Data Specification on Orthoimagery – Draft ... - INSPIRE - Europa

INSPIRE Reference: D2.8.II.3_v2.0
TWG-OI <strong>Data</strong> <strong>Specification</strong> on Orthoimagery 2011-06-15 Page 42
Name: Orthoimagery GMLJP2 Application Schema
Version: version 2.0, GMLJP2, version 0.3.0
<strong>Specification</strong>: GML in JPEG2000 for Geographic Imagery [OGC 05-047r2]
Character set: UTF-8
The GMLJP2 Application Schema is distributed in a zip-file separately from the data specification
document.
GML in JPEG 2000 specifies the use of GML within the XML boxes of the JPEG 2000 imagery format.
Since a collection of coverages may be embedded into a single JPEG 2000 file, this standard allows
the encoding of a complete INSPIRE Orthoimagery <strong>Data</strong>set. Note, however, that all the radiometric
content of the data set must fit within a single file, which can be problematic for most of use cases (in
particular, file-based tiling is not allowed).
9.2.2.1.1. Encoding rule(s) used
Open issue 10: Explicit encoding rules are still required for the provision of the range through the
binary format JPEG2000.
These encoding rules should be based on the coverage format encoding extension for JPEG2000 that
will be developed in OGC Web Services Phase 8 (OWS-8) over summer 2011.
10 <strong>Data</strong> Capture
There is no specific guidance required with respect to data capture.
11 Portrayal
This clause defines the rules for layers and styles to be used for portrayal of the spatial object types
defined for this theme.
In section 11, the types of layers are defined that are to be used for the portrayal of the spatial object
types defined in this specification. A view service may offer several layers of the same type, one for
each dataset that it offers on a specific topic.
Section 11.2 specifies the styles that shall be supported by INSPIRE view services for each of these
layer types.
In section 11.3, further styles can be specified that represent examples of styles typically used in a
thematic domain. It is recommended that also these styles should be supported by INSPIRE view
services, where applicable.
Where XML fragments are used in these sections, the following namespace prefixes apply:
• sld="http://www.opengis.net/sld" (WMS/SLD 1.1)
• se="http://www.opengis.net/se" (SE 1.1)
• ogc="http://www.opengis.net/ogc" (FE 1.1)
IR Requirement 22 If an INSPIRE view services supports the portrayal of data related to the
theme Orthoimagery, it shall provide layers of the types specified in this
section.