[Qgis-user] Fwd: Update on Geomorphometry 2020 - updates
Apologies for cross-posting. Carlos Grohmann -- Forwarded message - From: Massimiliano Alvioli Date: Wed, Feb 19, 2020 at 8:49 AM Subject: Update on Geomorphometry 2020 - updates To: Massimiliano Alvioli Dear colleague, you are receiving this email because you submitted either an abstract, or a workshop proposal, or both - to Geomorphometry 2020. Let us share with you an updated POSTER of the conference and the LEAFLET with the list and description of the accepted workshops, attached to this email. Please help us announcing the news, by sharing the information with colleagues and/or on social media (see the bottom of this email). Additional important UPDATES: due to many requests & announcement of a SPECIAL ISSUE for the Proceedings of the Sixth Geomorphometry conference (June 22-26, Perugia, Italy), the DEADLINE for abstract submission is now extended to FEBRUARY 29, 2020: http://geomorphometry2020.org/submission-of-short-papers Proceedings will be published as a special issue of TRANSACTIONS IN GIS (Wiley): https://onlinelibrary.wiley.com/journal/14679671 The first day of the conference will be devoted to a series of hands-on WORKSHOPS: http://geomorphometry2020.org/scientific-program/workshops The list of KEYNOTE SPEAKERS include the Lifetime Achievement Awards recipient: http://geomorphometry2020.org/keynote-speakers A GRANT will be awarded to a young geomorphologist by the International Association of Geomorphologists: http://www.geomorph.org/2020/02/call-for-grants-geomorphometry-conference-2020/ We look forward to seeing you next June in Perugia! The organizing committee: Massimiliano Alvioli, CNR IRPI - Perugia Ivan Marchesini, CNR IRPI, Perugia Laura Melelli, University of Perugia Peter Guth, US Naval Academy - USA Scott Peckham, University of Colorado - USA & rivix.com ResearchGate: https://www.researchgate.net/project/Geomorphometry-2020 Facebook: https://it-it.facebook.com/events/1795086087290744/ LinkedIn: https://www.linkedin.com/events/geomorphometry2020/ Twitter: https://twitter.com/GeomorphomOrg Official Website: http://geomorphometry2020.org -- Massimiliano Alvioli CNR IRPI, Perugia tel 0039 339 3459008 http://www.irpi.cnr.it This message is for the recipients only. If received in error, please notify the sender and read http://www.irpi.cnr.it/en/disclaimer/ Questo messaggio e' per l'attenzione dei soli destinatari. Se lo avete ricevuto per sbaglio, siete pregati di avvisare il mittente e leggere http://www.irpi.cnr.it/disclaimer/ -- Prof. Carlos Henrique Grohmann Institute of Energy and Environment - Univ. of São Paulo, Brazil - Digital Terrain Analysis | GIS | Remote Sensing - http://carlosgrohmann.com http://orcid.org/-0001-5073-5572 Can’t stop the signal. ___ 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] QGIS 3.8 - can't install using qgis.org/ubuntu packages
Hello all Since 3.8 is out, I wanted to install it on my Ubuntu 19.04 but I have 3.4 from ubuntugis. In the ubuntugis repos I only found 3.4, but qgis.org has 3.8. Adding the sources doesn't work because there's no qgis-plugin-grass any ideas thanks -- Prof. Carlos Henrique Grohmann Institute of Energy and Environment - Univ. of São Paulo, Brazil - Digital Terrain Analysis | GIS | Remote Sensing - http://carlosgrohmann.com http://orcid.org/-0001-5073-5572 Can’t stop the signal. ___ 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] Problem georeferencing images in UTM
Thanks for the input Nicolas These are official maps so the utm grid is ok. I figured that I was using a linear transformation, with the option to just create the world file, which works for control points at the corners (lat/long), since the boundaries of the map is defined by latitude/longitude. With UTM, this simple transformation won't work, but TPS will give the correct results. Carlos On Thu, May 17, 2018 at 7:28 PM, Nicolas Cadieux < nicolas.cadi...@archeotec.ca> wrote: > Hi, > The utm grid is way off or we have the wrong epsg code. If you geofence > using 2 points (linear algo) using a service like google earth, you will > see the distortion. The long lat coordinate are probably ok but I did not > test them. > > You can either use the long lat or use more points. With 4 points and > using the thin plate spline, I got good results. > Nicolas > > Le 17 mai 2018 à 12:42, Carlos Henrique Grohmann de Carvalho < > carlos.grohm...@gmail.com> a écrit : > > Thanks Nicolas, but the misalignment still persists. OTF is off, project > has same CRS as data (epsg 29192). There is a ~400m difference in the N-S > direction. > > Carlos > > On Thu, May 17, 2018 at 1:28 PM, Nicolas Cadieux < > nicolas.cadi...@archeotec.ca> wrote: > >> Hi, >> Disable projection on the fly. Make sure the project is in the same CRS >> as your maps. >> Nicolas >> >> Le 17 mai 2018 à 12:14, Carlos Henrique Grohmann de Carvalho < >> carlos.grohm...@gmail.com> a écrit : >> >> Hello all >> >> I have two pngs of topographic maps from southeastern Brazil (a zip file >> with images and points is available here: https://www.dropbox.com/ >> s/mexeh4be46pgsk6/images_georef.zip?dl=0) >> >> I'm trying to georeference them, but with partial success only. In this >> image (https://www.dropbox.com/s/37xxqp4fkwpdyqh/utm_error.png?dl=0) you >> can see that the X coordinate is fine, but the Y coordinate of the two maps >> won't match. >> >> Both maps use South American Datum 1969. I selected points near the >> edges, and used the UTM values. >> >> Interestingly, if I use Lat/Long, and place the points at the corners, >> using decimal degrees, the maps align perfectly. >> >> >> Any help is appreciated >> >> >> -- >> Prof. Carlos Henrique Grohmann >> Institute of Energy and Environment - Univ. of São Paulo, Brazil >> - Digital Terrain Analysis | GIS | Remote Sensing - >> >> http://carlosgrohmann.com >> http://orcid.org/-0001-5073-5572 >> >> Can’t stop the signal. >> >> ___ >> 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 >> >> > > > -- > Prof. Carlos Henrique Grohmann > Institute of Energy and Environment - Univ. of São Paulo, Brazil > - Digital Terrain Analysis | GIS | Remote Sensing - > > http://carlosgrohmann.com > http://orcid.org/-0001-5073-5572 > > Can’t stop the signal. > > -- Prof. Carlos Henrique Grohmann Institute of Energy and Environment - Univ. of São Paulo, Brazil - Digital Terrain Analysis | GIS | Remote Sensing - http://carlosgrohmann.com http://orcid.org/-0001-5073-5572 Can’t stop the signal. ___ 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] Problem georeferencing images in UTM
Thanks Nicolas, but the misalignment still persists. OTF is off, project has same CRS as data (epsg 29192). There is a ~400m difference in the N-S direction. Carlos On Thu, May 17, 2018 at 1:28 PM, Nicolas Cadieux < nicolas.cadi...@archeotec.ca> wrote: > Hi, > Disable projection on the fly. Make sure the project is in the same CRS > as your maps. > Nicolas > > Le 17 mai 2018 à 12:14, Carlos Henrique Grohmann de Carvalho < > carlos.grohm...@gmail.com> a écrit : > > Hello all > > I have two pngs of topographic maps from southeastern Brazil (a zip file > with images and points is available here: https://www.dropbox.com/ > s/mexeh4be46pgsk6/images_georef.zip?dl=0) > > I'm trying to georeference them, but with partial success only. In this > image (https://www.dropbox.com/s/37xxqp4fkwpdyqh/utm_error.png?dl=0) you > can see that the X coordinate is fine, but the Y coordinate of the two maps > won't match. > > Both maps use South American Datum 1969. I selected points near the edges, > and used the UTM values. > > Interestingly, if I use Lat/Long, and place the points at the corners, > using decimal degrees, the maps align perfectly. > > > Any help is appreciated > > > -- > Prof. Carlos Henrique Grohmann > Institute of Energy and Environment - Univ. of São Paulo, Brazil > - Digital Terrain Analysis | GIS | Remote Sensing - > > http://carlosgrohmann.com > http://orcid.org/-0001-5073-5572 > > Can’t stop the signal. > > ___ > 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 > > -- Prof. Carlos Henrique Grohmann Institute of Energy and Environment - Univ. of São Paulo, Brazil - Digital Terrain Analysis | GIS | Remote Sensing - http://carlosgrohmann.com http://orcid.org/-0001-5073-5572 Can’t stop the signal. ___ 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] Problem georeferencing images in UTM
Hello all I have two pngs of topographic maps from southeastern Brazil (a zip file with images and points is available here: https://www.dropbox.com/ s/mexeh4be46pgsk6/images_georef.zip?dl=0) I'm trying to georeference them, but with partial success only. In this image (https://www.dropbox.com/s/37xxqp4fkwpdyqh/utm_error.png?dl=0) you can see that the X coordinate is fine, but the Y coordinate of the two maps won't match. Both maps use South American Datum 1969. I selected points near the edges, and used the UTM values. Interestingly, if I use Lat/Long, and place the points at the corners, using decimal degrees, the maps align perfectly. Any help is appreciated -- Prof. Carlos Henrique Grohmann Institute of Energy and Environment - Univ. of São Paulo, Brazil - Digital Terrain Analysis | GIS | Remote Sensing - http://carlosgrohmann.com http://orcid.org/-0001-5073-5572 Can’t stop the signal. ___ 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
