Développement par les manufacturiers
TRANSAS Draft Optimization Visualizer
INDUSOL 3D Navigator
Contour generation is complex
Files are heavy
No flexibility for water level integration
S-57 was not designed to answer the need we have now.

3 usages
Harbour entry = 0.02 X 0.02 degrees (2 kilometers)
Coastal = 0.1 X 0.1 degrees (10 kilometers)
Overview = 1 X 1 degrees (100 kilometers)
3 resolutions
Harbour entry = 0.02 degrees / 1000 = 0.00002  (2 meters)
Coastal = 0.1 X 0.1 degrees / 1000 = 0.0001 (10 meters)
Overview = 1 X 1 degrees / 1000 = 0.001 (100 meters)