[QGIS-ZA-user] South African CRSs in QGIS
Tim Sutton
tim at kartoza.com
Wed Nov 14 23:17:27 PST 2018
Hi
For those interested, you can see a detailed report on the EPSG codes published here (go back to the home page to tweak the search string if needed):
http://www.epsg-registry.org/report.htm?type=selection&entity=urn:ogc:def:crs:EPSG::4940&entity=urn:ogc:def:crs:EPSG::4941&entity=urn:ogc:def:crs:EPSG::4148&entity=urn:ogc:def:crs:EPSG::2046&entity=urn:ogc:def:crs:EPSG::2047&entity=urn:ogc:def:crs:EPSG::2048&entity=urn:ogc:def:crs:EPSG::2049&entity=urn:ogc:def:crs:EPSG::2050&entity=urn:ogc:def:crs:EPSG::2051&entity=urn:ogc:def:crs:EPSG::2052&reportDetail=long&style=urn:uuid:report-style:default-with-code&style_name=OGP%20Default%20With%20Code&title=South%20African%20Projections&r=59
QGIS uses a little internal application called crssync to populate it’s internal CRS database from Proj. Layered on top of that are other CRSes that haven’t made their way into EPSG yet. It takes a while for CRS’s to make their way into EPSG -> Proj -> QGIS. The ZANGI definitions were QGIS specific definitions that Gavin and I cooked up in the absence of these CRS’s being in EPSG and Proj. Please let us know if the ones provided in Proj 5 now deprecate the ZANGI and I will remove them from QGIS’s CRS database. We hope to eventually remove the need for QGIS’ own layer on top of the Proj database. Even (proj maintainer) has been talking about moving proj’s CRS database to a sqlite database so in theory we could just have one database that is shared between, proj, gdal, QGIS etc. which would make things more consistent.
BTW Mac users are also still getting Proj 493 in the official Mac packages.
Happy QGISsing :-)
Regards
Tim
> On 15 Nov 2018, at 08:52, Immo Blecher via qgis-za-user <qgis-za-user at lists.osgeo.org> wrote:
>
> Morning Frank,
>
> This is exactly the one I am using but it has proj 493. I will do a complete removal and install again, maybe some older files remain due to dependencies?
>
> Thanks for all your help.
>
> Regards
>
> Immo
>
> On 2018/11/14 08:37, Frank Sokolic via qgis-za-user wrote:
>> Hi Immo,
>>
>> This is the repository I'm using:
>> deb https://qgis.org/ubuntu <https://qgis.org/ubuntu> cosmic main
>>
>> When I install QGIS 3.4 from this repository it loads Proj 5.1.0 which contains the CRSs I listed in my earlier post.
>>
>> Frank.
>>
>> On 2018/11/14 07:58, Immo Blecher via qgis-za-user wrote:
>>> Good Morning,
>>>
>>> I think the "latest" proj4 probably sits with the ubuntugis-unstable version. And I am on Ubuntu 18.04 LTS, which apparently does not support the latest ubuntugis-unstable. Or did anybody get it installed and working?
>>>
>>> Regards
>>>
>>> Immo
>>>
>>> On 2018/11/13 19:16, Paul Young via qgis-za-user wrote:
>>>> Hi there I tried to pul the Docker Proj4 and it would not upgrade.
>>>>
>>>> It gave: Rel. 4.9.3, 15 August 2016
>>>> Maybe it needs to be compiled from source?
>>>>
>>>>
>>>> On Tue, 13 Nov 2018 at 12:24, Immo Blecher via qgis-za-user <qgis-za-user at lists.osgeo.org <mailto:qgis-za-user at lists.osgeo.org>> wrote:
>>>> Hi Frank,
>>>>
>>>> That is weird! I am on 3.4, but installed from the Debian link, not the ubuntugis as there I had dependency issues. Maybe there is still a big difference between the two. But I will try the ubuntugis route again. The proj version obviously makes all the difference.
>>>>
>>>> Regards
>>>>
>>>> Immo
>>>>
>>>>
>>>>
>>>> On 2018/11/13 12:20, Frank Sokolic via qgis-za-user wrote:
>>>>> Hi Immo,
>>>>>
>>>>> Not sure why they don't show up for you. I can see them on QGIS 3.14 and the Proj version is 5.1.0. This is on Ubuntu Linux.
>>>>>
>>>>> Regards, Frank.
>>>>>
>>>>> On 2018/11/13 11:31, Immo Blecher via qgis-za-user wrote:
>>>>>> Hi QGIS Users,
>>>>>>
>>>>>> I can't find these in my QGIS 3.4. And I see that Proj4 is still on version 4.93, but the latest seems to be 5.2.
>>>>>>
>>>>>> But what I also noticed is that Proj4 changed the way it converts from/to Hartebeesthoek94 (15 to 31) from version 4.7 to vers. 4.9: Using proj4 4.7 to convert one had to turn around E-W and N-S, w.o.w. X = -X and Y = -Y and then convert. From vers. 4.9 this was not necessary any longer so I think the calculations in QGIS should be sorted out (it is actually a bug and that is why everything is upside down and right=left). That would also mean that we would not need the ZANGI:ZANGI projections any longer but just use the built-in Hartebeesthoek94 ones.
>>>>>>
>>>>>> For what it's worth!
>>>>>>
>>>>>> Immo
>>>>>>
>>>>>> On 2018/11/13 10:58, Frank Sokolic via qgis-za-user wrote:
>>>>>>> Hi QGIS users,
>>>>>>>
>>>>>>> I noticed last week that these CRSs have appeared in QGIS under Project Coordinate Systems > Transverse Mercator:
>>>>>>>
>>>>>>> EPSG:102480 Hartebeesthoek94_Lo15
>>>>>>> EPSG:102481 Hartebeesthoek94_Lo17
>>>>>>> EPSG:102482 Hartebeesthoek94_Lo19
>>>>>>> EPSG:102483 Hartebeesthoek94_Lo21
>>>>>>> EPSG:102484 Hartebeesthoek94_Lo23
>>>>>>> EPSG:102485 Hartebeesthoek94_Lo25
>>>>>>> EPSG:102486 Hartebeesthoek94_Lo27
>>>>>>> EPSG:102487 Hartebeesthoek94_Lo29
>>>>>>> EPSG:102488 Hartebeesthoek94_Lo31
>>>>>>> EPSG:102489 Hartebeesthoek94_Lo33
>>>>>>> EPSG:102562 Hartebeesthoek94_Lo19_(E-N)
>>>>>>> EPSG:102563 Hartebeesthoek94_Lo21_(E-N)
>>>>>>> EPSG:102564 Hartebeesthoek94_Lo23_(E-N)
>>>>>>> EPSG:102565 Hartebeesthoek94_Lo25_(E-N)
>>>>>>> EPSG:102566 Hartebeesthoek94_Lo27_(E-N)
>>>>>>> EPSG:102567 Hartebeesthoek94_Lo29_(E-N)
>>>>>>> EPSG:102568 Hartebeesthoek94_Lo31_(E-N)
>>>>>>>
>>>>>>> Anyone know anything about them? Are these now the official South African CRSs in the EPSG database? If so, where are L015_(E-N), L017_(E-N) and L033_(E-N)?
>>>>>>>
>>>>>>> With these new additions, there are now a few versions of the South African CRSs in the QGIS CRS database (e.g. EPSG 2046 to EPSG 2055 as well as ZANGI:HBKNO15 to ZANGI:HBK033) so I guess things need to be cleaned up.
>>>>>>>
>>>>>>> Regards, Frank.
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> qgis-za-user mailing list
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>>>>>> --
>>>>>> Immo F. Blecher
>>>>>> Street: 36 Saffraan Ave., Die Boord, Stellenbosch, 7613, South Africa
>>>>>> Postal: PO Box 74, Lynedoch, 7603, South Africa
>>>>>> Cell: +27 83 272 6791 | Fax: +27 86 736 3302 Email: immo at blecher.co.za <mailto:immo at blecher.co.za> | immob19 at gmail.com <mailto:immob19 at gmail.com> | immob at mymtnmail.co.za <mailto:immob at mymtnmail.co.za>
>>>>>> Internet: http://www.blecher.co.za/ <http://www.blecher.co.za/>Contact me: immob19 at gmail.com <mailto:immob19 at gmail.com> immoblecher
>>>>>> <http://www.linkedin.com/pub/immo-blecher/30/414/b8>
>>>>>>
>>>>>> Please consider your environmental responsibility. Before printing this e-mail message, ask yourself whether you really need a hard copy.
>>>>>>
>>>>>> IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email by mistake, please notify the sender immediately and do not disclose the contents to anyone or make copies thereof.
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
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>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
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>>>> --
>>>> Immo F. Blecher
>>>> Street: 36 Saffraan Ave., Die Boord, Stellenbosch, 7613, South Africa
>>>> Postal: PO Box 74, Lynedoch, 7603, South Africa
>>>> Cell: +27 83 272 6791 | Fax: +27 86 736 3302 Email: immo at blecher.co.za <mailto:immo at blecher.co.za> | immob19 at gmail.com <mailto:immob19 at gmail.com> | immob at mymtnmail.co.za <mailto:immob at mymtnmail.co.za>
>>>> Internet: http://www.blecher.co.za/ <http://www.blecher.co.za/>Contact me: immob19 at gmail.com <mailto:immob19 at gmail.com> immoblecher
>>>> <http://www.linkedin.com/pub/immo-blecher/30/414/b8>
>>>>
>>>> Please consider your environmental responsibility. Before printing this e-mail message, ask yourself whether you really need a hard copy.
>>>>
>>>> IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email by mistake, please notify the sender immediately and do not disclose the contents to anyone or make copies thereof.
>>>>
>>>> _______________________________________________
>>>> qgis-za-user mailing list
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>>>> https://lists.osgeo.org/mailman/listinfo/qgis-za-user <https://lists.osgeo.org/mailman/listinfo/qgis-za-user>
>>>>
>>>>
>>>> --
>>>> Regards
>>>> Paul Young
>>>> Home: +27 (0) 31 5662608
>>>> Work: +27 (0) 87 9432416
>>>> Mobile: +27 (0) 84 2471544 / +27 (0) 604141439
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>>>>
>>>>
>>>> N�n�r����)em�h�yhiם�w^���
>>> --
>>> Immo F. Blecher
>>> Street: 36 Saffraan Ave., Die Boord, Stellenbosch, 7613, South Africa
>>> Postal: PO Box 74, Lynedoch, 7603, South Africa
>>> Cell: +27 83 272 6791 | Fax: +27 86 736 3302 Email: immo at blecher.co.za <mailto:immo at blecher.co.za> | immob19 at gmail.com <mailto:immob19 at gmail.com> | immob at mymtnmail.co.za <mailto:immob at mymtnmail.co.za>
>>> Internet: http://www.blecher.co.za/ <http://www.blecher.co.za/>Contact me: immob19 at gmail.com <mailto:immob19 at gmail.com> immoblecher
>>> <http://www.linkedin.com/pub/immo-blecher/30/414/b8>
>>>
>>> Please consider your environmental responsibility. Before printing this e-mail message, ask yourself whether you really need a hard copy.
>>>
>>> IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email by mistake, please notify the sender immediately and do not disclose the contents to anyone or make copies thereof.
>>>
>>>
>>>
>>> _______________________________________________
>>> qgis-za-user mailing list
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>>> https://lists.osgeo.org/mailman/listinfo/qgis-za-user <https://lists.osgeo.org/mailman/listinfo/qgis-za-user>
>>
>>
>>
>> N�n�r����)em�h�yhiם�w^���
> --
> Immo F. Blecher
> Street: 36 Saffraan Ave., Die Boord, Stellenbosch, 7613, South Africa
> Postal: PO Box 74, Lynedoch, 7603, South Africa
> Cell: +27 83 272 6791 | Fax: +27 86 736 3302 Email: immo at blecher.co.za <mailto:immo at blecher.co.za> | immob19 at gmail.com <mailto:immob19 at gmail.com> | immob at mymtnmail.co.za <mailto:immob at mymtnmail.co.za>
> Internet: http://www.blecher.co.za/ <http://www.blecher.co.za/>Contact me: immob19 at gmail.com <mailto:immob19 at gmail.com> immoblecher
> <http://www.linkedin.com/pub/immo-blecher/30/414/b8>
>
> Please consider your environmental responsibility. Before printing this e-mail message, ask yourself whether you really need a hard copy.
>
> IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email by mistake, please notify the sender immediately and do not disclose the contents to anyone or make copies thereof.
>
> _______________________________________________
> qgis-za-user mailing list
> qgis-za-user at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/qgis-za-user
—
Tim Sutton
Co-founder: Kartoza
Ex Project chair: QGIS.org
Visit http://kartoza.com <http://kartoza.com/> to find out about open source:
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Skype: timlinux
IRC: timlinux on #qgis at freenode.net
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