2
I'm using Anaconda to write geographic programs, so I need to use packages like Mapnik.
After installing Mapnik in Anaconda2, it started to error. First about Mapnik itself and after do some actions ...
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How to simulate way_pixels rules in GeoServer like in Mapnik?
Openstreetmap-carto project.mml have a queries like this:
way_area/NULLIF(POW(!scale_denominator!*0.001*0.28,2),0) AS way_pixels
Do I understand correctly that way_pixels just shows how many times ...
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Mapnik XML mapfile projection of multiply layers [closed]
How to apply a multiply layer with Mapnik from EPSG:4326 TIFFs to EPSG:3875 projected tiles?
I have two TIFF files, one containing the color-relief and the other the slope-shade (generated with GDAL, ...
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Local OSM Tile Server not rendering
I searched this issue in other topics but only found outdated topics with previous versions of Ubuntu.
I'm using Ubuntu 18.04 in my laptop and I'm following the tutorial available at https://...
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mapnik offline maps using generate_tiles_multiprocess.py
I've been working for a couple of days to get offline map tiles working for use in JXMapviewer2 but I am having trouble when using generate_tiles_multiprocess.py to process the tiles.
My intention is ...
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Mapnik: Can you draw outline/ strokes on Polygon geometries?
My data consists of a lot of polygons which need to be outlined. Unfortunately I cannot find any option on the PolygonSymbolizer - and my LineSymbolizer seems to be without effect. Here is my ...
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Overlapping polygons produce rendering artifacts a low zoom [duplicate]
I have duplicated this problem in both QGIS and mapnik. For this question, I will show the problem using QGIS.
I have imported heightmap images along a coastal area.
I then added an overlay layer ...
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Prerendering OSM tiles with CartoCSS?
I've set up a PostGIS database and imported my map data. Then I ran
render_list
to render my tiles. Serving them through mod-tile works just fine. However, the files on my HDD are *.meta files and ...
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347
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Mapnik Slow tile generation with i9-990K, 64GB ram and NVME SSD Database
I have setup an OSM tile server following the guide at: https://switch2osm.org/manually-building-a-tile-server-18-04-lts and https://github.com/giggls/openstreetmap-carto-de. My database is stored on ...
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108
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TileStache Internal Server Error
I was installing TileStache and and followed all the necessary steps, Upon running the tilestache-server.py file, It starts the server at http://127.0.0.1:8080/. And opening this into my browser gives ...
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3
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344
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Split long lines in PostGIS
I would like to render contours using Mapnik. The problem is that some contours are very long which makes rendering too slow and so I decided to spling long contours to multiple smaller segments. ...
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