.. _calculations_zvi:

ZVI Calculation Service
=======================

CalcZVIService gives access to ZVI module to calculate where turbines are visible in the terrain.
It only contains two function, ``CalcZVIService.GetZVICalc`` for getting a ZVI calculations and
``CalcZVIService.SetZVICalc`` for passing it back to windPRO.
With the general calculation service data and reports can be extracted from the ZVI calculations.
Find below and example that gets data from a ZVI calculation and exports the data (also including shadow and noise calculations).

.. literalinclude:: ../../../python/examples/fromDocs/calculations/decibel_shadow_zvi_calculation.py