5 ms·

I would really like a sequence diagram that allow for diagonal arrows, not just horizontal ones. A message takes time to arrive to its destination and sometimes

I would really like a sequence diagram that allow for diagonal arrows, not just horizontal ones. A message takes time to arrive to its destination and sometimes it's interesting what else could happen during this time, for example the backend sending another response to the requester. Also requests don't arrive to the destination in the exact order they where made. All of these are impossible to represent with horizontal arrows.

dariusj18 5y ago
Apparently https://sequencediagram.org/ https://sequencediagram.org/ is what you want. It has "non-instantaneous message"
- keithnz 5y ago
  It doesn't quite do what was asked, while it handles angled lines, it doesn't seem to support overlapping angled lines, which in comms systems is common
  - michegor 5y ago
    Well, if you really want to, you can do it: Alice->(5)Bob:message1 space -6 Alice(4)<-Bob:the other\nmessage
prepend 5y ago
There’s an asynchronous notation in sequence diagrams if responses can go back in different order. Still uses horizontal arrows but the arrowhead is different. I don’t think diagonal arrows really help with this and will be harder to deal with because they could get overlapping really quickly. But if things are truly out of sequence use something other than a sequence diagram. Just a regular flow chart, or activity diagram, or state diagram.
braho 5y ago
I second this. I have been using sequence diagrams a lot for embedded or real-time systems a lot last year, and travel time is important there. Besides, it allows to have one diagram abstract from another, without modifying execution times.
smhanov 5y ago
WebSequenceDiagrams supports this: https://www.websequencediagrams.com/?lz=dGl0bGUgVW4AAwVkCgpBLT4oMSlCOiB0ZXh0AAkFMwABDTQAEwk&s=default https://www.websequencediagrams.com/?lz=dGl0bGUgVW4AAwVkCgpB... Premium version allows crossed messages: https://www.websequencediagrams.com/cgi-bin/cdraw?lz=dGl0bGUgVW4AAwVkCgpBLT4oMSlCOiB0ZXh0AAkFMwABDTQAEwkKcGFyYWxsZWwgewogICAgAB4OICAgIEIAOQVBAEUHfQoK&s=default&h=KKjao5z1sq44HJuD https://www.websequencediagrams.com/cgi-bin/cdraw?lz=dGl0bGU...

dariusj18 5y ago

Apparently https://sequencediagram.org/ https://sequencediagram.org/ is what you want. It has "non-instantaneous message"

keithnz 5y ago
It doesn't quite do what was asked, while it handles angled lines, it doesn't seem to support overlapping angled lines, which in comms systems is common
- michegor 5y ago
  Well, if you really want to, you can do it: Alice->(5)Bob:message1 space -6 Alice(4)<-Bob:the other\nmessage

prepend 5y ago

There’s an asynchronous notation in sequence diagrams if responses can go back in different order. Still uses horizontal arrows but the arrowhead is different. I don’t think diagonal arrows really help with this and will be harder to deal with because they could get overlapping really quickly. But if things are truly out of sequence use something other than a sequence diagram. Just a regular flow chart, or activity diagram, or state diagram.

braho 5y ago

I second this. I have been using sequence diagrams a lot for embedded or real-time systems a lot last year, and travel time is important there. Besides, it allows to have one diagram abstract from another, without modifying execution times.

smhanov 5y ago

WebSequenceDiagrams supports this: https://www.websequencediagrams.com/?lz=dGl0bGUgVW4AAwVkCgpBLT4oMSlCOiB0ZXh0AAkFMwABDTQAEwk&s=default https://www.websequencediagrams.com/?lz=dGl0bGUgVW4AAwVkCgpB... Premium version allows crossed messages: https://www.websequencediagrams.com/cgi-bin/cdraw?lz=dGl0bGUgVW4AAwVkCgpBLT4oMSlCOiB0ZXh0AAkFMwABDTQAEwkKcGFyYWxsZWwgewogICAgAB4OICAgIEIAOQVBAEUHfQoK&s=default&h=KKjao5z1sq44HJuD https://www.websequencediagrams.com/cgi-bin/cdraw?lz=dGl0bGU...