Daniele Romagnoli a écrit : > How can I handle this special vertical level? (Since, I need to define > a Vertical CRS... which vertical datum?)
For stuff like "depth in meters below sea level" and "isobaric level", there is existing VerticalDatumType that can be used for creating VerticalDatum instances: http://geoapi.sourceforge.net/snapshot/javadoc/org/opengis/referencing/datum/VerticalDatumType.html#DEPTH For heights relative to cloud level, an application needs to defines new VerticalDatumType using the static valueOf(String) method. > In the case of a level such as "Cloud Top Level" or "Cloud Base Level" > is there a special way to define "its position with respect to the > Earth"? Not at this time. ISO 19111 do not suggests any programmatic way, only textual way, probably because the relationship is often quite complex. For example defining the position of VerticalDatumType.GEOIDAL with respect to VerticalDatumType.ELLIPSOIDAL is the subject of a whole GeoTools module on its own: modules/unsupported/referencing3D. GeoTools referencing module lacks a way to plugin vertical transformations at this time. Martin ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Geoserver-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-devel
