Some questions about libavoid

[wuleibobo]

libavoid is a very good router library, but I have some questions about it.

1. I tried to run the performance01 example, and output SVG, but I found there are some oblique edges in the SVG diagram, my diagram also contains oblique. How to avoid the oblique edge?

2. I use libavoid in my diagram, my diagram contains 14 node and 1000+ edge, the node size was 400* 10000, and the point coordinates are from 0 to 50000.
   When I router 100 edges, it costs 3s, router 200 edges costs 42s, router 300 edges costs 3m20s, and router 400 edges causes a core dumped error.
   I don't know why the performane becauses very bad when the edge increases and cause core dumped. Could you could you give me some advise for make the performane better?

3. My requirements are the edges were orthogonal, not overlap with other edge, not cross node and not bad performane. Could you give me some recommend option and parametter can reach my requirements?