public class OceanDepthData
extends Object
Encapsulates the ocean depth data; has a lat/long, depth, and a flag
 as to whether or not the depth data is valid. This is required because
 the server may return "don't know" or "no data" to some queries, and
 we want to differentiate between "zero" and "no data". Effectively
 this marks the depth value as a null value.
- Author:
- DMcG