Javascript API 7.x

Class: WFS

bu.source. WFS

Layer source for BlomURBEX WFS layers. This source inherits from ol.source.Vector adding the default configuration needed.

new WFS( [opt_options])

Parameters:
Name Type Argument Description
opt_options bu.source.WFSOptions <optional>

Options.
Source:
bu/source/wfs.js

Extends

  • ol.source.Vector

Methods

clear( [opt_fast])

Remove all features from the source.

Parameters:
Name Type Argument Description
opt_fast boolean <optional>

Skip dispatching of removefeature events.
Source:
bu/source/wfs.js

<abstract> getDefaultUrlFunction(all)

Return the default UrlFunction.

Parameters:
Name Type Description
all boolean

If all the feature types must be returned or only the features using the featureTypesForResolutions option.
Source:
bu/source/wfs.js
Returns:
Type
function

getFeatureLoader(urlFunction, format)

Returns the feature loader for the given urlFunction and format.

Parameters:
Name Type Description
urlFunction string | ol.FeatureUrlFunction

Feature URL service.
format ol.format.Feature

Feature format.
Source:
bu/source/wfs.js
Returns:

The feature loader.

Type
ol.FeatureLoader

getFeatureTypesForResolutions()

Returns the array of objects containing the list of feature types to be requested and their resolutions.

Source:
bu/source/wfs.js
Returns:
Type
Array.<bu.FeatureTypeResolution>

getUniqueFeatureTypes()

Return the different feature types.

Source:
bu/source/wfs.js
Returns:

The feature type list.

Type
Array.<string>

loadAllFeatures(extent, projection)

This is a new method to load features that is only useful when this source is not in a layer inside a bu.ortho.Viewer. An ortho viewer automatically calls loadFeatures when the layer is added to the viewer and it changes extent and/or resolution. For the rest of the viewers, as a bu.oblique.Viewer or a bu.street.Viewer, we can call this method to load all the needed feautures just in one call.

Parameters:
Name Type Description
extent ol.Extent

Extent.
projection ol.proj.Projection

Projection.
Source:
bu/source/wfs.js

loadFeatures(extent, resolution, projection)

This is a overriden of the ol.source.Vector#loadFeatures method. Here each feature type mantains a different Rtree for the extents. This way the source do not find a extent as already loaded when a different feature type has been requested. The names of the feature types can be set using the featureTypesForResolutions option in the constructor of this class. With this option both the names of the feature types and the resolutions at which show that feature types are set.

Parameters:
Name Type Description
extent ol.Extent

Extent.
resolution number

Resolution.
projection ol.proj.Projection

Projection.
Source:
bu/source/wfs.js

resolutionToFeatureType(resolution)

Return the correct feature type name for a given resolution.

Parameters:
Name Type Description
resolution number

Resolution.
Source:
bu/source/wfs.js
Returns:

Feature type name.

Type
string