Hydrographic survey software, capable of interfacing to any conceivable sensor. Sextant can provide customised outputs in addition to standard outputs, for example for echo-sounder annotation and to provide steering data for autopilots. Works with multiple coordinate systems at one time, available from a large library of systems.

Close up of survey vessel manoeuvring in a harbour.

Chart wih satellite imagery used for hill shading.

Running a survey line. Survey lines can be defined as planar, rhumb or geodesic, on any spheroid.