Multiple Parent Nodes

[Soulice]

Anyone modified this for multiple parent nodes. For many
visualizations (other than a company org chart) the chart needs to be
able to have multi parents...like genealogy, manufacturing process
mapping, etc...

[asgallant]

The amount of modification the org charts would need to do that would be so extensive you might as well code your own from scratch (or more likely, find out if anyone else made an API that does handle it).  I've only seen things like this in systems where you can drag and drop your elements on the canvas to find the best positioning, as multi-parents can wreak havok with organizing the output (ex, how would you lay out a chart with 6 elements [A, B, C, X, Y, Z] such that X is a child of A + B, Y is a child of B + C, and Z is a child of A + C?).

[Soulice]

Yeah, I rolled my own and don't like it. Oddly enough, many of the
API's all start at a root. Most process charting has a starting
point, but many items can feed into things, they usually don't start
at a single piont.