#! /usr/bin/env ruby # coding: utf-8

class CrystalCell::Povray::Triangle < Mageo::Triangle

  attr_accessor :color, :transmit
  
  def initialize(vec0, vec1, vec2, color, transmit = nil)
    super(vec0, vec1, vec2)
    @color = color
    @transmit = transmit
  end

  # povray 形式の文字列を返す。
  # color は Float による配列。通常、0〜1の範囲。
  def to_pov
    v = self.vertices
    result = sprintf("triangle{<%f,%f,%f>,<%f,%f,%f>,<%f,%f,%f>",
      *@vertices[0], *@vertices[1], *@vertices[2])
    result +=  sprintf(" pigment {color rgb<%f,%f,%f>", *@color)
    result +=  sprintf(" transmit %f", @transmit) if @transmit
    result +=  "}}"
    #result = sprintf("triangle{<%f,%f,%f>,<%f,%f,%f>,<%f,%f,%f> " +
    #  "pigment {color rgb<%f,%f,%f>}}",
    #  *@vertices[0], *@vertices[1], *@vertices[2], *@color)
    #
    return result
  end

  def dump(io)
    io.puts self.to_pov
  end
end