I created an issue in github https://github.com/qgis/QGIS/issues/62654
phidrho <https://github.com/phidrho> answered something that "solves" the problem: deselect "Clip features to canvas extent" https://download.qgis.org/qgisdata/QGIS-Documentation-3.10/live/html/en/docs/user_manual/style_library/symbol_selector.html#:~:text=Clip%20features%20to%20canvas%20extent I don't understand very well that this option is doing, but apparently impacts how geometries are reprojected in some cases. Thanks On Wed, 23 Jul 2025 at 17:34, Greg Troxel via QGIS-User < qgis-user@lists.osgeo.org> wrote: > Vedran Stojnović via QGIS-User <qgis-user@lists.osgeo.org> writes: > > > QGIS should do on-the-fly reprojection, but you can count on only the > > defined vertices of geometry as far as I know. > > Do you mean: > > The meaning of a linestring is the points at vertices, and between > them, a straight line in whatever CRS the data is currently expressed > in? > > and that the points are transformed, and then the straight line between > is straight in the sense of the target CRS? > > I think that's what Javier is trying to do: to take a line with two points > in > EPSG:3395, and a line *that is straight in 3395* with three points, and > transform it all to 3857. > > That should result in a line (layer 2d) that is straight in 3857, and > then two lines, each straight in 3857, that are from lower-left to > middle and middle to upper-right, with each transformed. > > > You can execute "Densify by interval" or "Densify by count" on source > > geometries in source CRS - you can use the "Edit features in place" > option. > > This will convert your "line" to "linestring" with many smaller segments. > > Please check if this solves your problem? > > > > I remember that there was an announcement for some QGIS 3.x version that > > this "densification" of vertices is done automatically, but maybe it > > stopped working or works for only certain source CRSs (maybe the ones > > defined in Lat-Long) - it seems that it works for "Identify tool". > > Are you suggesting that when qgis transforms a linestring, it is doing > some kind of densification to show a line in the target CRS which is the > transform of e.g. the source-CRS line that fits in the canvas? > _______________________________________________ > 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 >
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