p'>*</span> <span class='id identifier rubyid_x_zoom'>x_zoom</span> <span class='op'>+</span> <span class='ivar'>@x</span><span class='comma'>,</span>
      <span class='lparen'>(</span><span class='id identifier rubyid_y'>y</span> <span class='op'>-</span> <span class='ivar'>@source_y</span><span class='rparen'>)</span> <span class='op'>*</span> <span class='id identifier rubyid_y_zoom'>y_zoom</span> <span class='op'>+</span> <span class='ivar'>@y</span><span class='comma'>,</span>
      <span class='id id