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&outputformat=application/+xmlįor other output formats, see the GetCapabilities request which returns the complete list of output formats available for each type of WFS request: Marine Regions data are available in a number of output formats, which are indicated at the end of the WFS request as: cql_filter=mrgid=3293&outputFormat=SHAPE-ZIPĪ more detailed description of using CQL filters can be found in the GeoServer manual. This example will return a shapefile of the Belgian Exclusive Economic Zone (MRGID 3293). Available attributes can be discovered using a DescribeFeatureType request. This filter can take into account (among others) geometry and attribute values.
Marine online download#
If you only want to download specific records of a layer, you can add a filter to the WFS request. The base link for performing a WFS request to Marine Regions is:Īll available layers in the Marine Regions download service can be requested using a getCapabilities request. Building a WFS query to get dataįor composing your own query, you need to combine different parts: The standard to construct a WFS GetCapabilities request, depending on the version:Īn example of a GetCapabilities request addressed to the Marine Regions download service:įeature type information (DescribeFeatureType)Ī DescribeFeatureType request returns a description of feature types supported by a WFS service.Īn example of a Marine Regions DescribeFeature request:Ī GetFeature request returns a selection of features from a data source including geometry and attribute values. The Marine Regions WFS service is accessible from the following endpoint:Ī GetCapabilities request generates a metadata document (xml) describing a WFS service provided by server as well as valid WFS operations and parameters.
Marine online full#
The full list of output formats supported can be found by performing a WFS GetCapabilities request. WFS supports a variety of WFS output formats (e.g. The basic operations are GetCapabilities, DescribeFeatureType, and GetFeature. WFS defines a standard for exchanging vector data by querying both the data structure and the source data.
Marine online how to#
How to do this on some of the most common platforms is explained in the manuals below:
Marine online software#
In order to study the provided data in more detail or add them as background images in maps, they can be loaded into GIS software or invoked using various programming languages. Using Web Map Services in GIS/programming languages are defined in the form of arguments.Įxample of a GetMap request that returns an image of the Exclusive Economic Zone of Belgium: The elements such as the data layer, region, projection, size of the returned image, image format, etc. Using the information given in the GetCapabilities request, the GetMap request returns an image of the requested data layer selected from all the available layers as defined in the XML document. The standard to construct a WMS GetCapabilities request, depending on the version:Īn example of a GetCapabilities request addressed to the Marine Regions view service: The response to a GetCapabilities request shall be an XML document containing metadata of the service (proposed layers, associated projections, author. The mandatory GetCapabilities operation allows WMS clients to retrieve service metadata from a server. The Marine Regions WMS service is accessible from the following endpoint: The WMS supports the GetCapabilities, GetMap and GetFeatureInfo operations as defined in the Open Geospatial Consortium (OGC) WMS standard. The response to the request is one or more geo-registered map images (returned as JPEG, PNG, etc) that can be displayed in a Geographic Information System (GIS) or in your own web application (OpenLayers, Leaflet.).
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A WMS request defines the geographic layer(s) and area of interest to be processed. The Web Map Service standard (WMS) provides a simple HTTP interface for requesting geo-registered map images from one or more distributed geospatial databases.