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 [email protected] 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 <[email protected]> To: John Moyle <[email protected]> Cc: qgis-user <[email protected]> Subject: Re: [Qgis-user] Tectonic plate boundaries Message-ID: <CACc2_69tDWyP6vyShhiSjNdy=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 < [email protected]> 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 [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
