Class: PhotoUtils::Tools::ChartDOF

Inherits:
PhotoUtils::Tool show all
Defined in:
lib/photo_utils/tools/chart_dof.rb

Instance Method Summary collapse

Methods inherited from PhotoUtils::Tool

#description, #initialize, #name, #usage

Constructor Details

This class inherits a constructor from PhotoUtils::Tool

Instance Method Details

#run ⇒ Object 



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# File 'lib/photo_utils/tools/chart_dof.rb', line 9

def run

  # set up basic scene

  basic_scene = Scene.new
  basic_scene.subject_distance = 8.feet
  basic_scene.sensitivity = 400
  basic_scene.brightness = 8

  scenes = []

  if false

    scene = basic_scene.dup
    scene.format = Format['35']
    scene.focal_length = 50.mm
    scene.aperture = 2
    scene.description = "#{scene.format}: #{scene.focal_length} @ #{scene.aperture}"
    scenes << scene

    scene = basic_scene.dup
    scene.format = Format['6x6']
    scene.focal_length = 92.mm
    scene.aperture = 8
    scene.description = "#{scene.format}: #{scene.focal_length} @ #{scene.aperture}"
    scenes << scene

    scene = basic_scene.dup
    scene.format = Format['5x7']
    scene.focal_length = 253.mm
    scene.aperture = 64
    scene.description = "#{scene.format}: #{scene.focal_length} @ #{scene.aperture}"
    scenes << scene

  end

  if false

    scene = basic_scene.dup
    scene.format = Format['35']
    scene.focal_length = 90.mm
    scene.aperture = 2.8
    scene.description = "#{scene.format}: #{scene.focal_length} @ #{scene.aperture}"
    scenes << scene

    scene = basic_scene.dup
    scene.format = Format['35']
    scene.focal_length = 90.mm
    scene.aperture = 4
    scene.description = "#{scene.format}: #{scene.focal_length} @ #{scene.aperture}"
    scenes << scene

    scene = basic_scene.dup
    scene.format = Format['35']
    scene.focal_length = 90.mm
    scene.aperture = 5.6
    scene.description = "#{scene.format}: #{scene.focal_length} @ #{scene.aperture}"
    scenes << scene

    scene = basic_scene.dup
    scene.format = Format['35']
    scene.focal_length = 85.mm
    scene.aperture = 4
    scene.description = "#{scene.format}: #{scene.focal_length} @ #{scene.aperture}"
    scenes << scene

    scene = basic_scene.dup
    scene.format = Format['35']
    scene.focal_length = 85.mm
    scene.aperture = 5.6
    scene.description = "#{scene.format}: #{scene.focal_length} @ #{scene.aperture}"
    scenes << scene

  end

  if true

    camera = Camera[/eastman/i] or raise "Can't find camera"
    basic_scene.description = camera.name
    basic_scene.camera = camera

    aperture = camera.lens.max_aperture
    while aperture <= camera.lens.min_aperture
      scene = basic_scene.dup
      camera.lens.aperture = aperture
      # break if scene.time > 1.0/30
      scene.description += ": #{camera.lens.focal_length} @ #{camera.lens.aperture}"
      scenes << scene
      aperture = Aperture.new_from_v(aperture.to_v + 1)
    end

  end

  scenes.each do |scene|
    scene.print; puts
  end

  # max_distance = scenes.map { |s| s.depth_of_field.far }.max
  # max_distance = scenes.map { |s| s.hyperfocal_distance }.max
  max_distance = 50.feet

  camera_width  = scenes.map { |s| s.focal_length }.max
  camera_height = scenes.map { |s| [s.absolute_aperture, s.frame.height].max }.max

  html = Builder::XmlMarkup.new(indent: 2)
  html.declare!(:DOCTYPE, :html)
  html.html do
    html.head {}
    html.body do
      html.table do
        scenes.each do |scene|
          scene_view = SceneView.new(scene,
            max_distance: max_distance,
            camera_width: camera_width,
            camera_height: camera_height)
          html.tr do
            html.td do
              html << scene.description
            end
            html.td do
              html << scene_view.to_svg
            end
          end
        end
      end
    end
  end

  output_file = @args.first or raise
  Path.new(output_file).write(html.target!)
end