Hi Bernd, It's possible to load a WMS layer in your project for Q-field, maybe that's a solution? But then of course you need an internet connection all the time...
Greetings Wouter Op zo 24 mrt. 2019 om 21:37 schreef Bernd Vogelgesang < bernd.vogelges...@gmx.de>: > Hi, > > I need an aerial basemap for my QField-project to be able to locate > positions. As QField has not the ability to navigate to a point or > indicate the direction of movement, provided only with a topographic > basemap, I'm stumbling through the forest and have a hard time finding > the positions. > > The project area is huge, around 400 square kilometers! I have a Mrsid > file of the area of 1.6 GB with 20 centimeter resolution, > transformed with gdal_translate to tiff is 42.5 GB, > compressed with gdal_transform with jped-compression 50% 968 MB, > resampled to 40cm resolution and 50% jpeg has 295 MB > > I used the QField sync plugin to generate a baselayer in gpgk-format > from this ,which has 540 MB with 40 cm resolution. > > Unfortunately, on the tablet, the baselayer is loading so slow, that it > is impossible to work with it. Each redraw takes around 10 seconds in > the small scale, rising to infinity in higher scales. > > I wonder if there are other approaches recommendable, for example > splitting the image into separate layers for bigger regions, which I > could then turn on and off, or if I should prepare the image apart from > using the plugins converter to gpkg. > > Due to the enourmous amount of time needed to process the image on the > PC, a trial-and-error approach seems not to be feasable, so I ask you if > someone can recommend an approach for such a huge beast. > > > Thanx in advance, > > Bernd > > _______________________________________________ > 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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