                           }
                        }
                    }
                }
                geojson_data = {}; // list with all columns containing geoJSON data
                for (var column_name in result_data) {
                    if (result_data[column_name]['type'] === 'LocationValue') { // condition à améliorer
                        geojson_data[column_name] = {"type": "FeatureCollection", "features": []};
                        for (var line_key in formatted_data) {
         