Re: [Qgis-user] Coordinates from wgs84 utm /expressed in meter) to wgs84 (expressed in degrees)
Hi Bernd, Le jeu. 21 mars 2019 à 09:49, Bernd Vogelgesang a écrit : > Hi Nyall, > > as much as I like your initiative to add such a function, I think such > examples should also be listed in the user manual connected to the field > calculator section. > > Unfortunately, in this very important field, qgis resources do not give > many hints how to use the powers of the existing functions. Me, I do > 100% of my searches on gis.stackexchange.com to find solution, not the > docs. > > As you might certainly know, the doc IS a community-driven work and we welcome any contribution. So if you feel something is worth mentioning and you know how to fix it, please simply provide a text or a pull request[0] and it'll get done. This is how things work. And if people have to do 100% of their searches out of the docs, maybe should we stop (trying) to maintain it. [0] https://github.com/qgis/QGIS-Documentation Regards, Harrissou Cheers, > Bernd > > Am 21.03.19 um 08:05 schrieb Nyall Dawson: > > On Wed, 20 Mar 2019 at 03:55, Azzurra Lentini > > wrote: > >> Good morning, > >> if for example my project is in this referencing system: WGS84-UTM, > >> when I ask to calculate the coordinates Y and X (with field calculator > >> - geometry), it will produce the coordinates in meters. > >> But what can I do if I want the same coordinates in degrees? > >> (obviously in the same datum wgs84) > > I think this is a common enough task to warrant it's own processing > > algorithm. I've added one in https://github.com/qgis/QGIS/pull/9587 > > (so will be in 3.8), ported from some Python code I used at a > > customer's workplace. > > > > Nyall > > ___ > > 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 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] Coordinates from wgs84 utm /expressed in meter) to wgs84 (expressed in degrees)
The Lat Lon Tools plugin does this conversion to put the coordinates into one or two fields. See "Plugins->Lat Lon Tools->Conversions->Point layer to fields". It has a lot of flexibility as to the output format. Calvin On Thu, Mar 21, 2019 at 3:06 AM Nyall Dawson wrote: > On Wed, 20 Mar 2019 at 03:55, Azzurra Lentini > wrote: > > > > Good morning, > > if for example my project is in this referencing system: WGS84-UTM, > > when I ask to calculate the coordinates Y and X (with field calculator > > - geometry), it will produce the coordinates in meters. > > But what can I do if I want the same coordinates in degrees? > > (obviously in the same datum wgs84) > > I think this is a common enough task to warrant it's own processing > algorithm. I've added one in https://github.com/qgis/QGIS/pull/9587 > (so will be in 3.8), ported from some Python code I used at a > customer's workplace. > > Nyall > ___ > 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] Coordinates from wgs84 utm /expressed in meter) to wgs84 (expressed in degrees)
Hi Nyall, as much as I like your initiative to add such a function, I think such examples should also be listed in the user manual connected to the field calculator section. Unfortunately, in this very important field, qgis resources do not give many hints how to use the powers of the existing functions. Me, I do 100% of my searches on gis.stackexchange.com to find solution, not the docs. Cheers, Bernd Am 21.03.19 um 08:05 schrieb Nyall Dawson: On Wed, 20 Mar 2019 at 03:55, Azzurra Lentini wrote: Good morning, if for example my project is in this referencing system: WGS84-UTM, when I ask to calculate the coordinates Y and X (with field calculator - geometry), it will produce the coordinates in meters. But what can I do if I want the same coordinates in degrees? (obviously in the same datum wgs84) I think this is a common enough task to warrant it's own processing algorithm. I've added one in https://github.com/qgis/QGIS/pull/9587 (so will be in 3.8), ported from some Python code I used at a customer's workplace. Nyall ___ 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] Coordinates from wgs84 utm /expressed in meter) to wgs84 (expressed in degrees)
On Wed, 20 Mar 2019 at 03:55, Azzurra Lentini wrote: > > Good morning, > if for example my project is in this referencing system: WGS84-UTM, > when I ask to calculate the coordinates Y and X (with field calculator > - geometry), it will produce the coordinates in meters. > But what can I do if I want the same coordinates in degrees? > (obviously in the same datum wgs84) I think this is a common enough task to warrant it's own processing algorithm. I've added one in https://github.com/qgis/QGIS/pull/9587 (so will be in 3.8), ported from some Python code I used at a customer's workplace. Nyall ___ 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] Coordinates from wgs84 utm /expressed in meter) to wgs84 (expressed in degrees)
Hi Bernd, yes thank you, in fact I meant that transformation. Thank you a lot for the explaination and for the correction. Have a nice day, Azzurra Bernd Vogelgesang a écrit : Hi, I was at first quite confused by your question. I don't know of any projection named WGS84-UTM, but i guess you mean SOME WGS 84 / UTM projection. I think it's always best to "talk" in EPSG codes, cause there are so many confusing terms around. So, assuming you have e.g a point layer in EPSG 32632 (metric) and want the coordinates calculated in the field calculator, but the result should be in EPSG 4326 (degree), you can do: for a new X column |X( transform( $geometry, 'EPSG:32632', 'EPSG:4326')) | and similar for a new Y column |Y( transform( $geometry, 'EPSG:32632', 'EPSG:4326')) | |in the field calculator.| || Answer found here: https://gis.stackexchange.com/a/242259/8202 Cheers, Bernd Am 19.03.19 um 18:43 schrieb Azzurra Lentini: Good morning, if for example my project is in this referencing system: WGS84-UTM, when I ask to calculate the coordinates Y and X (with field calculator - geometry), it will produce the coordinates in meters. But what can I do if I want the same coordinates in degrees? (obviously in the same datum wgs84) Thank you, Azzurra ___ 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] Coordinates from wgs84 utm /expressed in meter) to wgs84 (expressed in degrees)
Hi, I was at first quite confused by your question. I don't know of any projection named WGS84-UTM, but i guess you mean SOME WGS 84 / UTM projection. I think it's always best to "talk" in EPSG codes, cause there are so many confusing terms around. So, assuming you have e.g a point layer in EPSG 32632 (metric) and want the coordinates calculated in the field calculator, but the result should be in EPSG 4326 (degree), you can do: for a new X column |X( transform( $geometry, 'EPSG:32632', 'EPSG:4326')) | and similar for a new Y column |Y( transform( $geometry, 'EPSG:32632', 'EPSG:4326')) | |in the field calculator.| || Answer found here: https://gis.stackexchange.com/a/242259/8202 Cheers, Bernd Am 19.03.19 um 18:43 schrieb Azzurra Lentini: Good morning, if for example my project is in this referencing system: WGS84-UTM, when I ask to calculate the coordinates Y and X (with field calculator - geometry), it will produce the coordinates in meters. But what can I do if I want the same coordinates in degrees? (obviously in the same datum wgs84) Thank you, Azzurra ___ 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] Coordinates from wgs84 utm /expressed in meter) to wgs84 (expressed in degrees)
Good morning, if for example my project is in this referencing system: WGS84-UTM, when I ask to calculate the coordinates Y and X (with field calculator - geometry), it will produce the coordinates in meters. But what can I do if I want the same coordinates in degrees? (obviously in the same datum wgs84) Thank you, Azzurra --- Begin Message --- Good morning, if for example my project is in this referencing system: WGS84-UTM, when I ask to calculate the coordinates Y and X (with field calculator - geometry), it will produce the coordinates in meters. But what can I do if I want the same coordinates in degrees? (obviously in the same datum wgs84) Thank you, Azzurra --- End Message --- ___ 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
