ews that GIL provides model
<code class="docutils literal"><span class="pre">HasDynamicYStepTypeConcept</span></code>.</p>
<p>Sometimes it is necessary to swap the meaning of X and Y for a given locator
or image view type (for example, GIL provides a function to transpose an image
view). Such locators and views must be transposable:</p>
<div class="highlight-cpp"><div class="highlight"><pre><span class="n">concept</span> <span class="n">HasTransposedTypeConcept</span><span class="o">&lt;</span><span class="