overview

pyrenderer is a collection of scripts to run jrenderer application

external dependencies

overpass api

this is needed to fetch osm file with all seamarks from openstreetmap database

osmium

osmium allows to compare osm files and extract osm files from another osm file

jrenderer

java application renders sea marks by a given osm file note: jrenderer is part of josm plugin JOSM-seachart

setup workbench

clone the project

git clone https://github.com/stevo01/pyrenderer.git
cd pyrenderer

install required applications and libs

sudo apt install osmium-tool python3 python3-pip
sudo apt install openjdk-8-jre-headless
pip3 install osmium

sudo apt install libpostgis-java libpostgresql-jdbc-java
libpostgresql-jdbc-java (42.2.5-2).
libpostgis-java (1:2.3.0-1)

java version

the renderer is compatibel and running with Java(TM) SE Runtime Environment (build 1.8.0_xxx)

the following url include install instrations for linux: https://docs.datastax.com/en/jdk-install/doc/jdk-install/installOracleJdkDeb.html

alternative solution is the openjdk in version 11

sudo apt install openjdk-11-jre-headless

example

the following command sequences generates the sea mark tiles in zoom level 9.18 for following area:

geo json: { "type": "Feature", "geometry": { "type": "Polygon", "coordinates": [[[11.074219, 53.644638],[12.128906, 53.644638],[12.128906, 54.265224],[11.074219, 54.265224],[11.074219, 53.644638] ]]}, "properties": { }}

tile info: x = 272, y = 164, z = 9

files and directories

name: ./workingdir/in/osm description: osm file(s) from overpass api

name: ./workingdir/osm-extracts/ description: osm files generated by pyextract.py / osmium

name: ./workingdir/tilecache/ description: tiles generated by pyrender / jrenderer

tile storage schema

schema: tiles/z/x/y.png

sample: ./9/272/164.png

filenames osm extracts

schema: x-y-z.osm

sample: 272-164-9.osm

fetch osm file with all seamarks from openstreetmap database (http://overpass-api.de/api/interpreter)

mkdir -p workingdir/in/osm
wget -O workingdir/in/osm/seamarks_planet.osm --timeout=600 --post-file=./sampledata/query/overpass-api-planet.overpassql "http://overpass-api.de/api/interpreter"

generate osm file extract

The following sample generates osm extracts for following tile:

mkdir log
python3 pyextract.py -g -i ./workingdir/in/osm/seamarks_planet.osm -o ./workingdir/ -y 164 -x 272

generate tiles

The following sample generates sea mark tiles.

options: -o path for storage of generated tiles -i path to osm extracts needs to be rendered -d run in "server mode" (like a daemon)

python3 pyrenderer.py -i ./workingdir/osm-extracts/ -o ./workingdir/tilecache/

bookmarks

git@github.com:stevo01/renderer.git https://github.com/OpenNauticalChart/renderer.git

stevo01 / pyrenderer