Class: Tracksperanto::Tool::Lerp

Inherits:
Base
  • Object
show all
Defined in:
lib/tools/lerp.rb

Overview

This tool adds linearly interpolated keyframes BETWEEN the keyframes passing through the exporter

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

inherited, #initialize

Methods included from Parameters

#parameter, #parameters

Methods included from SimpleExport

#just_export

Methods included from ConstName

#const_name

Methods included from BlockInit

#initialize

Methods included from Casts

#cast_to_bool, #cast_to_float, #cast_to_int, #cast_to_string

Constructor Details

This class inherits a constructor from Tracksperanto::Tool::Base

Class Method Details

.action_description ⇒ Object 



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# File 'lib/tools/lerp.rb', line 4

def self.action_description
  "Interpolate missing keyframes of all the trackers"
end

Instance Method Details

#end_tracker_segment ⇒ Object 



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# File 'lib/tools/lerp.rb', line 8

def end_tracker_segment
  @last_f, @last_x, @last_y, @last_res = nil, nil, nil, nil
  super
end

#export_point(frame, float_x, float_y, float_residual) ⇒ Object 



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# File 'lib/tools/lerp.rb', line 13

def export_point(frame, float_x, float_y, float_residual)
  
  if @last_f && (frame - @last_f > 1) # Interpolate!
    interpolated_frames = []
    interpolated_x = []
    lerp(@last_f, @last_x, frame, float_x) do | interp_f, interp_x |
      interpolated_frames << interp_f
      interpolated_x << interp_x
    end
    
    interpolated_y = []
    lerp(@last_f, @last_y, frame, float_y) do | interp_f, interp_y |
      interpolated_y << interp_y
    end
    
    interpolated_res = []
    lerp(@last_f, @last_res, frame, float_residual) do | interp_f, interp_res |
      interpolated_res << interp_res
    end
    
    tuples = interpolated_frames.zip(interpolated_x).zip(interpolated_y).zip(interpolated_res).map{|e| e.flatten }
    tuples.each do | f, x, y, r |
      super(f.to_i, x, y, r)
    end
  else
    super(frame, float_x + (@x_shift || 0), float_y + (@y_shift || 0), float_residual)
  end
  
  @last_f, @last_x, @last_y, @last_res = frame, float_x, float_y, float_residual
end