Automatic rotation of panoramas

[James C. W. <jfc...@ya...>]

Hi all,
 
Sorry to bring this up again, but I've encountered another problem with my auto-panning function. Namely, the camera slows down exponentially as it rotates. This is because the local variables "autoPan_speedAZ" and "autoPan_speedEL" are updated every repitetion, so that the camera doesn't lose track of its target if the user moves the view themselves. Is there a way to make up for the decrease in speed?
 
Thanks,
   James CW
 
 
 
************CODE***************
 
function autoPan(autoPan_tarAZ, autoPan_tarEL, autoPan_length) 
local autoPan_rate = 0.025            
local autoPan_viewAZ, autoPan_viewEL = pipmak.getviewdirection()  
local autoPan_speedAZ, autoPan_speedEL = 0, 0
local autoPan_iterCount = nil 
            
 
pipmak.schedule(
    autoPan_rate,                 
  function() 
      if autoPan_iterCount == nil then                           
        autoPan_iterCount = autoPan_length / autoPan_rate 
      end                    
      autoPan_viewAZ, autoPan_viewEL = pipmak.getviewdirection()  
      autoPan_speedAZ = (autoPan_tarAZ - autoPan_viewAZ) / autoPan_iterCount )   
      autoPan_speedEL = (autoPan_tarEL - autoPan_viewEL) / autoPan_iterCount )
      if autoPan_viewAZ + 0.1 > autoPan_tarAZ and autoPan_viewAZ - 0.1 < autoPan_tarAZ and autoPan_viewEL + 0.1 > autoPan_tarEL and autoPan_viewEL - 0.1 < autoPan_tarEL then
        autoPan_iterCount = nil                                    
        pipmak.setviewdirection(autoPan_tarAZ, autoPan_tarEL)
        return                                                     
      else                                                        
        pipmak.setviewdirection(autoPan_viewAZ + autoPan_speedAZ, autoPan_viewEL + autoPan_speedEL ) 
      end
      return autoPan_rate                             
   end
  )
end