Class: Cosmos::SceneConfig

Inherits:
Object show all
Defined in:
lib/cosmos/tools/opengl_builder/scene_config.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename, dragable = true) ⇒ SceneConfig

Returns a new instance of SceneConfig.



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# File 'lib/cosmos/tools/opengl_builder/scene_config.rb', line 22

def initialize(filename, dragable = true)
  @scene = GlScene.new

  shape = nil
  parser = ConfigParser.new
  parser.parse_file(filename) do |keyword, parameters|
    case keyword
    when 'STL_FILE'
      usage = "#{keyword} <filename> <scaling factor (optional)>"
      parser.verify_num_parameters(1, 2, usage)
      shape = StlShape.new(0.0, 0.0, 0.0)
      if parameters[0] =~ /^\// or parameters[0] =~ /^\w:/
        shape.stl_file = parameters[0]
      else
        shape.stl_file = File.join(Cosmos::USERPATH, 'config', 'data', parameters[0])
      end
      raise "STL File \"#{shape.stl_file}\" does not exist" unless File.exist? shape.stl_file
      shape.show_load_progress = true
      shape.tipText = parameters[0]
      shape.dragable = dragable
      if parameters[1]
        shape.stl_scaling_factor = parameters[1].to_f
      end
      @scene.append(shape)

    when 'TEXTURE_MAPPED_SPHERE'
      usage = "#{keyword} <texture_filename>"
      parser.verify_num_parameters(1, 1, usage)
      shape = TextureMappedSphere.new(0.0, 0.0, 0.0, parameters[0])
      shape.dragable = dragable
      @scene.append(shape)

    when 'TIP_TEXT'
      usage = "#{keyword} <text>"
      parser.verify_num_parameters(1, 1, usage)
      shape.tipText = parameters[0]

    when 'COLOR'
      usage = "#{keyword} <red> <green> <blue> <alpha (optional)>"
      parser.verify_num_parameters(3, 4, usage)
      if parameters[3]
        shape.base_color = [parameters[0].to_f, parameters[1].to_f, parameters[2].to_f, parameters[3].to_f]
      else
        shape.base_color = [parameters[0].to_f, parameters[1].to_f, parameters[2].to_f, 1.0]
      end
      shape.color = shape.base_color.clone

    when 'POSITION'
      usage = "#{keyword} <x> <y> <z>"
      parser.verify_num_parameters(3, 3, usage)
      shape.position = [parameters[0].to_f, parameters[1].to_f, parameters[2].to_f]

    when 'ROTATION_X'
      usage = "#{keyword} <rotation_x>"
      parser.verify_num_parameters(1, 1, usage)
      shape.rotation_x = parameters[0].to_f

    when 'ROTATION_Y'
      usage = "#{keyword} <rotation_y>"
      parser.verify_num_parameters(1, 1, usage)
      shape.rotation_y = parameters[0].to_f

    when 'ROTATION_Z'
      usage = "#{keyword} <rotation_z>"
      parser.verify_num_parameters(1, 1, usage)
      shape.rotation_z = parameters[0].to_f

    when 'ZOOM'
      usage = "#{keyword} <zoom>"
      parser.verify_num_parameters(1, 1, usage)
      @scene.zoom = parameters[0].to_f

    when 'ORIENTATION'
      usage = "#{keyword} <q0> <q1> <q2> <q3 - scalar>"
      parser.verify_num_parameters(4, 4, usage)
      @scene.orientation = Quaternion.new([parameters[0].to_f, parameters[1].to_f, parameters[2].to_f, parameters[3].to_f])

    when 'CENTER'
      usage = "#{keyword} <x> <y> <z>"
      parser.verify_num_parameters(3, 3, usage)
      @scene.center = [parameters[0].to_f, parameters[1].to_f, parameters[2].to_f]

    when 'BOUNDS'
      usage = "#{keyword} <x0> <x1> <y0> <y1> <z0> <z1>"
      parser.verify_num_parameters(6, 6, usage)
      @scene.bounds = GlBounds.new(parameters[0].to_f, parameters[1].to_f, parameters[2].to_f, parameters[3].to_f, parameters[4].to_f, parameters[5].to_f)

    else
      raise "Unknown keyword #{keyword} with parameters #{parameters.join(' ')}"
    end # case keyword
  end # parser.parse_file

end

Instance Attribute Details

#scene ⇒ Object

Returns the value of attribute scene.



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# File 'lib/cosmos/tools/opengl_builder/scene_config.rb', line 20

def scene
  @scene
end