cified.'</span>)
0026 <span class="keyword">elseif</span> (numFrames == 0) <span class="comment">% Clear all</span>
0027     error(<span class="string">'btk:CropAcquisiton'</span>,<span class="string">'Due to the mechanism used in BTK, it is not possible to remove all the frames. Contact the developers if you really need it.'</span>)
0028 <span class="keyword">end</span>
0029 <span class="comment">% Data to keep</span>
0030 <span class="comment">% - Point</span>
0031 pidx = (startAt:startAt+numFrames-1)-ff+