lid range will not be shown and pixels
whose value has been set as an invalid value will be mapped to 0.

As an example, the figure below shows a dataset with the value '55' set to be invalid:

<center>
<img src="images/validrange.png" />
<br />
</center>

<h3><a name="ug05subset_size"></a>
5.2.2 Dimension Size</h3>
<p>
A subset is determined by the start and end locations, and the stride. The
&ldquo;Start&rdquo;
array determines the starting coordinates of the subset to select. The
&ldquo;End&rdquo;
array 