Hello all:
Is there anybody that can tell what is the purpose of having a "Precision" parameter on Vector | Research Tools | Select by Location? Where I can find/read about how this "Precision" parameter works? ________________________________ Iván Santiago GIS Specialist Information Technologies PR Office of Management and Budget 787.725.9420 x 2409 http://gis.pr.gov/<http://gis.pr.gov/> ________________________________ De : Qgis-user <qgis-user-boun...@lists.osgeo.org> de la part de qgis-user-requ...@lists.osgeo.org <qgis-user-requ...@lists.osgeo.org> Envoyé : 14 septembre 2016 09:55 À : qgis-user@lists.osgeo.org Objet : Qgis-user Digest, Vol 127, Issue 36 Send Qgis-user mailing list submissions to qgis-user@lists.osgeo.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.osgeo.org/mailman/listinfo/qgis-user or, via email, send a message with subject or body 'help' to qgis-user-requ...@lists.osgeo.org You can reach the person managing the list at qgis-user-ow...@lists.osgeo.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Qgis-user digest..." Today's Topics: 1. Re: QField error data source is not valid (Matthias Kuhn) 2. Re: Map composer. Wrong map scale (Carlo Cormio) 3. Re: xml metadata in PostGIS table (Richard McDonnell) 4. Re: Ubuntu updating instructions (Bernd Vogelgesang) 5. Organizing considering Dates (Bia) 6. Re: Raster calculator script failing for multiple rasters (Nicolas Cadieux) 7. Re: Map composer. Wrong map scale (Nicolas Cadieux) 8. Re: Organizing considering Dates (Tyler Veinot) ---------------------------------------------------------------------- Message: 1 Date: Wed, 14 Sep 2016 10:02:33 +0200 From: Matthias Kuhn <matth...@opengis.ch> To: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] QField error data source is not valid Message-ID: <ceb6c459-d6d6-6345-5538-dac129bf6...@opengis.ch> Content-Type: text/plain; charset=utf-8 Hi Reginald, It's most likely that your project is not portable (i.e. paths inside are not relative). The documentation can be found here: http://www.qfield.org/docs/ And about the portable project in particular here: http://www.qfield.org/docs/project-management/index.html Best regards Matthias On 09/14/2016 09:41 AM, Reginald Carlier wrote: > Hi, > > > > I’m testing QField. On my desktop I made a project with a shape point > layer made to inventarise streetbenches. > > Then I put this project in the storage folder (DCIM) of my android phone. > > On my phone I open QField and I browse to the project and I open it. > > In stead of a map I see only a point marker in QField. > > The error message I see is: OGR Data source is invalid() > > What am I doing wrong? > > Also I could not find any documentation on QField. Any pointers in this > direction? > > > > Regards, > > > > > > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > ------------------------------ Message: 2 Date: Wed, 14 Sep 2016 10:20:27 +0200 From: Carlo Cormio <carlo.cor...@gmail.com> To: Nyall Dawson <nyall.daw...@gmail.com> Cc: qgis-user <qgis-user@lists.osgeo.org> Subject: Re: [Qgis-user] Map composer. Wrong map scale Message-ID: <fe38638b-02b6-b3d4-34c4-5c6d03f18...@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed No, I'm using QuickMapServices plugin Il 14/09/2016 09:39, Nyall Dawson ha scritto: > On 14 September 2016 at 17:32, Carlo Cormio <carlo.cor...@gmail.com> wrote: >> Dear all, >> >> I'm using QGIS 2.12.3 on Windows 10. After printing a map using QGIS map >> composer, I checked some distances and found that map scale was different >> from the expected one. >> I set ISO A3, portrait, as page size. QGIS project has EPSG:3857 (due to the >> use of a google satellite layer), but most of the other layers have >> EPSG:32633. I tell you this in case it could affect prints. >> Map scale in print composer was set to 1:5000, but when I measured distances >> (I also put a scale in the composition) I found it was more or less 1:3500. >> The strange thing is that the ratio between the two scales is 1,41, that is >> exactly ISO A3:A4 ratio. >> What did I do wrong? Is there a setting I missed? > Are you using the OpenLayers plugin? > > Nyall > > >> Hope I gave all the necessary information. >> >> Regards, >> >> Carlo >> _______________________________________________ >> Qgis-user mailing list >> Qgis-user@lists.osgeo.org >> List info: http://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user ------------------------------ Message: 3 Date: Wed, 14 Sep 2016 09:43:09 +0100 From: Richard McDonnell <richard.mcdonn...@opw.ie> To: "Schweitzer, Peter" <pschweit...@usgs.gov> Cc: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] xml metadata in PostGIS table Message-ID: <57d90d9d.6000...@opw.ie> Content-Type: text/plain; charset="utf-8"; Format="flowed" Peter, Yes this is almost what I am looking for, 80% there....... you appear to be copying and pasting the whole xml, as opposed to reading a file directly to postgres, which is what I need. What I relay need to do is create a batch file for windows, which I can drop into the folder with the xml's and batch insert. Unfortunately, my knowledge of batching is not as good as I would like. The other option, even more daunting, is to utilise Python to do the batching. Thanks anyway for your help, its a better start, than the rest of the web was offering!! Regards, Richard. On 13/09/2016 17:28, Schweitzer, Peter wrote: > Richard, > > In PostgreSQL, I store some whole documents as XML, using > > create table something ( > rec_id integer, > record xml > ); > > and then insert like this: > > insert into something (rec_id,record) values ( 1,XMLPARSE (DOCUMENT > '<?xml version="1.0 encoding="UTF-8"?><...')); > By defining the field "record" as xml, I can use XML functions within > PostgreSQL to look at the contents (though I rarely do this). But the > parsing step also catches improper XML and rejects the insert with an > error message, very helpful. > > Is this the sort of information you're after? > > Peter > > On Tue, Sep 13, 2016 at 11:08 AM, Richard McDonnell > <richard.mcdonn...@opw.ie> wrote: >> Hello all, >> I apologise if this is the incorrect forum for this question, but... >> Im looking to create a table and I want to insert the xml as an attribute. >> Anyone who uses the database stored styling in QGIS will have an idea what >> Im on about. >> I have thousands of these xml files and I want to insert the contents of >> each file. >> I have looked, but cant find it anywhere about the whole document in one >> field. >> Any help appreciated. >> Regards, >> >> Richard. >> >> OPW - Ag féachaint don am atá le teacht - Ag caomhnú ón am atá thart >> OPW - Looking to the future - Caring for the past >> >> *********************************************************** >> Email Disclaimer: http://www.opw.ie/en/disclaimer/ >> >> _______________________________________________ >> Qgis-user mailing list >> Qgis-user@lists.osgeo.org >> List info: http://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > > -- *_Richard McDonnell_* *GIS Specialist PgD GIS AssocSCSI* *OPW FRM Data Management* *52 Stephens Green, Dublin 2.* TEL: 01 6476543 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20160914/f57d0144/attachment-0001.html> ------------------------------ Message: 4 Date: Wed, 14 Sep 2016 12:02:56 +0200 From: "Bernd Vogelgesang" <bernd.vogelges...@gmx.de> To: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] Ubuntu updating instructions Message-ID: <op.ynrx66uxl2i25i@bernd-terra-pc> Content-Type: text/plain; charset="utf-8"; Format="flowed"; DelSp="yes" Am 13.09.2016, 16:51 Uhr, schrieb Blumentrath, Stefan <stefan.blumentr...@nina.no>: > > And if I may add: > > Even if the users are aware of the fact that ubuntugis-unstable contains > the current releases, it can be hard to impossible >to convince a > GIS-ignorant system administrator that it is OK to install “unstable” > packages. > > > But this issue is not a QGIS issue I guess... > > > Actually, this problem could be easily solved, if there was only a single line of explanation added next to each of the repositories in the install instructions, so the uneducated or doubtful can be told and convinced which package ships which flavour. And yes, I was told to change this myself and given privileges to do so a while ago, but I couldn't find the energy to fiddle myself into the system. And I am still confused myself, cause behaviour seems to change from release to release a bit. At the moment, I can hardly write cause my right hand is in plaster and writing and pushing a mouse is a nightmare. So could not some less handicapped and more literate guy add some explanations to the website? Cheers Bernd > > From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of > Randal Hale > Sent: 13. september 2016 16:45 > To: qgis-user@lists.osgeo.org > Subject: Re: [Qgis-user] Ubuntu updating instructions > > > > > On 09/13/2016 10:23 AM, Jürgen E. Fischer wrote: >> Hi Randal, >>On Tue, 13. Sep 2016 at 00:21:21 -0400, Randal Hale wrote: >>> It's a little bit confusing. There are like three repositories: >>> stable, unstable, and testing. Testing you don't want (unless you >>> want to test packages). Typically stable is a bit older. Unstable is >>> current. Which doesn't really make sense - but that's the way it is. >>Not like it matters much in this case. >>We have packages in qgis.org/debian/ against the plain versions of the >> distributions (debian and **ubuntu**) and in qgis/ubuntugis/ packages >> against >> newer dependencies from - and only from - ubuntugis-unstable. >>Looks like it's hard for people to accept that there are also ubuntu >> packages >> in a directory called debian and that probably makes them jump on the >> other >> because it has ubuntu in it's name. > > I was thinking about it last night (and I was up way to late) and it is > a bit confusing for the casual user. They've installed Ubuntu (or > mint/debian/>xubuntu/etc) and they may not understand ubuntu is based > off debian. So like you said - they see debian but want to use Ubuntu. > They go to >UbuntuGIS and they see the repositories for UbuntuGIS and > the choice is unstable (and no one likes unstable software) and stable > (which doesn't >contain the newest software). So you end up going "Use > Unstable because it's stable and current". >> >>> Under my /etc/apt/sources.list.d directory I made a qgis.list file >>> and put the following in there: >>>deb http://qgis.org/debian xenial main >>> deb http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu >>> xenial main >>Why? That are the packages not based on ubuntugis with the >> dependencies from >> ubuntugis. > > Do I have this wrong? I thought I had the repositories for the install > correct based off the directions on qgis.org. Which I could completely > have it >wrong. With the above repos I'm getting QGIS 2.16.x and GDAL > 2.1.x. >>Jürgen >> >> >> >> >> _______________________________________________ >> Qgis-user mailing list >> Qgis-user@lists.osgeo.org >> List info: http://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > > > > ------------------- > Randal Hale > North River Geographic Systems, Inc > http://www.northrivergeographic.com > 423.653.3611 rjh...@northrivergeographic.com > twitter:rjhale -- Bernd Vogelgesang Siedlerstraße 2 91083 Baiersdorf/Igelsdorf Tel: 09133-825374 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20160914/515b41d6/attachment-0001.html> ------------------------------ Message: 5 Date: Wed, 14 Sep 2016 07:38:46 -0300 From: Bia <bia.fs2...@gmail.com> To: qgis-user@lists.osgeo.org Subject: [Qgis-user] Organizing considering Dates Message-ID: <cahaxw3cuqehwqine9_jv74_a3wsy1shbcfzw0n3feavqxdn...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" Hi, how can I to organize my table considering the date? I tried a expression but did not work. And after I wanna compare other columns to have a precision table. Thank you! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20160914/db9dd6fa/attachment-0001.html> ------------------------------ Message: 6 Date: Wed, 14 Sep 2016 04:56:19 -0700 (PDT) From: Nicolas Cadieux <nicolas.cadi...@archeotec.ca> To: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] Raster calculator script failing for multiple rasters Message-ID: <51ec5e00-264d-4772-9efd-78dab8d0e...@archeotec.ca> Content-Type: text/plain; charset="utf-8" Hi what kind of error are you getting? Is Qgis just crashing? Do you get an error message? Does the script work with smaller files? Nicolas Envoyé de mon iPad > Le 14 sept. 2016 à 02:05, R HG [via OSGeo.org] > <ml-node+s1560n5285719...@n6.nabble.com> a écrit : > > Thanks Nicolas for your reply. > > It does seem to be a memory problem, although it doesnt show the typical > "Memory Error". Without the script I could do that operation with the same > rasters. It involves four files and it is basically (a-b)*(c-d). > > GDAL also failed to load all files at once, so I finally splited the > operation in 3. (a-b) then (c-d) and finaly the multiplication of the > outputs. Its much more time consuming but it works. > > I still dont understand why using the tool directly from the UI it wrks and > it doesnt from the script. Will write back if I find the correct way. > >> >> >> Hi, >> >> I have never use the Qgis raster calculator via Python so I can't help >> there. What is the problem? Does Qgis crash? If so, the rasters may be to >> big for the memory. You mentioned the rasters were very big and that may >> be the problem. I recommend you test the calculation with smaller rasters. >> I think they are working for a solution for the big raster math. >> >> Saga and gdal calculator may help. Saga will probably try to load >> everything in memory an may crash. Gdal is made to calculate very big >> rasters but layers must be in the same CRS and have the same pixel posting >> and extent. You can use it direction in the Osgeo command prompt or via >> processing. >> >> Nicolas >> >> >> Envoyé de mon iPad >> >> > Le 13 sept. 2016 à 05:42, ROMAN HG [via OSGeo.org] <<a href="javascript:;" >> > onclick="_e(event, 'cvml', >> > 'ml-node+s1560n5285491...@n6.nabble.com')">ml-node+s1560n5285491h82@...> >> > a écrit : >> > >> > Hi, >> > >> > I'm trying to do raster calculations with big and multiple rasters. I am >> > new to python, but I managed to use the QgsRasterCalculator algorithm to >> > do the average of three rasters. >> > >> > The problem comes when I introduce a forth layer and try to do a more >> > complex equation: >> > >> > #calculating c4s ( [c1-c2]*[c0-c3] ) >> > >> > #F1_30 >> > A=processing.getObjectFromUri(path + "/F1_30c1.tif") >> > B=processing.getObjectFromUri(path + "/F1_c2.tif") >> > C=processing.getObjectFromUri(path + "/F1_30c0.tif") >> > D=processing.getObjectFromUri(path + "/F1_c3.tif") >> > >> > entries=[] >> > rasA=QgsRasterCalculatorEntry() >> > rasA.ref='A@1' >> > rasA.raster=A >> > rasA.bandNumber=1 >> > entries.append(rasA) >> > >> > rasB=QgsRasterCalculatorEntry() >> > rasB.ref='B@1' >> > rasB.raster=B >> > rasB.bandNumber=1 >> > entries.append(rasB) >> > >> > rasC=QgsRasterCalculatorEntry() >> > rasC.ref='C@1' >> > rasC.raster=C >> > rasC.bandNumber=1 >> > entries.append(rasC) >> > >> > rasD=QgsRasterCalculatorEntry() >> > rasD.ref='D@1' >> > rasD.raster=D >> > rasD.bandNumber=1 >> > entries.append(rasD) >> > >> > F1_30c4=QgsRasterCalculator('(( A@1 - B@1 ) * ( C@1 - D@1 ))', path + >> > '/F1_30c4.tif', 'GTiff', base.extent(), base.width(), base.height(), >> > entries).processCalculation() >> > >> > I think that the problem is recognising the formula. I have tried it on >> > the console doing several changes and it doesnt work. >> > >> > Is it possible to do this operation with QgsRasterCalculator?? Or how can >> > I use the gdal_calc algorithm or the saga raster calculator?? >> > >> > >> > Thanks all > > _______________________________________________ > Qgis-user mailing list > [hidden email] > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > > If you reply to this email, your message will be added to the discussion > below: > http://osgeo-org.1560.x6.nabble.com/Raster-calculator-script-failing-for-multiple-rasters-tp5285491p5285719.html > To start a new topic under Quantum GIS - User, email > ml-node+s1560n4125267...@n6.nabble.com > To unsubscribe from Quantum GIS - User, click here. > NAML -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Raster-calculator-script-failing-for-multiple-rasters-tp5285491p5285825.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20160914/0fc13c97/attachment-0001.html> ------------------------------ Message: 7 Date: Wed, 14 Sep 2016 05:02:21 -0700 (PDT) From: Nicolas Cadieux <nicolas.cadi...@archeotec.ca> To: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] Map composer. Wrong map scale Message-ID: <c97217db-c0bf-4d88-a37e-58d5867d6...@archeotec.ca> Content-Type: text/plain; charset="utf-8" Hi, Could the scale be tied to an different object or a hidden map window in your layout? If so, it could be giving you a scale for a different map window. Nicolas Envoyé de mon iPad > Le 14 sept. 2016 à 04:20, Carlo Cormio [via OSGeo.org] > <ml-node+s1560n5285755...@n6.nabble.com> a écrit : > > No, I'm using QuickMapServices plugin > > > Il 14/09/2016 09:39, Nyall Dawson ha scritto: > > > On 14 September 2016 at 17:32, Carlo Cormio <[hidden email]> wrote: > >> Dear all, > >> > >> I'm using QGIS 2.12.3 on Windows 10. After printing a map using QGIS map > >> composer, I checked some distances and found that map scale was different > >> from the expected one. > >> I set ISO A3, portrait, as page size. QGIS project has EPSG:3857 (due to > >> the > >> use of a google satellite layer), but most of the other layers have > >> EPSG:32633. I tell you this in case it could affect prints. > >> Map scale in print composer was set to 1:5000, but when I measured > >> distances > >> (I also put a scale in the composition) I found it was more or less 1:3500. > >> The strange thing is that the ratio between the two scales is 1,41, that is > >> exactly ISO A3:A4 ratio. > >> What did I do wrong? Is there a setting I missed? > > Are you using the OpenLayers plugin? > > > > Nyall > > > > > >> Hope I gave all the necessary information. > >> > >> Regards, > >> > >> Carlo > >> _______________________________________________ > >> Qgis-user mailing list > >> [hidden email] > >> List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > >> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > > _______________________________________________ > Qgis-user mailing list > [hidden email] > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > > If you reply to this email, your message will be added to the discussion > below: > http://osgeo-org.1560.x6.nabble.com/Map-composer-Wrong-map-scale-tp5285744p5285755.html > To start a new topic under Quantum GIS - User, email > ml-node+s1560n4125267...@n6.nabble.com > To unsubscribe from Quantum GIS - User, click here. > NAML -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Map-composer-Wrong-map-scale-tp5285744p5285827.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20160914/b261b9c9/attachment-0001.html> ------------------------------ Message: 8 Date: Wed, 14 Sep 2016 10:55:55 -0300 From: Tyler Veinot <tylerkvei...@gmail.com> To: Bia <bia.fs2...@gmail.com> Cc: QGIS User List <qgis-user@lists.osgeo.org> Subject: Re: [Qgis-user] Organizing considering Dates Message-ID: <canfsh33yuwhivsajaufu3_kridc7z7qk0sw-ydefxpr3kon...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" Bia; In 2.16.2 you can right click the column header and choose sort, this will bring up an expression builder. In there just add the field you want to sort by "Field_Name" or you can get fancy and say you want to sort by a number and a string field. Then you would do something like this "String_Field"||right( ('00000000' || "Numeric_Field"), 8) Notice the "00000000" being added, that is because the expression treats the number like a string. Padding it with zeros sorts allows it to sort in order 1,2,3,4 if you do not pad you will end up with. 1,10,11,12,etc... Dual sorting with date is a bit tricky but you can store the data as a YYYY,MM,DD type and it should sort for you. If your date is stored in another way, i.e. DD/MM/YYYY then you will have to format it to YYYY,MM,DD for proper sorting, i.e. Year("Date")||Month("Date")||Day("Date") should work to that effect. As for sorting one column Ascending and another Descending I am at a loss, have not been able to figure that one out but someone here might add to my answer if you need to do that. Additionally if your using an older version of QGIS that does not have the "sort" function you could write the expression to a virtual field and then sort it by clicking the column header of the new virtual field. Hope that helps. Tyler On Wed, Sep 14, 2016 at 7:38 AM, Bia <bia.fs2...@gmail.com> wrote: > Hi, how can I to organize my table considering the date? I tried a > expression but did not work. > And after I wanna compare other columns to have a precision table. > > Thank you! > > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20160914/9be398a5/attachment.html> ------------------------------ Subject: Digest Footer _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user ------------------------------ End of Qgis-user Digest, Vol 127, Issue 36 ******************************************
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