"Spider charts" I'm pretty sure of:

The top of my personal list of bad graphics is the device known as the spider chart, or the radar chart. I won't go into the details here, but the basic problem is that it too uses area to let the viewer compare different charts, but the area displayed in the chart is dependent on the order of the variables as they are placed around the graphic.
http://datamining.typepad.com/data_mining/2006/04/the_humble...

Spider chart. Also known as a “radar” chart. A diagram used to identify gaps in performance. Data on
a critical performance measure for two or more agencies are plotted and connected on the diagram.
Different colors or types of lines are used to differentiate between agencies. See example below [with picture]
http://www.mh.state.oh.us/oper/research/publications/ta.data...

I wouldn't swear to "oriented" though. Quite frankly I don't see what it adds. I would have though all spider/radar charts were "oriented".

THere's also a thing called a cobweb graph, but that appears to be more mathematical.

Cobweb Graphs
SPOTLIGHT
Chaos
Besides plotting the solution sequence, there is another graphical method that enables direct visualization of iteration and equilibrium values. This graphing technique can be constructed with just the plot of a function determined from the difference equation and a straightedge or ruler. The resulting graph is called a cobweb graph, or just cobweb. We will show an example first and then outline the general algorithm for producing cobwebs
www.webpearls.com/products/demos/pap/comap/chapter1/sec7/no...