<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000'><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000"><div>Hello,</div><div>To make things short, I have a device which gathers data in the fields (hundreds of data per second), and gets the position through a GPS (every second).<br></div><div>Between 2 GPS positions, I triangulate the positions, so the points are aligned.<br></div><div>Sometimes, the device "writes" the data so it spends some time doing so, and it does not gather anything, so I have a "hole".<br></div><div><br></div><div>Then, to visualize the data, I create a Shapefile, only with Points.<br></div><div><br></div><div>In one Shapefile, I had some strange points: points that appear on the map, but are not clickable and disappear when I zoom in too much. I attach the files ; they can be downloaded here, too: https://www.grosfichiers.com/sjNC3yx7Kvi </div><div><br></div><div>For instance, in the file I join, the position number 1613 and further are problematic. If my viewing area includes the point 1612, I see all the points, well aligned, but I cannot click points 1613 and further.<br></div><div>If I zoom in, or if I move the area and the point 1612 is out of the area, I see nothing anymore.</div><br><div>The code to generate the Shapefile has a systematic approach: it takes the points one after the other, and writes their position by incrementing the values. So I suspect there is no bug.</div><div>In a previous test, the same problem occured BEFORE point 1217 : I could only see the first points if the area included point 1217.</div><div><br></div><div>Questions:</div><div>- can anyone try to see my shapefile and confirm the problem?<br></div><div>- does this bug ring a bell to anyone?</div><div>- what may be the problem?<br></div><div><br></div><div>Thank you very much!<br></div><div>My versions are detailled below. I just updated to the LTR to try to solve the problem, but the bug exists with the 3.22.7-Białowieża and 3.28.14-Firenze versions.</div><div><br></div><div><br></div><div>Aurélie<br></div><div><br></div><div><br></div><div>
<table border="0" style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px;" align="center" width="100%" cellspacing="2" cellpadding="0">
<tbody><tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de QGIS</p></td>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">3.28.14-Firenze</p></td>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Révision du code</p></td>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><a href="https://github.com/qgis/QGIS/commit/b09131c512" target="_blank"><span style=" text-decoration: underline; color:#0000ff;">b09131c512</span></a></p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de Qt</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">5.15.3</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de Python</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">3.9.5</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de GDAL/OGR</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">3.8.2</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de Proj</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">9.3.1</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de la base de données du registre EPSG</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">v10.098 (2023-11-24)</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de GEOS</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">3.12.1-CAPI-1.18.1</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de SQLite</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">3.41.1</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de PDAL</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">2.6.0</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version du client PostgreSQL</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">unknown</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de SpatiaLite</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">5.1.0</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de QWT</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">6.1.6</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de QScintilla2</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">2.13.4</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de l'OS</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Windows 10 Version 2009</p></td></tr>
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<td><br></td>
<td><br></td></tr>
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<td colspan="4">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Extensions Python actives</p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">QGeoloGIS</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">1.9.0</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">db_manager</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">0.1.20</p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">grassprovider</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">2.12.99</p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">MetaSearch</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">0.3.6</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">processing</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">2.12.99</p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">sagaprovider</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">2.12.99</p></td></tr></tbody></table><style>p, li { white-space: pre-wrap; }</style></div><div><br></div><div><br></div><div>======= Previously =========<br></div><div><br></div><div>
<table border="0" style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px;" align="center" width="100%" cellspacing="2" cellpadding="0">
<tbody><tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de QGIS</p></td>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">3.22.7-Białowieża</p></td>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Révision du code</p></td>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"><a href="https://github.com/qgis/QGIS/commit/5a65627a" target="_blank"><span style=" text-decoration: underline; color:#0000ff;">5a65627a</span></a></p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de Qt</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">5.15.3</p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de Python</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">3.9.5</p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de GDAL/OGR</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">3.4.3</p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de Proj</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">9.0.0</p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de la base de données du registre EPSG</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">v10.054 (2022-02-13)</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de GEOS</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">3.10.2-CAPI-1.16.0</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de SQLite</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">3.38.1</p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de PDAL</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">2.3.0</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version du client PostgreSQL</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">13.0</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de SpatiaLite</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">5.0.1</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de QWT</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">6.1.6</p></td></tr>
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<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de QScintilla2</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">2.13.1</p></td></tr>
<tr>
<td>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Version de l'OS</p></td>
<td colspan="3">
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;">Windows 10 Version 2009</p></td></tr>
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