https://issues.qgis.org/https://issues.qgis.org/favicon.ico2014-03-20T07:17:13ZQGIS Issue TrackingQGIS Application - Bug report #9827: QGIS slows down dramatically if 'ask for datum transformation' dialog option is onhttps://issues.qgis.org/issues/9827?journal_id=497022014-03-20T07:17:13ZMichael Douchin
<ul></ul><p>Hi,</p>
<p>You mean when on-the-fly projection is enabled, and the project contains several layers with different CRS ?<br />In the workaround mentionned, which dialog are you talking of ?</p> QGIS Application - Bug report #9827: QGIS slows down dramatically if 'ask for datum transformation' dialog option is onhttps://issues.qgis.org/issues/9827?journal_id=497042014-03-20T07:26:53ZRegis Haubourgregis.haubourg@oslandia.com
<ul><li><strong>File</strong> <a href="/attachments/download/7013/bug_qgis_22.png">bug_qgis_22.png</a> added</li></ul><p>Salut Michael. <br />The mentionned dialog is in attached file. Problem remains if qgs file properties where saved with OTF Off.</p> QGIS Application - Bug report #9827: QGIS slows down dramatically if 'ask for datum transformation' dialog option is onhttps://issues.qgis.org/issues/9827?journal_id=497092014-03-21T00:09:03ZMarco Hugentoblermarco.hugentobler@sourcepole.ch
<ul><li><strong>Status</strong> changed from <i>Open</i> to <i>Feedback</i></li></ul><p>From the description, it is not clear to me what you mean by 'slowness'. Is it a) that the users had to make a choice for the datum transformation when opening projects saved with older versions (and click 'remember') or b) was the application also slower if all the datum transform information has been present?</p> QGIS Application - Bug report #9827: QGIS slows down dramatically if 'ask for datum transformation' dialog option is onhttps://issues.qgis.org/issues/9827?journal_id=497112014-03-21T00:51:08ZRegis Haubourgregis.haubourg@oslandia.com
<ul></ul><p>Well, after the first dialog warning for older qgs version, then, layers are loaded. First layers are loaded fast, until a layer requiring reprojection is hit. No datum dialog raise, but QGIS waits for sometimes 10 minutes on each layer after that..</p>
<p>I will check if list of datum reprojections set in general option has an effect..</p> QGIS Application - Bug report #9827: QGIS slows down dramatically if 'ask for datum transformation' dialog option is onhttps://issues.qgis.org/issues/9827?journal_id=517852014-06-09T09:34:09ZMartin Dobiaswonder.sk@gmail.com
<ul></ul><p>Please test again if the problem persists in current master (there have been some changes in the implementation)</p> QGIS Application - Bug report #9827: QGIS slows down dramatically if 'ask for datum transformation' dialog option is onhttps://issues.qgis.org/issues/9827?journal_id=520692014-06-13T01:41:08ZPedro VenĂ¢nciopedrongvenancio@gmail.com
<ul></ul><p>I can confirm this in QGIS 2.2, not only when opening a saved project, but also when adding two layers (it's more noticeable with heavy layers) with different datum. The datum transformation dialog box takes a long time to appear.</p>
<p>With QGIS master, everything seems to be resolved.</p> QGIS Application - Bug report #9827: QGIS slows down dramatically if 'ask for datum transformation' dialog option is onhttps://issues.qgis.org/issues/9827?journal_id=520702014-06-13T01:41:51ZGiovanni Manghigiovanni.manghi@gmail.com
<ul><li><strong>Resolution</strong> set to <i>fixed/implemented</i></li><li><strong>Status</strong> changed from <i>Feedback</i> to <i>Closed</i></li></ul><p>Please reopen if necessary.</p>