Working on QField I had the necessity of passing values from the QtActivity.java to the Qt cpp world, here how I did it using an Intent that is sent to the QtActivity (the one you should not edit that comes with Qt). For much more information see this post series. hopefully this will be helpful to someone. private void startQtActivity() { String dotqgis2_dir = “Test dotqgis2_dir”; String share_dir = “Test share_dir”; // forward to startQtActivity and Read more…
While preparing some 3D scenes for an exibition I discovered the SpaceMouse by 3dconnexion. A neat device we plan on installing in front of a projected globe. To get it to run in Ubuntu first get the drivers from www.3dconnexion.eu/service/drivers.html then sudo apt-get install libmotif3 mkdir -p /tmp/3D3dxware-linux cd /tmp/3D3dxware-linux cp ~/Downloads/3dxware-linux-v1-8-0.x86_64.tar.gz /tmp/3D3dxware-linux tar -xf 3dxware-linux-v1-8-0.x86_64.tar.gz sudo ./install-3dxunix.sh answer yes, 4, yes. That’s it, you might get an error saying: “Red Hat EL 7 currently Read more…
Whenever you start QGIS you basically do it because? Right, because you need to do GIS work. Ah, how I love rhetorical questions to start a post. And most of the time one continues to work on a QGIS project which he has prepared before. For me 99% of the time, I start QGIS, move the mouse to the top left over “Project” go to “Recent Projects” and select the one I want. If I am lucky Read more…
PyQGIS now supports a nice new addition for handling edit sessions in layers. This way, changes get committed automatically at the end of a successful (python) edit session.
with edit(layer):
do your changes here()
Performance This project is all about performance of QGIS with a postgres/postgis database. A lot of people have QGIS connected to postgres/postgis (if you don’t: it’s a great combination in the open source geo stack). Databases are really optimized for querying. They keep indexes of geometries to be able to find them faster, they keep indexes of attributes to filter faster – and finally they often run on powerful servers. QGIS tries to be smart Read more…
QField Experimental is out, after a couple of months of requirements gathering, private early alpha testing and foremost tons of emails requesting access to the testes group we decided today to put the current BETA version in the playstore. This means that from now on you can install QField just like any other android app by using the playstore.
I promised that I will write a bit about what I’ve been up to at the last QGIS developer meeting – apart from the social part we also got some work done there. So let me start with something that really matters to me and I think can make a big impact. Unit Testing At the start of the developer conference Alessandro Pasotti asked me to do a workshop on unit tests. We quickly squatted Read more…
After a week with QGIS members from all over the world we arrived back home and can say that once again, the QGIS developer meeting #13 was a great event. It started with the QGIS User Conference where a lot of interesting talks from experiences in day-to-day usage to low-level technology insights could be attended. Tim Sutton in the end took the chance to shortcut users and developers directly, asking for feedback and advice – Read more…