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<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Hi Andrea,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">I asked permission to share these coverage files with you and the company cannot do this because the data belongs to ESRI and we are only the users of the data.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">But I removed these files .idm and and .ind and everything is fine.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Thank you.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">I have one more observation.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">When I converted the data from coverage to shapefile using QGIS2.18 the geometries were simple parts. For example to extract the points from an arc layer I had to use arc.geometry().asPolyline()<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">The shapefiles were under a QGIS project (.qgs).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">When I open the QGIS project created with QGIS2.18 I got a message which notify me the project is an old version of QGIS and some conversion was done.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">When I ran some algorithm which tried to arc.geometry().asPolyline() I got this error.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Traceback (most recent call last):<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"> File "/usr/lib64/python3.9/code.py", line 90, in runcode<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"> exec(code, self.locals)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"> File "<input>", line 1, in <module><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">TypeError: MultiLineString geometry cannot be converted to a polyline. Only single line or curve types are permitted.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">So when I open QGIS 2.18 project something happened with the data and was transformed from LineString to MultiLineString.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Is this normal behaviour for QGIS 3 to convert the geometry type from single part to multiple parts?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Is any method to supress this transformation?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Marian<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Qgis-user <qgis-user-bounces@lists.osgeo.org>
<b>On Behalf Of </b>Andrea Giudiceandrea via Qgis-user<br>
<b>Sent:</b> July 25, 2022 5:12 AM<br>
<b>To:</b> qgis-user@lists.osgeo.org<br>
<b>Subject:</b> [EXT] Re: [Qgis-user] Filtering layer or selected features by attributes does not work for new added features in QGIS 3.22.8<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white">Tudorache, Marian Sun Jul 24 11:</span><span style="font-size:1.0pt;font-family:"Tahoma",sans-serif;color:white"></span><span style="font-size:1.0pt;color:white">14:</span><span style="font-size:1.0pt;font-family:"Tahoma",sans-serif;color:white"></span><span style="font-size:1.0pt;color:white">30
PDT 2022 How these .</span><span style="font-size:1.0pt;font-family:"Tahoma",sans-serif;color:white"></span><span style="font-size:1.0pt;color:white">idm and and .</span><span style="font-size:1.0pt;font-family:"Tahoma",sans-serif;color:white"></span><span style="font-size:1.0pt;color:white">ind
files were created? These files are created by reading ESRI coverage data used in an application under ArcInfo:</span><span style="font-size:1.0pt;font-family:"Tahoma",sans-serif;color:white"></span><span style="font-size:1.0pt;color:white">
<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:13.5pt;font-family:"Times New Roman",serif;color:black">Tudorache, Marian</span></b><span style="font-size:13.5pt;font-family:"Times New Roman",serif;color:black"><br>
</span><i><span style="font-size:11.0pt;color:black">Sun Jul 24 11:14:30 PDT 2022</span></i><span style="font-size:11.0pt">
<o:p></o:p></span></p>
<div class="MsoNormal" align="center" style="text-align:center"><span style="font-size:11.0pt">
<hr size="2" width="100%" noshade="" style="color:black" align="center">
</span></div>
<pre style="white-space:pre-wrap;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;text-align:start;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;word-spacing:0px"><span style="color:black">How these .idm and and .ind files were created?<o:p></o:p></span></pre>
<pre><span style="color:black">These files are created by reading ESRI coverage data used in an application under ArcInfo:<o:p></o:p></span></pre>
</blockquote>
<p class="MsoNormal"><span style="font-size:11.0pt"><br>
Hi Marian,<br>
could you share a link to a sample of such ESRI coverage data file for which the conversion to a Shapefile layer creates the .idm and and .ind attributes indexes sidecar files?<br>
<br>
<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<pre style="white-space:pre-wrap;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;text-align:start;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-thickness: initial;text-decoration-style: initial;text-decoration-color: initial;word-spacing:0px"><span style="color:black">Cab these file be recreated without knowing?<o:p></o:p></span></pre>
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<p class="MsoNormal"><span style="font-size:11.0pt"><br>
Looking at the QGIS code, it seems such attributes indexes sidecar files could be unknowingly created if the user uses the Shapefile layer in a join (via layer Property->Joins) enabling the "Create attribute index on join field" option.<br>
An user can also directly create attributes indexes using the "Create attribute index" processing algorithm, or e.g. using the GDAL/OGR "ogrinfo" command [1] [2], or using a Python script, or ... .<br>
<br>
Best regards.<br>
<br>
Andrea<br>
<br>
<br>
[1] <a href="https://urldefense.com/v3/__https:/gdal.org/drivers/vector/shapefile.html*spatial-and-attribute-indexing__;Iw!!P0kg3YazkQ!GzcCr3gac6KvyF6_O4cFbtPNlfuLIWHcHkhpM9nUVcW6hOYUC0_rFXJb3kpv7_1gSi8fXst9eGF6z5HWfW_38p3bmwrYD-E$">
https://gdal.org/drivers/vector/shapefile.html#spatial-and-attribute-indexing</a><br>
[2] <a href="https://urldefense.com/v3/__https:/gdal.org/user/ogr_sql_dialect.html*create-index__;Iw!!P0kg3YazkQ!GzcCr3gac6KvyF6_O4cFbtPNlfuLIWHcHkhpM9nUVcW6hOYUC0_rFXJb3kpv7_1gSi8fXst9eGF6z5HWfW_38p3bgfrbURg$">
https://gdal.org/user/ogr_sql_dialect.html#create-index</a><o:p></o:p></span></p>
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