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