MapInfo Spatial Server Web Map Service - Product Documentation ...
MapInfo Spatial Server Web Map Service - Product Documentation ...
MapInfo Spatial Server Web Map Service - Product Documentation ...
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Getting Information About <strong>Map</strong> Features<br />
Once a Get<strong>Map</strong> request has been successfully completed the user may want further information about<br />
the features included in the map. Use the GetFeatureInfo request to get this further information from a<br />
server. A GetFeatureInfo request returns information regarding the layers in the map and the queryable<br />
attributes of each layer. This operation is optional. If GetFeatureInfo is employed, it must be issued after<br />
a Get<strong>Map</strong> request is sent, as the X/Y pixel coordinate of a point on that map is a required input of a<br />
GetFeatureInfo request. Refer to the <strong>Web</strong> <strong>Map</strong>ping <strong>Service</strong> OGC Specification for more information<br />
about this capability (http://www.opengeospatial.org/standards/).<br />
Inputs and Behaviors<br />
The following table lists the possible GetFeatureInfo request inputs.<br />
Input<br />
VERSION=version<br />
REQUEST=GetFeatureInfo<br />
<br />
QUERY_LAYERS=layer_list<br />
Required<br />
Yes<br />
Yes<br />
Yes<br />
Yes<br />
<strong><strong>Map</strong>Info</strong> <strong>Spatial</strong> <strong>Server</strong> <strong>Web</strong> <strong>Map</strong> <strong>Service</strong><br />
Description<br />
Chapter 3: <strong>Web</strong> <strong>Map</strong> <strong>Service</strong> Capabilities<br />
Request version. <strong><strong>Map</strong>Info</strong> <strong>Spatial</strong> <strong>Server</strong> WMS supports both<br />
version 1.1.1 and 1.3.0 of the OGC specification.<br />
Request name. For a GetFeatureInfo request this is always<br />
GetFeatureInfo.<br />
Partial copy of the Get<strong>Map</strong> request parameters that generated<br />
the map for which information is desired. The spatial reference<br />
system, bounding box, width, height, and layers of the Get<strong>Map</strong><br />
request are required parameters. See the sample request<br />
below.<br />
Comma-separated list of one or more layers to be queried.<br />
You do not need to include every layer included in the initial<br />
Get<strong>Map</strong> request.<br />
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