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.. "auto_examples/combinedSlopeAndDestination.py"
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.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_auto_examples_combinedSlopeAndDestination.py>`
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.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_examples_combinedSlopeAndDestination.py:


Required Slope & Destination Point Applying Slope For Distance and Bearing
==========================================================================
1. Computes the required climb/descent slope and horizontal distance between two WGS84 waypoints.
2. Computes the destination waypoint (lat, lon, alt) from an initial waypoint, given a slope,
   horizontal distance and bearing.
Uses three different geodesic algorithms: Vincenty, Haversine, and Rhumb-Line.

.. GENERATED FROM PYTHON SOURCE LINES 9-54




.. rst-class:: sphx-glr-script-out

 .. code-block:: none


    === Vincenty ===
    Required slope from waypoint1 → waypoint2:
      Slope               = -2.99961347°
      Horizontal distance = 9.69865646 NM
    Destination waypoint applying slope & distance:
      Latitude  = 52.288069°
      Longitude = 21.027576°
      Altitude  = 7959.57 ft

    === Haversine ===
    Required slope from waypoint1 → waypoint2:
      Slope               = -3.00793832°
      Horizontal distance = 9.67176503 NM
    Destination waypoint applying slope & distance:
      Latitude  = 52.288103°
      Longitude = 21.028590°
      Altitude  = 7959.57 ft

    === RhumbLine ===
    Required slope from waypoint1 → waypoint2:
      Slope               = -3.00793696°
      Horizontal distance = 9.67176941 NM
    Destination waypoint applying slope & distance:
      Latitude  = 52.236724°
      Longitude = 20.711886°
      Altitude  = 7959.57 ft






|

.. code-block:: Python


    from pyBADA import conversions as conv
    from pyBADA import geodesic as geo

    # ——— Inputs for required–slope example ———
    waypoint1 = {
        "latitude": 52.2367946579192,
        "longitude": 20.7129809016565,
        "altitude": 3500.0,  # ft
    }
    waypoint2 = {
        "latitude": 52.1697191213371,
        "longitude": 20.9519554471793,
        "altitude": 412.0,  # ft
    }

    # ——— Inputs for destination–point example ———
    initial_waypoint = waypoint1.copy()
    slope_deg = 3.5  # degrees (positive = climb)
    distance_nm = 12.0  # nautical miles
    bearing_deg = 75.0  # degrees from true north

    # ——— Run both examples for each algorithm ———
    for algo_name, Algo in [
        ("Vincenty", geo.Vincenty),
        ("Haversine", geo.Haversine),
        ("RhumbLine", geo.RhumbLine),
    ]:
        print(f"\n=== {algo_name} ===")

        # 1) Required slope & horizontal distance
        slope_req_deg, dist_m = Algo.requiredSlope(waypoint1, waypoint2)
        dist_nm = conv.m2nm(dist_m)
        print("Required slope from waypoint1 → waypoint2:")
        print(f"  Slope               = {slope_req_deg:.8f}°")
        print(f"  Horizontal distance = {dist_nm:.8f} NM")

        # 2) Destination point given a slope, distance & bearing
        dest_wp = Algo.destinationPointApplyingSlopeForDistance(
            initial_waypoint, slope_deg, distance_nm, bearing_deg
        )
        print("Destination waypoint applying slope & distance:")
        print(f"  Latitude  = {dest_wp['latitude']:.6f}°")
        print(f"  Longitude = {dest_wp['longitude']:.6f}°")
        print(f"  Altitude  = {dest_wp['altitude']:.2f} ft")


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.001 seconds)


.. _sphx_glr_download_auto_examples_combinedSlopeAndDestination.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: combinedSlopeAndDestination.ipynb <combinedSlopeAndDestination.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: combinedSlopeAndDestination.py <combinedSlopeAndDestination.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: combinedSlopeAndDestination.zip <combinedSlopeAndDestination.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

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