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<p class="MsoNormal">So I found that I could use a selectAll() method on the layer directly rather than use the processing tool, but when I call the trigger on the rotate action it unselects all the features and only rotates the inner most one.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="mso-ligatures:none">From:</span></b><span style="mso-ligatures:none"> QGIS-Developer <qgis-developer-bounces@lists.osgeo.org>
<b>On Behalf Of </b>Catania, Luke A ERDC-RDE-GRL-VA CIV via QGIS-Developer<br>
<b>Sent:</b> Monday, August 5, 2024 1:22 PM<br>
<b>To:</b> Jacky Volpes <jacky.volpes@oslandia.com>; 'qgis-developer' <qgis-developer@lists.osgeo.org><br>
<b>Subject:</b> Re: [QGIS-Developer] Rotating selected features programmatically<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Well. Now for some reason my select by expression tool is not selecting any features, so need to figure out why that is happening before implementing this change. I did not make any changes that I can see that would have caused this.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="mso-ligatures:none">From:</span></b><span style="mso-ligatures:none"> Jacky Volpes <<a href="mailto:jacky.volpes@oslandia.com">jacky.volpes@oslandia.com</a>>
<br>
<b>Sent:</b> Monday, August 5, 2024 5:14 AM<br>
<b>To:</b> Catania, Luke A ERDC-RDE-GRL-VA CIV <<a href="mailto:Luke.A.Catania@erdc.dren.mil">Luke.A.Catania@erdc.dren.mil</a>>; 'qgis-developer' <<a href="mailto:qgis-developer@lists.osgeo.org">qgis-developer@lists.osgeo.org</a>><br>
<b>Subject:</b> Re: [QGIS-Developer] Rotating selected features programmatically<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Ubuntu",serif">Hi Luke,<br>
<br>
My guess is that when more than one feature is selected, and the rotation is ended, geometryChanged signal is emitted for each rotated feature.<br>
<br>
element_layer_rotated() is run when the first geometryChanged signal is emitted, and is disconnected, and the layer is saved, and the other geometryChanged signals don't trigger anything.<br>
<br>
NB: self.vector_layer.editBuffer().geometryChanged.disconnect() is risky, if other slots are connected, prefer self.vector_layer.editBuffer().geometryChanged.disconnect(self.element_layer_rotated)</span><br>
<span style="font-family:"Ubuntu",serif"><br>
Regards,</span><span style="mso-ligatures:none"><o:p></o:p></span></p>
<pre>--<o:p></o:p></pre>
<pre>Jacky Volpes<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Ingénieur développeur SIG - Oslandia<o:p></o:p></pre>
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<p class="MsoNormal">Le 01/08/2024 à 20:29, Catania, Luke A ERDC-RDE-GRL-VA CIV a écrit :<o:p></o:p></p>
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<p class="MsoNormal">def rotateFeature(self):<o:p></o:p></p>
<p class="MsoNormal"> """Find the rotate feature action in QGIS toolbar and trigger it so the user can rotate the element.<o:p></o:p></p>
<p class="MsoNormal"> """<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> # We want to detect when the rotation is complete with a geometryChanged signal so we can commit the changes and<o:p></o:p></p>
<p class="MsoNormal"> # end the edit session.<o:p></o:p></p>
<p class="MsoNormal"> self.vector_layer.editBuffer().geometryChanged.connect(self.element_layer_rotated)<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> # Get all actions so we can search for the mActionRotateFeature action.<o:p></o:p></p>
<p class="MsoNormal"> actions = iface.mainWindow().findChildren(QAction)<o:p></o:p></p>
<p class="MsoNormal"> action = [x for x in actions if x.objectName()=='mActionRotateFeature'][0]<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> expression = '"Element_Nb" = '<o:p></o:p></p>
<p class="MsoNormal"> expression = expression + "\'" + f'{self.element_number}' + "\'"<o:p></o:p></p>
<p class="MsoNormal"> QgsMessageLog.logMessage(f"expression: {expression}", "StandoffLayers", Qgis.Info)<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> processing.run("qgis:selectbyexpression", <o:p></o:p></p>
<p class="MsoNormal"> {'INPUT':self.vector_layer,<o:p></o:p></p>
<p class="MsoNormal"> 'EXPRESSION': expression,<o:p></o:p></p>
<p class="MsoNormal"> 'METHOD':0<o:p></o:p></p>
<p class="MsoNormal"> }<o:p></o:p></p>
<p class="MsoNormal"> )<o:p></o:p></p>
<p class="MsoNormal"> # Inititates rotate feature action allowing to select a snap to value.<o:p></o:p></p>
<p class="MsoNormal"> action.trigger()<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> QgsMessageLog.logMessage(f"Rotate Feature Action Triggered", "ElementPlacementTool", Qgis.Info)<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">def element_layer_rotated(self):<o:p></o:p></p>
<p class="MsoNormal"> """When the rotate action is triggered it seems to ignore the ElementPlacementTool events, so in order to end the edit session<o:p></o:p></p>
<p class="MsoNormal"> we need to detect a geometryChanged event after the rotation is complete.<o:p></o:p></p>
<p class="MsoNormal"> """<o:p></o:p></p>
<p class="MsoNormal"> QgsMessageLog.logMessage(f"Element Layer Rotated: {self.vector_layer.name()}", "ElementPlacementTool", Qgis.Info)<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> # Disconnect from the signal so we can just commit the changes.<o:p></o:p></p>
<p class="MsoNormal"> self.vector_layer.editBuffer().geometryChanged.disconnect()<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> # Save changes and end edit mode<o:p></o:p></p>
<p class="MsoNormal"> self.vector_layer.commitChanges()<o:p></o:p></p>
<p class="MsoNormal"> self.vector_layer.endEditCommand()<o:p></o:p></p>
<p class="MsoNormal"> self.deactivate()<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><b><span style="mso-ligatures:none">From:</span></b><span style="mso-ligatures:none"> Jacky Volpes
<a href="mailto:jacky.volpes@oslandia.com"><jacky.volpes@oslandia.com></a> <br>
<b>Sent:</b> Thursday, August 1, 2024 8:26 AM<br>
<b>To:</b> Catania, Luke A ERDC-RDE-GRL-VA CIV <a href="mailto:Luke.A.Catania@erdc.dren.mil">
<Luke.A.Catania@erdc.dren.mil></a>; 'qgis-developer' <a href="mailto:qgis-developer@lists.osgeo.org">
<qgis-developer@lists.osgeo.org></a><br>
<b>Subject:</b> Re: [QGIS-Developer] Rotating selected features programmatically</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Ubuntu",serif">Hi Luke,<br>
<br>
Please provide a PyQGIS code snippet to reproduce. It will be more convenient to comment and suggest modifications.<br>
Thanks,<br>
<br>
</span><o:p></o:p></p>
<pre>--<o:p></o:p></pre>
<pre>Jacky Volpes<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Ingénieur développeur SIG - Oslandia<o:p></o:p></pre>
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<p class="MsoNormal"><br>
Le 26/07/2024 à 22:06, Catania, Luke A ERDC-RDE-GRL-VA CIV via QGIS-Developer a écrit :<o:p></o:p></p>
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<p class="MsoNormal">I am using the select by expression tool through python to select my features and then I trigger rotation through python I see both selected features rotating, but when I click to end the rotation, it only rotated one of the features and
left the other one as is. If I do this through the QGIS using the selection by expression in the selection toolbar and the rotate in the advanced digitizing tool bar rotating both features works fine.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Any Ideas?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Luke<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="mso-ligatures:none"><br>
<br>
</span><o:p></o:p></p>
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