How do I move AnyLogic agents from one space to another? - anylogic

Question

In my AnyLogic model, Container agents are moved around within the Main agent to various locations.
Main contains several instances of Block agents at specific locations. Block contains a multi-bridge overhead crane which is supposed to pick up the Container and move it to local storage.
When the Container is placed at an Attractor within range of the Block's crane, a process inside the Block is called.
This process contains Entry, MoveByCrane, and Exit blocks.
In the MoveByCrane block, at the seize step, AnyLogic is giving me the following error:
Exception during discrete event execution
root.blocks[0].moveContainerIn.seize:
The agent root.containers[0] and the crane com.anylogic.engine.markup.OverheadCrane#50b7349f have different spaces
at com.anylogic.engine.Engine.error(Unknown Source)
at com.anylogic.engine.Agent.error(Unknown Source)
at com.anylogic.engine.Utilities.error(Unknown Source)
at com.anylogic.libraries.material_handling.MHLBlock_xjal.error(Unknown Source)
at com.anylogic.libraries.material_handling.SeizeCrane.j(Unknown Source)
at com.anylogic.libraries.material_handling.SeizeCrane.k(Unknown Source)
at com.anylogic.libraries.material_handling.SeizeCrane.getHookDestinationPoint(Unknown Source)
at com.anylogic.libraries.material_handling.SeizeCrane.a(Unknown Source)
at com.anylogic.libraries.material_handling.SeizeCrane.a(Unknown Source)
at com.anylogic.libraries.material_handling.SeizeCrane$1.onEnter(Unknown Source)
at com.anylogic.libraries.processmodeling.Delay.b(Unknown Source)
at com.anylogic.libraries.processmodeling.Delay.b(Unknown Source)
at com.anylogic.libraries.processmodeling.Delay$9.onEnter(Unknown Source)
at com.anylogic.libraries.processmodeling.InputBlock$1.b(Unknown Source)
at com.anylogic.libraries.processmodeling.InPort.a(Unknown Source)
at com.anylogic.libraries.processmodeling.InPort.receiveImmediately(Unknown Source)
at com.anylogic.libraries.processmodeling.InputBlock$1.a(Unknown Source)
at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source)
at com.anylogic.libraries.processmodeling.OutPort.b(Unknown Source)
at com.anylogic.libraries.processmodeling.OutputBlock.forwardReadyEntityNotification(Unknown Source)
at com.anylogic.libraries.processmodeling.InputBlock$1.a(Unknown Source)
at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source)
at com.anylogic.libraries.processmodeling.OutPort.b(Unknown Source)
at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source)
at com.anylogic.libraries.processmodeling.OutputBlock.a(Unknown Source)
at com.anylogic.libraries.processmodeling.OutputBlock.a(Unknown Source)
at com.anylogic.libraries.processmodeling.OutputBlock$2.a(Unknown Source)
at com.anylogic.libraries.processmodeling.OutputBlock$2.action(Unknown Source)
at com.anylogic.libraries.processmodeling.AsynchronousExecutor_xjal$a.execute(Unknown Source)
at com.anylogic.engine.LibraryEventHandler$b.execute(Unknown Source)
at com.anylogic.engine.Engine.c(Unknown Source)
at com.anylogic.engine.Engine.hi(Unknown Source)
at com.anylogic.engine.Engine.f(Unknown Source)
at com.anylogic.engine.Engine$b.run(Unknown Source)
All of the Block agents are located at different coordinates within main. They each have their own coordinate reference/origin. (The location (0,0) in the block is not the same as (0,0) in main.) Is this the meaning of the term "spaces" in the error message?
Is there a way to move an agent from one space to another?
Should I remove (sink) the agent from one space and create a new one in the other?

Answer 1

Yes.
Easiest way is to use Enter and Exit blocks in Main and your agent types and send the agents across different spaces this way. In the Enter properties, specify a location within the agent type and it will make your arriving agent "switch" to the new space.
If you are not using process modelling blocks, you need to call setEnvironment() and then define the agent location within its new environment using setLocation(...)