Terrain
=======

Digital elevation models and terrain analysis.

.. automodule:: pytcl.terrain
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DEM Interface
-------------

Digital Elevation Model interface and operations.

.. automodule:: pytcl.terrain.dem
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Data Loaders
------------

GEBCO and Earth2014 terrain data loaders. The default GEBCO version is
GEBCO 2025. Requires ``pip install nrl-tracker[terrain]`` for NetCDF support.

.. automodule:: pytcl.terrain.loaders
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Visibility Analysis
-------------------

Line-of-sight and viewshed computation.

.. automodule:: pytcl.terrain.visibility
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