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