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| Namespace: | http://zvon.org/graphotron/vcg |
| Element: | backedge |
| Description: | These edges are not laid out in the normal orientation, but are reverted. For instance, if the layout algorithm tries to give all normal 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 must be reverted. In this case, the layout algorithm prefers back edges before selecting any other edge to be reverted. |
| Values: | empty |
|
XML Source
<source> <START1/> <END1/> <START2/> <END2/> <START3/> <END3/> <START4/> <END4/> </source> |
Graphotron Source
<graphotron xmlns:vcg="http://zvon.org/graphotron/vcg" xmlns="http://zvon.org/graphotron" > <vertex match="/*/*"> <name select="name()"/> </vertex> <edge match="/*/START1" select="/*/END1"> <vcg:backedge/> </edge> <edge match="/*/START2" select="/*/END2"> </edge> <edge match="/*/START3" select="/*/END3"> <vcg:backedge/> </edge> <edge match="/*/START4" select="/*/END4"> </edge> </graphotron> |