span class='op'>-</span> <span class='const'><span class='object_link'><a href="#BIG_CORNER-constant" title="ExampleApp::MetalPanel::BIG_CORNER (constant)">BIG_CORNER</a></span></span><span class='rparen'>)</span>

  <span class='id identifier rubyid_upper_right_corner'>upper_right_corner</span><span class='period'>.</span><span class='id identifier rubyid_y'>y</span> <span class='op'>=</span> <span class='ivar'>@h</span> <span class='op'>-</span> <span class='const'><span class='object_link'><a href="#SMAL