94
Copyright © 2012 Open Geospatial Consortium.
marker-end=urlTriangleRed xsl:attribute name=d
xsl:for-each select=owc:offeringowc:contentxima:Annotationxima:pointergml32:LineString
gml32:pos xsl:choose
xsl:when test=position=1M xsl:when xsl:otherwiseL xsl:otherwise
xsl:choose xsl:value-of
select=concatinv_pixelsize_xnumbersubstring-before., +offset_pixel_x, , inv_pixelsize_ynumbersubstring-after.,
+offset_pixel_y, xsl:for-each
xsl:attribute path
image width=32 height=32 xlink:href=PinPinkIcon.png xsl:attribute name=xxsl:value-of
select=inv_pixelsize_xnumbersubstring- beforeowc:offeringowc:contentxima:Annotationxima:annotatesgml32:Pointgml3
2:pos, +offset_pixel_x - 16xsl:attribute xsl:attribute name=yxsl:value-of
select=inv_pixelsize_ynumbersubstring- afterowc:offeringowc:contentxima:Annotationxima:annotatesgml32:Pointgml32
:pos, +offset_pixel_y - 32xsl:attribute image
svg xsl:when
This small exercice deomestrates that XIMA can be used in an Atom econded OWS Context and that is can easily be transformed into an SVG that can be then rendered in
modern web browsers.
10.2 ServiceMetadata documents and OWS Context convergence
In the subclause 8.7 Transform a WMSWFS Capabilities document into an OWS Context document, we have exposed the possibility to transform an OGC ServiceMetadata
document into an OWS Context format automatically. This conversion can be extended to other services and even consider to include the possibility that an OWS service can
respond an OWS Context as part of its capabilities, along with other possibilities such as an ISO 19119 document possibly adding this as alternatives to the ServiceMetadata
document in OWS Common standard.
Copyright © 2012 Open Geospatial Consortium.
95
10.3 GeoPackage manifest and OWS Context convergence
In the subsection 7.4.1 OWS Context package example we have exposed the similarities of the GeoPackage Manifest and the OWS Context, as well as the possibility that the
GeoPackage Manifest can be defined as an extension of the OWS Context.
The convergence of both standards has to be further explored. In OWS9 it has been demonstrated that an OWS Context can be used to generate a GeoPackage with the
context referenced in the OWS Context. This relation has to be explored further. If a GeoPackage information has been update while the system was offline, there has to be a
way to geo-synchronize the information back to the service. The original OWS Context had to include information on how transactions can be done back to the service as
owc:operation and the GeoPackage has to inherit this information.
10.4 Packed OWSContext file
There is a risk that the use of direct context both referenced or embedded starts to grow, resulting in files with many external elements or in large OWS Context files. To develop
a way to include the OWS Context document and the referenced direct content in a single file could be useful. One possibility could be to adopt the GeoPackage to do that, but
another more direct approach is to use ZIP strategies such as the ones used by the ISO Open Packaging Conventions OPC standard ISOIEC 29500-2:2008 - Information
technology -- Document description and processing languages -- Office Open XML File Formats -- Part 2: Open Packaging Conventions, ISO.
10.5 JSON encoding
