Re: Virtues of normalized coordinates

[Craig Markwardt <craigmnet(at)cow.physics.wisc.edu>]

davidf@dfanning.com (David Fanning) writes:
> Andy Loughe (afl@cdc.noaa.gov) writes:
> 
> > I really don't understand this sentiment.  Data coordinates have always
> > worked well for me when placing text, colorbars, etc. around a plot that 
> > needs such enhancements.  If these things need to "hug" the plot, why
> > use normalized coordinates?  

Another good reason for normalized coordinates is when you want to lay
an image onto an existing plot window.  If you use

PLOT, ... POSITION=... 

to start with then you can place the image easily using David's
TVIMAGE program.  Otherwise, getting a match-up is truly hellish.

Criag


-- 
--------------------------------------------------------------------------
Craig B. Markwardt, Ph.D.         EMAIL:    craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
--------------------------------------------------------------------------