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Code Issues Releases Wiki Activity

constraints and example

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This commit is contained in:
oblonski 2013-11-07 06:39:24 +01:00
parent 690bcb532a
commit 0936d461f5
4 changed files with 6191 additions and 27 deletions
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87
jsprit-core/src/main/java/algorithms/HardConstraints.java
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@ -25,8 +25,12 @@ import basics.Delivery;
import basics.Pickup;
import basics.Service;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.DeliverService;
import basics.route.DeliverShipment;
import basics.route.DeliveryActivity;
import basics.route.PickupActivity;
import basics.route.PickupService;
import basics.route.PickupShipment;
import basics.route.ServiceActivity;
import basics.route.Start;
import basics.route.TourActivity;
@ -222,13 +226,28 @@ class HardConstraints {
private StateManager stateManager;
private boolean backhaul = false;
public HardPickupAndDeliveryActivityLevelConstraint(StateManager stateManager) {
super();
this.stateManager = stateManager;
}
public HardPickupAndDeliveryActivityLevelConstraint(StateManager stateManager, boolean backhaul) {
super();
this.stateManager = stateManager;
this.backhaul = backhaul;
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
if(!(newAct instanceof PickupService) && !(newAct instanceof DeliverService)){
return true;
}
if(backhaul){
if(newAct instanceof PickupService && nextAct instanceof DeliverService){ return false; }
if(newAct instanceof DeliverService && prevAct instanceof PickupService){ return false; }
}
int loadAtPrevAct;
int futurePicks;
int pastDeliveries;
@ -242,12 +261,12 @@ class HardConstraints {
futurePicks = (int) stateManager.getActivityState(prevAct, StateTypes.FUTURE_PICKS).toDouble();
pastDeliveries = (int) stateManager.getActivityState(prevAct, StateTypes.PAST_DELIVERIES).toDouble();
}
if(newAct instanceof PickupActivity || newAct instanceof ServiceActivity){
if(newAct instanceof PickupService){
if(loadAtPrevAct + newAct.getCapacityDemand() + futurePicks > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
if(newAct instanceof DeliveryActivity){
if(newAct instanceof DeliverService){
if(loadAtPrevAct + Math.abs(newAct.getCapacityDemand()) + pastDeliveries > iFacts.getNewVehicle().getCapacity()){
return false;
}
@ -257,6 +276,62 @@ class HardConstraints {
}
}
static class HardPickupAndDeliveryShipmentActivityLevelConstraint implements HardActivityLevelConstraint {
private StateManager stateManager;
private boolean backhaul = false;
public HardPickupAndDeliveryShipmentActivityLevelConstraint(StateManager stateManager) {
super();
this.stateManager = stateManager;
}
public HardPickupAndDeliveryShipmentActivityLevelConstraint(StateManager stateManager, boolean backhaul) {
super();
this.stateManager = stateManager;
this.backhaul = backhaul;
}
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
if(!(newAct instanceof PickupShipment) && !(newAct instanceof DeliverShipment)){
return true;
}
if(backhaul){
// if(newAct instanceof PickupShipment && nextAct instanceof DeliverShipment){ return false; }
if(newAct instanceof DeliverShipment && prevAct instanceof PickupShipment){ return false; }
}
int loadAtPrevAct;
// int futurePicks;
// int pastDeliveries;
if(prevAct instanceof Start){
loadAtPrevAct = (int)stateManager.getRouteState(iFacts.getRoute(), StateTypes.LOAD_AT_DEPOT).toDouble();
// futurePicks = (int)stateManager.getRouteState(iFacts.getRoute(), StateTypes.LOAD).toDouble();
// pastDeliveries = 0;
}
else{
loadAtPrevAct = (int) stateManager.getActivityState(prevAct, StateTypes.LOAD).toDouble();
// futurePicks = (int) stateManager.getActivityState(prevAct, StateTypes.FUTURE_PICKS).toDouble();
// pastDeliveries = (int) stateManager.getActivityState(prevAct, StateTypes.PAST_DELIVERIES).toDouble();
}
if(newAct instanceof PickupShipment){
if(loadAtPrevAct + newAct.getCapacityDemand() > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
if(newAct instanceof DeliverShipment){
if(loadAtPrevAct + Math.abs(newAct.getCapacityDemand()) > iFacts.getNewVehicle().getCapacity()){
return false;
}
}
return true;
}
}
static class HardPickupAndDeliveryBackhaulActivityLevelConstraint implements HardActivityLevelConstraint {
@ -269,10 +344,10 @@ class HardConstraints {
@Override
public boolean fulfilled(InsertionContext iFacts, TourActivity prevAct, TourActivity newAct, TourActivity nextAct, double prevActDepTime) {
if(newAct instanceof PickupActivity && nextAct instanceof DeliveryActivity){ return false; }
if(newAct instanceof ServiceActivity && nextAct instanceof DeliveryActivity){ return false; }
if(newAct instanceof DeliveryActivity && prevAct instanceof PickupActivity){ return false; }
if(newAct instanceof DeliveryActivity && prevAct instanceof ServiceActivity){ return false; }
if(newAct instanceof PickupService && nextAct instanceof DeliverService){ return false; }
// if(newAct instanceof ServiceActivity && nextAct instanceof DeliveryActivity){ return false; }
if(newAct instanceof DeliverService && prevAct instanceof PickupService){ return false; }
// if(newAct instanceof DeliveryActivity && prevAct instanceof ServiceActivity){ return false; }
int loadAtPrevAct;
int futurePicks;
int pastDeliveries;