DUMPEMFIELDS:: write out electromagnetic field map on a 4D grid in space-time. Cartesian and cylindrical grids are supported. `DUMPEMFIELDS` is an extension of `DUMPFIELDS`.
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== DUMPFIELDS Command
The `DUMPFIELDS` statement causes _opal-cycl_ to write out static magnetic field data on a 3D cartesian grid. The format of field output is:
