François Lecordix

IGN · Service des applications innovantes

By following technological developments in 3D printing, IGN experimented in 2015 with an ink jet-based relief printing solution, proposed by the Océ company. The first result was presented at the International Cartographic Conference in Rio de Janeiro in 2015, for the Belle-Ile map. The proposed technology solved several essential needs for relief...

The French national mapping agency, Institut national de l’information géographique et forestière (IGN France), launched a new web service in June 2016, called Minecraft® on Demand specifically for young people. This free web service is designed to provide Minecraft® maps with the raster and vector geographic databases that IGN produce on the Frenc...

The French national mapping agency, Institut national de l’information géographique et forestière (IGN), decided to develop a new web service, called Minecraft on Demand (www.ign.fr/Minecraft), designed to provide Minecraft maps from the geographic data that IGN produces. This free web service enables the user to select the center of the map and to...

In the context of custom map design, handling more artistic and expressive tools has been identified as a carto-graphic need, in order to design stylized and expressive maps. Based on previous works on style formalization, an approach for specifying the map style has been proposed and experimented for particular use cases. A first step deals with t...

National Mapping Agencies (NMAs) are still among the main end users of research into automated generalisation, which is transferred into their production lines via various means. This chapter includes contributions from seven NMAs, illustrating how automated generalisation is used in practice within their partly or fully automated databases and map...

The French National Mapping Agency (IGN) plans to renew all the topographic maps at 1 : 25 000 and 1 : 50 000 scale. The New Base Map project has been launched in order to produce a flow line for topographic maps from a vector geographic database, and decrease costs of topographic map production. The project aims also to automate the extraction of...

From now on, the French National Mapping Agengy (IGN France) is set up with the BD TOPO®. This is a topographic vector database that covers the whole national territory. IGN has decided to product base maps at 1:25k and 1:50k from this database. On topographic mountain maps, rocks areas are among the most difficult map elements to represent, dealin...

From now on, the French National Mapping Agengy (IGN France) is set up with the BDTopo®. This is a topographic vector database that covers the whole national territory. IGN decided to produce base maps at 1:25k and 1:50k from this database. On topographic mountain maps, rock areas are among the map elements that are the most difficult to produce wi...

This chapter reviews practical experience gained from the application of generalization technologies in the production environment of the French National Mapping Agency (IGN). Two main stages in production that require generalization solutions are presented. The first step concerns the process of creating from a geographic database a first version...

Disposant désormais d’une base de données topographiques vecteur sur toute la France, la BD TOPO®, l’Institut géographique national a décidé de dériver toute sa carte de base au 1 : 25 000 et au 1 : 50 000 sur l’ensemble du territoire à partir de cette base de données. Les zones de haute montagne présentent une difficulté particulière pour la carto...

In a localised step by step approach of cartographic generalisation, one of the algorithms applied to roads consists in displacing or distorting a road segment in order to solve coalescence or overlap conflicts. To maintain topological relationships, the displacement has to be propagated to neighbouring objects, in a cushioned way. Algorithms of cu...

In 1999, the French National Mapping Agency (IGN) decided to launch a new 1:100 000 scale map series called Top100: these maps will be derived from the reference database BDCarto® covering the whole French territory with a 10-meter resolution. The Carto2001 project was entrusted with designing the process leading to the realisation and maintenance...

Research on generalization implies a need for intensive experiments with the tools developed. This need implies in turn that a research platform be available which allows for an easy development and integration of new algorithms, and which provides interactive facilities for determining the best tools sequences and tunings with respect to the geome...

Lettering is of prime importance for maps, but positioning is a time-consuming process which may account for up to 50% of the map-editing. This paper adresses the main para meters that lead positioning, and the problems entailed. Then an approach for automated road administrative name-placement is presented which takes into account these pro blems....

In 2004, the French National Mapping Agency IGN launched an important project, called New Base Map Project, to develop a new flow line for topographic maps production at 1:25 000 and 1:50 000 scales, from the vector geographic database BDUni®. All maps (1810) of the whole country must be redrawed from geographic database, in particular in mountain...