This is a learning project of myself to explore how to integrate OpenSceneGraph into Qt6 for visualization purposes in computer vision research.
The project uses conan and CMake for dependency and build management, respectively.
Right now it is only tested on Ubuntu 20.04.
Starting in the root folder run the following commands:
conan create ./fontconfig_conanfile.py fontconfig/system@mwudenka/snapshot
mkdir -p build
cd build
conan install .. --build=missing
cmake ..
cmake --build .
cd ..As of writing the conan center recipe of fontconfig hardcodes the sysconfdir
to a path on the conan build server
(see line 61).
One way around that issue is to set the environment variable FONTCONFIG_PATH.
But that means that every user needs to know where fonts are stored on his machine.
That's why I created a recipe that installs (if not already available)
fontconfig using the system package manager (apt in that case) and
provides conan all paths important for linkage.
To execute the build result enter:
./build/bin/ConanQtOSGDemoExeYou should see a window appearing:
First, it demonstrates one possible integration of OSG into the
Qt6 Model-View-Delegate
pattern. Have a look at src/models/QPointCloudModel.(h|cpp) and
src/models/QPointCloudView.(h|cpp). Some generic parts are extracted to
src/utils/QOSGWidget.(h|cpp), src/views/QAbstractOSGView.(h|cpp),
src/utils/QPickHandler.(h|cpp) and src/utils/PickableGeode.(h|cpp)
in the hope that they can be reused.
Sticking to the MVD standards makes it easy to use generic classes as the
QTableView and QItemSelectionModel.
It also demonstrates how a UI can be modularized using
widget promotion.
That way ui/PointFactoryControl.ui is imported into ui/MainWindow.ui.
Such an ui file can be edited using the Qt Designer:
I recommend using CLion with the conan addon.