Cascadenik implements cascading stylesheets for Mapnik.

It's an abstraction layer and preprocessor that converts special, CSS-like syntax into Mapnik-compatible style definitions. It's easier to write complex style rules using the alternative syntax, because it allows for separation of symbolizers and provides a mechanism for inheritance.

Links:

• Examples demonstrating simple use.
• Dictionary of properties and values.
• Source code.
• Download from subversion repository.
• Early development notes and examples:
• http://mike.teczno.com/notes/cascadenik.html
• http://teczno.com/cascadenik-openstreetmap/
• http://teczno.com/cascadenik-openstreetmap-II/