fetch X, Y for HexBin using new mechanism
fetch X, Y for HexBin using new mechanism

DougFirErickson/PDAL,boundlessgeo/PDAL,radiantbluetechnologies/PDAL,mpgerlek/PDAL-old,radiantbluetechnologies/PDAL,mpgerlek/PDAL-old,jwomeara/PDAL,lucadelu/PDAL,jwomeara/PDAL,boundlessgeo/PDAL,lucadelu/PDAL,mtCarto/PDAL,jwomeara/PDAL,mtCarto/PDAL,mpgerlek/PDAL-old,Sciumo/PDAL,jwomeara/PDAL,mtCarto/PDAL,radiantbluetechnologies/PDAL,DougFirErickson/PDAL,mtCarto/PDAL,mpgerlek/PDAL-old,lucadelu/PDAL,Sciumo/PDAL,DougFirErickson/PDAL,boundlessgeo/PDAL,radiantbluetechnologies/PDAL,Sciumo/PDAL,boundlessgeo/PDAL,Sciumo/PDAL,lucadelu/PDAL,DougFirErickson/PDAL