KML2OFDS is a python script for converting KML maps of fibre optic network infrastructure to the Open Fibre Data Standard. Consult the documentation for more info.

Core to OFDS is the principle that any span of fibre must be terminated at either end by a Point of Presence of some kind. Here we are using Point of Presence in a very loose sense. This might be a simple access point such as a manhole or it might be a full point of presence access point. Consult the standard for more details.

As such, KML2OFDS expects a KML file that contains both fibre optic routes as well as points of presence.

In broad strokes the script:

• parses a KML document for features and separates them into a collection of nodes (any point feature in the KML) and spans (any LineString or collection of LineStrings) in the KML;
• checks for duplicate nodes based on a combination of node 'name' and node latitude, longitude based on an adjustable level of location precision
• the script snaps nodes to the closest point on the closest span, if they are not already somewhere on a span;
• it then breaks each span at every point where a node intersects a span, resulting in a larger number of shorter spans;
• a node is then associated each with the "start" and "end" of each of the spans; and,
• adds meta data to the spans and nodes. at the moment on the most basic meta data is added during the export process