title: Graph nodes coordinates evaluation
body: <p>Which of these (<a href="https://stackoverflow.com/questions/492893/graph-drawing-c-library">https://stackoverflow.com/questions/492893/graph-drawing-c-library</a>) libraries can be used to evaluate nodes coordinates? I mean I want to draw and manipulate graph by clicking on it to add some nodes or delete, and then evaluate coordinates using some lightweight library. </p>
  
  <p>All I need is algorithm which could on dot file and speciefied layout (<a href="http://en.wikipedia.org/wiki/DOT_language" rel="nofollow noreferrer">http://en.wikipedia.org/wiki/DOT_language</a>) give me conformity of graph nodes and 2D points.</p>
  
  <p>Prefferable languages: C++, C#, Java</p>