:py:mod:`hypso.georeference.georef.geometric`
=============================================

.. py:module:: hypso.georeference.georef.geometric


Module Contents
---------------


Functions
~~~~~~~~~

.. autoapisummary::

   hypso.georeference.georef.geometric.minimum_bounding_rectangle
   hypso.georeference.georef.geometric.mat_from_quat
   hypso.georeference.georef.geometric.rotate_axis_angle
   hypso.georeference.georef.geometric.ecef_to_lat_lon_alt
   hypso.georeference.georef.geometric.eci_to_lat_loneci_alt
   hypso.georeference.georef.geometric.eci_lon_to_ecef_lon
   hypso.georeference.georef.geometric.eci_to_lat_lon_alt
   hypso.georeference.georef.geometric.pos_ecef_to_lat_lon_alt
   hypso.georeference.georef.geometric.lat_lon_alt_to_ecef
   hypso.georeference.georef.geometric.ellipsoid_line_intersection



Attributes
~~~~~~~~~~

.. autoapisummary::

   hypso.georeference.georef.geometric.R_eq
   hypso.georeference.georef.geometric.f
   hypso.georeference.georef.geometric.e_2
   hypso.georeference.georef.geometric.R_pl


.. py:function:: minimum_bounding_rectangle(points)

   Find the smallest bounding rectangle for a set of points. Rval is a 4x2 matrix of bounding box corner coordinates

   :param points: nx2 matrix of coordinates

   :return: a set of points representing the corners of the bounding box.


.. py:function:: mat_from_quat(quat)

   Matrix from Quaternion

   :param quat: must be a four element list of numbers or 4 element nump array

   :return:a 3x3 numpy array containing the rotation matrix


.. py:function:: rotate_axis_angle(vec, axis, angle)

   Rotates vector vec around axis axis by angle angle Both vec, axis, and vec_rot are column vectors. axis is a
   unit vector, angle is in radians

   :param vec:
   :param axis:
   :param angle:

   :return:


.. py:data:: R_eq
   :value: 6378137.0

   

.. py:data:: f

   

.. py:data:: e_2

   

.. py:data:: R_pl
   :value: 6356752.0

   

.. py:function:: ecef_to_lat_lon_alt(pos)

   Input pos has to be Nx3, and units in meters

   :param pos:

   :return: lat lon (with respect to ECI axes) and altitude in degrees and meters


.. py:function:: eci_to_lat_loneci_alt(pos)

   ECI to latitude and longitude and altitude

   :param pos:

   :return:


.. py:function:: eci_lon_to_ecef_lon(datetime_utc, lon, time_offset)

   ECI to longitude to ECEF Longitude conversion
   :param datetime_utc:
   :param lon:
   :param time_offset:

   :return:


.. py:function:: eci_to_lat_lon_alt(pos, times, time_offset)

   ECI to Lat/Lon Altitude

   :param pos: needs to be Nx3
   :param times: needs to be N
   :param time_offset: is a float. is an additional time offset to adjust georeferencing

   :return: Numpy array with pseudo latitude and longitude and altitude


.. py:function:: pos_ecef_to_lat_lon_alt(pos)

   Coverts POS ECEF to latitude and longitude and altitude
   :param pos:
   :return:


.. py:function:: lat_lon_alt_to_ecef(lla)

   Converts latitude and longitude ALT to ECEF
   :param lla:
   :return:


.. py:function:: ellipsoid_line_intersection(point, direction)

   Calculates the ellipsodie and line intersection

   :param point:
   :param direction:

   :return: