Check the arrow line renderer on QGIS 3. I think it does what you are looking for.
A qua, 26/09/2018, 23:04, Adam Dershowitz <de...@alum.mit.edu> escreveu: > No, they aren’t great circle. For example, look at the route from Boston > to Denver, and then from New York to Denver. One goes far south (over > Atlanta), and the other goes way north (over Canada), but both great circle > routes should be fairly close to each other. They start at cities that are > perhaps 200 miles apart, and the middle of the routes are 700 miles apart, > to get to the same location. > > > --Adam > > > > On Sep 26, 2018, at 5:54 PM, Wolstan H M Dixie < > wolstan-di...@hotmail.co.uk> wrote: > > I don't know but am guessing, but aren't those lines not just *any* > circular arcs, but the actual great-circle paths (the shortest line between > two points on the surface of a globe) plotted onto that map projection? > Some of them towards the edges aren't circular. > > On 26/09/2018 21:34, C Hamilton wrote: > > I had a user request Circular Lines in the Shape Tools plugin and they > gave the following example. > > https://www.stayaspensnowmass.com/sites/default/files/aspenFlightMap.jpg > > I don't know how one would do this type of drawing. Does anyone have any > ideas? It draws the lines trying to avoid overlapping other lines in a very > pleasing manner. Doing this is probably outside the scope of the Shape > Tools plugin, but I just wanted to ask to see if there is a relatively easy > algorithmic way of drawing these types of lines between two points. > > Thanks, > > Calvin > > > > _______________________________________________ > Qgis-user mailing listqgis-u...@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 -- Alexandre Neto --------------------- @AlexNetoGeo http://sigsemgrilhetas.wordpress.com http://gisunchained.wordpress.com
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