node position info in auto-layout

[Bing <liubingxjtu AT gmail.com>]

Hi:

I am new to GraphStream. Sorry to trouble.

I met following questions, and want to ask for help:

1. Once I generated the graph based on auto-layout, is it possible to obtain the position info of each node? e.g. x= , y =...

2. How can I change the edge type? in default, the link is solid line, can I change it into dash line or other type? by CSS?

Thanks.