ANNEX IIIVIEW SERVICES
PART AOperations
1.LIST OF OPERATIONS
In order to be in conformity with Article 11(1) of Directive 2007/2/EC, the View Service shall provide the operations listed in Table 1 of this Annex.
Operation | Role |
---|---|
Get View Service Metadata | Provides all necessary information about the service and describes service capabilities |
Get Map | Returns a map containing the geographic and thematic information coming from the available spatial datasets. This map is an image spatially referenced |
In order to be in conformity with Article 12 of Directive 2007/2/EC, the view Service shall support the operations listed in Table 2 of this Annex.
Operation | Role |
---|---|
Link View Service | Allows a Public Authority or a Third Party to declare a view Service for the viewing of its resources through the Member State View Service while maintaining the viewing capability at the Public Authority or the Third party location |
The request and response parameters of each operation complete the description of each operation and form an integral part of the View Service technical specification.
2.GET VIEW SERVICE METADATA OPERATION
2.1.Get View Service Metadata Request
2.1.1.Get View Service Metadata Request parameters
The Get View Service Metadata Request parameter indicates the natural language requested for the content of the Get View Service Metadata Response.
2.2.Get View Service Metadata Response parameters
The Get View Service Metadata Response shall contain the following set of parameters:
View Service Metadata,
Operations Metadata,
Languages,
Layers Metadata.
2.2.1.View Service Metadata parameters
The View Service Metadata parameters shall at least contain the INSPIRE metadata elements of the View Service.
2.2.2.Operations Metadata parameters
The Operation Metadata parameter describes the operations of the View Service and shall contain as a minimum a description of the data exchanged and the network address of each operation.
2.2.3.Languages parameters
Two language parameters shall be provided:
the Response Language parameter indicating the natural language used in the Get Service Metadata Response parameters,
the Supported Languages parameter containing the list of the natural languages supported by this view service.
2.2.4.Layers Metadata parameters
The metadata elements listed in Table 3 shall be provided for each layer.
Metadata elements | Description |
---|---|
Resource Title | The title of the layer, used for human communication, for presentation of the layer, e.g. in a menu |
Resource Abstract | Layer abstract |
Keyword | Additional keywords |
Geographic Bounding Box | The minimum bounding rectangle in all supported Coordinate Reference Systems of the area covered by the layer |
Unique Resource Identifier | The Unique Resource Identifier of the resource used to create the layer |
The layer specific parameters listed in Table 4 shall be provided for each layer.
Parameter | Description |
---|---|
Name | Harmonised name of the layer |
Coordinate Reference Systems | List of Coordinate Reference Systems in which the layer is available |
Styles | List of the rendering styles available for the layer. |
A style shall be composed of a title and a unique identifier | |
Legend URL | Location of the legend for each style, language and dimension pairs |
Dimension Pairs | Indicates the supported two dimensional axis pairs for multi-dimensional spatial data sets and spatial data sets series |
3.GET MAP OPERATION
3.1.Get Map Request
3.1.1.Get Map Request parameters
The Get Map Request parameters listed in Table 5 shall be provided
Parameter | Description |
---|---|
Layers | List of layer names to be included in the map |
Styles | List of style to be used for each layer |
Coordinate Reference System | Coordinate Reference System of the map |
Bounding box | The 4 corner Coordinate of the two dimensional map for the selected Dimension pair and in the selected Coordinate Reference System |
Image width | The map width in pixels |
Image height | The map height in pixels |
Image format | The output image format |
Language | language to be used for the response |
Dimension pair | The two dimensional axis to be used for the map. For example, a geographical dimension and time |
4.LINK VIEW SERVICE OPERATION
4.1.Link View Service Request
4.1.1.Link View Service Request parameter
The Link View Service parameter shall provide all information about the Public Authority’s or Third Party’s View Service compliant with this regulation, enabling the Member State View Service to get a map from the Public Authority’s or Third Party’s View Service and to collate it with other maps.