Ah, Thanks Etienne ok. It is clear in the source indeed:
https://github.com/qgis/QGIS/blob/master/src/core/qgscoordinatetransform.h#L75 * \note Not available in Python bindings. Beautifull docs in the source by the way!!! What is plan/status to show this (also?) in the qgis.org/api docs? I know there has been talk about it. Would be a shame to show this very helpful documentation (thanks to the writers) only in code? Regards, Richard On 22-12-17 08:55, Etienne Trimaille wrote: > Hi, > > I had the same problem. > > I looked in the source, this constructor is not available anymore in > Python Bindings: > https://github.com/qgis/QGIS/blob/master/src/core/qgscoordinatetransform.h#L75 > > You need to give a QgsCoordinateTransformContext in the constructor: > > transform = QgsCoordinateTransform(crs, crs_4326, > QgsCoordinateTransformContext()) > > I hope it's the right way to do it. > But I guess, like you and me, a lot of users will wonder the same > question about this new parameter and how to configure it so it would be > nice to provide some snippet or to update the QGIS Cookbook. > > Regards > Etienne > > > > 2017-12-22 8:44 GMT+01:00 Richard Duivenvoorde <rdmaili...@duif.net > <mailto:rdmaili...@duif.net>>: > > Hi Devs, > > since ages, I use like the following to create/get 2 > QgsCoordinateReferenceSystem's , then create a QgsCoordinateTransform > from those and transform geoms or points: > > crs = iface.mapCanvas().mapSettings().destinationCrs() > print(type(crs)) > print(crs.srsid()) > print(crs.toWkt()) > > crs2 = QgsCoordinateReferenceSystem() > crs2.createFromId(4326) > print(type(crs2)) > print(crs2.srsid()) > print(crs2.toWkt()) > > crsTransform = QgsCoordinateTransform(crs2, crs) > > But since some time (test in python console): > > Traceback (most recent call last): > File "/usr/lib/python3.6/code.py", line 91, in runcode > exec(code, self.locals) > File "<input>", line 1, in <module> > File "<string>", line 10, in <module> > TypeError: QgsCoordinateTransform(): arguments did not match any > overloaded call: > overload 1: too many arguments > overload 2: not enough arguments > overload 3: not enough arguments > overload 4: not enough arguments > overload 5: argument 1 has unexpected type > 'QgsCoordinateReferenceSystem' > > While the api > > > https://qgis.org/api/classQgsCoordinateTransform.html#a8c036726885d51e9fdfe1478a063dfcd > > <https://qgis.org/api/classQgsCoordinateTransform.html#a8c036726885d51e9fdfe1478a063dfcd> > > still notes this constructor? > > Do I miss info? Or is something wrong with my sip stuff? > > Regards, > > Richard Duivenvoorde > > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org <mailto:QGIS-Developer@lists.osgeo.org> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > <https://lists.osgeo.org/mailman/listinfo/qgis-developer> > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer > <https://lists.osgeo.org/mailman/listinfo/qgis-developer> > > > > > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer > _______________________________________________ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer