[Qgis-user] Python error upon loading and in every project

I have not needed to consult the QGIS users Mailing List for some time, but after changing my computer I had an issue with loading 3.16.11 to the new machine. Upon opening an existing project QGIS omitted to display the thumbnails of recent projects and flagged an issue with Python. If anyone can

Re: [Qgis-user] Does QGIS3 freezes more often than QGIS2 ?

I used to get a lot of similar freezes on QGIS 3. It was traced to the browser window being full of files that I never would use for QGIS. So if your browser window within QGIS has a lot of irrelevant stuff, you could try clicking on each one and selecting, "Hide from Browser" option. This should

Re: [Qgis-user] QGIS 3.10 not responding

I used to have this problem but this now seems to have gone away, when a solution was suggested on this forum. The solution was that the browser panel was full of discs and files that had nothing to do with QGIS. Right click in the QGIS browser and select "Hide from browser" everything that you

[Qgis-user] Scalebar issues on QGIS 3.10.2

I am making maps using OSGB36 which is 27700 CRS. My issue comes when I use the Print Layout option. In one case the Print Layout simply did not draw a scalebar, but left a pair of dotted lines on the layout. So I left it out. In another case the scalebar was drawn but the scale of kilometres was

Re: [Qgis-user] QGIS 3.10.1A Geotiff Coordinate Transform Problem

I just downloaded and opened the new QGIS version 3.10.2 and clicked on Help/About which gives a list of all the installed bits and pieces. This release of Version 3.10.2 will still probably be no good for transforms as it still apparently includes the buggy PROJ 6.2.1 and GDAL 3.0.2. I thought

Re: [Qgis-user] QGIS 3.10.1A Geotiff Coordinate Transform Problem

I can confirm that if you use the Windows 10 package, then the CRS procedures are completely full of bugs on point release 3.10.1. I get terminal issues with the transform from WGS84 to OSGB 36, the standard National Grid here in the UK. Try the next point release 3.10.2 due any day now, which

Re: [Qgis-user] QGIS 3.4.2 & 3 still very slow to work in Windows 10

Many thanks to Micha Silver -2. I have found that hiding directories from the browser has apparently stopped all my issues with " Qgis not responding" hangups. I have got all my QGIS projects on one hard drive so I have hidden everything but that drive, including hiding the C drive. Windows seems

Re: [Qgis-user] QGIS 3.4.2 & 3 still very slow to work in Windows 10

Just to update this issue. I am still getting slow start ups and qgis not responding freeze ups just as bad on QGIS 3.8.3. Every version since 3.4.1 have given these problems. I have gone through all the files from old versions that I could find and deleted them. I have tried new profiles,

Re: [Qgis-user] Loss of scale after clipping

Hi Nick, I thought you were onto something with that suggestion of incompatible CRS settings. The coastal file that I had clipped came from a MapInfo source and the CRS was interpreted by QGIS as a custom CRS rather than as EPSG 27700. Although the MapInfo CRS was meant to be the GB National Grid.

Re: [Qgis-user] Loss of scale after clipping

Oh Dear, I have just tried to follow the tip from Nicolas above about reloading files into a new empty project. This time this does not work. I have just loaded a county outline and a coastal line with default styling and the scale bar still says 0:1. Now What? Any ideas? Regards to all. NB QGIS 3

Re: [Qgis-user] Loss of scale after clipping

This scale problem has just raised its head again in a different context. I have been experiencing the 40 second loading time which a few other people have also reported, ever since 3.4.1, when this all started. In addition I often get QGIS not responding messages most often when clicking on

Re: [Qgis-user] Loss of scale after clipping

Nicolas Cadieux messaged me as follows: "Could this just be a GUI thing? Try closing QGIS and opening the file in a new empty project. Nicolas ." I replied as follows: "Hi Nicolas, I have done what you said. Although it is a bit laborious to load everything into a new project, it does seem to

Re: [Qgis-user] Loss of scale after clipping

I have clipped rasters and vector files many times before with no problems. Go to Raster/Extraction/Clip raster by mask layer. The mask layer is something I draw. IE Make new vector polygon, add feature and then draw a box around the area I want to include in my clip. -- Sent from:

[Qgis-user] Loss of scale after clipping

I am finding that after clipping a raster the resulting clipped file has no scale. Or rather the scale says 0:1 and stays at 0:1 whatever the zoom level. This persists for all the map, whatever layers are on or off. Can anyone help, please? I am running 3.8.3 on Widows 10. -- Sent from:

[Qgis-user] QGIS 3.4.4 still giving delays and “not responding” issues on Windows 10

I did love using QGIS until 3.4.1 came along. Ever since I have been plagued by the “Not responding” message and very slow start up. (See my previous posts “QGIS 3.4.3 becoming unusable for me on Windows 10,” and “QGIS 3.4.2 still very slow to work in Windows 10”) However, when it came to 3.4.4 it

Re: [Qgis-user] QGIS 3.4.3 becoming unusable for me on Windows 10

Thanks for the advice fellas. Unfortunately being an end user, I never usually delve into the guts of QGIS. Advice received is : "Can you try to start QGIS with the following options: qgis --noversioncheck --noplugins --hide-browser " I have discovered the option to 'Check version no on

[Qgis-user] QGIS 3.4.3 becoming unusable for me on Windows 10

Ever since release 3.4.1 QGIS has been a disaster for me, running on Windows 10. After I upgraded to 3.4.2 I still had problems with everything running very slowly. (See my post below - QGIS 3.4.2 still very slow to work in Windows 10 by David Addy) Now on 3.4.3 the same issues seem

Re: [Qgis-user] QGIS 3.4.2 & 3 still very slow to work in Windows 10

Unfortunately these slow responses continue into 3.4.3 with no improvement. -- Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info:

Re: [Qgis-user] QGIS 3.4.2 still very slow to work in Windows 10

Hi Alberto, Startup time with a blank project is 30 seconds here with Kaspersky security ON. With Kaspersky turned off, start up time is still 28 seconds - barely any difference. Kaspersky is generally known for being a quite low overhead. -- Sent from:

Re: [Qgis-user] QGIS 3.4.2 still very slow to work in Windows 10

Hi Nyall, In answer to your query, all my files are held on my desktop PC, with specs as follows: CPU: Intel Core i7-4790K GPU: Nvidia Quadro K2200 SSD: Samsung 840 Evo 250GB HDD: Seagate Barracuda 7200.14 2TB HDD: Seagate Barracuda 7200.14 2TB USB: WD My Book 1230 4TB RAM: Corsair

Re: [Qgis-user] QGIS 3.4.2 still very slow to work in Windows 10

Hi Nyall, Thanks for your additional comment. When I was autoloading my most recent project at startup QGIS was taking up to a minute to open itself and load the project. Other saves and actions like opening a layer attribute table were also very slow. After changing my settings to open with a new

Re: [Qgis-user] QGIS 3.4.2 still very slow to work in Windows 10

Thanks to everybody, but to Anita and Nyall in particular, for your comments. It is very helpful to know that my issues are just minor quirks rather than a more serious flaw. QGIS 3 is definitely a big leap forward and I can now plough onwards with these reassurances. I would rather avoid going to

Re: [Qgis-user] QGIS 3.4.2 still very slow to work in Windows 10

Hi Patrick, Thanks for your comments. It all helps to encourage me. I have now discovered that the User Manual (development version) emphasises the fact that there are changes to the node tool in version 3, and how the dragging of the old method is now replaced by two clicks. Anita's book does not

Re: [Qgis-user] QGIS 3.4.2 still very slow to work in Windows 10

Thanks for all your comments. I think things were pretty good using 3.2, and I had got used to using Version 3 with geopackage etc, and going back to 2.18 was rather painful for me. These hanging up problems for me really started in 3.4. I have just found that changing my Settings to make QGIS

[Qgis-user] QGIS 3.4.2 still very slow to work in Windows 10

I have always loved QGIS and I have extolled its virtues to local historians and archaeologists in my area. I have had to keep quiet about it lately. I was somewhat relieved to hear a comment on a recent video of the Oceania meeting that QGIS 3.4.1 was a dud release as it caused Windows to crash

Re: [Qgis-user] QGIS 3 clipping raster with a polygon - problem

I have upgraded to 3.0.3 and tried to clip another file. Oh Joy! It worked. However I was a bit disconcerted by the GDAL readout at the bottom of the box which described output to a temp file even though I had specified a new filename and location. However, the new file name was actually applied.

Re: [Qgis-user] QGIS 3 clipping raster with a polygon - problem

In case it helps, here is a screengrab of the QGIS 3 input box. There are no spaces in my file names. -- Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html ___

Re: [Qgis-user] QGIS 3 clipping raster with a polygon - problem

Hi Nyall, Thanks very much for looking at this. The two versions are as follows: From QGIS 2.18.16 I get: gdalwarp -q -cutline "D:/My Pictures/QGIS Projects/Payne calibration/payne_clipper.shp" -tr 0.639640252898 0.639640252898 -of GTiff "D:/My Pictures/QGIS Projects/Payne

Re: [Qgis-user] QGIS 3 clipping raster with a polygon - problem

I have had another go with another dataset. I have tried both these algorithms in QGIS 3.0.2: 1. Gdal ->" Raster extraction" -> "Clip raster by mask layer" 2. Saga -> "Vector <-> raster" -> "Clip raster with polygon" Both give an error message. In the case of GDAL it is :"GDAL command

[Qgis-user] QGIS 3 clipping raster with a polygon - problem

I have always been able to clip a raster using the mask made by drawing a polygon around the required area in QGIS 2. However, in QGIS 3 the process does not work the same way. I cannot figure out how to make a new output file, and whatever I try results in no comprehensible output. I have just

[Qgis-user] QGIS 3 initial settings from QGIS 2

I was pleased to download QGIS3 last night, and I clicked on the option to include my existing settings from QGIS2. However, when opening Q3 it seemed to be in the full naked default situation. There were no "Recent Projects" and my local CRS was not set to OSGB 36. The CRS is easily corrected of

[Qgis-user] Plea for help with monochrome maps for publication

Most of us prepare our maps using colours for different outlines or different colour shades of fill for polygons. However, there are still occasions where maps produced for publication in books or magazines will end up as shades of grey to save the cost of colour printing. This is certainly the

Re: [Qgis-user] GDAL/OGR 2.0 in OSGeo4W

Hi Nyall, This issue was raised a year ago in bug report 11980, which is closed but contains all the issues. Bo Victor then issued an enhancement request number 12022, which is still open. I hope this helps, Best regards, David -- View this message in context:

Re: [Qgis-user] Rule based styling issue

Hi again, I see that Alexandre cannot reproduce this issue. However, I am now using QGIS 2.12.3 and for me, on Windows 10 Pro, 64 bit, it is still a problem, even with a different project and different fields. The issue of 'IS NOT NULL' still produces the reverse incorrect results when using the

Re: [Qgis-user] GDAL/OGR 2.0 in OSGeo4W

This is good news indeed for all UK local authorities who use MapInfo. Will we now be able to use the extra commands of “TAB_APPROX_GEOTRANSFORM YES” for all those slightly dodgy tab with tiff files created over the years? Although we can use QGIS to convert these into Geotiffs, it is much more

Re: [Qgis-user] Rule based styling issue

As this issue remains unresolved, should I post it as a bug? -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Rule-based-styling-issue-tp5227403p5238251.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. ___

[Qgis-user] Rule based styling issue

I have a query about the use of Rule based styles. I have a layer of parishes within a county area, which is styled with a transparent fill. Below it I have a copy layer of the same data. In both layers the attribute table has a column headed WAPENTAKE, which holds string data of 25 characters

Re: [Qgis-user] Rule based styling issue

Hi, First up comes how the styling should look. Now two views using the Expression builder, showing the result:

Re: [Qgis-user] Rule based styling issue

Hi all, Thanks for the suggestions and ideas. I have tried deleting the "no filter" rule, as suggested, but it makes no difference. I have also tried both the 'Add rule' buttons and the 'Amend rule ' button to bring up the Expression builder. I have used the 'Amend Rule' on the "no filter" line

[Qgis-user] Problem styling OS Mastermap

I have been trying to load and view the sample of OS Mastermap provided on the OS website. Although I can load it successfully into QGIS 2.0.1, under Windows 7 Pro, I cannot get any of the published styles to work. I have tried the OS provided style, and the Warwickshire County Council styles from

Re: [Qgis-user] Problem correctly reading Mapinfo TIF and TAB files into QGIS

Hi Bo Victor, Thanks for your reply to my enquiry. The two files referred to in the discussion are attached. I hope that this helps you. I do not know how to make these generally available to the whole QGIS list, so I am sending them to you off list. Best wishes, David David Addy 10

[Qgis-user] Problem correctly reading Mapinfo TIF and TAB files into QGIS

In this area of the UK, a number of local authorities use Mapinfo for their Archaeology and Record Office services. This often involves reading historical maps in order to compare with current conditions on the ground. All such maps are calibrated within Mapinfo, and are usually in the form of

Re: [Qgis-user] New QGIS PSC Members

g_sherman wrote Nominations for the QGIS PSC closed at 00:00 UTC on August 25, 2013 [1]. The PSC is now composed of: * Chair - Gary Sherman * Community Advisor - Otto Dassau * Design Advisor - Anita Graser * Financial and Marketing Advisor - Paolo Cavallini *