Class: Tracksperanto::Tool::Pad

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

Overview

This tool pads the comp or crops it if given negative values. Use it to say unpad some fucked-up telecine transfers. The padding is in fractional units of the total width and height

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

inherited, #initialize

Methods included from Parameters

included, #parameter, #parameters

Methods included from SimpleExport

#just_export

Methods included from ConstName

#const_name, included

Methods included from BlockInit

#initialize

Methods included from Casts

#cast_to_bool, #cast_to_float, #cast_to_int, #cast_to_string, included

Constructor Details

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

Class Method Details

.action_description ⇒ Object 



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# File 'lib/tools/pad.rb', line 12

def self.action_description
  "Pad or crop the image by a fraction of it's original size"
end

Instance Method Details

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



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# File 'lib/tools/pad.rb', line 23

def export_point(frame, float_x, float_y, float_residual)
  super(frame, float_x - @shift_left, float_y - @shift_bottom, float_residual)
end

#start_export(w, h) ⇒ Object 



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# File 'lib/tools/pad.rb', line 16

def start_export(w, h)
  @shift_left, @shift_bottom = w * left_pad, h * bottom_pad
  w_mult = 1 + left_pad + right_pad
  h_mult = 1 + bottom_pad + top_pad
  super((w * w_mult).ceil, (h * h_mult).ceil)
end