def toMapLayer(self):
from qgis.core import QgsRasterLayer, QgsContrastEnhancement, QgsDataSourceUri, QgsCredentials
rl = QgsRasterLayer(self.gdalUri(), self.name)
if not rl.isValid():
err = rl.error().summary()
uri = QgsDataSourceUri(self.database().uri())
conninfo = uri.connectionInfo(False)
username = uri.username()
password = uri.password()
for i in range(3):
(ok, username, password) = QgsCredentials.instance().get(
conninfo, username, password, err)
if ok:
uri.setUsername(username)
uri.setPassword(password)
rl = QgsRasterLayer(self.gdalUri(uri), self.name)
if rl.isValid():
break
if rl.isValid():
rl.setContrastEnhancement(
QgsContrastEnhancement.StretchToMinimumMaximum)
return rl
def special_search(self, easter_code="isogeo"):
"""Make some special actions in certains cases.
:param str easter_code: easter egg label. Available values:
* isogeo: display Isogeo logo and zoom in our office location
* picasa: change QGS project title
"""
canvas = iface.mapCanvas()
if easter_code == "isogeo":
# WMS
wms_params = {"service": "WMS",
"version": "1.3.0",
"request": "GetMap",
"layers": "Isogeo:isogeo_logo",
"crs": "EPSG:3857",
"format": "image/png",
"styles": "isogeo_logo",
"url": "http://noisy.hq.isogeo.fr:6090/geoserver/Isogeo/ows?"
}
wms_uri = unquote(urlencode(wms_params))
wms_lyr = QgsRasterLayer(wms_uri, u"Ici c'est Isogeo !", "wms")
if wms_lyr.isValid:
QgsMapLayerRegistry.instance().addMapLayer(wms_lyr)
logger.info("Isogeo easter egg used and WMS displayed!")
else:
logger.error("WMS layer failed: {}"
.format(wms_lyr.error().message()))
# WFS
uri = QgsDataSourceURI()
uri.setParam("url", "http://noisy.hq.isogeo.fr:6090/geoserver/Isogeo/ows?")
uri.setParam("service", "WFS")
uri.setParam("version", "1.1.0")
uri.setParam("typename", "Isogeo:isogeo_logo")
uri.setParam("srsname", "EPSG:3857")
uri.setParam("restrictToRequestBBOX", "0")
wfs_uri = uri.uri()
wfs_lyr = QgsVectorLayer(wfs_uri, u"Ici c'est Isogeo !", "WFS")
if wfs_lyr.isValid:
wfs_style = path.join(path.dirname(path.realpath(__file__)),
"isogeo.qml")
wfs_lyr.loadNamedStyle(wfs_style)
QgsMapLayerRegistry.instance().addMapLayer(wfs_lyr)
canvas.setExtent(wfs_lyr.extent())
logger.debug("Isogeo easter egg used")
else:
logger.error("Esater egg - WFS layer failed: {}"
.format(wfs_lyr.error().message()))
elif easter_code == "picasa":
project = QgsProject.instance()
project.setTitle(u"Isogeo, le Picasa de l'information géographique")
logger.debug("Picasa easter egg used")
else:
pass
# ending method
return
def toMapLayer(self):
from qgis.core import QgsRasterLayer, QgsContrastEnhancement, QgsDataSourceURI, QgsCredentials
rl = QgsRasterLayer(self.gdalUri(), self.name)
if not rl.isValid():
err = rl.error().summary()
uri = QgsDataSourceURI(self.database().uri())
conninfo = uri.connectionInfo(False)
username = uri.username()
password = uri.password()
for i in range(3):
(ok, username, password) = QgsCredentials.instance().get(conninfo, username, password, err)
if ok:
uri.setUsername(username)
uri.setPassword(password)
rl = QgsRasterLayer(self.gdalUri(uri), self.name)
if rl.isValid():
break
if rl.isValid():
rl.setContrastEnhancement(QgsContrastEnhancement.StretchToMinimumMaximum)
return rl
uri_dpi = "dpiMode=7"
uri_style = "style="
# URI construction
wms_url_complete = uri_url + uri_separator.join(
(uri_service, uri_version, uri_request, uri_username, uri_password,
uri_format, uri_layers, uri_crs, uri_style, uri_dpi))
print(wms_url_complete)
rlayer = QgsRasterLayer(wms_url_complete, 'norther', 'wms')
if rlayer.isValid():
pass
else:
print(rlayer.error().message())
QgsMapLayerRegistry.instance().addMapLayer(rlayer)
### With QgsDatSourceURI
uri = QgsDataSourceURI()
uri.setParam('url', 'http://localhost:8080/geoserver/wms?')
uri.setParam("layers", "ESIPE_IG3:Camera_WGS84")
uri.setParam("service", "WMS")
uri.setParam("request", "GetMap")
uri.setParam("version", "version%3D1.3.0%26")
uri_layer = QgsRasterLayer(str(uri.encodedUri()), 'WMSlayer', 'wms')
if uri_layer.isValid():
pass
def addButtonPressed(self):
a = self.dlg.layerTree.selectedIndexes()
lyr = a[0].data(Qt.UserRole)
if lyr is None:
log("lyr is none")
return
#get threshold
value = self.dlg.threshold1_value.value()
args = lyr.wmtsArgs()
email = None
password = None
if self.settings.contains("password"):
password = self.settings.value("password")
else:
log("Error adding layer: no password.")
return
if self.settings.contains("email"):
email = self.settings.value("email")
else:
log("Error adding layer: no email.")
return
args['login'] = email
args['request'] = 'GetCapabilities'
args['password'] = password
#parse the crs from urn:ogc:def:crs:EPSG::3857 to EPSG:3857
qcrs = QgsCoordinateReferenceSystem()
qcrs.createFromOgcWmsCrs(lyr.crs)
crs = qcrs.authid()
log("QGIS CRS is %s" % crs)
url = self.wmtsGetCapabilitiesUrl()
if url is None:
log("AddButtonPressed: No url.")
return
#TODO, ideally extraTileArgs should be added here but backend cannot handle them whey they are encoded.
# url.addQueryItem("extraTileArgs","threshold=%s"%value)
qgisArgs = {
'contextualWMSLegend':
0,
'crs':
crs,
'dpimode':
7,
'format':
args['format'],
'layers':
args['layer'],
'styles':
args['style'],
'tileMatrixSet':
args['tileMatrixSet'],
'url':
unicode(url.toEncoded(), "utf-8") +
u'&extraTileArgs=threshold=%g' % value
}
log("QgsRasterLayer: %s" % qgisArgs)
qgisURI = urllib.urlencode(qgisArgs)
if (len(self.wmts.tiletypes[lyr.contentType].thresholds) > 0):
tt = self.wmts.tiletypes[lyr.contentType]
name = "%s%s - %s" % (value, tt.unit, lyr.simpleTitle)
else:
name = lyr.simpleTitle
qgis_wmts_lyr_manual = QgsRasterLayer(qgisURI, name, 'wms')
if qgis_wmts_lyr_manual.isValid():
QgsMapLayerRegistry.instance().addMapLayer(qgis_wmts_lyr_manual)
else:
log(qgis_wmts_lyr_manual.error().message())
QMessageBox.warning(
self.dlg, "SCALGO Live Plugin", "Error adding layer %s" %
qgis_wmts_lyr_manual.error().message(), QMessageBox.Close,
QMessageBox.Close)
