Gallery ======= .. figure:: images/3rd_PIV-Challenge_Case_B_all_tracks.png :align: center Tracks of the `3rd PIV-Challenge Case B <http://www.pivchallenge.org/>`_ .. figure:: images/4Um_Run_1_5.png :align: center Tracks of the 4 Umf case from the `Small Scale Problem 1 <https://mfix.netl.doe.gov/experimentation/challenge-problems/>`_ .. figure:: images/fluid_bed.png :align: center Particles colored by velocity in a pseudo 2D fluid bed.