QDirWeiGraph is a C++ Qt-based application for the creation of directed weighted graphs, possibly with a high number of nodes and links.
With QDirWeighGraph, you can do some basic actions, for example you can export to .svg, change scale, modify arrow value, move nodes (mouse-action), set a threshold.
For more details, see Help on the application.
QDirWeiGraph works with Qt and TinyXML library.