.. _objects_line:

Line Object Service
===================

Service for accessing the line object.
It is possible to use a Get and Set method for getting object specific data.
Line objects can be e.g. roughness or elevation data.
Properties of the object can be found here :ref:`TApiObjLine <TApiObjLine>`.
A small example can be found below.

Line objects can be used as TIN.
You can control this with the property ``DefaultHC``.
If set to True it windPRO will set this property on all other elevation grid objects and line objects to False.
If no other object in the windPRO is used as TIN a newly added elevation grid will have True as default.


.. literalinclude:: ../../../python/examples/fromDocs/objects/line_object.py

A line object can be added with the ObjectService.
But to make it usable it needs to be connected to a file containing the line data.
Most elevation data in windPRO's online data catalogue is provided as grid data.
An example how to downlaod elevation grid data and convert them to a line object is added below:

.. literalinclude:: ../../../python/examples/fromDocs/objects/elevationgrid_object.py