gws.plugin.ows_client.wms.provider

WMS provider.

References.

  • OGC 01-068r3: WMS 1.1.1

  • OGC 06-042: WMS 1.3.0

see also https://docs.geoserver.org/latest/en/user/services/wms/reference.html

A note on layer order:

Internally we always list source layers topmost layer first, which corresponds to the layer tree display.

WMS capabilities are assumed to be top-first by default, for servers with bottom-first caps, set bottomFirst=True, in which case the capabilities parser will revert all layer lists.

The order of GetMap is always bottom first:

> A WMS shall render the requested layers by drawing the leftmost in the list bottommost, > the next one over that, and so on. (OGC 06-042, 7.3.3.3)

therefore when invoking GetMap, our layer lists should be reversed.

Source code: gws.plugin.ows_client.wms.provider

Module Contents

class gws.plugin.ows_client.wms.provider.Config(*args, **kwargs)

Bases: gws.base.ows.client.provider.Config

Object configuration.

bottomFirst: bool = False

true if layers are listed from bottom to top

class gws.plugin.ows_client.wms.provider.Object

Bases: gws.base.ows.client.provider.Object

OWS services Provider.

protocol
DEFAULT_GET_FEATURE_LIMIT = 100
configure()

Configuration hook.

get_features(search, source_layers)
gws.plugin.ows_client.wms.provider.get_for(obj: gws.Node) → Object