Add draft OFG visualization

ae83230d · Christof Angermueller · 6caaadde · ae83230d · ae83230d · ae83230d
--- a/doc/d3printing/GSoC/150724_opfrom/draft/draft.pdf
+++ b/doc/d3printing/GSoC/150724_opfrom/draft/draft.pdf
--- a/doc/d3printing/GSoC/150724_opfrom/draft/draft.pptx
+++ b/doc/d3printing/GSoC/150724_opfrom/draft/draft.pptx
--- a/doc/d3printing/GSoC/150724_opfrom/index.html
+++ b/doc/d3printing/GSoC/150724_opfrom/index.html
--- a/doc/d3printing/GSoC/150724_opfrom/index.ipynb
+++ b/doc/d3printing/GSoC/150724_opfrom/index.ipynb