Hi,
I want to read a project file and get the extent when the project was saved.
In QGIS,
iface.mapCanvas().extent()
does exactly what I want. But I want to run a script outside QGIS.
I've already tried:
QgsApplication.setPrefixPath("/usr", True)
qgs = QgsApplication([], False)
# Load providers
qgs.initQgis()
project = QgsProject.instance()
project.read(projectpath)
print(project.crs().authid())
root = project.layerTreeRoot()
canvas = QgsMapCanvas()
bridge = QgsLayerTreeMapCanvasBridge(root, canvas)
print(canvas.extent())
print(canvas.fullExtent())
print(canvas.mapSettings().extent())
print(canvas.mapSettings().fullExtent())
print(canvas.mapSettings().visibleExtent())
All of these extents are much wider than the canvas extent when the
project was saved.
The extent is there, in the project file. I can read it as XML and get
the extent.
<mapcanvas annotationsVisible="1" name="theMapCanvas">
<units>meters</units>
<extent>
<xmin>-22630.49319827121144044</xmin>
<ymin>208610.29666395089589059</ymin>
<xmax>-22314.35674389618725399</xmax>
<ymax>208889.62023152899928391</ymax>
</extent>
But I would like to use the API.
Thanks in advance,
Jorge
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