Method: Alien::AlienTag#update

Defined in:
lib/alien/alientag.rb

#update(new_tag) ⇒ Object

Updates an existing tag object from the new one by incrementing the count and setting the new last time



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# File 'lib/alien/alientag.rb', line 124

def update(new_tag)
  # Copy the last timestamp and increment the counts
  @last      = new_tag.last
  @count    += new_tag.count
  @last_last = @last
=begin
# Update the speed, smooth it, calculate distance
dt = (@last - @last_last) * 86400.0
smooth_coef   = 5
smooth_factor = Math.exp(-smooth_coef*dt)
thresh_zero1  = -0.01 # Any speeds between these thresholds are considered 0
thresh_zero2  = +0.01
puts
#printf("\ndt=%0.000010f, smooth_factor(init)=%0.00005f\n", dt, smooth_factor)

# Update the speed, smooth out jitter
@speed = new_tag.speed
if @speed.to_f > thresh_zero1 && @speed.to_f < thresh_zero2
# @speed = 0
end

#printf("speed_smooth(initial)=%+0.003f\n", @speed_smooth)
@speed_smooth = @speed_smooth*smooth_factor + @speed.to_f*(1 - smooth_factor)
@pos_last     = @pos_smooth
@pos_smooth  += @speed_last * dt/1000
@speed_last   = @speed_smooth

printf("speed=%+0.003f", @speed.to_s)
printf(", speed_smooth=%+0.003f", @speed_smooth.to_s)
printf(", pos=%+0.005f\n", @pos_smooth.to_s)

# Update new pos_min, if needed
@pos_min = @pos_smooth if (@pos_smooth < @pos_min)
printf("pos_last=%+0.5f, pos_min=%0.5f\n", @pos_last.to_s, @pos_min.to_s)
# If last position was the min and tag is moving away --> TopDeadCenter
if @pos_last == @pos_min && @pos_smooth > @pos_last
  puts "********************************************"
end
=end

end