Consider a transmittal containing terrain geometry, an oceanographic
<Property Grid> instance, an atmospheric
<Property Grid> instance, and a number of
<Model> instances. The terrain is in one
SRF, the oceanographic <Property Grid>
instance in another, the atmospheric <Property Grid>
instance in a third, and some of the <Model>
instances in a fourth (in this example, LSR). This situation
can be summarized as depicted in
Consider a transmittal in which the environment being represented covers two adjacent cells in GTRS Global Coordinate System SRFs. The data provider represents this by creating a <Transmittal Root> instance with two <Environment Root> components, one for each GTRS GCS SRF.