|Sequence diagram: upward messages [message #744736]
||Sat, 22 October 2011 09:52
| Alex Berezkin
Registered: July 2009
I'm working with Papyrus UML Sequence diagram and can not understand: why it's impossible to create messages directed upwards? Is it a bug or feature? Suppose we have very simple example including two lifelines and one asynchronous message (see picture attached). The initial diagram is in the top-left. When I drag arow end downwards (bottom-left figure), it's OK. But when I drag it upwards, this is impossibe, mouse cursor becomes restrictive (see top-right figure). However, if to move the whole right lifeline upwards, diagram editor allows this, and we get message directed upwards (bottom-right figure).
Does anyone knows why is this? And is there a way to create messages directed upwards?
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[Updated on: Sun, 23 October 2011 03:27]
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