FogRange

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maytorre++at++NMSU.Edu
Wed, 26 Oct 1994 10:31:39 -0600 (MDT)

 Hello Performers,

  Does any one know the units of pfFogRange for their opaque (far fog) range.
 Or what is their relationship to meters? We have tried making the
following relationship but it does not appear to be correct.

 exp^(-density*5.5*MaxRange(in meters) <= 1/255

  density = 3.912 / (Visibility (km) *5500)
  
 thus

 Opaque Range = Visibility (km.) * 5500.0 /3.912 (meters)

 That is we give a visibility and compute the opaque range value assuming
that performer's opaque range is in meters.

  Thanks in advance
   
  Mario A. Torres
  maytorre++at++nmsu.edu

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