The set_binary*
functions are used to set the data of a Binary
item. The Points
parameter of CmdReprojectPoints, however, expects an array of points.
cmd.parameters()[ITM_POINTS][0][0] = x
cmd.parameters()[ITM_POINTS][0][1] = y
cmd.parameters()[ITM_POINTS][0][2] = z
I hope that helps getting you further.