GetFeatureInfo Request

R

Request version.

R

Request name.

Ruquests the GetFeatureInfo operation, and the request name should be set as "GetFeatureInfo".

LAYERS=layer_list

R

As GetMap.

O

As GetMap.

When querying with this parameter, it supports returning a response body in application/geojson format. The response body contains the LayerName, which is the title in the capability document obtained by the GetCapabilities operation.

Please note: This parameter and the layerDefs parameter must selected one, and can also be set at the same time and will take effect at the same time.

R

As GetMap.

R

As GetMap.

R

Comma-separated list of one or more layers to be queried.

INFO_FORMAT=output_format

O

Return format of feature information (MIME type).

Must be application/vnd.ogc.wms_xml.

O

Number of features about which to return information (default=1).

The required X and Y parameters indicate a point of interest on the map. X and Y identify a single point within the borders of the WIDTH and HEIGHT parameters of the embedded GetMap request. The origin is set to (0,0) centered in the pixel at the upper left corner; X increases to the right and Y increases downward. If query results are smaller than the value of user-specified number, doubles the search radius and continues to search; if the number of query results satisfies the feature number that users require to return, returns the results, or continues to increase the radius. When the search radius reaches 8 times of the initial search radius, ends the query and returns the query results, then goes into the query of next layer.

The query order of layers is consistent with the order in the list of layers to be queried.

R

X coordinate in pixels of feature (measured from upper left corner=0)

R

Y coordinate in pixels of feature (measured from upper left corner=0)

O

The format in which exceptions are to be reported by the WMS (default=application/vnd.ogc.se_xml).

O

Attribute filtering, the syntax is  {<layer1>:<layerDefs1>,<layer2>:<layerDefs2>}, the filter conditions of different layers are separated by ','.

Among them, the value of <layer1>,<layer2> is the value of the layer attribute Name in the capability document; the supported comparison operations inclue =, <>, >, >=, <, <=; the supported string matching operations include BETWEEN AND, IN, like; the supported logical relationship judgement includes AND, OR, NOT. An example is as follows:

layerDefs={"0.11":"Shape_Area <500 and OBJECTID>100","0.12": "STATE_NAME LIKE‘N%'"}   

When querying with this parameter, it supports returning a response body in application/geojson format. The response body contains the LayerName.

Please note: This parameter and the layerDefs parameter must selected one, and can also be set at the same time and will take effect at the same time. This parameter only takes effect for vector layers.

O

Optional experimental parameters.

SuperMap has not realized this functionality at present.