healpy.projaxes.HpxCartesianAxes.get_meridian_interval

HpxCartesianAxes.get_meridian_interval(vx, vy=None, vz=None)

Get the min and max value of phi of the meridians to cover the field of view.

Input:
  • the normalized vector of the direction of the center of the projection, in the reference frame of the graticule.
Return:
  • vmin,vmax : the interval of phi for the

    meridians crossing the field of view.

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