[rules-users] Drools Planner changing problem fact

Hi all, i am new to drools planner and try to model a 2dimensional rectangle packing problem. I have some problems modelling the problem facts because one of them (the list of free spaces) is constantly changing. For example I have a list of rectangles I try to pack on a fixed size layer. This list is fixed. But the list of free space is dynamic (first you have the whole layer as free space, then you cut out the space occupied by the first rectangle which gives you 3 remaining free spaces, and so on) All the examples in the drools-planner-examples seem to have a fixed list of problem facts (rooms, teachers, timeslots) which only should be combined optimally. How can a dynamic number of problem facts be modelled? Greetings Ralph -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Planner-changing-problem-fact-tp... Sent from the Drools: User forum mailing list archive at Nabble.com.