[Radiance-general] Radiance documentation organization

[Gregory J. Ward]

I promised at the Leicester workshop to propose a hierarchy for  
extant Radiance documentation, sort of a straw man to get people  
thinking about this.  I strongly encourage others to rearrange these  
topics, change names, add categories, etc.

Thinking about it for a bit, I opted for a functional organization  
over an application-based hierarchy, simply because so many tools and  
techniques are common to different applications, and I was trying to  
keep the organization as tree-like as possible, realizing that this  
goal is basically unachievable.

Caveats aside, here's what I have:

I. Input
	A. CAD links and conversion tools
	B. Photometry & Sky models
	C. Generator programs
	D. Scene processing (xform, replmarks, oconv, etc.)

II. Computation
	A. Rendering (batch & interactive)
	B. Illumination calculations
	C. Executive programs (rad, rayfront, etc.)

III. Output
	A. Image processing
	B. Image viewing
	C. Image format conversion
	D. Graphing & plotting

In addition, I suggest we include an alternate arrangement of  
tutorial materials, which necessarily bridge these functional  
boundaries.  I am hoping others can offer suggestions for how these  
should be organized, as I don't even have a good list of tutorials  
available.

Some thought should also be given to how one might organize materials  
from the Radiance workshops.  Again, the basic categories above will  
be bridged or extended by many of the talks, and the chronological  
arrangement we now have is of less and less use as time goes on.

Help, please!
-Greg