From the first version of E-XD++, it already has the full features on Visio Style flowchart Vector Editing, the current version of E-XD++ has performed its functions to extreme, basically, if you want to build any very professional Visio -Like flowcharts, network diagrams based applications, E-XD++ will be the best choice.
http://www.ucancode.net
It has almost all the features of the latest edition of Microsoft Visio. It supports SVG Importing and Exporting. DXF Importing and Exporting,...