[Qgis-developer] Learning to zoom with PyQGIS

[m roy]

Thanks Tom , got it

what i find confusing is

######################
# This below does not work

canvas = QgsMapCanvas()

canvas.zoomScale(10000)

######################
# This below does work
#######################

canvas = qgis.utils.iface.mapCanvas()

canvas.zoomScale(10000)


so there seems to be a difference between
"QgsMapCanvas" and "mapCanvas"

maybe because working into QGIS there already is
an existing QgsMapCanvas(); the map canvas istance
of QGIS itself, called mapCanvas() ?



Il 27/01/2016 15:47, Tom Chadwin ha scritto:
> Try searching for "zoom" on this page:
>
> http://qgis.org/api/classQgsMapCanvas.html
>
> That should get you some of the methods you require.
>
>
>
> --
> View this message in context: http://osgeo-org.1560.x6.nabble.com/Learning-to-zoom-with-PyQGIS-tp5247589p5247595.html
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