Re: [Qgis-user] Rendering of Images in QGIS 2.6x +
Hey, Yep you best bet is to try the dev list. Someone on there should know or be able to help you. Nathan On Tue, 31 Mar 2015 9:30 pm SBP wrote: > Anyone else has come across this problem ? Maybe I need to post this in the > developer mailing list to get their feedback. > > I am really hoping that other users would also see the same behaviour when > they are using raster images. > > Regards, > Sitansu > kCube > > > > -- > View this message in context: http://osgeo-org.1560.x6. > nabble.com/Rendering-of-Images-in-QGIS-2-6x-tp5195147p5196223.html > Sent from the Quantum GIS - User mailing list archive at Nabble.com. > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-user > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Rendering of Images in QGIS 2.6x +
Anyone else has come across this problem ? Maybe I need to post this in the developer mailing list to get their feedback. I am really hoping that other users would also see the same behaviour when they are using raster images. Regards, Sitansu kCube -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Rendering-of-Images-in-QGIS-2-6x-tp5195147p5196223.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Rendering of Images in QGIS 2.6x +
Yes I tried changing those to all combinations available on 6 different laptops and then went back versions to find that this was not happening in 2.2. Regards, Sitansu On Sat, Mar 28, 2015 at 10:07 AM, Alex Mandel wrote: > This might be a side effect of Caching or Multi-core rendering. Try > toggling the modes in Settings->Options->Rendering and report back. > > Thanks, > Alex > > On 03/27/2015 07:41 PM, SBP wrote: > > Maybe my subject line was not clear. > > There is a Bug is QGIS versions post 2.2 wherein raster images have > issues > > getting rendered. They appear and disappear as we zoom in or pan. > > > > I have captured a video comparing the behaviour in 2.2 and 2.8 on a > windows > > 7 machine. > > This bug is making it impossible to use QGIS for interpreting raster > images. > > > > Video: https://www.youtube.com/watch?v=Wjly6C445uE&feature=youtu.be > > > > I will post this on a separate thread if I am not able to get any > responses. > > > > Regards, > > Sitansu Pattnaik > > kCube Consultancy Services > > > > > > > > -- > > View this message in context: > http://osgeo-org.1560.x6.nabble.com/Rendering-of-Images-in-QGIS-2-6x-tp5195147p5195836.html > > Sent from the Quantum GIS - User mailing list archive at Nabble.com. > > ___ > > Qgis-user mailing list > > Qgis-user@lists.osgeo.org > > http://lists.osgeo.org/mailman/listinfo/qgis-user > > > > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Rendering of Images in QGIS 2.6x +
This might be a side effect of Caching or Multi-core rendering. Try toggling the modes in Settings->Options->Rendering and report back. Thanks, Alex On 03/27/2015 07:41 PM, SBP wrote: > Maybe my subject line was not clear. > There is a Bug is QGIS versions post 2.2 wherein raster images have issues > getting rendered. They appear and disappear as we zoom in or pan. > > I have captured a video comparing the behaviour in 2.2 and 2.8 on a windows > 7 machine. > This bug is making it impossible to use QGIS for interpreting raster images. > > Video: https://www.youtube.com/watch?v=Wjly6C445uE&feature=youtu.be > > I will post this on a separate thread if I am not able to get any responses. > > Regards, > Sitansu Pattnaik > kCube Consultancy Services > > > > -- > View this message in context: > http://osgeo-org.1560.x6.nabble.com/Rendering-of-Images-in-QGIS-2-6x-tp5195147p5195836.html > Sent from the Quantum GIS - User mailing list archive at Nabble.com. > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-user > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Rendering of Images in QGIS 2.6x +
Maybe my subject line was not clear. There is a Bug is QGIS versions post 2.2 wherein raster images have issues getting rendered. They appear and disappear as we zoom in or pan. I have captured a video comparing the behaviour in 2.2 and 2.8 on a windows 7 machine. This bug is making it impossible to use QGIS for interpreting raster images. Video: https://www.youtube.com/watch?v=Wjly6C445uE&feature=youtu.be I will post this on a separate thread if I am not able to get any responses. Regards, Sitansu Pattnaik kCube Consultancy Services -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Rendering-of-Images-in-QGIS-2-6x-tp5195147p5195836.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Rendering of Images in QGIS 2.6x +
Dear All, I found that 2.6x and 2.8x versions randomly stop displaying an image while we are panning or zooming in/out. Then panning the image or sometimes zooming in will again display the image. This appears randomly. I was testing with a Landsat image which had 7 bands stacked. I tested this behaviour in Windows 8x/7/XP. The image size was ~300 mb. The same issue was seen when I created external pyramids and when I tweaked the rendering options. I tested this in a laptop with 8GB RAM and 2 GB RAM too. But I did not see this problem in 2.2x which I use for training/production. I saw that several new options were added to "Rendering" under Settings--> Options. Can anyone else test this and confirm that this behaviour is repeatable. I was able to get this across 6 laptops. Thank you for your time. If required I can also post a video of this behaviour. Regards, Sitansu kCube Consultancy Services -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Rendering-of-Images-in-QGIS-2-6x-tp5195147.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
