<div dir="ltr"><div>Hello,</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Apr 10, 2021 at 12:51 PM Timothy Glyn Southern via grass-user <<a href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</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 style="overflow-wrap: break-word;">Problem with wxpython guy in Manjaro with grass 7.8.5<div><br></div><div>Dear colleagues,</div><div><br></div><div>Following a period of low use due to health issues I am once again trying to use GRASS to visualise and analyse archaeological data.</div><div><br></div><div>I am running Manjaro and the latest download of GRASS from AUR.</div><div><br></div><div>It starts fine and shows both display windows for the GUI and then the windows crash. It is repeatable.</div><div><br></div><div>I have tried removing GRASS and reinstalling but that has not fixed the issue. As well I have tried changing the flags on the GUI. None make any difference, as soon as the mouse is apparently moved the windows crash.</div><div><br></div><div>Is this a known problem and is there a work around?</div></div></blockquote><div><br></div><div>based on your description it sounds like a bug in wxPython with Python 3.9:</div><div><a href="https://github.com/OSGeo/grass/issues/1123">https://github.com/OSGeo/grass/issues/1123</a></div><div><br></div><div>Hope that helps,</div><div>Anna</div><div><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 style="overflow-wrap: break-word;"><div><br></div><div>Thanks</div><div><br></div><div>Tim Southern<br><div>
<div dir="auto" style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><div dir="auto" style="overflow-wrap: break-word;"><div style="color:rgb(0,0,0);font-family:Verdana;font-size:10px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">Dr Timothy Glyn Southern</div><div style="color:rgb(0,0,0);font-family:Verdana;font-size:10px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">0155 941 8432</div><div style="color:rgb(0,0,0);font-family:Verdana;font-size:10px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none">0791 076 6814</div><div style="color:rgb(0,0,0);font-family:Verdana;font-size:10px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><br></div><br></div></div><br><br>
</div>
<div><br><blockquote type="cite"><div>On 4 Apr 2021, at 20:00, <a href="mailto:grass-user-request@lists.osgeo.org" target="_blank">grass-user-request@lists.osgeo.org</a> wrote:</div><br><div><div>Send grass-user mailing list submissions to<br><span style="white-space:pre-wrap"> </span><a href="mailto:grass-user@lists.osgeo.org" target="_blank">grass-user@lists.osgeo.org</a><br><br>To subscribe or unsubscribe via the World Wide Web, visit<br><span style="white-space:pre-wrap"> </span><a href="https://lists.osgeo.org/mailman/listinfo/grass-user" target="_blank">https://lists.osgeo.org/mailman/listinfo/grass-user</a><br>or, via email, send a message with subject or body 'help' to<br><span style="white-space:pre-wrap"> </span><a href="mailto:grass-user-request@lists.osgeo.org" target="_blank">grass-user-request@lists.osgeo.org</a><br><br>You can reach the person managing the list at<br><span style="white-space:pre-wrap"> </span><a href="mailto:grass-user-owner@lists.osgeo.org" target="_blank">grass-user-owner@lists.osgeo.org</a><br><br>When replying, please edit your Subject line so it is more specific<br>than "Re: Contents of grass-user digest..."<br><br><br>Today's Topics:<br><br> 1. Re: r.watershed identify inland watershed (ming han)<br><br><br>----------------------------------------------------------------------<br><br>Message: 1<br>Date: Sat, 3 Apr 2021 16:23:26 -0400<br>From: ming han <<a href="mailto:dustming@gmail.com" target="_blank">dustming@gmail.com</a>><br>To: Micha Silver <<a href="mailto:tsvibar@gmail.com" target="_blank">tsvibar@gmail.com</a>><br>Cc: GRASS user list <<a href="mailto:grass-user@lists.osgeo.org" target="_blank">grass-user@lists.osgeo.org</a>><br>Subject: Re: [GRASS-user] r.watershed identify inland watershed<br>Message-ID:<br><span style="white-space:pre-wrap"> </span><<a href="mailto:CAD%2BuAWjx1XBcc6jk%2Bhau8MnDa7CEAJfWeeEyEWq379efWrpMkw@mail.gmail.com" target="_blank">CAD+uAWjx1XBcc6jk+hau8MnDa7CEAJfWeeEyEWq379efWrpMkw@mail.gmail.com</a>><br>Content-Type: text/plain; charset="utf-8"<br><br>Hi Micha<br><br> I understand what you mean. But it requires another step to<br>manually identify depressions from these pre-conditioned DEM.<br><br>Cheers<br>Ming<br><br><br>Micha Silver <<a href="mailto:tsvibar@gmail.com" target="_blank">tsvibar@gmail.com</a>> ?2021?4?3??? ??12:43???<br><br><blockquote type="cite"><br>On 4/2/21 5:37 PM, ming han wrote:<br><blockquote type="cite">Maybe I am the only one who has this demand. Following is just a<br>recommendation to GRASS r.watershed function.<br>Maybe it is worth having an option to avoid r.watershed overcome<br>depressions.<br>The reasons are 1) there are many hydrologically pre condition DEM<br>data available globally, such as:HydroSHEDS, MERIT<br> 2) the depression in these DEM are real<br>depressions, overcome these depressions will make the entire drainage<br>system<br></blockquote><br><br>Regarding Hydrosheds, the documentation[1] in section 3.4 explains how<br>they overcame the problem of sinks. They performed a regular "fill<br>sinks" operation on areas that were SRTM artifacts. True natural<br>depressions were identified manually, then another manual procedure of<br>carving rivers was done to force flow thru these depressions and produce<br>hydrologically correct streams and basins. So pre-conditioning to<br>overcome depressions is not a magic bullet...<br><br><br>In my opinion, the best results are obtained when true depressions<br>(pits, salt playas or karst regions) are identified, and set to NULL in<br>the elevation raster. That will allow r.watershed to stop routing at<br>those locations, and produce correct stream and basin layers.<br><br><br>[1]<a href="https://hydrosheds.org/images/inpages/HydroSHEDS_TechDoc_v1_2.pdf" target="_blank">https://hydrosheds.org/images/inpages/HydroSHEDS_TechDoc_v1_2.pdf</a><br><br><br><blockquote type="cite">incorrectly.<br><br>I understand GRASS has other functions to solve this problem, but just<br>a user recommendation. I use GRASS a lot.<br><br>Thanks<br>Ming<br><br>ming han <<a href="mailto:dustming@gmail.com" target="_blank">dustming@gmail.com</a> <mailto:<a href="mailto:dustming@gmail.com" target="_blank">dustming@gmail.com</a>>><br>?2021?3?30??? ??8:06???<br><br> Got it, thanks everyone~<br> Ming<br><br> Micha Silver <<a href="mailto:tsvibar@gmail.com" target="_blank">tsvibar@gmail.com</a> <mailto:<a href="mailto:tsvibar@gmail.com" target="_blank">tsvibar@gmail.com</a>>><br> ?2021?3?29??? ??2:40???<br><br> Hello:<br><br> You might try `r.param.scale`, or even better `r.geomorphons`<br> modules to<br> identify geomorphology features, then filter out all pixels<br> identified<br> as pits.<br><br><br> r.watershed is purposely designed to overcome depressions, and<br> find flow<br> routing thru these spots. So I don't think you can use that<br> module to<br> identify depressions.<br><br><br> On 3/27/21 8:49 PM, ming han wrote:<br><blockquote type="cite">Hi Everyone<br><br> When I do watershed delineation using r.watershed for<br></blockquote> great salt<br><blockquote type="cite">lake watershed. I found r.watershed always tried to assign<br></blockquote> an outlet<br><blockquote type="cite">for a great salt lake, which does actually not exist because<br></blockquote> it is an<br><blockquote type="cite">inland lake and the great salt lake has no watershed outlet<br></blockquote> at all.<br><blockquote type="cite"><br> I noticed that there is a depression option. But is<br></blockquote> there any<br><blockquote type="cite">way that r.watershed can automatically identify depressions<br></blockquote> while<br><blockquote type="cite">defining flow accumulation and stream network?<br><br>Thanks<br>Ming<br><br>_______________________________________________<br>grass-user mailing list<br><a href="mailto:grass-user@lists.osgeo.org" target="_blank">grass-user@lists.osgeo.org</a> <mailto:<a href="mailto:grass-user@lists.osgeo.org" target="_blank">grass-user@lists.osgeo.org</a>><br><a href="https://lists.osgeo.org/mailman/listinfo/grass-user" target="_blank">https://lists.osgeo.org/mailman/listinfo/grass-user</a><br></blockquote> <<a href="https://lists.osgeo.org/mailman/listinfo/grass-user" target="_blank">https://lists.osgeo.org/mailman/listinfo/grass-user</a>><br><br> --<br> Micha Silver<br> Ben Gurion Univ.<br> Sde Boker, Remote Sensing Lab<br> cell: +972-523-665918<br><br></blockquote>--<br>Micha Silver<br>Ben Gurion Univ.<br>Sde Boker, Remote Sensing Lab<br>cell: +972-523-665918<br><br><br></blockquote>-------------- next part --------------<br>An HTML attachment was scrubbed...<br>URL: <<a href="http://lists.osgeo.org/pipermail/grass-user/attachments/20210403/6b22a457/attachment-0001.html" target="_blank">http://lists.osgeo.org/pipermail/grass-user/attachments/20210403/6b22a457/attachment-0001.html</a>><br><br>------------------------------<br><br>Subject: Digest Footer<br><br>_______________________________________________<br>grass-user mailing list<br><a href="mailto:grass-user@lists.osgeo.org" target="_blank">grass-user@lists.osgeo.org</a><br><a href="https://lists.osgeo.org/mailman/listinfo/grass-user" target="_blank">https://lists.osgeo.org/mailman/listinfo/grass-user</a><br><br><br>------------------------------<br><br>End of grass-user Digest, Vol 180, Issue 4<br>******************************************<br></div></div></blockquote></div><br></div></div>_______________________________________________<br>
grass-user mailing list<br>
<a href="mailto:grass-user@lists.osgeo.org" target="_blank">grass-user@lists.osgeo.org</a><br>
<a href="https://lists.osgeo.org/mailman/listinfo/grass-user" rel="noreferrer" target="_blank">https://lists.osgeo.org/mailman/listinfo/grass-user</a><br>
</blockquote></div></div>