Available drivers in Datasource and VectorData

The list of drivers available to open and write vector data is not the same in otb::VectorData and otb::ogr::DataSource. The lists of (file extensions / driver) are :

• For otb::ogr::DataSource :

const ExtensionDriverAssociation k_ExtensionDriverMap[] = {
    {".SHP", "ESRI Shapefile"}, {".TAB", "MapInfo File"}, {".GML", "GML"}, {".GMT", "OGR_GMT"}, {".GPX", "GPX"},
    {".SQLITE", "SQLite"},      {".KML", "KML"},          {".CSV", "CSV"}, {".GPKG", "GPKG"}};

• For otb::VectorData (OGRVectorDataIO)

  const std::map<std::string, std::string> m_OGRExtensionsToDrivers = {
      {".SHP", "ESRI Shapefile"}, {".TAB", "MapInfo File"}, {".GML", "GML"},      {".GPX", "GPX"},        {".SQLITE", "SQLite"}, {".KML", "KML"},
      {".GMT", "OGR_GMT"},        {".GPKG", "GPKG"},        {".JSON", "GeoJSON"}, {".GEOJSON", "GeoJSON"}};

This is confusing and limiting for OTB users. Some application are based on VectorData and some are base on otb::ogr::Datasource.

I think the same list should be used for both classes (the union of the two list). The reading/writing is done by ogr so I don't think there is any limitation on this side.

See this forum post