Add WMS-T (time) support

[qgib]

Author Name: Anita Graser (@anitagraser)
Original Redmine Issue: 13085

Redmine category:web_services_clients/wms

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Add support for WMS with time support to Add WMS layer.

http://docs.geoserver.org/latest/en/user/services/wms/time.html

http://mapserver.org/ogc/wms_time.html

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Related issue(s): #17507 (relates)
Redmine related issue(s): 8809

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[qgib]

Author Name: Anita Graser (@anitagraser)

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• subject was changed from Add WMS-T support to Add WMS-T (time) support

[qgib]

Author Name: David Forrest (David Forrest)

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QGIS is currently able to access a WMST service as a plain WMS serivice by awkwardly embedding the TIME=????& parameter in the URL and not letting the system use the URIs from the GetCapabilities document. For an example see http://gis.stackexchange.com/questions/34667/does-qgis-have-wms-t-wms-with-time-support/153709#153709

Maybe one way to make this improvement easier would be making the Layer/Properties/General/Layer Source an editable field so a user could manually update the optional parameters in the URL. If editing a layer's WMS service prefix string was programmatically accessible, then a plugin could perhaps be written to get the time and other optional dimensions from the capabilities document, and then provide UI tools to modify or control them.

As a sample use-case, the WMS-T service at http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r-t.cgi?TIME=2005-08-29T13:10:00Z&LAYERS=nexrad-n0r-wmst&TRANSPARENT=TRUE&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetCapabilities looks like it should have about 1 million rasters to play with.

[qgib]

Author Name: David Forrest (David Forrest)

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One can programmatically add and update a WMS-T layer like this:

urlWithParams = 'IgnoreGetFeatureInfoUrl=1&IgnoreGetMapUrl=1&contextualWMSLegend=0&crs=EPSG:3857&dpiMode=7&featureCount=10&format=image/png&layers=nexrad-n0r-wmst&styles=&url=http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r-t.cgi?TIME%3D2005-08-29T13:10:00Z%26LAYERS%3Dnexrad-n0r-wmst%26TRANSPARENT%3DTRUE%26VERSION%3D1.1.1%26'

urlWithParams2 = 'IgnoreGetFeatureInfoUrl=1&IgnoreGetMapUrl=1&contextualWMSLegend=0&crs=EPSG:3857&dpiMode=7&featureCount=10&format=image/png&layers=nexrad-n0r-wmst&styles=&url=http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r-t.cgi?TIME%3D2005-08-29T06:10:00Z%26LAYERS%3Dnexrad-n0r-wmst%26TRANSPARENT%3DTRUE%26VERSION%3D1.1.1%26'


rlayer = QgsRasterLayer(urlWithParams, 'radar WMST timeV2', 'wms')
QgsMapLayerRegistry.instance().addMapLayer(rlayer)

#update to different time
rlayer.dataProvider().setDataSourceUri(urlWithParams2)
rlayer.dataProvider().reloadData()
rlayer.triggerRepaint()

[qgib]

Author Name: Nicolas Boisteault (@nboisteault)

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Related issue #17507

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• easy_fix was configured as 0

[qgib]

Author Name: Anita Graser (@anitagraser)

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TimeManager implements browsing WMS-T layers but it only helps for visualizations. Missing TIME parameters cause GetFeatureInfo requests to fail - or more specifically - Geoserver will assume some default time value which is inconsistent with the currently visualized time in QGIS.

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• description was changed from Add support for WMS with time support to Add WMS layer.

http://docs.geoserver.org/latest/en/user/services/wms/time.html

http://mapserver.org/ogc/wms_time.html to Add support for WMS with time support to Add WMS layer.

http://docs.geoserver.org/latest/en/user/services/wms/time.html

http://mapserver.org/ogc/wms_time.html

[qgib]

Author Name: Nicolas Boisteault (@nboisteault)

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Issue still exists in QGIS 3.0.
Tests can be made with this http://sampleserver6.arcgisonline.com/arcgis/services/MultiDimensional_Sample/MapServer/WMSServer?request=GetCapabilities&service=WMS

[alexbruy]

Probably can be closed now as this functionality was added to master recently.