Glyphs
Glyph are techniques which map data values to various geometric
and color attributes of graphical primitives or symbols.
One of the most widely recognised form of glyph is histograms
where data values control the height of rectangular bars.
The star glyph pattern, which creates for each point N rays
emanating at equal angles from a point on the screen.
The length of each ray is determined by the data value for
that dimension. A polyline is then generated to encompass
the rays, forming a blob shape.
This technique can be used to look for similar shapes
and simple transitions between shapes. It is also fairly
easy to spot anomalies.
