Re: z_floor and z_ceiling (was Re: various observations)

[Ethan A M. <merritt@u.washington.edu>]

On Saturday 20 May 2006 04:13 pm, Daniel J Sebald wrote:
> > you can accomplish the same thing by saying
> > 	set xyplane at func(GPVAL_Z_MIN,GPVAL_Z_MAX)
> 
> I don't totally follow what "func" does.
  See below
> The idea of a relative placement of the xyplane isn't bad.
  It is not necessary

> if I want the xyplane 20% below the z-axis I type 0.2 
> and if I want the xyplane 20% above the z-axis I type -1.2. 

Ugh.  Too confusing.  I'd rather do:

  set xyplane at GPVAL_Z_MAX + 1.2*(GPVAL_Z_MIN - GPVAL_Z_MAX)
  set xyplane at GPVAL_Z_MIN + 1.2*(GPVAL_Z_MAN - GPVAL_Z_MIN)

-- 
Ethan A Merritt
Biomolecular Structure Center
University of Washington, Seattle 98195-7742