How to insert a minimum horizontal space between 2 participants or 2 groups in a sequence diagram

Question

In my sequence diagram I am using par2 to show the parallel execution of 2 loops in different CPU cores, but the 2 loop boxes are overlapping, and the graphical result is poor, and hard to read:

@startuml

box "group 1" #lightblue
    Participant P1
    Participant P2
end box
' I would like to insert an horizontal minimu space constraint here
box "group 2" #lightgreen
    Participant P3
    Participant P4
end box

par2
    loop forever
        P1 -> P2
        P2 --> P1
        end
else
    loop forever
        P3 -> P4
        P4 --> P3
    end
end
@enduml

Answer 1

Hello, 

Start with the following:

 

@startuml

skinparam BoxPadding 30

 

Hope this helps

Comments

Thanks for answering. Unfortunately, it has no effect in this case (I am using the 2017.10 version)

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Very strange, because it is working with version 2017.09 (on the web site) and 2017.10 locally:

@startuml
skinparam BoxPadding 40

box "group 1" #lightblue
    Participant P1
    Participant P2
end box
' I would like to insert an horizontal minimu space constraint here
box "group 2" #lightgreen
    Participant P3
    Participant P4
end box

par2
    loop forever
        P1 -> P2
        P2 --> P1
        end
else
    loop forever
        P3 -> P4
        P4 --> P3
    end
end
@enduml

---

You are right, it works :o). I was testing the code using the diagram plugin for sublime, and it was using a "hidden" copy of plantuml version 8024.
I modified the python code to remove the version test and it is ok now, both when invoking directly plantuml from windows or from the plugin.

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This doesn't seem to work in the Teoz architecture.

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You are right. I create a small sample to reproduce on a new message