woldan / praktikum-osm-query

Simple OSM XML Toying

Prerequisites

The following assumes you want to manage the Ruby installation with rbenv. This is not strictly necessary but very comfortable as it allows you to use different Ruby variants and even gem-sets with different local projects.

Ruby Installation and Details

Install rbenv to manage Ruby:

brew install git
brew install rbenv
brew install ruby-build
brew install bash-completion

Add rbenv to PATH and make auto-completion work:

echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(rbenv init -)"' >> ~/.bash_profile

Depending on your terminal you might want/need to use .bashrc instead of .bash_profile.

Optional: Install modern Ruby

rbenv install 2.0.0-p247

Select local Ruby installation:

cd <project>
rbenv local 2.0.0-p247

Ruby Gem nokogiri

Install gem nokogiri for nicer XML support:

gem install nokogiri

Ruby Installation and Details

See the very few options:

ruby queryosm.rb --help

Run it with downloaded dump:

ruby queryosm.rb -f dump.xml

Run it with downloading from Web service

ruby queryosm.rb

Both will produce a (not properly projected and upside-down) SVG file

open out.svg