### Description

This example shows how to find the minimum spanning tree. The input graph is:

<img style="float:middle" src="https://raw.githubusercontent.com/Kitware/vtk-examples/gh-pages/src/SupplementaryData/Cxx/Graphs/3_vertex_fully_connected_graph.svg">


and the minimum spanning tree computed is :

<img style="float:middle" src="https://raw.githubusercontent.com/Kitware/vtk-examples/gh-pages/src/SupplementaryData/Cxx/Graphs/Minimum_spanning_tree.svg">


You must have compiled VTK with VTK_USE_BOOST=ON to use this functionality. You must also link to vtkInfovis.
