Add label rotate for edgelabel, headlabel and taillabel
Can we add support for rotating the labels to be parallel to the edges. Currently all labels are horizontal. The
labelangle only considers where to place the label. Not the angle of the text. While creating network diagrams, I am trying to add both ends of the interface as head/tail label. Since a node can have multiple interfaces, the labels overlap sometimes.
dot2tex (to explain this better), the dot2tex supports
lblstyle="above, slopped" option which can rotate the edgelabel. This still does not rotate the head/tail label.