-- Bug description --
In the last version of Scilab (5.2.1) for MACOS, the help on edges_data_structure indicates that the fourth field "data" is initially empty. In particular, the arcs haven't any name. If you create a simple graph and display it, going to the menu "view" and selecting the item "option" allow to choose to view the names of the nodes and the names of the arcs ! (which have not yet been defined). It seems that the displayed informations correspond in fact to their internal numbers. There is no difference between the dispaly of the attributes "number" or "name".
-- Scilab error message --
-- How to reproduce the bug --
// creating a directed graph with 13 nodes and 14 arcs.
ta=[1 1 2 7 8 9 10 10 10 10 11 12 13 13];
he=[2 10 7 8 9 7 7 11 13 13 12 13 9 10];
g=make_graph('foo',1,13,ta,he);
g.nodes.graphics.x=[40,33,29,63,146,233,75,42,114,156,237,260,159]
g.nodes.graphics.y=[7,61,103,142,145,143,43,120,145,18,36,107,107]
show_graph(g)