A method for converting a source intensity map into a target intensity map having
a geometry compatible with a desired multi-leaf collimator configuration. The source
intensity map and the target intensity map each have a geometry defining sampling
points of cells within the maps. The method includes defining a field on an object
for radiation delivery. The field includes a plurality of cells defining the source
intensity map, each of the cells having a treatment intensity level. An intermediate
intensity map geometry is created such that the intermediate map contains sampling
points of the source intensity map and the target intensity map. The method further
includes defining treatment intensity levels for cells of the intermediate map
and calculating treatment intensity levels for cells of the target intensity map
based on the intensity level of the intermediate map cells.
