[Qgis-user] Call for vote for new QGIS community voting member.
Dear QGIS Community This is a call for votes for new QGIS community voting members. Please read the instructions carefully and establish your eligibility to vote which I repeat here for your convenience: "Only community members with commit rights to an official QGIS git repository or with write access in transifex are eligible to vote.” The voting form is here. https://forms.gle/ZXwmRSHGZiLoeLESA Incoming community voting members will be selected based on the number of nominations they receive. The above form will close on 13.02.22. If you play an organisational role (e.g. documentation lead, translation lead), please forward this email to your committers. If you have any questions about the process please do not hesitate to contact me. Thank you, Regards Marco -- Marco Bernasocchi QGIS.org Chair OPENGIS.ch CEO http://berna.io ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Readonly gpkg
Just as a general comment with GPKG, I am aware there were some concerns expressed in this community about issues with this format. Are these issues being progressed? I use spatialite in preference to gpkg in order to work around these issues. On 1/02/22 06:26, Even Rouault wrote: Resolution attempt in https://github.com/qgis/QGIS/pull/47098 Even ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Readonly gpkg
Resolution attempt in https://github.com/qgis/QGIS/pull/47098 Even Le 11/01/2022 à 15:10, perg...@gmail.com a écrit : I’ve packaged a number of read-only layers (e.g. contours, watercourses) for my area of interest into one gpkg. However, QGIS writes changes to this gpkg every time it is opened, even if the layers themselves are never edited. I think this is related to SQLite wal journaling. It’s an annoyance since it’s a large file that gets unnecessarily reuploaded in every incremental backup, and when I’m in the field, that’s sometimes over a bad 3G cell connection. I’ve tried making the gpkg read-only, which hasn’t crashed anything in brief testing and generates no warnings. However, it feels risky, and clearly QGIS or OGR aren’t fully happy, since the temporary shm and wal files don’t get deleted on exit. So I’m hesitant to continue doing this for fear of a crash when I’m actually doing something useful. Is there a better way to tell QGIS to not write to a gpkg in which all layers are only being accessed read-only? Thanks! --- Martin Pergler ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info:https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe:https://lists.osgeo.org/mailman/listinfo/qgis-user -- http://www.spatialys.com My software is free, but my time generally not. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[QGIS-it-user] Azioni QGIS con Python
Buongiorno Non conosco sufficientemente python pertanto chiedo un Vostro supporto per completare il codice di un'azione: - seleziono una cella della tabella attributi del layer attivo - leggo il testo contenuto nella cella con s='[% @field_value %]' - come posso leggere il contenuto di un'altra cella dello stesso record ? Grazie Franco Cazzola ___ QGIS-it-user mailing list QGIS-it-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/qgis-it-user
Re: [Qgis-user] check for coordinates in an attribute table for shapefile layer
Dear Maria, OK, I understand. So you have to do the reverse: update your shapefile geometries with the erroneous updated coordinates in the attribute table. Like Nicholas, I supposed you have to handle point data. You can transfer the coordinates from your table to your geometries with copy and paste. Either you still remember the entries on which you have applied changes to or you may calculate the differences between actual values (geometries) and desired values (attribute table) in new columns of your table to systematically identify them Set your point layer to edit mode (toggle editing), the digitizing toolbar should be visible. Select the point you want to apply an update with a right mouse click and the vertex editor appears. There you can transfer your desired coordinates with copy and paste. Up to now I don't know an easy method to update the actual geometry with values in the attribute table automatically (only the reverse). If you are stuck, consider to contact Nicolas via zoom. Regards, Christine Gesendet: Montag, 31. Januar 2022 um 09:48 Uhr Von: "Maria Shinoto" An: "geo.gu...@web.de" Betreff: Re: [Qgis-user] check for coordinates in an attribute table for shapefile layer Dear Christine, Thank you for your immediate help. I thought of exporting an importing in the worst case. Since I have already prepared a map / print layout with lots of individual positioning of point labels, I wanted to avoid it if possible. I now had a look on the geometry tools. Thanks a lot, Maria > Am 31.01.2022 um 17:22 schrieb geo.gu...@web.de: > > Dear Maria, > > if you export your shapefile to csv and reimport it in QGIS with your X and Y values as the valid coordinates again, your problem should be solved. > > It's possible and better to edit the geometry directly with the geometry tools. > > Regards, Christine > > > Gesendet: Montag, 31. Januar 2022 um 09:03 Uhr > Von: "Maria Shinoto" > An: qgis-user@lists.osgeo.org > Betreff: [Qgis-user] check for coordinates in an attribute table for shapefile layer > Hi, > > I imported a .csv file with about 100 datasets and created a shapefile layer from the X and Y data. > > Then I did something stupid. I deleted some duplicates and changed the X and Y data slightly in three or four data sets, and I created a new row with one new data point and X and Y data. > > What I did no realize is that the data in X and Y will not be accepted automatically as geo coordinates. > > Now I have a map without the full set of points, and I do not know the following: > > 1. How do I check quickly, which rows need ne geocoordinates from the X and Y columns? > > 2. When I figured which data set need updates, how do get the X and Y data into their geocoordinates and get them shown on the map. > > Thanks, > Maria > > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] check for coordinates in an attribute table for shapefile layer
Hi, See below Nicolas Cadieux https://gitlab.com/njacadieux > Le 31 janv. 2022 à 03:09, Maria Shinoto > a écrit : > > Hi, > > I imported a .csv file with about 100 datasets and created a shapefile layer > from the X and Y data. By « dataset » I imagine you mean object like line, polygon and points? Since you only talk about x and y, I take for granted that you are talking about points. Do you still have the original .csv file? That would be useful. > > Then I did something stupid. I deleted some duplicates and changed the X and > Y data slightly in three or four data sets, and I created a new row with one > new data point and X and Y data. I guess you moved some points around in the .shp file, created a new x and y and updated the geometry from the new x and y? Can you use the same steps and update the geometry from the original x and y or did these disappear when you created the shape file? > > What I did no realize is that the data in X and Y will not be accepted > automatically as geo coordinates. > > Now I have a map without the full set of points, and I do not know the > following: > >1. How do I check quickly, which rows need ne geocoordinates from the X > and Y columns? If you have the original csv, you can use that remake the ordinal file, then, in the vector menu, you can substrat (difference I think, I’am not in front of a computer) one vector file from the other. The difference between both files will indicate what changed. You can also regenerate the new x and y fields (like testY and testY) using the field calculator and $x and $y functions. If you don’t have geometries, then those field will come up as empty. > >2. When I figured which data set need updates, how do get the X and Y data > into their geocoordinates and get them shown on the map. > > Thanks, > Maria > I you are still stuck, we could zoom. I am in Montreal time. Nicolas > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] check for coordinates in an attribute table for shapefile layer
Dear Maria, if you export your shapefile to csv and reimport it in QGIS with your X and Y values as the valid coordinates again, your problem should be solved. It's possible and better to edit the geometry directly with the geometry tools. Regards, Christine Gesendet: Montag, 31. Januar 2022 um 09:03 Uhr Von: "Maria Shinoto" An: qgis-user@lists.osgeo.org Betreff: [Qgis-user] check for coordinates in an attribute table for shapefile layer Hi, I imported a .csv file with about 100 datasets and created a shapefile layer from the X and Y data. Then I did something stupid. I deleted some duplicates and changed the X and Y data slightly in three or four data sets, and I created a new row with one new data point and X and Y data. What I did no realize is that the data in X and Y will not be accepted automatically as geo coordinates. Now I have a map without the full set of points, and I do not know the following: 1. How do I check quickly, which rows need ne geocoordinates from the X and Y columns? 2. When I figured which data set need updates, how do get the X and Y data into their geocoordinates and get them shown on the map. Thanks, Maria ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] check for coordinates in an attribute table for shapefile layer
Hi, I imported a .csv file with about 100 datasets and created a shapefile layer from the X and Y data. Then I did something stupid. I deleted some duplicates and changed the X and Y data slightly in three or four data sets, and I created a new row with one new data point and X and Y data. What I did no realize is that the data in X and Y will not be accepted automatically as geo coordinates. Now I have a map without the full set of points, and I do not know the following: 1. How do I check quickly, which rows need ne geocoordinates from the X and Y columns? 2. When I figured which data set need updates, how do get the X and Y data into their geocoordinates and get them shown on the map. Thanks, Maria ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Drop the points and show only clusters
Hello Krishna, the reason für all the ‘1’ values is obviously that the algorithm seeking for the nearest points always finds the original point itself. When I first used the expression that I had suggested as a solution for your problem, this didn´t happen and the original point wasn´t taken into accont, but when I later tried it with another point layer, I got the same result as you with ‘1’ for every point feature. When I tried to set up a filter expression by retrieving a list of closest neighbours and then skip the first element (the original point), I realized that the algorithm does not return the neighbour points in the order of their distance. This seems to be a bug, and it means that you can´t solve this task in that way. So I suggest you create a second layer, for example the buffer polygon Harrissou s. suggested. Regards, Simon Von: krishna Ayyala Gesendet: Samstag, 29. Januar 2022 18:36 An: Simon Dietmann Cc: qgis-user Betreff: Re: [Qgis-user] Drop the points and show only clusters Dear Simon, Thanks for your reply. I have used the "overlay_nearest" formula for my points layer. Irrespective of whatever number I assign for "max_distance" I am getting the value 1 for the new field for all the 1000 records of the points layer. i.e. I am not getting 0 value for any of the records. I tried for various distances starting from 1 upto 1000. For ex:1,5,10,100,500,1000 etc. My map units are set to meters. Regards. On Fri, Jan 28, 2022 at 1:53 AM Simon Dietmann wrote: Hi Krishna, you could also use the field calculator to create a Boolean field with the overlay_nearest function, like: overlay_nearest( '' , max_distance:= 1000) This will generate a field that contains a ‘1’ if the point has a neighbour within the given distance and a ‘0’ if not. Then show only points that have a ‘1’ in this field. Greetings, Simon Von: Qgis-user Im Auftrag von krishna Ayyala Gesendet: Freitag, 28. Januar 2022 05:12 An: qgis-user Betreff: Re: [Qgis-user] Drop the points and show only clusters Helo I watched the video in the weblink below. I was able to get up to the layer styling step. But,I am unable to figure out how to accomplish this task. I am herewith attaching the sample data of 1000 points. Can anyone please guide me the steps so that I will have only those points that are within 1000ft of each other and drop the rest of the points? Regards. https://anitagraser.com/2017/06/13/even-more-aggregations-qgis-point-cluster-renderer/ On 28/01/22 09:25, krishna Ayyala wrote: > Hello, > I have a point shape with about 10,000 points. On the map, I wish to > show only those points that are within 1000ft of each other and drop > the rest of the points. All I am trying to see is only the clusters. > Can anyone help please? > > Regards. >___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
