<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Dear Maria,</div>
<div> </div>
<div>OK, I understand. So you have to do the reverse: update your shapefile geometries with the erroneous updated coordinates in the attribute table. Like Nicholas, I supposed you have to handle point data.</div>
<div> </div>
<div>You can transfer the coordinates from your table to your geometries with copy and paste.</div>
<ul>
<li>Either you still remember the entries on which you have applied changes to or</li>
<li>you may calculate the differences between actual values (geometries) and desired values (attribute table) in new columns of your table to systematically identify them</li>
</ul>
<div>Set your point layer to edit mode (toggle editing), the digitizing toolbar should be visible. Select the point you want to apply an update with a right mouse click and the vertex editor appears. There you can transfer your desired coordinates with copy and paste. Up to now I don't know an easy method to update the actual geometry with values in the attribute table automatically (only the reverse).</div>
<div> </div>
<div>If you are stuck, consider to contact Nicolas via zoom.</div>
<div>
<div> </div>
<div>Regards, Christine</div>
<div>
<div style="margin: 10.0px 5.0px 5.0px 10.0px;padding: 10.0px 0 10.0px 10.0px;border-left: 2.0px solid rgb(195,217,229);">
<div style="margin: 0 0 10.0px 0;"><b>Gesendet:</b> Montag, 31. Januar 2022 um 09:48 Uhr<br/>
<b>Von:</b> "Maria Shinoto" <maria.shinoto@zaw.uni-heidelberg.de><br/>
<b>An:</b> "geo.guide@web.de" <geo.guide@web.de><br/>
<b>Betreff:</b> Re: [Qgis-user] check for coordinates in an attribute table for shapefile layer</div>
<div>Dear Christine,<br/>
<br/>
Thank you for your immediate help. I thought of exporting an importing in the worst case. Since I have already prepared a map / print layout with lots of individual positioning of point labels, I wanted to avoid it if possible. I now had a look on the geometry tools.<br/>
<br/>
Thanks a lot,<br/>
Maria<br/>
<br/>
<br/>
> Am 31.01.2022 um 17:22 schrieb geo.guide@web.de:<br/>
><br/>
> Dear Maria,<br/>
><br/>
> if you export your shapefile to csv and reimport it in QGIS with your X and Y values as the valid coordinates again, your problem should be solved.<br/>
><br/>
> It's possible and better to edit the geometry directly with the geometry tools.<br/>
><br/>
> Regards, Christine<br/>
><br/>
><br/>
> Gesendet: Montag, 31. Januar 2022 um 09:03 Uhr<br/>
> Von: "Maria Shinoto" <maria.shinoto@zaw.uni-heidelberg.de><br/>
> An: qgis-user@lists.osgeo.org<br/>
> Betreff: [Qgis-user] check for coordinates in an attribute table for shapefile layer<br/>
> Hi,<br/>
><br/>
> I imported a .csv file with about 100 datasets and created a shapefile layer from the X and Y data.<br/>
><br/>
> Then I did something stupid. I deleted some duplicates and changed the X and Y data slightly in three or four data sets, and I created a new row with one new data point and X and Y data.<br/>
><br/>
> What I did no realize is that the data in X and Y will not be accepted automatically as geo coordinates.<br/>
><br/>
> Now I have a map without the full set of points, and I do not know the following:<br/>
><br/>
> 1. How do I check quickly, which rows need ne geocoordinates from the X and Y columns?<br/>
><br/>
> 2. When I figured which data set need updates, how do get the X and Y data into their geocoordinates and get them shown on the map.<br/>
><br/>
> Thanks,<br/>
> Maria<br/>
><br/>
> _______________________________________________<br/>
> Qgis-user mailing list<br/>
> Qgis-user@lists.osgeo.org<br/>
> List info: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">https://lists.osgeo.org/mailman/listinfo/qgis-user</a><br/>
> Unsubscribe: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">https://lists.osgeo.org/mailman/listinfo/qgis-user</a><br/>
</div>
</div>
</div>
</div></div></body></html>