-class.html">num</a></span> <span class="parameter-name">x1</span></span> <span class="parameter" id="createLinearGradient-param-y1"><span class="type-annotation"><a href="dart-core/num-class.html">num</a></span> <span class="parameter-name">y1</span></span>)
            <span class="returntype parameter">&#8594; <a href="dart-html/CanvasGradient-class.html">CanvasGradient</a></span>
          </span>
                  </dt>
        <dd>
          
                  
</dd>
        <dt id="createPattern" cla