Hi otto, A super wild guess: whats the value of IdentifyFormat in your call?
Hth, Marc Otto Dassau <[email protected]> schrieb: >Hi, > >I want to update a plugin from 1.8 to QGIS 2.0 and it throws following >error: > >Traceback (most recent call last): >File > >"/home/dassau/.qgis2/python/plugins/weibullanalyse/weibullanalysedialog.py", > >line 447, in printValue self.showValues() File > >"/home/dassau/.qgis2/python/plugins/weibullanalyse/weibullanalysedialog.py", > >line 453, in showValues self.plot() File > >"/home/dassau/.qgis2/python/plugins/weibullanalyse/weibullanalysedialog.py", > >line 514, in plot w = >float(self.sampleRaster(self.InRastW.currentText(), >self.xCoord, self.yCoord))/10 File > >"/home/dassau/.qgis2/python/plugins/weibullanalyse/weibullanalysedialog.py", > >line 299, in sampleRaster return self.sampleRaster20(layer, x, y) File > >"/home/dassau/.qgis2/python/plugins/weibullanalyse/weibullanalysedialog.py", > >line 284, in sampleRaster20 success, data = >layer.dataProvider().identify(QgsPoint(x,y)) > >TypeError: >QgsRasterDataProvider.identify(QgsPoint, QgsRaster.IdentifyFormat, >QgsRectangle theExtent=QgsRectangle(), int theWidth=0, int >theHeight=0): >not enough arguments > >I found at >http://hub.qgis.org/wiki/quantum-gis/API_changes_for_version_20 >the section QgsRasterDataProvider which should fit. And the Method, >where I >assume the error occurs should be this > ># get value at mouse position QGIS <= 1.8 (working for 1.8) >def sampleRaster18(self, layer, x, y): > success, data = layer.identify(QgsPoint(x,y)) > for band, value in data.items(): > return value > >now what I tried but doesn't work (see error above) > ># get value at mouse position QGIS >= 2.0 (not working yet :() >def sampleRaster20(self, layer, x, y): > success, data = layer.dataProvider().identify(QgsPoint(x,y)) > for band, value in data.items(): > return value > >my problem is, that I don't understand how to implement in >sampleRaster20 >the new method from the API_changes_for_version_20 website which says: > >QMap<int, QVariant> identify( const QgsPoint & thePoint, IdentifyFormat >theFormat, const QgsRectangle &theExtent = QgsRectangle(), int theWidth >= >0, int theHeight = 0 ) > >can anybody help? > >Thanks > >Otto >_______________________________________________ >Qgis-developer mailing list >[email protected] >http://lists.osgeo.org/mailman/listinfo/qgis-developer
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