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<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><br>
I got an issue with SIP python bindings…<br>
I’m looking to loop over QgsVectorLayer features to convert geometries to mesh primitives (cells) …<br>
<br>
I had a first problem with the non-const (unexpected crash about SIP methods)<br>
</span><code><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E">for part in feature.geometry().parts():</span></code><span lang="EN-US" style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#24292E;background:white"><br>
that I solved using the const one<br>
</span><code><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E">for p in f.geometry().constParts():<o:p></o:p></span></code></p>
<p class="MsoNormal"><code><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"><o:p> </o:p></span></code></p>
<p class="MsoNormal"><span lang="EN-US">But now I’m facing a similar crash when trying to identify the symbol/category/legendKey of each feature<br>
(the aim is to add the legendKey as a cell attribute to link color/LUT between the mesh and vectorlayer)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I do it this way:<br>
</span><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E">layer.renderer().symbolForFeature(feature, context)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">But ends up with a :<br>
<br>
</span><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR">Crash ID: cb1c4f2b11cbd392a38c522a5ed1e194e060e4a0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR">Stack Trace<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR">QgsExpression::evaluate :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR">QgsCategorizedSymbolRenderer::valueForFeature :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR">QgsCategorizedSymbolRenderer::originalSymbolForFeature :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR">PyInit__core :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR">PyMethodDef_RawFastCallKeywords :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR">PyMethodDef_RawFastCallKeywords :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR">PyEval_EvalFrameDefault :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E;mso-fareast-language:FR">PyEval_EvalCodeWithName :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"></span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I opened an Issue here (not sure this is relevant):<br>
</span><a href="https://github.com/qgis/pyqgis/issues/68"><span lang="EN-US">Unexpected crash using: QgsFeatureRenderer.symbolForFeature() · Issue #68 · qgis/pyqgis (github.com)</span></a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks a lot<span lang="EN-US"><o:p></o:p></span></p>
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