Introduction

This page tries to inspect many of the different types of N-dimensional (spatiotemporal) gridded coverage topologies that could be stored in rasdaman, accompanying every case with GML WCS responses upon both trimming and slicing.

Despite some cases might rarely have a practical real-world example, here we want to give examples for as many allowed geometries as possible.

All responses will highlight the domainSet of each ​coverage, which will all translate to some ​gml:Grid rectified or referenceable subtype. In case of mixed rectilinear/curvilinear geometries, a non-standard so-called ReferenceableGridByArrayAndVectors type [1] will be used, for a more compact and convenient GML description.

Abbreviations:

• GML : Geographic Markup Language
• CRS : Coordinate Reference System
• RTS : Regular Time Series
• ITS : Irregular Time Series
• MRTS : Moving Regular Time Series
• MITS : Moving Irregular Time Series

[1] P. Campalani, A. Beccati, and P. Baumann. Addressing verbosity in GML 3.3 ReferenceableGrid geometries for practical use cases, 2013. Article submitted for conference proceedings.

Topologies Index

Due to the high number of possible cases, hereinafter we propose a first main table for global view.
Each cell then links to a dedicated subsection with the GML descriptions.

In the 1D case, it is also clear how the gridded coverages can cover datasets which are not usually associated with the concept of grids (e.g. trajectories)

table here

Examples

1: 1D temporal series of aspatial data

1a-R

table e.g. with:

GML coverage	GML domainSet	native CRS
ReferenceableCoverage	ReferenceableGridByVectors	​http://kahlua.eecs.jacobs-university.de:8080/def/crs/OGC/0.1/ANSI-Date

Then:

• Trim …
• Slice-S

  <domainSet>
  ...
  <\domainSet>
  

• Slice-T

  <domainSet>
  ...
  <\domainSet>
  

UP

1a-I

Up

2: 1D spatial observations along a straight line

2-aligned

Up

2-diagonal-RTS

Up

2-diagonal-ITS

Up