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Back Edge Format

      Back edges are drawn in the opposite direction as compared to ordinary edges. For instance, if the layout algorithm tries to give all ordinary edges a top-down orientation, it tries to give the back edges a bottom-up orientation.

If a graph contains a cycle, not all edges can have the same orientation: Some edges have to be reversed. In this case, the layout algorithm prefers back edges before selecting any other edge to be reversed.

A back edge is specified by

backedge: {
     sourcename: < title of source node >
     targetname: < title of target node >
     < list of edge attributes >
}


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Next: Near Edge Format Up: Edge Format Previous: Ordinary Edge Format
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