l00031"></a>00031 <span class="preprocessor"></span><span class="preprocessor">#define planar_ref          planar_pixel_reference</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span><span class="preprocessor">#define membased_2d_locator memory_based_2d_locator</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span><span class="preprocessor">#define pixel_step_iterator memory_based_step_iterator</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="prep