VPaint software.

The development team of VPaint software come with this info:
VPaint was an experimental vector graphics editor based on the Vector Animation Complex (VAC), a technology developed by a collaboration of researchers at Inria and the University of British Columbia, featured at SIGGRAPH 2015.
You can use it with the following operating systems: Windows Vista, 7, 10, Max OS X and Linux.
I tested and is a good software with some important gaps for the user:

• you cannot copy frames;
• export is just for PNG and SVG file format;
• too few tools; 

The software can be improved and you can contribute here.

Dynamic Draw - vector graphics editor.

This software is a vector graphics editor and can be found it here.
Working with instalation and portable version under Windows OS.
It is an object-oriented drawing and design program and is for making flowcharts, line drawings, org charts, buttons, etc.

It has intelligent linking system by using the keys T and V ( or will select your arrow line with another key from tool menu).
It can export the graphics image as SVG, JPG, TIFF, PNG, EMF, WMF, PSD, BMP.

It supports OLE and that help you to copy objects and paste on other applications as OLE.The official website come with just one prepared a demonstration movie (see here).