On Fri, Dec 20, 2019, 3:42 PM Huidae Cho <gras...@gmail.com> wrote: > Vaclav, > > rollApp looks good, but it's read-only without a plan. I can start the > GUI, but I cannot create a new location, which means no GRASS session. Is > there a sample location there so I can actually try it in a read-only mode? >
There is a workaround: Change GRASS database directory to /tmp. Then, you can download a sample location and work with it. Perhaps a state GRASS could detect and switch to /tmp automatically. > Thanks, > Huidae > > On Fri, Dec 20, 2019 at 10:48 AM Vaclav Petras <wenzesl...@gmail.com> > wrote: > >> Dear all, >> >> Following posts on Binder - mybinder.org [1] and CoCalc - cocalc.com [2, >> 3], I would like to introduce also rollApp - rollapp.com, another >> alternative for "Try online" link. It is a freemium service providing >> access to many (mostly) open source applications through a web browser >> (i.e., in cloud). You need to log in (e.g., with Google Account) to access >> it and you can't save data without purchasing a plan, but you can run >> applications and access the Internet. (With a plan, you can connect >> different storage such as Drobox or Google Drive.) >> >> It can run GRASS GIS for couple years already. You can try it here: >> >> https://www.rollapp.com/app/grassgis (page with a Launch button) >> https://www.rollapp.com/launch/grassgis (direct link with possibly >> sub-optimal results) >> >> [1] https://lists.osgeo.org/pipermail/grass-dev/2019-August/093053.html >> [2] https://lists.osgeo.org/pipermail/grass-dev/2019-August/093058.html >> [3] https://lists.osgeo.org/pipermail/grass-dev/2019-December/093910.html >> >> Right now, it would not work well as a "try online" tool, but it could. >> Continue reading if you want to know details. >> >> I worked with them in the past I bit and made some fixes in GRASS GIS >> which helped rollApp to start GRASS GIS. >> >> https://trac.osgeo.org/grass/changeset/70461 >> https://trac.osgeo.org/grass/changeset/70335 >> https://trac.osgeo.org/grass/changeset/70336 >> https://trac.osgeo.org/grass/changeset/70450 >> https://trac.osgeo.org/grass/changeset/70357 >> >> Some additional commits since then (for example, removal of tput) also >> improved start in environments such as rollApp. >> >> >> https://github.com/OSGeo/grass/commit/5c46b130ea50df148ebc73699974c2a621e15e4b >> >> One ongoing issue (which is possibly relevant to CoCalc, too) is that >> GRASS GIS can start only with terminal. You can reproduce the issue locally >> on Linux using `nohup grass` or, at least on Ubuntu with Unity, by pressing >> Ctrl+F2 and typing "grass". >> >> https://trac.osgeo.org/grass/ticket/3295 >> >> Nevertheless, you can start GRASS GIS even with free account, in the >> startup screen change the database directory to /tmp, download a sample >> location, and start GRASS GIS. I think the GUI is little bit faster than in >> CoCalc. The command line is worse than what you have in CoCalc (fixed size >> xterm versus in-browser one). >> >> There is couple things which can be done in GRASS GIS or in rollApp to >> make this a great "try online" option (even perhaps as a secondary one in >> case we want to favor an open source platform). In any case, I would like >> to find a place on the new website to have rollApp listed as one option for >> using GRASS GIS online. >> >> Let me know what you think, >> Vaclav >> _______________________________________________ >> grass-dev mailing list >> grass-dev@lists.osgeo.org >> https://lists.osgeo.org/mailman/listinfo/grass-dev > > > > -- > Huidae Cho, Ph.D., GISP, PE (MD), CFM, M.ASCE > Open Source GIS Developer, GRASS GIS Development Team >
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