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I want to zoom into the current active QGIS canvas from a standalone python script.

I tried the following but it doesn't impact the current QGIS canvas:

import qgis.utils
canvas = qgis.utils.iface.mapCanvas()
canvas.zoomIn()

Can I modify the QGIS app from a standalone python script (not from the QGIS Python console)? If so, how do I do that?

5
  • Purely a guess but perhaps try using from qgis.gui import QgsMapCanvas?
    – Joseph
    Jan 20, 2015 at 11:21
  • Doesn't do anything either.
    – ustroetz
    Jan 20, 2015 at 12:32
  • what kind of standalone script? Something that inside a QGIS session?
    – Nathan W
    Jan 20, 2015 at 12:53
  • I have a running QGIS session and independently from that a Python script (not the Python console).
    – ustroetz
    Jan 20, 2015 at 12:56
  • 1
    Very similar question: gis.stackexchange.com/questions/77797/… Jan 24, 2015 at 4:14

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