healpy.projaxes.HpxMollweideAxes.get_parallel_interval

HpxMollweideAxes.get_parallel_interval(vx, vy=None, vz=None)

Get the min and max value of theta of the parallel 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 : between 0 and pi, vmin<vmax, the interval of theta

    for the parallels crossing the field of view

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