Netgis Server OGC Services UsageNetgis Server can provide data in many OGC standards in this section, how to reach the data is described which is presented in the WMS, WMS, WFS, CAT, WCS standard.
WFS( Web Feature Service ) Document
Three types of queries are used in WFS queries.
GetCapabilities: Capabilities of WFS server and table information installed on server are received with this query.
DescribeFeatureType: Information related to the required table can be received with this query.
GetFeature: Data can be received from the table depending on the required criteria with this query.
WFS-Transaction (WFS-T) : Web Feature Service provides query and attribute information. With WFS-T service, it is possible to create, delete and update the data provided with WFS. These operations depend on authorization.
All of these operations can be done through Netcad via WFS link of Netgis Server.
WMS (Web Map Service)
Two types of queries are used in WMS queries
GetCapabilities: With this query, the request for map presentation capabilities of the server is received and the request is met. As a result of the GetCapabilities request, the server sends an XML file containing the necessary information to the client.
GetMap: With this query, the request is received and the details or picture map is presented to meet the request. When performing a GetMap request, the client can determine the information that it wants to appear on the map.
CAT CSW (Catalog Services for the Web)
CSW is a catalog service.
Catalog services provide meteadata issuance and querying capabilities.
This metadata can be related to spatial data, services and associated objects.
Catalog services should support contacting and researching resources within an information network.
It has 4 types of request (function):
GetCapabilities: It is a Get request that shows the capabilities of the server. In response to this request, an XML document showing the capabilities of the server is sent.
DescribeRecord: It is a Post request used to get information about the records found in the server. In response to this request, an XML document containing the records in the server is sent.
GetRecordById: It is a Get request that allows the records in the server to be queried from the IDs. In response to this request, the corresponding record is sent as an XML document.
GetRecords: It is a Post request that allows querying the catalog records contained in the server. In response to this request, the records that meet the criteria are sent as an XML document.
GetCapabilities, GetRecordById are GET, DescribeRecord, GetRecords are POST requests.
Three types of queries are used in WCS queries.