Summary Relationships

Another quick 'Friday Preview' of a feature I'm working on. This time it's what I call 'Summary Relationships'. As you can see from the following diagram, this enables a 'many to one' relationship.

This has been a popular request over the years - but it's only now that I've finally figured out how best to do it (it's surprisingly difficult to design - I've failed on at least 2 previous attempts.) Anyway, the key ideas are as follows:

  • There is a new type of relationship link line - called a 'Summary Relationship'
  • When a summary relationship is created, then the target topic is then designated as a 'Summary Topic'.
  • A 'Summary Topic' is not subject to auto layout. This means you can move the summary topic to a position that is most appropriate for your map (see below)
  • There are no properties to set on a summary relationship. It adopts the same color as the target topic and its style is the same as the normal parent/child link (only in reverse!)


As for summary topics not being subject to auto layout - this enables the following type of diagram. Notice, also, how the same 3 topics can be 'summarised' twice. This is one of the advantages of using a relationship approach as opposed to having a dedicated 'summary' type feature.

Coming to a mindmap app near you soon...


Posted on December 11, 2015 .