Patent ID: 8581909

Claim:
A method for determining and ordering the characteristic points of a bridge on an airport map comprising a set of polygons characterizing elements of linkway type, each polygon exhibiting an identifier, and each polygon being defined by a set of points, each point common to two polygons having a single mathematical representation, and a bridge defined by a set of at least four points, the method comprising: determining a set of neighbouring polygons adjoining the bridge from among the set of polygons; verifying, for each point of the bridge, equality with a point of one of said neighbouring polygons, consequently being an adjacent polygon, to construct a set of 2 to N common points, N being greater than or equal to 4; recording, for each common point, the identity of the polygon or polygons to which said each common point belongs, determining four characteristic points of the bridge, from among the common points found in the verifying; determining the two pairs of characteristic points, corresponding to a step of ordering said characteristic points, said pairs constituting segments parallel to a direction of travel over the bridge.