<div dir="ltr">Hi!<div>While all that Nicolas and Uwe says is generally true and reasonable, it is also true that bugs and errors can be more or less dangerous.</div><div>With limited resources, it is even more important that bugs are handled according to a simple risk analysis.</div><div>In this case, it would go something like this:</div><div>What is the probability that users will edit shape files (high, moderate, low): High</div><div>What is the probability that QGIS will damage shape files: Moderate (as I understand)</div><div>What is the severity of the potential damage (fatal, reparable, negligible): Fatal</div><div>And High * Moderate * Fatal equals a probable risk for fatal damage, which ought to prompt for a rapid fix of ths bug, regardless of where it resides in the QGIS ecosystem.</div><div>But oddly enough, I have browsed through many of the posts on the shape file issue, but have yet to find a technical description of the exact cause and origin of this bug.</div><div><br></div><div>Regards, Mats.E</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2016-01-19 22:14 GMT+01:00 Saber Razmjooei <span dir="ltr"><<a href="mailto:saber.razmjooei@lutraconsulting.co.uk" target="_blank">saber.razmjooei@lutraconsulting.co.uk</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-GB" link="#0563C1" vlink="#954F72"><div><p class="MsoNormal"><span style="color:#1f497d">Dear Uwe,<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">There are some work-arounds and solutions provided within the ticket.<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">Also, work is underway to resolve the issue in the next LTR release. Last time I checked (5 minutes ago) it is still present in master.<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">I totally agree with you that there should be a warning to users to make them aware of this limitation.<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">In general, QGIS and other GIS/non-GIS proprietary software come with bugs. The reason developers haven’t fixed this bug and other bugs is due to lack of resources (time, money). <u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">The project steering committee is committed to resolving the bugs and they have already allocated a big proportion of their income for bug fixing. You can see last year’s financial report hear:<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><a href="http://qgis.org/en/_downloads/PublicQGISfinancialreport2014.pdf" target="_blank">http://qgis.org/en/_downloads/PublicQGISfinancialreport2014.pdf</a><u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">If you think, there should be more work done to increase the quality of QGIS, you can get involved or contribute to the project:<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><a href="http://qgis.org/en/site/getinvolved/governance/sponsorship/sponsorship.html" target="_blank">http://qgis.org/en/site/getinvolved/governance/sponsorship/sponsorship.html</a><u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">Regards,<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">Saber<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Qgis-user [mailto:<a href="mailto:qgis-user-bounces@lists.osgeo.org" target="_blank">qgis-user-bounces@lists.osgeo.org</a>] <b>On Behalf Of </b>Uwe Fischer<br><b>Sent:</b> 19 January 2016 19:10<br><b>To:</b> 'qgis-user ML'<br><b>Subject:</b> [Qgis-user] QGIS big fail in deleting Shapes!!<u></u><u></u></span></p></div></div><div><div class="h5"><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif"">Hello all,<u></u><u></u></span></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif""><u></u> <u></u></span></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif"">today I was working on a shape dataset and I had to delete some features. Later I opened the shapefile in ArcMap by chance and I found that the features were not deleted. They still did exist. I repeated the process – and got the same result. Then, searching the internet, I found this incredible post: <a href="https://hub.qgis.org/issues/11007" target="_blank">https://hub.qgis.org/issues/11007</a><u></u><u></u></span></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif""><u></u> <u></u></span></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif"">It is a well known problem (for 1,5 years!!) that <i><u>QGIS is not able to delete shapes in a reliable way</u></i>!! I was horrified to read this because it is the same as if a Word processor would not be able to delete a letter from a text. I cannot understand why the QGIS developers haven’t fix that yet. If QGIS really wants to compete with ArcMap, they should fix it as soon as possible. At least, the according menu entries or buttons should be inactivated if they don’t bring out reliable results.<u></u><u></u></span></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif""><u></u> <u></u></span></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif"">My questions are:<u></u><u></u></span></p><p><span lang="DE" style="font-family:Symbol">·</span><span lang="DE" style="font-size:7.0pt;font-family:"Times New Roman","serif""> </span><span lang="DE" style="font-family:"Verdana","sans-serif"">is this information still up to date? I can‘t read all of the 80 answers to the post now to get in-depth information ...<u></u><u></u></span></p><p><span lang="DE" style="font-family:Symbol">·</span><span lang="DE" style="font-size:7.0pt;font-family:"Times New Roman","serif""> </span><span lang="DE" style="font-family:"Verdana","sans-serif"">does anybody have information about how they are planning to handle this problem at the development team?<u></u><u></u></span></p><p><span lang="DE" style="font-family:Symbol">·</span><span lang="DE" style="font-size:7.0pt;font-family:"Times New Roman","serif""> </span><span lang="DE" style="font-family:"Verdana","sans-serif"">is there a workaround for this? Do the GRASS vector tools bring out reliable results?<u></u><u></u></span></p><p><span lang="DE" style="font-family:Symbol">·</span><span lang="DE" style="font-size:7.0pt;font-family:"Times New Roman","serif""> </span><span lang="DE" style="font-family:"Verdana","sans-serif"">are there more of those software errors in QGIS that might lead to huge problems in working on vector data and sharing them with others? If so, is there a „black list“ of things one is never allowed to use in QGIS if you don’t want to destroy your datasets?<u></u><u></u></span></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif""><u></u> <u></u></span></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif""><u></u> <u></u></span></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif"">Regards,<u></u><u></u></span></p><p class="MsoNormal"><span lang="DE" style="font-family:"Verdana","sans-serif";font-variant:small-caps">Uwe Fischer<u></u><u></u></span></p></div></div></div>
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