Filling Out the Array 2D Spectrum Data Structure

The <Array_2D_Spectrum> class is a specialization of the Array_2D class. It exists on the assumption that PDS will develop spectrum-specific software support that will be able to take advantage of assumptions and structures made for this data type.

So far, none of that has happened, nor does it appear to be in any sort of serious planning stage. The Array_2D_Spectrum is defined in the schema as a restriction of the Array_2D, but has the exact same definition. Further, you may not use a Display_2D_Image class in this data structure, as you can for Array_2D_Image. So for now it makes more sense to ignore this class and stick Array_2D_Image.

For an Array_2D_Spectrum, follow the instructions for Filling Out the Array_2D Data Structure, with the following additional contraints/requirements:

• Use <Array_2D_Spectrum> and </Array_2D_Spectrum> rather than <Array_2D> and </Array_2D>.