Re: [Qgis-user] Tectonic plate boundaries
John and list, On Fri, Aug 19, 2022 at 2:45 AM John Moyle via Qgis-user < qgis-user@lists.osgeo.org> wrote: > Thank you one and all with helpful suggestions about finding a shape file > of tectonic plate boundaries. > Having tried several of them, QGIS accepts them and allows me to set > colour type and thickness of line etc but even if they are the only layer > selected I am unable to *see *them. > This might be a problem with your coordinate reference systems (CRS) for the two layers and the project. Maybe one layer or the other doesn't correctly specify a CRS? If you click on Help on the main menu, which pops up the documentation for the version you are using in your browser, you can go to the section on "Working with Projections" (it's § 10 in my QGIS version). There you will find a gentle explanaton of the topic and how to problem-solve when something goes wrong. If this doesn't help come back for more. > I must be doing something wrong! > Maybe it's "old dogs and new tricks" at 77 to learn QGIS. The problem is > that this is probably the only time I will ever be using a GIS and all the > courses available want to teach so much general GIS before the little bits > that I need to learn!! I have my base raster file of the North Atlantic > and have learned enough to make individual layers of cable interruptions, > sub-sea volcanoes and land-slides etc. but have come unstuck at an *imported > *shape file! > > Take heart, sounds like you've done all the hard stuff! -- Chris Hermansen · clhermansen "at" gmail "dot" com C'est ma façon de parler. ___ 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] Tectonic plate boundaries
Hi John, I think you may be working with a 'Line' layer so you can't fill the space between them. You should get a 'Polygon' layer, specifically the 'PB2002_plates' from the repository mentioned earlier. You can download it from https://github.com/fraxen/tectonicplates/blob/master/GeoJSON/PB2002_plates.json [https://github.com/fraxen/tectonicplates/blob/master/GeoJSON/PB2002_plates.json] (right-click and Save As on your computer) and drag and drop it in QGIS. I also have a detailed step-by-step tutorial that shows how to import and style data in QGIS, including the tectonic plate boundaries layer that you are interested in. If you work through the whole exercise, you will have a good idea how to import several types of data to QGIS and create a map. https://courses.spatialthoughts.com/introduction-to-qgis#creating-maps [https://courses.spatialthoughts.com/introduction-to-qgis#creating-maps] --- Ujaval Gandhi Spatial Thoughts www.spatialthoughts.com [http://www.spatialthoughts.com] [data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAQABAAACAkQBADs=3D] On Fri, Aug 19, 2022 at 3:15 PM John Moyle via Qgis-user wrote: > Thank you one and all with helpful suggestions about finding a shape file of > tectonic plate boundaries. > Having tried several of them, QGIS accepts them and allows me to set colour > type and thickness of line etc but even if they are the only layer selected I > am unable to see them. I must be doing something wrong! > Maybe it's "old dogs and new tricks" at 77 to learn QGIS. The problem is that > this is probably the only time I will ever be using a GIS and all the courses > available want to teach so much general GIS before the little bits that I need > to learn!! I have my base raster file of the North Atlantic and have learned > enough to make individual layers of cable interruptions, sub-sea volcanoes and > land-slides etc. but have come unstuck at an imported shape file! > Anyway, many thanks one and all. > > > Dr John Moyle > MB, BS, MSc, PhD, CEng, MInstMC, FRCA, FRHistS > Chartered Engineer > Physician & Anaesthetist (Retired) > Historian (Telegraphy & Medical Technology) > > Home +44(0)1608 665968 > Cell +44(0)7836 244584 > > Amberley > Cotswold Close > Tredington > Shipston on Stour > Warwickshire > CV36 4NR, UK > > "A person has nothing to lose if he believes in God and in the end he turns > out to be wrong but everything to lose if he wagers that God does not exist > and it turns out in the end that He really does." - Blaise Pascal (C17th > French Scientist & Mathematician) > > > > On Sun, 14 Aug 2022 at 22:35, Fielding, Eric J (US 329A) via Qgis-user > wrote: > > > > Hi John, > > > > Here is a GitHub site with plate boundaries in several GIS formats, > > including Shapefile and GeoJSON. > > https://github.com/fraxen/tectonicplates > > [https://github.com/fraxen/tectonicplates] > > > > These should work with QGIS. This is from the Bird (2003) paper that is a > > widely used source of tectonic plate boundaries. > > > > ++Eric > > -- > > Eric Fielding > > > > eric.j.field...@jpl.nasa.gov [eric.j.field...@jpl.nasa.gov] > > http://science.jpl.nasa.gov/people/Fielding/ > > [http://science.jpl.nasa.gov/people/Fielding/] > > Twitter: @EricFielding > > Jet Propulsion Laboratory > > Caltech > > 4800 Oak Grove Drive > > Pasadena, CA 91109 > > USA > > > > > > > > > > Date: Sat, 13 Aug 2022 14:53:54 -0700 > > From: chris hermansen > > To: John Moyle > > Cc: qgis-user > > Subject: Re: [Qgis-user] Tectonic plate boundaries > > Message-ID: > > > [fuh6atwa8b5zx1emux9mbv...@mail.gmail.com]> > > Content-Type: text/plain; charset="utf-8" > > > > John and list, > > > > On Sat, Aug 13, 2022, 09:38 John Moyle via Qgis-user < > > qgis-user@lists.osgeo.org [qgis-user@lists.osgeo.org]> wrote: > > > > > Hi > > > New to QGIS. I want to plot Victorian submarine telegraph cable > > > interruptions under the Atlantic. I know, what an Anorak!! > > > I have found a brilliant rasterfile of the seabed from GEBCO to use as > > a > > > base layer. I have also collected all the data of cable failure, > > submarine > > > earthquakes and volcanoes and am ready to make vector layers of all > > the > > > data. > > > But what I can't find is a shapefile of the tectonic plates > > boundaries, > > > just the boundary lines with no shading or text. > > > > > > > I believe you have a basic misunderstanding of the nature of data within > > a > > GIS. > > > > Generally the way QGIS (and most GIS) works is they "take" only data > > such > > as points lines and polygons and then the user develops styling on those > > to > > create the desire cartographic effect. > > > > It would be most unusual to find shading or text in a shapefile. > > > > Test in a shapefile is an attribute of some geometric feature. So line > > 377 > > might have an
Re: [Qgis-user] Tectonic plate boundaries
Thank you one and all with helpful suggestions about finding a shape file of tectonic plate boundaries. Having tried several of them, QGIS accepts them and allows me to set colour type and thickness of line etc but even if they are the only layer selected I am unable to *see *them. I must be doing something wrong! Maybe it's "old dogs and new tricks" at 77 to learn QGIS. The problem is that this is probably the only time I will ever be using a GIS and all the courses available want to teach so much general GIS before the little bits that I need to learn!! I have my base raster file of the North Atlantic and have learned enough to make individual layers of cable interruptions, sub-sea volcanoes and land-slides etc. but have come unstuck at an *imported *shape file! Anyway, many thanks one and all. Dr John Moyle MB, BS, MSc, PhD, CEng, MInstMC, FRCA, FRHistS Chartered Engineer Physician & Anaesthetist (Retired) Historian (Telegraphy & Medical Technology) Home +44(0)1608 665968 Cell +44(0)7836 244584 Amberley Cotswold Close Tredington Shipston on Stour Warwickshire CV36 4NR, UK "A person has nothing to lose if he believes in God and in the end he turns out to be wrong but everything to lose if he wagers that God does not exist and it turns out in the end that He really does." - Blaise Pascal (C17th French Scientist & Mathematician) On Sun, 14 Aug 2022 at 22:35, Fielding, Eric J (US 329A) via Qgis-user < qgis-user@lists.osgeo.org> wrote: > Hi John, > > Here is a GitHub site with plate boundaries in several GIS formats, > including Shapefile and GeoJSON. > https://github.com/fraxen/tectonicplates > > These should work with QGIS. This is from the Bird (2003) paper that is a > widely used source of tectonic plate boundaries. > > ++Eric > -- > Eric Fielding > > eric.j.field...@jpl.nasa.gov > http://science.jpl.nasa.gov/people/Fielding/ > Twitter: @EricFielding > Jet Propulsion Laboratory > Caltech > 4800 Oak Grove Drive > Pasadena, CA 91109 > USA > > > > > Date: Sat, 13 Aug 2022 14:53:54 -0700 > From: chris hermansen > To: John Moyle > Cc: qgis-user > Subject: Re: [Qgis-user] Tectonic plate boundaries > Message-ID: > fuh6atwa8b5zx1emux9mbv...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > John and list, > > On Sat, Aug 13, 2022, 09:38 John Moyle via Qgis-user < > qgis-user@lists.osgeo.org> wrote: > > > Hi > > New to QGIS. I want to plot Victorian submarine telegraph cable > > interruptions under the Atlantic. I know, what an Anorak!! > > I have found a brilliant rasterfile of the seabed from GEBCO to use > as a > > base layer. I have also collected all the data of cable failure, > submarine > > earthquakes and volcanoes and am ready to make vector layers of all > the > > data. > > But what I can't find is a shapefile of the tectonic plates > boundaries, > > just the boundary lines with no shading or text. > > > > I believe you have a basic misunderstanding of the nature of data > within a > GIS. > > Generally the way QGIS (and most GIS) works is they "take" only data > such > as points lines and polygons and then the user develops styling on > those to > create the desire cartographic effect. > > It would be most unusual to find shading or text in a shapefile. > > Test in a shapefile is an attribute of some geometric feature. So line > 377 > might have an attribute that is "Mid Atlantic Ridge". > > QGIS provides the ability to print the text attributes as labels, > which can > be styled in many useful ways for visualization purposes. > > > Everything I do find is rejected by QGIS as not being in a suitable > format. > > Help please! > > John > > > > Dr John Moyle > > MB, BS, MSc, PhD, CEng, MInstMC, FRCA, FRHistS > > Chartered Engineer > > Physician & Anaesthetist (Retired) > > Historian (Telegraphy & Medical Technology) > > > ___ > 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] Latest development version of QGIS as a .msi standalone installer ?
On 8/19/22 08:38, Andrea Giudiceandrea via Qgis-user wrote: Hi Richard, AFAIK Python works without issues with the MinGW64 Windows Build of QGIS on Windows 10 64 bit. Hi Andrea, YOU are right ! \o/ So this way you can have a working Windows QGIS 'from the edge'!? Sorry I was told earlier that python wasn't working, and I did not have time yesterday to do thorough testing in my virtual windows env, so when I saw a python error (from tile... something), when starting QGIS, I just quit it and wrongly concluded python was missing. @bo IF your client can just 'run' such executables, this could be a way to 'test' out development versions (in which I want to note: it's not 'supported nightlies', these are pull request binaries, so DRAGONS can be at the edges!!! Regards, Richard Duivenvoorde ___ 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] Latest development version of QGIS as a .msi standalone installer ?
*Richard Duivenvoorde* /Thu Aug 18 03:53:07 PDT 2022/ you can download a windows 'artifact' from a pull request with all tests succeeded and run that. BUT BUT !!! this is without any python stuff I'm told So barely usable, unless you want to test something from core. Hi Richard, AFAIK Python works without issues with the MinGW64 Windows Build of QGIS on Windows 10 64 bit. Best regards. Andrea Giudiceandrea___ 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
