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<div>----- Mensagem de <a href="mailto:qgis-user-request@lists.osgeo.org">qgis-user-request@lists.osgeo.org</a> ---------<br></div>
<div>Data: Sat, 20 Feb 2021 12:00:02 -0800<br></div>
<div>De: <a href="mailto:qgis-user-request@lists.osgeo.org">qgis-user-request@lists.osgeo.org</a><br></div>
<div>Assunto: Qgis-user Digest, Vol 180, Issue 52<br></div>
<div>Para: <a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a><br></div>
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<div>Today's Topics:<br></div>
<div><br></div>
<div> 1. Re: Problem to open Raster files (Bernd Vogelgesang)<br></div>
<div> 2. Re: Symbol lines every km, moving when changing scale or<br></div>
<div> moving map (Nyall Dawson)<br></div>
<div> 3. Re: Problem to open Raster files (Nyall Dawson)<br></div>
<div> 4. raster with distance values from a point (Fabio Falchi)<br></div>
<div><br></div>
<div><br></div>
<div>----------------------------------------------------------------------<br></div>
<div><br></div>
<div>Message: 1<br></div>
<div>Date: Fri, 19 Feb 2021 21:42:38 +0100<br></div>
<div>From: Bernd Vogelgesang <<a href="mailto:bernd.vogelgesang@gmx.de">bernd.vogelgesang@gmx.de</a>><br></div>
<div>To: Cassia Pahim <<a href="mailto:cpahim@gmail.com">cpahim@gmail.com</a>>, qgis-user<br></div>
<div> <<a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a>><br></div>
<div>Subject: Re: [Qgis-user] Problem to open Raster files<br></div>
<div>Message-ID: <<a href="mailto:1b52c0b6-2746-973d-9847-d09aaadc3b90@gmx.de">1b52c0b6-2746-973d-9847-d09aaadc3b90@gmx.de</a>><br></div>
<div>Content-Type: text/plain; charset=utf-8; format=flowed<br></div>
<div><br></div>
<div>seems this a ESRI File Geodatabase (sorry, left the ESRI stage 10 years<br></div>
<div>ago, so not sure).<br></div>
<div><br></div>
<div>As far as I know, rasters can't be exctracted from this with QGIS.<br></div>
<div><br></div>
<div>List of supported raster formats: <a rel="noopener noreferrer" href="https://gdal.org/drivers/raster/index.html">https://gdal.org/drivers/raster/index.html</a><br></div>
<div><br></div>
<div><br></div>
<div>Am 19.02.21 um 21:00 schrieb Cassia Pahim:<br></div>
<blockquote style="border:none; margin:0px; padding-left:0;margin-inline-start: 0;margin-inline-end: 0;" type="cite">
<div>They are in those formats<br></div>
<div><br></div>
<div>.gdbindexes<br></div>
<div>. gdbtable<br></div>
<div>. horizon<br></div>
<div>. gdbtablx<br></div>
<div>. freelist<br></div>
<div>. atx<br></div>
<div>. spx<br></div>
<div><br></div>
<div>Cassia<br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<blockquote style="border:none; margin:0px; padding-left:0;margin-inline-start: 0;margin-inline-end: 0;" type="cite">
<div>Le 19 f?vr. 2021 ? 14:58, Bernd Vogelgesang <<a href="mailto:bernd.vogelgesang@gmx.de">bernd.vogelgesang@gmx.de</a>> a ?crit :<br></div>
<div><br></div>
<div>could you possibly share a little more details about what type of rasters you are dealing with? There is a bazillion of different raster formats!<br></div>
<div><br></div>
<div>Am 19.02.21 um 20:47 schrieb Cassia Pahim:<br></div>
<blockquote style="border:none; margin:0px; padding-left:0;margin-inline-start: 0;margin-inline-end: 0;" type="cite">
<div>Hello,<br></div>
<div><br></div>
<div>I am trying to create a map and I have 15 datasets that were sent to me in a zip folder and I can?t open them into QGIS. When using the icon ? add rater layer ? I get an error message telling me the files are not valid or recognized. What should I do to be able to work with those datasets ? Please note that I am using macOS Catalina 10.15.7 and I have installed QGIS 3.16.<br></div>
<div><br></div>
<div>I appreciate your help,<br></div>
<div><br></div>
<div>Cassia<br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
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</blockquote>
<div>------------------------------<br></div>
<div><br></div>
<div>Message: 2<br></div>
<div>Date: Sat, 20 Feb 2021 07:25:03 +1000<br></div>
<div>From: Nyall Dawson <<a href="mailto:nyall.dawson@gmail.com">nyall.dawson@gmail.com</a>><br></div>
<div>To: Andreas Neumann <<a href="mailto:a.neumann@carto.net">a.neumann@carto.net</a>><br></div>
<div>Cc: Prud'homme J?r?mie <<a href="mailto:p.jeremie@gmail.com">p.jeremie@gmail.com</a>>, qgis-user<br></div>
<div> <<a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a>><br></div>
<div>Subject: Re: [Qgis-user] Symbol lines every km, moving when changing<br></div>
<div> scale or moving map<br></div>
<div>Message-ID:<br></div>
<div> <<a href="mailto:CAB28AsioJzeQRb9qb_g7rK1YR5aC4BbGTt156dcjtJTnYen1cQ@mail.gmail.com">CAB28AsioJzeQRb9qb_g7rK1YR5aC4BbGTt156dcjtJTnYen1cQ@mail.gmail.com</a>><br></div>
<div>Content-Type: text/plain; charset="UTF-8"<br></div>
<div><br></div>
<div>On Fri, 19 Feb 2021 at 23:00, Andreas Neumann <<a href="mailto:a.neumann@carto.net">a.neumann@carto.net</a>> wrote:<br></div>
<blockquote style="border:none; margin:0px; padding-left:0;margin-inline-start: 0;margin-inline-end: 0;" type="cite">
<div>Hi J?r?mie,<br></div>
<div><br></div>
<div>Ah good to hear!<br></div>
<div><br></div>
<div>I'm not a big fan of this fact that line simplification is turned on by default in QGIS. I believe that users should consciously turn it on if they want it!<br></div>
</blockquote>
<div>I'd be interested to see some benchmarks of disabling vs enabling<br></div>
<div>simplification for the marker line symbol layer alone. If it's not too<br></div>
<div>expensive, we could skip it automatically for line marker symbol<br></div>
<div>layers (it makes a HUGE difference to the rendering speed for simple<br></div>
<div>line layers and other symbol layer types, but the intention is that<br></div>
<div>the results should be visually identical to no simplification).<br></div>
<div><br></div>
<div>Nyall<br></div>
<div><br></div>
<blockquote style="border:none; margin:0px; padding-left:0;margin-inline-start: 0;margin-inline-end: 0;" type="cite">
<div>Your example shows that it can lead to confusion (understandably).<br></div>
<div><br></div>
<div>Good that it works now. Note that you can override this setting on a per layer base in the layer properties - so not all layers need to have the same setting.<br></div>
<div><br></div>
<div>Greetings,<br></div>
<div><br></div>
<div>Andreas<br></div>
<div><br></div>
<div>On 2021-02-19 13:40, Prud'homme J?r?mie wrote:<br></div>
<div><br></div>
<div>Hi,<br></div>
<div><br></div>
<div>I had simplification turned on, indeed...<br></div>
<div><br></div>
<div>I deactivated it :<br></div>
<div>- in the Options as you mention, so that it is deactivated for newly added layers<br></div>
<div>- in my layer options (Rendering properties)<br></div>
<div><br></div>
<div>And it is ok now.<br></div>
<div><br></div>
<div>It makes sense that if the line is simplified the distance vary !<br></div>
<div><br></div>
<div>Thanks Andreas.<br></div>
<div><br></div>
<div><br></div>
<div>J?r?mie.<br></div>
<div><br></div>
<div>Le ven. 19 f?vr. 2021 ? 11:12, Andreas Neumann <<a href="mailto:a.neumann@carto.net">a.neumann@carto.net</a>> a ?crit :<br></div>
<div><br></div>
<div>Hi J?r?mie,<br></div>
<div><br></div>
<div>Do you have geometry simplification turned off? See "Settings" --> "Options" --> "Rendering" --> "Enable feature simplification ..."<br></div>
<div><br></div>
<div>Make sure this is deactivated (I think it is enabled by default).<br></div>
<div><br></div>
<div>Greetings,<br></div>
<div><br></div>
<div>Andreas<br></div>
<div><br></div>
<div><br></div>
<div>On 2021-02-19 11:05, Prud'homme J?r?mie wrote:<br></div>
<div><br></div>
<div>Tested too fast :(<br></div>
<div><br></div>
<div>Behavior is ok when zooming in, but still problems when zooming out (whereas the entire feature is visible !).<br></div>
<div>See here : <a rel="noopener noreferrer" href="https://www.zupimages.net/viewer.php?id=21/07/ehlo.gif">https://www.zupimages.net/viewer.php?id=21/07/ehlo.gif</a><br></div>
<div><br></div>
<div>Circles should follow the strokes generated with the tool "Points along geometry".<br></div>
<div><br></div>
<div><br></div>
<div>J?r?mie.<br></div>
<div><br></div>
<div>Le ven. 19 f?vr. 2021 ? 10:03, Prud'homme J?r?mie <<a href="mailto:p.jeremie@gmail.com">p.jeremie@gmail.com</a>> a ?crit :<br></div>
<div><br></div>
<div>Hi,<br></div>
<div><br></div>
<div>Thank you very much Nyall, this one was pretty well hidden.<br></div>
<div><br></div>
<div>With clipping unchecked, behavior is as expected for my use case.<br></div>
<div><br></div>
<div><br></div>
<div>J?r?mie.<br></div>
<div><br></div>
<div>Le jeu. 18 f?vr. 2021 ? 23:29, Nyall Dawson <<a href="mailto:nyall.dawson@gmail.com">nyall.dawson@gmail.com</a>> a ?crit :<br></div>
<div><br></div>
<div>On Wed, 13 Jan 2021 at 06:33, Prud'homme J?r?mie <<a href="mailto:p.jeremie@gmail.com">p.jeremie@gmail.com</a>> wrote:<br></div>
<div><br></div>
<div>Hi,<br></div>
<div><br></div>
<div>I'm using QGIS 3.10.<br></div>
<div><br></div>
<div>I tried to use only symbology to display a stroke every km along a road.<br></div>
<div>The project CRS is 2154 (Lambert 93).<br></div>
<div><br></div>
<div>When adding a ""symbol line" with an interval of 1000 map units (meter for 2154) ? or 1000 meters at scale, same result ? I achieve to display symbols every km.<br></div>
<div><br></div>
<div>Problem is when I move the map or change scale, the symbols do not always stay in place. They are sometimes misplaced.<br></div>
<div><br></div>
<div>I've been told that problem can be that the first node of the line is not always the reference to calculate the intervals.<br></div>
<div><br></div>
<div>From the bottom of the symbol widget, click the "Advanced" button and<br></div>
<div>uncheck "Clip features to canvas extent".<br></div>
<div><br></div>
<div>Nyall<br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div>You can find a GIF here that displays my problem : <a rel="noopener noreferrer" href="https://zupimages.net/viewer.php?id=21/02/nvr2.gif">https://zupimages.net/viewer.php?id=21/02/nvr2.gif</a><br></div>
<div><br></div>
<div>Circles are symbols via Symbology.<br></div>
<div>Strokes are symbos on points generated vith the tool "Points along geometry".<br></div>
<div><br></div>
<div>You can see that circles are not always at the same place as the strokes.<br></div>
<div><br></div>
<div>Is it a "normal" behavior ?<br></div>
<div>Anyway as a user I would expect that symbols are always generated at the same place from the starting node.<br></div>
<div><br></div>
<div>Thanks for your enlightments on this.<br></div>
<div><br></div>
<div>J?r?mie.<br></div>
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</blockquote>
<div>------------------------------<br></div>
<div><br></div>
<div>Message: 3<br></div>
<div>Date: Sat, 20 Feb 2021 07:27:17 +1000<br></div>
<div>From: Nyall Dawson <<a href="mailto:nyall.dawson@gmail.com">nyall.dawson@gmail.com</a>><br></div>
<div>To: Bernd Vogelgesang <<a href="mailto:bernd.vogelgesang@gmx.de">bernd.vogelgesang@gmx.de</a>><br></div>
<div>Cc: Cassia Pahim <<a href="mailto:cpahim@gmail.com">cpahim@gmail.com</a>>, qgis-user<br></div>
<div> <<a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a>><br></div>
<div>Subject: Re: [Qgis-user] Problem to open Raster files<br></div>
<div>Message-ID:<br></div>
<div> <<a href="mailto:CAB28AsjtkbLLiqy-O+LswVvgjt5Zf5crZ6YSKyk14HRSxbpUnQ@mail.gmail.com">CAB28AsjtkbLLiqy-O+LswVvgjt5Zf5crZ6YSKyk14HRSxbpUnQ@mail.gmail.com</a>><br></div>
<div>Content-Type: text/plain; charset="UTF-8"<br></div>
<div><br></div>
<div>On Sat, 20 Feb 2021 at 06:43, Bernd Vogelgesang<br></div>
<div><<a href="mailto:bernd.vogelgesang@gmx.de">bernd.vogelgesang@gmx.de</a>> wrote:<br></div>
<blockquote style="border:none; margin:0px; padding-left:0;margin-inline-start: 0;margin-inline-end: 0;" type="cite">
<div>seems this a ESRI File Geodatabase (sorry, left the ESRI stage 10 years<br></div>
<div>ago, so not sure).<br></div>
<div><br></div>
<div>As far as I know, rasters can't be exctracted from this with QGIS.<br></div>
</blockquote>
<div>This is the ONLY way to use these data formats from open source<br></div>
<div>software: <a rel="noopener noreferrer" href="https://github.com/r-barnes/ArcRasterRescue">https://github.com/r-barnes/ArcRasterRescue</a><br></div>
<div><br></div>
<div>I've long been seeking a financial sponsor to fund development of a<br></div>
<div>GDAL driver for GDB raster layers, but to date have not had any luck.<br></div>
<div>If raster GDB support is important to your organisation, can you<br></div>
<div>please contact me off list to discuss sponsoring this development?<br></div>
<div><br></div>
<div>Thanks!<br></div>
<div>Nyall<br></div>
<div><br></div>
<div><br></div>
<blockquote style="border:none; margin:0px; padding-left:0;margin-inline-start: 0;margin-inline-end: 0;" type="cite">
<div>List of supported raster formats: <a rel="noopener noreferrer" href="https://gdal.org/drivers/raster/index.html">https://gdal.org/drivers/raster/index.html</a><br></div>
<div><br></div>
<div><br></div>
<div>Am 19.02.21 um 21:00 schrieb Cassia Pahim:<br></div>
<div>They are in those formats<br></div>
<div><br></div>
<div>.gdbindexes<br></div>
<div>. gdbtable<br></div>
<div>. horizon<br></div>
<div>. gdbtablx<br></div>
<div>. freelist<br></div>
<div>. atx<br></div>
<div>. spx<br></div>
<div><br></div>
<div>Cassia<br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div>Le 19 f?vr. 2021 ? 14:58, Bernd Vogelgesang <<a href="mailto:bernd.vogelgesang@gmx.de">bernd.vogelgesang@gmx.de</a>> a ?crit :<br></div>
<div><br></div>
<div>could you possibly share a little more details about what type of rasters you are dealing with? There is a bazillion of different raster formats!<br></div>
<div><br></div>
<div>Am 19.02.21 um 20:47 schrieb Cassia Pahim:<br></div>
<div>Hello,<br></div>
<div><br></div>
<div>I am trying to create a map and I have 15 datasets that were sent to me in a zip folder and I can?t open them into QGIS. When using the icon ? add rater layer ? I get an error message telling me the files are not valid or recognized. What should I do to be able to work with those datasets ? Please note that I am using macOS Catalina 10.15.7 and I have installed QGIS 3.16.<br></div>
<div><br></div>
<div>I appreciate your help,<br></div>
<div><br></div>
<div>Cassia<br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
<div><br></div>
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<div>Message: 4<br></div>
<div>Date: Sat, 20 Feb 2021 17:04:14 +0000 (UTC)<br></div>
<div>From: Fabio Falchi <<a href="mailto:fabio_falchi@yahoo.it">fabio_falchi@yahoo.it</a>><br></div>
<div>To: Qgis-user ML <<a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a>><br></div>
<div>Subject: [Qgis-user] raster with distance values from a point<br></div>
<div>Message-ID: <<a href="mailto:622673810.907486.1613840654580@mail.yahoo.com">622673810.907486.1613840654580@mail.yahoo.com</a>><br></div>
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<div>Dear all,<br></div>
<div>I need to speed up the process of obtaining rasters with distances from a single point in it. Manually I use this procedure:With a georeferenced raster in a UTM projection I use raster calculator to obtain a raster with all pixels set to zero. Then, with Serval plug-in, I manually set to 1 the value of the pixel in the wanted position (either by using a satellite overlay or by using a point vector layer with the appropriate coordinates). Then I use the proximity function under Raster>Analisys menu.I want to make this via the Graphical Modeler, in order to be able to make the process fast and skip the manual introduction with Serval plug-in. At the very least, I need a mode to put the value 1 in the pixel of the selected null raster in the position givel by lat-lon coordinates.<br></div>
<div>Thank you!Best,Fabio Falchi<br></div>
<div><br></div>
<div>USC - Universidade de Santiago de Compostela<br></div>
<div><br></div>
<div>ISTIL - Light Pollution Science and Technology Institute<br></div>
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<div>End of Qgis-user Digest, Vol 180, Issue 52******************************************<br></div>
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