<div dir="ltr">Also, please beware that some of these training materials may be outdated, and for instance may have been written before the Check Validity in processing was implemented.<div><br></div><div>Alexandre Neto</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jan 8, 2021 at 3:29 PM Nicolas Cadieux <<a href="mailto:njacadieux.gitlab@gmail.com">njacadieux.gitlab@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">Hi,<div><br><div>Have you tried fixing the geometry? Go to vector/Geometry tools/Check Validity.</div><div>Try both QGIS and GEOS methods. Topology Checker Plugin (that need to be installed under Plugins) also works well.<br><br><div dir="ltr">Nicolas Cadieux<div><a href="https://gitlab.com/njacadieux" target="_blank">https://gitlab.com/njacadieux</a></div></div><div dir="ltr"><br><blockquote type="cite">Le 8 janv. 2021 à 09:31, Wanda Norman <<a href="mailto:wanda.mnorman2015@gmail.com" target="_blank">wanda.mnorman2015@gmail.com</a>> a écrit :<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr">I am getting the same error in the training module for lesson 6.2.9. I have done the lesson twice thinking I had missed a step - but get to the same point of extracting the buildings and get the error message. <div><br></div><div>I am using QGIS 3.1 with Windows 10 on my HP laptop.</div><div><br></div><div>Thanks!</div><div>Wanda Norman<br><div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jan 7, 2021 at 12:23 PM Inna Nogeste <<a href="mailto:nogeste@outlook.com" target="_blank">nogeste@outlook.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div lang="SV">
<div>
<p class="MsoNormal">I’m working through the training manual and completed all the preceding modules and their output files.</p>
<p class="MsoNormal">When I get to Module 8.2.1</p>
<p class="MsoNormal"><a href="https://docs.qgis.org/3.16/en/docs/training_manual/complete_analysis/analysis_combination.html#moderate-ty" target="_blank">https://docs.qgis.org/3.16/en/docs/training_manual/complete_analysis/analysis_combination.html#moderate-ty</a></p>
<p class="MsoNormal">to intersect my previous output files I get an error message when I run the Intersection tool that a feature in my Overlay layer ’has invalid geometry. Please fix the geometry or change the Processing setting to the “Ignore invalid input
features” option.’</p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">The overlay layer is a polygonized vector layer createdin a previous modeul in the training manual from a raster layer.
</p>
<p class="MsoNormal">The invalid geometry in the polygonized layer represents 1 individual cell in the original raster layer. Changing the Processing setting to ”Skip (Ignore) Features with Invalid Geometries” doesn’t help and outputs an empty layer.</p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Has anyone else had problems with this module and the layer files created in previous modules?</p>
<p class="MsoNormal">I’ve noted that the original SRTM_41_19.TIF exercise data is in EPSG 32733 and not EPSG 32734 as per the other exercise (vector) data and this causes issues when you get to Module 8.</p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I’m currently documenting discrepancies that I’m finding in the training manual and am assuming that I can eventually add them to
<a href="https://github.com/qgis/QGIS-Documentation/issues?q=is%3Aissue+is%3Aopen+label%3AEasy" target="_blank">
https://github.com/qgis/QGIS-Documentation/issues?q=is%3Aissue+is%3Aopen+label%3AEasy</a></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Regards,</p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Inna Nogeste</p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Skickades från <a href="https://go.microsoft.com/fwlink/?LinkId=550986" target="_blank">
E-post</a> för Windows 10</p>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
</div>
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