Tag based connections about conrod HOT 4 CLOSED

I'm not sure if "tag" is the right word for it, perhaps we will find a better name.

from conrod.

A tag can be assigned a color and this makes it possible to show connections in different colors.

Each tag represents a graph that is a subset of the "current graph".

The current graph can use gray color for edges with inbuilt semantics of the search result.

When adding a tag to a connecting it can check the predicate of the search result and pop up a warning if it removes the node from the search result.

from conrod.

One thing that inspired me is using colors or "tags" to represent multidimensional properties of a graph http://en.wikipedia.org/wiki/Adinkra_symbols_%28physics%29

Conrod will probably use a 3D based graph for practical purposes, but the information inside the graph can be N-dimensional.

from conrod.

This should go into another library.

from conrod.